> cgroup /dev/cgroup cgroup defaults 0 0
Erk -- that's what broke the boot after all? Indeed, this was in comment
4 already, but I missed that. So the journal should have a
complaint/timeout on that, as /dev/cgroup is a thing of the distant past
(google still has a few hits). Thanks for finding!
I'm going to poke around in 10.04's and 12.04's packages to see which
one would possibly have added that fstab line.
** Summary changed:
- systemd does not boot with a separate /usr partition
+ boot fails on missing /dev/cgroup fstab entry
** Changed in: systemd (Ubuntu)
Status: Incomplete => Confirmed
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https://bugs.launchpad.net/bugs/1460794
Title:
boot fails on missing /dev/cgroup fstab entry
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
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