See also the comments in
https://unix.stackexchange.com/questions/106614/preseed-cfg-ignoring-hostname-setting,
and in particular the reference to
http://d-i.alioth.debian.org/manual/en.i386/apbs04.html#preseed-network
The hostname is probably a very common case though.
I am currently using this in my preseed file (tested with Ubuntu 16.04.2
mini.iso):
d-i preseed/early_command string hostname=ubuntu; \
sed "s/^127.0.1.1\t.*/127.0.1.1\t$hostname/" -i /etc/hosts; \
echo "$hostname" > /etc/hostname; hostname "$hostname"
Proposal: revert the current patch and suggest the above preseed config *or*
modify preseed:
1. Change sed commands to something like the above.
2. Remove "f ! echo "$RET" | grep -q 'ubuntu';" such that the hostname is
unconditionally set when netcfg/hostname is given.
Note that "127.0.1.1\t%s" originates from netcfg-1.135ubuntu4.2,
function netcfg_write_common in netcfg-common.c. This exact match does
not rely on the current hostname which should possible regex injection
issues.
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https://bugs.launchpad.net/bugs/1452202
Title:
ubuntu preseed install fails to set a hostname
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