Bug 661280
| Summary: | virt-rescue: panic when shutting down: "/sbin/reboot: No such file or directory" | ||
|---|---|---|---|
| Product: | [Community] Virtualization Tools | Reporter: | Richard W.M. Jones <rjones> |
| Component: | libguestfs | Assignee: | Richard W.M. Jones <rjones> |
| Status: | CLOSED UPSTREAM | QA Contact: | |
| Severity: | medium | Docs Contact: | |
| Priority: | low | ||
| Version: | unspecified | CC: | jistone, mbooth, virt-maint |
| Target Milestone: | --- | ||
| Target Release: | --- | ||
| Hardware: | Unspecified | ||
| OS: | Unspecified | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | Bug Fix | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2011-07-13 13:29:08 UTC | Type: | --- |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
Fixed upstream.
virt-rescue now says:
><rescue> exit
virt-rescue: Syncing the disk now before exiting ...
[ 5.408459] md: stopping all md devices.
[ 6.410490] Restarting system.
[ 6.410815] machine restart
This seems to have regressed, using libguestfs-1.10.3-1.fc15.x86_64:
$ virt-rescue /dev/null
[...]
><rescue> exit
virt-rescue: Syncing the disk now before exiting ...
/init: line 125: /sbin/reboot: No such file or directory
[ 2.314040] Kernel panic - not syncing: Attempted to kill init!
[ 2.315094] Pid: 1, comm: init Not tainted 2.6.38.7-30.fc15.x86_64 #1
[ 2.316227] Call Trace:
[ 2.316674] [<ffffffff8146c685>] panic+0x91/0x19c
[ 2.317496] [<ffffffff81058499>] do_exit+0x7c/0x732
[ 2.318403] [<ffffffff81058dd4>] do_group_exit+0x7a/0xa2
[ 2.319378] [<ffffffff81058e13>] __wake_up_parent+0x0/0x28
[ 2.320383] [<ffffffff81009bc2>] system_call_fastpath+0x16/0x1b
[ 2.321518] Rebooting in 1 seconds..virt-rescue: child process died unexpectedly
It may be relevant that on F15, /sbin/reboot is a symlink -> ../bin/systemctl. Neither that symlink nor systemctl appear in the rescue environment.
Setting back to ASSIGNED. I had a brief look at this a while back, but I couldn't work out what magic packages needed to be added to get reboot to work. Note that this warning is entirely harmless. The disk is still synced! I added this patch in 1.11.16: http://git.annexia.org/?p=libguestfs.git;a=commitdiff;h=aa8a9ebf29b7fdc97467e911560a1a7a774e9e1f The output of virt-rescue at exit is now: ----------- virt-rescue: Syncing the disk now before exiting ... Rebooting. [ 3.007450] md: stopping all md devices. [ 4.011515] Restarting system. [ 4.011806] machine restart virt-rescue: child process died unexpectedly ----------- The final message is a different issue. |
Description of problem: When virt-rescue exits, it looks for /sbin/reboot and doesn't find it, causing a panic: ><rescue> exit virt-rescue: Syncing the disk now before exiting ... /init: line 120: /sbin/reboot: No such file or directory [ 67.638939] Kernel panic - not syncing: Attempted to kill init! [ 67.642200] Pid: 1, comm: init Not tainted 2.6.35.9-64.fc14.x86_64 #1 [ 67.643740] Call Trace: [ 67.644221] [<ffffffff81467b09>] panic+0x8b/0x10d [ 67.645085] [<ffffffff810d0dbc>] ? perf_event_exit_task+0x27/0x11e [ 67.645733] [<ffffffff81050e7a>] do_exit+0x7b/0x73d [ 67.646557] [<ffffffff811dc3dd>] ? security_file_permission+0x16/0x18 [ 67.647567] [<ffffffff8146ccd0>] ? do_page_fault+0x238/0x265 [ 67.648410] [<ffffffff810517b6>] do_group_exit+0x7a/0xa2 [ 67.649102] [<ffffffff810517f5>] sys_exit_group+0x17/0x1b [ 67.649672] [<ffffffff81009cf2>] system_call_fastpath+0x16/0x1b This doesn't affect normal operation, but is unsightly. Version-Release number of selected component (if applicable): 1.7.20 How reproducible: Always. Steps to Reproduce: 1. virt-rescue /dev/null 2. At the ><rescue> prompt type 'exit' Actual results: Error messages above. Expected results: Should reboot cleanly. Additional info: