[Bug 1778936] Re: please re-add Support-system-image-read-only-etc.patch
Sergio Cazzolato
1778936 at bugs.launchpad.net
Wed Dec 5 11:39:02 UTC 2018
@xnox
Hello, I validated the fix on core18 but I still see the error trying to
set the hostname
This line is failing:
+ test-snapd-sh.with-hostname-control-plug -c 'hostnamectl set-hostname localhost'
Could not set property: Failed to set static hostname: Read-only file system
I created a branch where I build snapd using systemd from proposed
"systemd (= 237-3ubuntu10.10)", and then I use that snapd fo build the
ubuntu core 18 where I execute the test.
The test which is failing is
https://github.com/snapcore/snapd/blob/master/tests/main/interfaces-
hostname-control/task.yaml.
Thanks
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https://bugs.launchpad.net/bugs/1778936
Title:
please re-add Support-system-image-read-only-etc.patch
Status in systemd package in Ubuntu:
Fix Released
Status in systemd source package in Bionic:
Fix Committed
Status in systemd source package in Cosmic:
Fix Released
Bug description:
[Impact]
* core18 systems fail to update hostname
* this happens due to /etc/hostname actually being a symlink to a file under /etc/writable/, adjust hostnamed to take that into account when trying to update /etc/hostname
[Test Case]
* run a core18 system, check that dhcp acquire hostname is correctly
updated in /etc/writable/hostname
[Regression Potential]
* This is cherrypick of code that has gone missing since xenial.
* There is no change of behaviour for the classic systems.
* Currently, core18 systems simply fail to update hostname/machine-info files, thus the worst case is that they will still fail to do so.
[Other Info]
* original bug report
The 16.04 version of systemd had a patch to support the read-only etc.
For core18 we will also need this change because core18 is still not
on a fully writable etc.
I will attach a debdiff against the current bionic version of systemd.
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