Some externals may wish to provide custom init systems for tightly
integrated boot. This has been supported through the BR2_INIT_NONE,
however a downside to the BR2_INIT_NONE is it forces the custom init
system to use either skeleton-custom and roll a custom skeleton for
each target, or skeleton-init-none which isn't a complete skeleton.
Allowing br2-external to define custom BR2_INIT_* means they can now
safely 'select' the BR2_PACKAGE_SKELETON_INIT_*, and re-use any of the
skeletons in Buildroot, or one from a br2-external tree.
Signed-off-by: Brandon Maier <brandon.maier@rockwellcollins.com>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
In preparation for supporting br2-external inits, move the 'select' for
the BR2_PACKAGE_SKELETON_INIT_* to their respective init systems. This
will allow a br2-external init to 'select' which skeleton it needs as a
default skeleton.
Signed-off-by: Brandon Maier <brandon.maier@rockwellcollins.com>
[yann.morin.1998@free.fr:
- add comment to init choice, to remind why selecting skeletons is OK
]
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
Today, the BR2_ROOTFS_SKELETON_CUSTOM is the only way to build a custom
skeleton. But it's limiting as users must provide a pre-built skeleton
for each target. Supporting a br2-external package allows users to build
up a skeleton and customize it with their own KConfig options.
Signed-off-by: Brandon Maier <brandon.maier@rockwellcollins.com>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
Use "/usr/bin:/usr/sbin" as the default path if BR2_ROOTFS_MERGED_USR
is enabled, otherwise use "/bin:/sbin:/usr/bin:/usr/sbin".
Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
Currently, we define the so-called "overflow group" as 'nogroup'.
However, one practical issue is that systemd-sysusers will otherwise
create a 'nobody' group with gid 999, because that's is what is usual to
define the overflow group: users and groups are defined in LSB (Linux
Standard Base):
https://refspecs.linuxfoundation.org/LSB_5.0.0/LSB-Core-generic/LSB-Core-generic/usernames.html
Quoting: "If the username exists on a system,then they should be in the
suggested corresponding group".
Only Debian and derivatives depart from this custom, naming it 'nogroup'
(hence the rationale for commit 908198e756 (system/skeleton: remove
spurious group 'nobody').
See also commit 9c67af2c52 (system/skeleton: use uid/gid 65534 for
nobody/nogroup), and a related discussion on LWN.net (key is "overflow
UID" which also applies to GID):
https://lwn.net/Articles/695478/
Use the recommended groupname 'nobody'. Adapt packages accordingly.
Signed-off-by: Norbert Lange <nolange79@gmail.com>
[yann.morin.1998@free.fr:
- reword commit log
- extend commit log with more references (commits and LWN)
]
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
Currently, the dependencies for the init system choice, and the
dependencies for the package, are slightly different, and not in the
same order, the latter making it difficult to assess consistency between
the two.
Fix all that, by cross-duplicating dependencies from the init choice and
the package, and order the dependencies according to the manual (arch
first, toolchain, then the others).
Note that some dependencies are redundant, but kept nonetheless for
correctness:
- BR2_USE_MMU is implied by BR2_TOOLCHAIN_USES_GLIBC, but systemd does
use fork();
- !BR2_STATIC_LIBS is also implied by BR2_TOOLCHAIN_USES_GLIBC, but it
is also inherited from kmod which we select;
- BR2_TOOLCHAIN_HAS_THREADS is also implied by BR2_TOOLCHAIN_USES_GLIBC,
but systemd does use pthread_*() functions.
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
The default inittab files added by busybox and sysvinit run 'swapon -a'
during init and 'swapoff -a' during shutdown.
But, the swapon/swapoff programs are not guaranteed to be
available. For the busybox versions, it is steered by
CONFIG_SWAPON/CONFIG_SWAPOFF. For the util-linux versions, it is steered by
BR2_PACKAGE_UTIL_LINUX_BINARIES.
In a case where swapon/swapoff is not available but the inittab tries to
execute them, the boot log would be polluted by error messages like:
swapon: not found
Avoid this by commenting out the swapon/swapoff lines if the swapon/swapoff
binaries are not available.
Signed-off-by: Thomas De Schampheleire <thomas.de_schampheleire@nokia.com>
[Peter: test with -x]
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
In gcc 5.1.0, a change was introduced which causes internal search paths
inside the sysroot to be relative to 'lib64' rather than 'lib'. See [1] [2]
and [3].
For example for dtc:
LD convert-dtsv0
/opt/buildroot/output/host/opt/ext-toolchain/bin/../lib/gcc/mips64-octeon-linux-gnu/7.3.0/../../../../mips64-octeon-linux-gnu/bin/ld: cannot find crt1.o: No such file or directory
/opt/buildroot/output/host/opt/ext-toolchain/bin/../lib/gcc/mips64-octeon-linux-gnu/7.3.0/../../../../mips64-octeon-linux-gnu/bin/ld: cannot find crti.o: No such file or directory
collect2: error: ld returned 1 exit status
make[1]: *** [Makefile:236: convert-dtsv0] Error 1
make[1]: *** Waiting for unfinished jobs....
make[1]: Leaving directory '/opt/buildroot/output/build/dtc-1.4.7'
make: *** [package/pkg-generic.mk:241: /opt/buildroot/output/build/dtc-1.4.7/.stamp_built] Error 2
In this case, crt1.o was searched for in following locations:
16073 access("/opt/buildroot/output/host/opt/ext-toolchain/bin/../lib/gcc/mips64-octeon-linux-gnu/7.3.0/n32/octeon3/crt1.o", R_OK) = -1 ENOENT (No such file or directory)
16073 access("/opt/buildroot/output/host/opt/ext-toolchain/bin/../lib/gcc/n32/octeon3/crt1.o", R_OK) = -1 ENOENT (No such file or directory)
16073 access("/opt/buildroot/output/host/opt/ext-toolchain/bin/../lib/gcc/mips64-octeon-linux-gnu/7.3.0/../../../../mips64-octeon-linux-gnu/lib/mips64-octeon-linux-gnu/7.3.0/n32/octeon3/crt1.o", R_OK) = -1 ENOENT (No such file or directory)
16073 access("/opt/buildroot/output/host/opt/ext-toolchain/bin/../lib/gcc/mips64-octeon-linux-gnu/7.3.0/../../../../mips64-octeon-linux-gnu/lib/../lib32-fp/crt1.o", R_OK) = -1 ENOENT (No such file or directory)
16073 access("/opt/buildroot/output/host/mips64-buildroot-linux-gnu/sysroot/lib64/mips64-octeon-linux-gnu/7.3.0/n32/octeon3/crt1.o", R_OK) = -1 ENOENT (No such file or directory)
16073 access("/opt/buildroot/output/host/mips64-buildroot-linux-gnu/sysroot/lib64/../lib32-fp/crt1.o", R_OK) = -1 ENOENT (No such file or directory)
16073 access("/opt/buildroot/output/host/mips64-buildroot-linux-gnu/sysroot/usr/lib64/mips64-octeon-linux-gnu/7.3.0/n32/octeon3/crt1.o", R_OK) = -1 ENOENT (No such file or directory)
16073 access("/opt/buildroot/output/host/mips64-buildroot-linux-gnu/sysroot/usr/lib64/../lib32-fp/crt1.o", R_OK) = -1 ENOENT (No such file or directory)
16073 access("/opt/buildroot/output/host/opt/ext-toolchain/bin/../lib/gcc/mips64-octeon-linux-gnu/7.3.0/crt1.o", R_OK) = -1 ENOENT (No such file or directory)
16073 access("/opt/buildroot/output/host/opt/ext-toolchain/bin/../lib/gcc/crt1.o", R_OK) = -1 ENOENT (No such file or directory)
16073 access("/opt/buildroot/output/host/opt/ext-toolchain/bin/../lib/gcc/mips64-octeon-linux-gnu/7.3.0/../../../../mips64-octeon-linux-gnu/lib/mips64-octeon-linux-gnu/7.3.0/crt1.o", R_OK) = -1 ENOENT (No such file or directory)
16073 access("/opt/buildroot/output/host/opt/ext-toolchain/bin/../lib/gcc/mips64-octeon-linux-gnu/7.3.0/../../../../mips64-octeon-linux-gnu/lib/crt1.o", R_OK) = -1 ENOENT (No such file or directory)
16073 access("/opt/buildroot/output/host/mips64-buildroot-linux-gnu/sysroot/lib64/mips64-octeon-linux-gnu/7.3.0/crt1.o", R_OK) = -1 ENOENT (No such file or directory)
16073 access("/opt/buildroot/output/host/mips64-buildroot-linux-gnu/sysroot/lib64/crt1.o", R_OK) = -1 ENOENT (No such file or directory)
16073 access("/opt/buildroot/output/host/mips64-buildroot-linux-gnu/sysroot/usr/lib64/mips64-octeon-linux-gnu/7.3.0/crt1.o", R_OK) = -1 ENOENT (No such file or directory)
16073 access("/opt/buildroot/output/host/mips64-buildroot-linux-gnu/sysroot/usr/lib64/crt1.o", R_OK) = -1 ENOENT (No such file or directory)
As can be seen above, all attempted paths contain 'lib64' as base,
instead of 'lib' or 'lib32', e.g.
.../sysroot/lib64/../lib32-fp/crt1.o
.../sysroot/lib64/crt1.o
This problem was detected on a gcc 7.x toolchain provided by Marvell as part
of their Octeon SDK. For this toolchain, here are the values of the paths
as detected by the Buildroot toolchain logic, for two different Octeon
processors:
- octeon2 (soft-float) (-mabi=n32 -march=octeon2):
SYSROOT_DIR=/opt/buildroot/output/host/opt/ext-toolchain/mips64-octeon-linux-gnu/sys-root/;
ARCH_SYSROOT_DIR=/opt/buildroot/output/host/opt/ext-toolchain/mips64-octeon-linux-gnu/sys-root/;
ARCH_SUBDIR=;
ARCH_LIB_DIR=lib32/octeon2;
SUPPORT_LIB_DIR=/opt/buildroot/output/host/opt/ext-toolchain/mips64-octeon-linux-gnu/lib32/octeon2/
- octeon3 (hard-float) (-mabi=n32 -march=octeon3):
SYSROOT_DIR=/opt/buildroot/output/host/opt/ext-toolchain/mips64-octeon-linux-gnu/sys-root/;
ARCH_SYSROOT_DIR=/opt/buildroot/output/host/opt/ext-toolchain/mips64-octeon-linux-gnu/sys-root/;
ARCH_SUBDIR=;
ARCH_LIB_DIR=lib32-fp;
SUPPORT_LIB_DIR=/opt/buildroot/output/host/opt/ext-toolchain/mips64-octeon-linux-gnu/lib32-fp/
For both cases (MIPS64n32) Buildroot created a symlink 'lib32->lib', from
SYSTEM_LIB_SYMLINK in system/system.mk. Additionally, the function
create_lib_symlinks in
toolchain/toolchain-external/pkg-toolchain-external.mk will use ARCH_LIB_DIR
and create an additional link $(ARCH_LIB_DIR)->lib.
For the Octeon3 case this thus results in the following symlinks (where the
'lib32' one is normally not needed):
lib32 -> lib/
lib32-fp -> lib/
Since the toolchain is searching based on a 'lib64' component, it will fail
to find its internal paths.
To solve the problem, we need to create an additional symlink 'lib64':
lib64 -> lib/
[1] 257ccd463a
[2] https://gcc.gnu.org/ml/gcc-patches/2014-10/msg03377.html
[3] https://gcc.gnu.org/ml/gcc-patches/2014-11/msg00539.html
Signed-off-by: Thomas De Schampheleire <thomas.de_schampheleire@nokia.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
It is valid that there is no system-wide default time zone defined, in
which case Etc/UTC is assumed.
Fixes: #12316
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
Cc: Martin Bark <martin@barkynet.com>
Cc: Alexandre Belloni <alexandre.belloni@bootlin.com>
Cc: Richard Braun <rbraun@sceen.net>
Cc: Andrew Trapani <andrew.trapani@ontera.bio>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
This patch makes openrc-netifrc package aware of BR2_SYSTEM_DHCP
config, and if set, will start dhcp daemon on configured interface.
Signed-off-by: Michał Łyszczek <michal.lyszczek@bofc.pl>
[yann.morin.1998@free.fr:
- simplify condition for BR2_SYSTEM_DHCP
- reword commit log
]
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
We install a template getty service, and we 'instantiate' it in the
default runlevel, using the configured tty.
Ideally, packages that provide a getty program would be responsible
for installing the corresponding service file. However, to keep
consistency with the existing init systems (busybox, systemd, and
sysv), so we do provide it from the openrc package itself.
OpenRC only acts on the files in a runlevel sub-directory, but the
documentation [0] actually suggests that the instance symlink be done
in init.d, and then again symlinked into the actual runlevel
sub-directory. So, we abide by the rules.
Also, to be noted, the getty service file is installed without ensuring
that a getty command is available. This again is not unlike other init
systems, sysvinit and busybox, which behave the same.
[0] https://wiki.gentoo.org/wiki/OpenRC
Signed-off-by: Michał Łyszczek <michal.lyszczek@bofc.pl>
[yann.morin.1998@free.fr:
- move getty template to openrc package (Thomas)
- fix namespace of the vaiables (Thomas)
- simplify creation of the defaults file
- rewrite commit log
]
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
Cc: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
We couldn't track down the reason why the profile sets $PAGER other
than that it has always been there.
However, it defeats pager autodetection by various tool (systemctl,
nmcli, etc.) that would otherwise prefer less to more, in case both
were available.
Let's drop it. My desktop Linux distro (Fedora) doesn't seem to set it
either and the universe doesn't seem to have collapsed yet.
Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
This is very basic settings for openrc init.
* system/Config.in
Allows to select openrc as init system (which auto selects
openrc-skeleton and openrc package).
* package/ifupdown-scripts/Config.in
openrc has its own service to bring up/down interfaces, so
ifupdown-scripts should not be enabled when openrc is enabled to
prevent service clash.
Signed-off-by: Michał Łyszczek <michal.lyszczek@bofc.pl>
[Thomas: take into account the !BR2_STATIC_LIBS dependency]
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
The fields in /etc/shadow were set as follows:
root::10933:0:99999:7:::
This sets the date of last password change to Jan 1, 2000, the minimum
password age to 0 days, the maximum password age to near-infinity, and a
warning period of 7 days. In practice, this means the password never
expires. So all of this is quite useless.
On the other hand, mkusers creates lines without all of these options.
It just sets ::::: which disables password expiration completely.
To make things consistent, do the same for the skeleton entries.
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
If the user is brave enough to use a custom rootfs skeleton then we must
not prevent using merged /usr too. Actually it is already possible to do
this, although indirectly, by selecting BR2_INIT_SYSTEMD.
Signed-off-by: Carlos Santos <casantos@datacom.ind.br>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
We substitute the path specified in system/skeleton/etc/profile with
the path specified in the configuration variable
$(BR2_SYSTEM_DEFAULT_PATH).
$(BR2_SYSTEM_DEFAULT_PATH) is a Kconfig string, so it is already
double quoted. This means that export PATH=value will now be export
PATH="value" in /etc/profile, which is perfectly fine.
Signed-off-by: Markus Mayer <mmayer@broadcom.com>
Reviewed-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
[Thomas: rework commit log about the double quoting]
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
The configuration option BR2_SYSTEM_DEFAULT_PATH allows the user to
override the default path, which can be used by /etc/profile and some
system daemons.
It defaults to the value previously hard-coded in /etc/profile. This
default should be suitable for most users.
Signed-off-by: Markus Mayer <mmayer@broadcom.com>
Reviewed-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
As SHA256 is now default, removing weak MD5 option. C libraries now
all support the SHA methods.
glibc 2.7+
uclibc (bdd8362a88 package/uclibc: defconfig: enable sha-256...)
musl 1.1.14+
One issue this would prevent, is a host tool issue with a FIPS enabled
system where weak ciphers/methods are disabled. It seems the crypt(3)
call is impacted by /proc/sys/crypto/fips_enabled (per crypt(3) man
page). It results in mkpasswd returning "(EPERM) crypt failed."
Rather then create a Buildroot host dependency check, this patch
removes the potential corner case from being selected.
Acked-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: Matthew Weber <matthew.weber@rockwellcollins.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
This patch changes the default mkpasswd method to SHA256 from MD5.
The change both improves the quality of the hash used and prepares
for eventually removing MD5 as a option.
Reviewed-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: Matthew Weber <matthew.weber@rockwellcollins.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
This patch drops the comment about checking the C libraries version as
they now all support it by default
glibc 2.7+
uclibc (bdd8362a88 package/uclibc: defconfig: enable sha-256...)
musl 1.1.14+
Reviewed-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: Matthew Weber <matthew.weber@rockwellcollins.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Since version v239, systemd-nspawn unconditioanlly uses prlimit(2),
which is not implemented in uClibc-ng. systemd-nspawn can not be
disabled.
This makes systemd glibc-only again.
After a bit of discussion with upstream (om IRC), it looks very
improbable that they accept a patch making systemd-nspawn optional.
They would probably consider a patch that provides that syscall wrapper
if it is missing, though, but that's less trivial...
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Waldemar Brodkorb <wbx@openadk.org>
Cc: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Cc: Peter Korsgaard <peter@korsgaard.com>
Reviewed-by: Matt Weber <matthew.weber@rockwellcollins.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
In commit 879fa7f82a, the
BR2_INIT_SYSTEMD option was changed to allow selecting with a uClibc
toolchain. Unfortunately, the corresponding Config.in comment, which
was already bogus, was not updated to take into account the numerous
dependencies of BR2_INIT_SYSTEMD.
Due to this, even if you have uClibc enabled, the BR2_INIT_SYSTEMD
option may not be visible, and the Config.in comment may also not be
visible, leaving the user in the dark.
This commit fixes the dependencies of the Config.in comment so that
they match the one of the BR2_INIT_SYSTEMD option.
Reported-by: Raphael Jacob <r.jacob2002@gmail.com>
Cc: Raphael Jacob <r.jacob2002@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
The PAGER environment variable is including a blank character at the
end. Remove this.
A for loop has been unsetting the variable inside the loop, this is only
needed once at the end of the loop.
Signed-off-by: Florian La Roche <F.LaRoche@pilz.de>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Some applications, e.g. bashs process subsitution feature, rely on the
convention of `/dev/fd` being a symbolic link to `/proc/self/fd`.
When a static /dev is used on a readonly rootfs then the runtime ln
invocations in the inittab will fail, so we need to add the symlinks at
build time. Makedevs doesn't support creating symlinks, so instead add the
symlinks to the default skeleton.
For non-static /dev setups, the kernel will mount devtmpfs which shadows the
/dev of the rootfs, but then the runtime ln invocations in inittab will
create the symlinks.
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
We need to disable any systemd parts using either IDN, NSS or gshadow.
IDN is only disabled in C library function call to getnameinfo(),
it does not effect libidn/libidn2 usage in systemd.
Tested with qemu-system-arm.
Signed-off-by: Waldemar Brodkorb <wbx@openadk.org>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Only busybox and sysvinit handle the BR2_TARGET_GENERIC_GETTY_TERM and
BR2_TARGET_GENERIC_GETTY_OPTIONS options; the other init systems do
not.
So, protect those options behind appropriate dependencies on busybox
or sysvinit.
Fixes#10301.
Reported-by: Michael Heinemann <posted@heine.so>
Suggested-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Reviewed-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
The skeletons are based on the selection of BR2_INIT_*, so add init- to
the package name to make this clearer. While skeleton-sysv is relatively
clear, skeleton-common and skeleton-none are less clear on their
relationship to BR2_INIT_*. So rename skeleton-sysv to conform to a
clearer pattern.
Signed-off-by: Cam Hutchison <camh@xdna.net>
Acked-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
The skeletons are based on the selection of BR2_INIT_*, so add init- to
the package name to make this clearer. While skeleton-systemd is
relatively clear, skeleton-common and skeleton-none are less clear on
their relationship to BR2_INIT_*. So rename skeleton-systemd to conform
to clearer pattern.
Signed-off-by: Cam Hutchison <camh@xdna.net>
Acked-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
The skeletons are based on the selection of BR2_INIT_*, so add init- to
the package name to make this clearer. The name skeleton-none implies no
skeleton at all, not a base skeleton with no init-specific files.
Signed-off-by: Cam Hutchison <camh@xdna.net>
Acked-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
When the rootfs is readonly, systemd will expect /var to be writable.
Because we do not really have a R/W filesystem to mount on /var, we make
it a tmpfs [*], and use the systemd-tmpfiles feature to populate it with
"factory" defaults.
We obtain those factory defaults by redirecting /var to that location at
build time, using a symlink /var -> /usr/share/factory which is the
location in which systemd-tmpfiles will look for when instructed to
"recursively copy" a directory.
With a line like:
C /var/something - - - -
it will look for /usr/share/factory/something and copy it (recursively
if it is a directory) to /var/something, but only if it does not already
exist there.
We also mark this copy with the exclamation mark, as it is only safe to
copy on boot, not when changing targets.
To be noted: the real format for such lines are:
C /var/something - - - - /from/where/to/copy/something
But if the source is not given, then it is implicitly taken from
/usr/share/factory (which in our case is as-good a location as whatever
else, so we use it, and thus we need not specify the source of the
copy).
Note that we treat symlinks a little bit specially, by creating symlinks
to the factory defaults rather than copying them.
Finally, /var at build time is a symlink, but at runtime, it must be a
directory (so we can mount the tmpfs over there). We can't change that
as a target-finalize hook, because:
- some packages may want to set ownership and/or access rights on
files or directories in /var, and that only happens while assembling
the filesystem images; changing /var from a symlink to a (then
empty) directory would break this;
- /var would be a directory on sub-sequent builds (until the next
"make clean").
Instead, we use the newly-introduce pre- and post-rootfs command hooks,
to turn /var into a directory before assembling the image, and back to a
symlink after assembling the image.
[*] People who want the factory-defaults only on first boot will have
to tweak the fstab to mount something else than a tmpfs on /var.
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Reviewed-by: Romain Naour <romain.naour@gmail.com>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
For systemd, we create a simple /etc/fstab with only an entry for /, as
systemd otherwise automatically mounts what it needs where it needs it.
systemd does not like that the content of /var be symlinks to /tmp,
especially journald that starts before /tmp is mounted, and thus the
journal files are hidden from view, which causes quite a bit of fuss...
Instead, move the current /var to a sysv-only skeleton.
systemd at install time will create the /var content it needs, so we
just create an empty /var for systemd.
systemd would create /home and /srv at runtime if they are missing, but
it is better to create them right now, to simplify supporting systemd on
a RO filesystem in the (near) future.
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Maxime Hadjinlian <maxime.hadjinlian@gmail.com>
Reviewed-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Currently, we use the same skeleton for sysv-like init systems and
systemd, even though systemd has some peculiarities that makes our
default skeleton unfit.
So, we'll need to provide different skeletons (really, only part of
it) for sysv-like and systemd. In addition, in order to support the
"no init system" (BR2_INIT_NONE) use case, we introduce a "none"
skeleton.
Introduce three new skeleton packages, aptly named skeleton-sysv,
skeleton-systemd and skeleton-none. All three are providers of the
skeleton virtual package, in lieu of the skeleton-common package,
which is now a simple dependency of all three new skeletons.
Those packages are empty for now. In followup changes:
- sysv-specific stuff will be moved out of skeleton-common and into
skeleton-sysv;
- systemd-specific stuff will be added to skeleton-systemd.
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
[Arnout:
- merge with the patch that enables the BR2_INIT_NONE case
- simplify the BR2_PACKAGE_SKELETON_COMMON_ONLY select logic]
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
[Thomas:
- remove the BR2_PACKAGE_SKELETON_COMMON_ONLY logic, and instead
introduce a separate skeleton-none package for the BR2_INIT_NONE]
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
We now have two packages that can act as a skeleton, skeleton-common,
also known as our default skeleton, and skeleton-custom.
This means that the skeleton package can be a standard virtual package
now.
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Move all the handling of the default skeleton into a new package,
skeleton-common.
We don't name it skeleton-default, because it will be further split
later, into a skeleton for sysv and another for systemd, with some parts
still common between the two. So just name it skeleton-common right now;
this will save us a rename later.
While we're at it, also assign to SKELETON_COMMON_TARGET_FINALIZE_HOOKS
instead of directly to the global FINALIZE_HOOKS. Therefore, we don't
need to do all of that in a condition BR2_PACKAGE_SKELETON_COMMON==y.
Note: it would be technically sound to move the skeleton files together
within a sub-directory of the skeleton-common package. However, we refer
the user to those files, from various locations (manual, packages). It
will indeed be easier for the user to find those files in
system/skeleton/ rather than in package/skeleton-common/skeleton/
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Reviewed-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
[Arnout: remove the mkdir $(STAGING_DIR)/usr/include which was removed
in skeleton.mk in master.]
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
For the custom skeleton, we practicaly do nothing, except ensure it
contains the basic, required directories, and that those are properly
setup wrt. merged /usr.
Furthermore, our current skeleton is not fit for systemd, and we'll
have to split things out into various skeletons.
So, off-load the custom skeleton into its own package.
Thus, the existing skeleton package is now limited to:
- when using our default skeleton, install and tweak it properly;
- when using a custom skeleton, do nothing except for depending on
the skeleton-custom package.
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
[Arnout: split off in a separate patch doing only this]
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Our current skeleton is tailored to sysv-like init systems; it is not
fit for systemd-based systems. So, in upcoming changes, we'll add
another skeleton for systemd.
This means we can no longer have the current skeleton default to 'y', or
it would be enabled also for systemd, which would be incorrect.
So, we remove the default to 'y' but have it selected by the default
skeleton choice.
However, we do not yet have a way to directly build (really, install)
the custom skeleton, it is built (really, installed) as a dependency of
the default skeleton. So we must also forcibly select the default
skeleton when using a custom one.
Until we have the means to do only one or the other; i.e. when we have a
virtual skeleton.
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Reviewed-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Setting the root pasword is done in a target-finalize hook, so we do not
need to enforce a dependency from the skeleton onto host-mkpasswd.
Dropping that dependency will simplify making skeleton a virtual
package (in up-coming changes).
Instead, it is now selected as any other package. As such, it is
guaranteed to be built before target-finalize.
This however introduces a slight change in behaviour: previously,
host-mkpasswd would only be built if we needed to hash the root password
from its plain-text value. Now, host-mkpasswd is always built as soon as
the root password is non-empty, even if already pre-hashed.
Since host-mkpasswd is a really tiny weeny package bundled in Buildroot,
with only two C files, built as a single unit with a single gcc call,
the overhead is really minimal. Compared to the simplifications this
will allow in the skeleton packages (plural: common, sysv, systemd,
custom) to come, this overhead is acceptable.
Yet another simplification, even if small, to ease providing multiple
skeletons.
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Reviewed-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Currently, remounting / read-write (or not) is done by the skeleton
package when the init system is either busybox or sysvinit, by
registering a target-finalize hook; it is not done at all for systemd.
Move registering this target-finalize hook to both of busybox and
sysvinit. Leave systemd alone, we'll take care of it later.
Rename the macro to a more meaningful name, and move it to system.mk
with the other such macros.
Yet a little bit less init-system knowledge in the skeleton.
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
[Thomas: remove not-so-useful comments, as pointed by Arnout.]
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Currently, setting the getty is done:
- by the skeleton package when the init system is either busybox or
sysvinit;
- by the systemd package when the init system is systemd;
both by registering a target-finalize hook.
This is not very consistent.
Move setting the getty out of the skeleton and into the package that
provides the init system, by registering a per-package target-fialize
hook.
This offloads yet a bit more out of the skeleton, so that it is easier
to properly separate the skeletons for the various init systems.
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Reviewed-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Some macros, soon some variables, currently defined in the skeleton are
going to be used by other packages.
Some of those variables will be used as Makefile conditions (e.g. in
ifeq() conditions), so they *must* be defined before being used.
Since the skeleton package, starting with an 's', is included quite
late, those variables would not be available to most packages.
Offload the existing macros into the new system/system.mk file, that is
included early, before any package is. Rename the macros to appropriate
names.
Future commits will add new macros and variables in that file.
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Reviewed-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
The ifupdown scripts can be used independently of the init system, be it
sysv, busybox or systemd; they could even be used when there is no init
system (i.e. the user is providing his own).
Currently, those ifupdown scripts are bundled in the skeleton.
But we soon will have a skeleton specific to systemd, so we would be
missing those scripts (when systemd-networkd is not enabled).
So, move those scripts to their own package.
To keep the current behaviour (before it is changed in future commits),
we make that package default to y, but depend on the default skeleton.
Instead of being a target-finalize hook, the scripts are installed as
any other package are, with a package install-target command.
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Arnout Vandecappelle <arnout@mind.be>
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Cc: Maxime Hadjinlian <maxime.hadjinlian@gmail.com>
Reviewed-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
[Thomas: drop empty IFUPDOWN_SCRIPTS_SOURCE]
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Until now, the option BR2_ENABLE_LOCALE was more-or-less controlling
whether NLS support was enabled in packages. More precisely, if
BR2_ENABLE_LOCALE=y, we were not doing anything (so some packages
could have NLS support enabled, some not). And only when
BR2_ENABLE_LOCALE was disabled we were explicitly passing
--disable-nls to packages.
This doesn't make much sense, and there is no reason to tie NLS
support to locale support. You may want locale support, but not
necessarily NLS support. Therefore, this commit introduces
BR2_SYSTEM_ENABLE_NLS, which allows to enable/disable NLS support
globally. When this option is enabled, we pass --enable-nls to
packages, otherwise we pass --disable-nls.
In addition, when this option is enabled and the C library doesn't
provide a full-blown implementation of gettext, we select the gettext
package, which will provide the full blown implementation.
It is worth mentioning that this commit has a visible impact for users:
- Prior to this commit, as soon as BR2_ENABLE_LOCALE=y, packages
*could* provide NLS support. It was up to each package to decide
whether they wanted to provide NLS support or not (we were not
passing --enable-nls nor --disable-nls).
- After this commit, it's BR2_SYSTEM_ENABLE_NLS that controls whether
NLS is enabled or disabled, and this option is disabled by default.
Bottom line: with the default of BR2_SYSTEM_ENABLE_NLS disabled, some
packages may lose NLS support that they used to provide. But we
believe it's a reasonable default behavior for Buildroot, where
generally NLS support is not necessary.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Reviewed-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Even though no timezone implicitly means UTC, systemd is not all that
happy when it does not have a timezone set. This is all fine on a RW
filesystem because systemd will create a symlink on its own (to
Etc/UTC), but not so much on a RO filesystem, causing all kind of
issues at boot time (up to the point that the system is unusable).
We fix that by requiring that the timezone is actually set. The check is
done by verifying that the timezone file is an actual file; if not set,
the test would find a directory and would thus fail.
Update the help entry accordingly.
Also fix indentation in tzdata.
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Richard Braun <rbraun@sceen.net>
Cc: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Cc: Martin Bark <martin@barkynet.com>
Cc: Maxime Hadjinlian <maxime.hadjinlian@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
The BR2_SYSTEM_BIN_SH hidden option defines to what binary the /bin/sh
symlinks should point to. If busybox is chosen, then /bin/sh is created
to point to /bin/busybox.
This works fine with the default installation mode of Busybox, but it
fails with the upcoming "individual binaries" mode, in which each applet
is installed as its own binary, and /bin/busybox doesn't exist: we get
/bin/sh as a broken symlink to /bin/busybox.
Since Busybox already installs its own /bin/sh symlink, properly
pointing to /bin/ash or /bin/hush depending on the selected shell, it
doesn't make sense for the BR2_SYSTEM_BIN_SH logic to override
this. Just let Busybox install its own /bin/sh by making
BR2_SYSTEM_BIN_SH empty when Busybox shell is selected as /bin/sh.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Reviewed-by: Matthew Weber <matthew.weber@rockwellcollins.com>
Acked-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Without this patch, it is not possible to allocate PTYs when a generated
rootfs image with a recent glibc and systemd is launched as a container on
an RHEL7 system via machinectl/systemd-nspawn. The container boots, but
`machinectl login mycontainer` fails. The culprit is /dev/pts/ptmx with
0000 perms.
On a typical system, there are two `ptmx` devices. One is provided by the
devpts at /dev/pts/ptmx and it is typically not directly accessed from
userspace. The other one which actually *is* opened by processes is
/dev/ptmx. Kernel's documentation says these days that /dev/ptmx should be
either a symlink, or a bind mount of the /dev/pts/ptmx from devpts.
When a container is launched via machinectl/machined/systemd-nspawn, the
container manager prepares a root filesystem so that the container can live
in an appropriate namespace (this is similar to what initramfs is doing on
x86 desktops). During these preparations, systemd-nspawn mounts a devpts
instance using a correct ptmxmode=0666 within the container-to-be's
/dev/pts, and it adds a compatibility symlink at /dev/ptmx. However, once
systemd takes over as an init in the container,
/lib/systemd/systemd-remount-fs applies mount options from /etc/fstab to
all fileystems. Because the buildroot's template used to not include the
ptmxmode=... option, a default value of 0000 was taking an effect which in
turn led to not being able to allocate any pseudo-terminals.
The relevant kernel option was introduced upstream in commit 1f8f1e29 back
in 2009. The oldest linux-headers referenced from buildroot's config is
3.0, and that version definitely has that commit. Mount options that are
not understood by the system are anyway ignored, so backward
compatibility is preserved.
Signed-off-by: Jan Kundrát <jan.kundrat@cesnet.cz>
Reviewed-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
[Thomas: fix commit title, adjust commit log.]
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Allow automatic network configuration via systemd-networkd if selected.
If systemd-networkd is enabled and $BR2_SYSTEM_DHCP is set, then create
a .network file to configure the selected network interface via DHCP.
Signed-off-by: Eric Le Bihan <eric.le.bihan.dev@free.fr>
[Thomas:
- merge the two patches from Eric into just one
- instead of generating the dhcp.network file completely from the .mk
file, use a template file, and "sed" it with the right network
interface]
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Commit 006a328ad6 ("util-linux: fix build with ncurses") removed
dependency on BR2_USE_WCHAR, but failed to update the reverse
dependencies of util-linux.
This commit updates comments in Config.in for BR2_USE_WCHAR for reverse
dependencies of util-linux which directly uses wchar now or when it is
pulled from other dependencies.
eudev doesn't use wchar directly, but needs C99 compiler. Autotools
generate code with wchar_t for checking C99 compiler.
Signed-off-by: Rahul Bedarkar <rahul.bedarkar@imgtec.com>
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Cc: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Brandon Maier