Tested on a pristine UC24 built with a custom `core24` base that uses
noble-proposed instead of noble-updates, and ran the same sequence of
commands (updating locale, rebooting, ensuring it was the same)
$ systemctl --version
systemd 255 (255.4-1ubuntu8.6)
+PAM +AUDIT +SELINUX +APPARMOR +IMA +SMACK +SECCOMP +GCRYPT -GNUTLS +OPENSSL
+ACL +BLKID +CURL +ELFUTILS +FIDO2 +IDN2 -IDN +IPTC +KMOD +LIBCRYPTSETUP
+LIBFDISK +PCRE2 -PWQUALITY +P11KIT +QRENCODE +TPM2 +BZIP2 +LZ4 +XZ +ZLIB +ZSTD
-BPF_FRAMEWORK -XKBCOMMON +UTMP +SYSVINIT default-hierarchy=unified
$ localectl status
System Locale: LANG=C.UTF-8
VC Keymap: (unset)
X11 Layout: (unset)
$ sudo localectl set-locale LANG=en_AU.UTF-8
$ localectl status
System Locale: LANG=en_AU.UTF-8
VC Keymap: (unset)
X11 Layout: (unset)
$ cat /etc/locale.conf
LANG=en_AU.UTF-8
$ sudo reboot
$ localectl status
System Locale: LANG=en_AU.UTF-8
VC Keymap: (unset)
X11 Layout: (unset)
Things are looking good!
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You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to systemd in Ubuntu.
https://bugs.launchpad.net/bugs/2091657
Title:
systemd-localed requires read-only-etc hacks for /etc/vconsole.conf
and /etc/locale.conf
Status in systemd package in Ubuntu:
Invalid
Status in systemd source package in Noble:
Fix Committed
Bug description:
[Impact]
Ubuntu Core has a read-only /etc, but a writable partition in
/etc/writable. In some versions of Ubuntu, the systemd package ships a
patch to follow symlinks from /etc/ -> /etc/writable, e.g. for files
like /etc/locale.conf.
In Core24, this patch needs to be expanded for /etc/locale.conf and
/etc/vconsole.conf in systemd-localed.
[Test Plan]
1. On a pristine Ubuntu Core system, run "localectl status". Verify
that the system locale is set to the default (seems to be "C.UTF-8"
based on the current core24 snap).
2. Modify the system locale by running "localectl set-locale
LANG=en_AU.UTF-8". The command should complete without error.
3. Check that the locale has changed by running "localectl status".
4. Check that the locale has been saved to /etc/locale.conf
5. Reboot the system, and run "localectl status" again to check that
the change has persisted.
[Where problems could occur]
This hack is designed to be a no-op in non-Ubuntu Core cases. I.e.,
when /etc/writable does not exist or does not have a link for the
given path in etc, the original path is used.
As is evident by the ever-expanding nature of this patch, this is not
a complete solution. It's possible that more cases will be found where
this hack needs to be applied.
[Other information]
This patch is not carried in supported releases newer than Noble.
While this patch is far from ideal, expanding this hack has become the
go-to for existing stable releases.
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/2091657/+subscriptions
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