This bug was fixed in the package initramfs-tools - 0.136ubuntu2
---------------
initramfs-tools (0.136ubuntu2) focal; urgency=medium
* scripts/functions:_render_netplan(): Make configure_networking()
more resilient when called by set -e scripts. LP: #1868310.
-- dann frazier <da...@ubuntu.com> Fri, 20 Mar 2020 14:09:47 -0600
** Changed in: initramfs-tools (Ubuntu)
Status: In Progress => Fix Released
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https://bugs.launchpad.net/bugs/1868310
Title:
configure_networking fails if dhcp provides no domain search path
Status in initramfs-tools package in Ubuntu:
Fix Released
Bug description:
configure_networking() always returns an error for me. Using 'set -x',
I observed the following at the end of a test script:
+ for n in $ns_addrs
+ '[' ', ' = '["192.168.122.1", ' ']'
+ continue
+ alist='["192.168.122.1"]'
+ '[' -n '' ']'
+ echo ' nameservers:'
+ echo ' addresses: ["192.168.122.1"]'
+ '[' -n '' ']'
Which corresponds to this line of code in _render_netplan():
[ -n "$slist" ] && echo " search: $slist"
I noticed that my dhcp server (default libvirt net) does not provide a
domain search path, which is triggering this. If I move my VM to a
network w/ a DHCP server that *does* provide this search path, it
continues fine.
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