[tbb-bugs] #21838 [Applications/Tor Browser]: Gitian VM creation fails on Ubuntu 16.x machines in the unmount step

Tor Bug Tracker & Wiki blackhole at torproject.org
Mon May 8 17:31:46 UTC 2017


#21838: Gitian VM creation fails on Ubuntu 16.x machines in the unmount step
--------------------------------------+--------------------------
 Reporter:  gk                        |          Owner:  tbb-team
     Type:  defect                    |         Status:  new
 Priority:  Medium                    |      Milestone:
Component:  Applications/Tor Browser  |        Version:
 Severity:  Normal                    |     Resolution:
 Keywords:  tbb-gitian                |  Actual Points:
Parent ID:                            |         Points:
 Reviewer:                            |        Sponsor:
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Comment (by boklm):

 I am able to reproduce this error in an Ubuntu 16.10 VM. It seems to be
 caused by `/usr/sbin/update-grub` returning a error when run inside the
 wheezy chroot, and then the cleanup after this error not unmounting things
 in the right order.

 I have not been able to find why update-grub is failing when we are using
 Ubuntu 16.10. The logs only say this:
 {{{
 2017-05-05 13:51:00,774 DEBUG   : ['chroot', '/tmp/tmpdGQM2s', '/usr/sbin
 /update-grub', '-y']
 2017-05-05 13:51:00,779 INFO    : Searching for GRUB installation
 directory ... found: /boot/grub
 2017-05-05 13:51:00,886 INFO    : Probing devices to guess BIOS drives.
 This may take a long time.
 }}}

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/21838#comment:2>
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