The archive grep for 12.04 (precise) is done. I see a bunch of (now outdated) documentation wrt. /dev/cgroup, particularly in the kernel sources and in libvirt. ltp also uses it heavily in its test suite. But aside from that there is no maintainer script, installer, or other thing which would create this fstab entry.
archive grep for 10.04 (lucid) is still ongoing, but I don't expect a match there (there's none so far). So I figure this fstab line was added by some third-party package or manually? Note that in the case of nonexisting fstab entries you are supposed to get a friendly-recovery menu or an emergency shell. This doesn't currently happen, which is perhaps the main issue here? This is being tracked in bug 1471258. ** Attachment added: "precise archive grep for /dev/cgroup" https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1460794/+attachment/4425717/+files/cgroup-precise.out -- 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/1460794 Title: boot fails if /dev/cgroup fstab entry is present Status in systemd package in Ubuntu: Confirmed Bug description: I recently upgraded a server from 14.10 to 15.04. The upgrade claim to have worked but the system could not boot afterwards. Basically when you attempt to reboot you end up at an emergency maintenance prompt early in the boot process. After a lot of digging one of the messages in the logs gives: systemd[1]: /usr appears to be on its own filesystem and is not already mounted. This is not a supported setup. Some things will probably break (sometimes even silently) in mysterious ways. Consult http://freedesktop.org/wiki/Software/systemd/separate-usr-is-broken Basically systemd cannot deal with /usr being on a separate partition. That needs to be fixed or systemd should not be used for upgrades with a separate /usr partition. This is related to bug 1460790 but asking for systemd to actually be fixed. Please see bug 1460790 if you are looking for a work around on this issue. ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: systemd 219-7ubuntu5 ProcVersionSignature: Ubuntu 3.19.0-18.18-generic 3.19.6 Uname: Linux 3.19.0-18-generic x86_64 ApportVersion: 2.17.2-0ubuntu1.1 Architecture: amd64 Date: Mon Jun 1 15:29:32 2015 InstallationDate: Installed on 2010-05-23 (1835 days ago) InstallationMedia: Ubuntu-Server 10.04 LTS "Lucid Lynx" - Release amd64 (20100427) MachineType: Supermicro X8STi ProcEnviron: TERM=xterm PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_CA.UTF-8 SHELL=/bin/tcsh ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-18-generic root=UUID=676235cd-93b1-426e-8336-fa0078d96145 ro quiet acpi=off pci=noacpi SourcePackage: systemd UpgradeStatus: Upgraded to vivid on 2015-06-01 (0 days ago) dmi.bios.date: 09/17/10 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 2.0 dmi.board.asset.tag: To Be Filled By O.E.M. dmi.board.name: X8STi dmi.board.vendor: Supermicro dmi.board.version: 1234567890 dmi.chassis.asset.tag: To Be Filled By O.E.M. dmi.chassis.type: 3 dmi.chassis.vendor: Supermicro dmi.chassis.version: 1234567890 dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr2.0:bd09/17/10:svnSupermicro:pnX8STi:pvr1234567890:rvnSupermicro:rnX8STi:rvr1234567890:cvnSupermicro:ct3:cvr1234567890: dmi.product.name: X8STi dmi.product.version: 1234567890 dmi.sys.vendor: Supermicro To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1460794/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
