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Raspberry Pi 3B+
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---------------
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Building more than ubxtool, navdump, and navparse will require quite a bit of available RAM.
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In the Raspbian image, the default swap file size for _/var/swap_ is only 100MB.
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More swap space will be needed if you want the compiling to finish without it seeming
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to take a geologic age.
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The swap file is configured in _/etc/dphys-swapfile_ and managed using the __/sbin/dphys-swapfile__ utility.
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Assuming the output of _df -h_ and _free_ indicate you have sufficient free file space and
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the swap file is indeed 100MB (respectively), and you do not have Chromium running (it eats
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RAM), you edit the config file (suggest changing 100 to 960) and then (as root):
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```
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/sbin/dphys-swapfile swapoff
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echo Be Patient. This could take a while
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/sbin/dphys-swapfile setup
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/sbin/dphys-swapfile swapon
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```
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