Is there a chance to SRU a targeted patch for LXD in Bionic to fix the issue instead?
-- 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/1959047 Title: systemd ignores RootDirectory option in .service units Status in systemd package in Ubuntu: Confirmed Bug description: The version of systemd (249.5-2ubuntu4) currently packaged for the Ubuntu development version (22.04 Jammy Jellyfish) totally ignores the RootDirectory= option in systemd service files. With RootDirectory, systemd should start the service after calling chroot() on the supplied directory. To test/reproduce, create a test service file with the following contents: # /etc/systemd/system/lsb-release.service [Unit] Description=LSB Release Information [Service] Type=simple RootDirectory=/var/chroot/trusty ExecStartPre=/bin/pwd ExecStart=/usr/bin/lsb_release -a You should have a chroot environment in the specified RootDirectory, even though you can still deduce if systemd attempted to chroot or not from the resulting error message. In my example, I installed an end-of-life Ubuntu 14.04 Trusty Tahr in the chroot environment. On systems NOT affected by the problem, I get the following result when I start this test service. This is what I'd expect. Jan 25 20:40:40 dolly systemd[1]: Starting LSB Release Information... Jan 25 20:40:40 dolly pwd[361]: / Jan 25 20:40:40 dolly systemd[1]: Started LSB Release Information. Jan 25 20:40:40 dolly lsb_release[362]: No LSB modules are available. Jan 25 20:40:40 dolly lsb_release[362]: Distributor ID: Ubuntu Jan 25 20:40:40 dolly lsb_release[362]: Description: Ubuntu 14.04 LTS Jan 25 20:40:40 dolly lsb_release[362]: Release: 14.04 Jan 25 20:40:40 dolly lsb_release[362]: Codename: trusty Jan 25 20:40:40 dolly systemd[1]: lsb-release.service: Succeeded. On the problematic system, however, I get the following result. Jan 25 21:21:08 savelog systemd[1]: Starting LSB Release Information... Jan 25 21:21:08 savelog systemd[1]: Started LSB Release Information. Jan 25 21:21:08 savelog pwd[81114]: / Jan 25 21:21:08 savelog lsb_release[81115]: No LSB modules are available. Jan 25 21:21:08 savelog lsb_release[81115]: Distributor ID: Ubuntu Jan 25 21:21:08 savelog lsb_release[81115]: Description: Ubuntu Jammy Jellyfish (development branch) Jan 25 21:21:08 savelog lsb_release[81115]: Release: 22.04 Jan 25 21:21:08 savelog lsb_release[81115]: Codename: jammy Jan 25 21:21:08 savelog systemd[1]: lsb-release.service: Deactivated successfully. It totally run the service on the host's root filesystem, it didn't care even the slightest that a RootDirectory is specified. Tested on the following releases / systemd versions: Ubuntu 18.04.6 Bionic Beaver – ISSUE NOT PRESENT systemd 237 +PAM +AUDIT +SELINUX +IMA +APPARMOR +SMACK +SYSVINIT +UTMP +LIBCRYPTSETUP +GCRYPT +GNUTLS +ACL +XZ +LZ4 +SECCOMP +BLKID +ELFUTILS +KMOD -IDN2 +IDN -PCRE2 default-hierarchy=hybrid Ubuntu 20.04.3 Focal Fossa – ISSUE NOT PRESENT systemd 245 (245.4-4ubuntu3.15) +PAM +AUDIT +SELINUX +IMA +APPARMOR +SMACK +SYSVINIT +UTMP +LIBCRYPTSETUP +GCRYPT +GNUTLS +ACL +XZ +LZ4 +SECCOMP +BLKID +ELFUTILS +KMOD +IDN2 -IDN +PCRE2 default-hierarchy=hybrid Ubuntu 21.10 Impish Indri – ISSUE NOT PRESENT systemd 248 (248.3-1ubuntu8.2) +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 +BZIP2 +LZ4 +XZ +ZLIB +ZSTD -XKBCOMMON +UTMP +SYSVINIT default-hierarchy=unified Ubuntu 22.04 Jammy Jellyfish (development branch) – ISSUE PRESENT systemd 249 (249.5-2ubuntu4) +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 +BZIP2 +LZ4 +XZ +ZLIB +ZSTD -XKBCOMMON +UTMP +SYSVINIT default-hierarchy=unified Note that the problem is produced under an LXC container; since systemd detects virtualization, it might change how it behaves. It's either a bug or an intentional change I don't understand yet (i.e. the RootDirectory option has deprecated and is about to be replaced with something else, or there are additional conditions to be met before RootDirectory is considered), but I think in the latter case I should at least get a warning that there is a change in configuration. I imagine suddenly everyone's existing service units utilizing RootDirectory silently stop working without any information regarding why. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1959047/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
