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ipconfig: Document setting of NIS domain name

ic_do_bootp_ext() is responsible for parsing the "ip=" and "nfsaddrs="
kernel parameters. If a "." character is found in parameter 4 (the
client's hostname), everything before the first "." is used as the
hostname, and everything after it is used as the NIS domain name (but
not necessarily the DNS domain name).

Document this behaviour in Documentation/filesystems/nfs/nfsroot.txt,
as it is not made explicit.

Signed-off-by: Chris Novakovic <chris@chrisn.me.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
hifive-unleashed-5.1
Chris Novakovic 2018-04-24 03:56:32 +01:00 committed by David S. Miller
parent 5cb5ce3363
commit 660de409e2
1 changed files with 7 additions and 4 deletions

View File

@ -123,10 +123,13 @@ ip=<client-ip>:<server-ip>:<gw-ip>:<netmask>:<hostname>:<device>:<autoconf>:
Default: Determined using autoconfiguration.
<hostname> Name of the client. May be supplied by autoconfiguration,
but its absence will not trigger autoconfiguration.
If specified and DHCP is used, the user provided hostname will
be carried in the DHCP request to hopefully update DNS record.
<hostname> Name of the client. If a '.' character is present, anything
before the first '.' is used as the client's hostname, and anything
after it is used as its NIS domain name. May be supplied by
autoconfiguration, but its absence will not trigger autoconfiguration.
If specified and DHCP is used, the user-provided hostname (and NIS
domain name, if present) will be carried in the DHCP request; this
may cause a DNS record to be created or updated for the client.
Default: Client IP address is used in ASCII notation.