unreliable network connection can cause update-manager to delete whole system

Thanks for your bugreport.

Could you please attach the files in /var/log/dist-ugprade from the bad upgrade? This sounds pretty bad.

Sorry for the delay. gzipped tar of the directory is attached. Let me
know if there's anything else I can add.

Richard

2009/3/5 Michael Vogt <email address hidden>:
> Thanks for your bugreport.
>
> Could you please attach the files in /var/log/dist-ugprade from the bad
> upgrade? This sounds pretty bad.
>
> --
> unreliable network connection can cause update-manager to delete whole system
> https://bugs.launchpad.net/bugs/335154
> You received this bug notification because you are a direct subscriber
> of the bug.
>
>
>

Thanks a lot for the log.

It is a bit mysterious what happend, even with the log. It looks like the u-m thought that it was able to do a update from your mirror, but the Packages files that it got were empty. If you could add the content of /var/lib/apt/lists ads well, that would be most appreciated. I added extra paranoia code to ensure this does not happen anymore to the obsoletes calculation and extra care to the update code. This should hopefully fix the problem. Still, the contents of /var/lib/apt/lists will be helpful to diagnose it further.

Thanks,
 Michael

Hi Michael,

Please find the directory contents attached as tgz.

Any ideas how I might get this disk back towards working? I recall
there's something like/called "debbootstrap", but I'm not sure where
to start.

Thanks,

Richard

2009/3/16 Michael Vogt <email address hidden>:
> Thanks a lot for the log.
>
> It is a bit mysterious what happend, even with the log. It looks like
> the u-m thought that it was able to do a update from your mirror, but
> the Packages files that it got were empty. If you could add the content
> of /var/lib/apt/lists ads well, that would be most appreciated. I added
> extra paranoia code to ensure this does not happen anymore to the
> obsoletes calculation and extra care to the update code. This should
> hopefully fix the problem. Still, the contents of /var/lib/apt/lists
> will be helpful to diagnose it further.
>
> Thanks,
>  Michael
>
> ** Changed in: update-manager (Ubuntu)
>       Status: Incomplete => In Progress
>
> --
> unreliable network connection can cause update-manager to delete whole system
> https://bugs.launchpad.net/bugs/335154
> You received this bug notification because you are a direct subscriber
> of the bug.
>
>
>

Hi Richard,

it looks like the attachment did not made it. Could you please add it again? To get your system back, its probably best if you still have a shell to just "chroot" into it and run "sudo apt-get install ubuntu-destkop". If no shell is available anymore, "debootstrap jaunty /mount/point/of/the/install http://uk.archive.ubuntu.com/ubuntu"

third time lucky: contents of /var/lib/apt/lists recovered from busted machine

This bug was fixed in the package update-manager - 1:0.101.1

---------------
update-manager (1:0.101.1) jaunty; urgency=low

  [ Michael Vogt ]
  * DistUpgrade/DistUpgradeCache.py:
    - catch cache.update() errors that do not raise exceptions
  * DistUpgrade/DistUpgradeController.py:
    - when calculating the obsolete packages, add extra paranoia
      for odd network failures (LP: #335154)
  * DistUpgrade/DistUpgradeAufs.py:
    - do not overlay /var/cache/apt/archives so that the user
      does not have to download the packages twice
    - honor the TMPDIR environment (by using tempfile)
  * DistUpgrade/DistUpgrade.cfg:
    - add powernowd to the forced obsoleted packages (the kernel
      does handle that with the builin ondemand governor now)

  [ Jonathan Riddell ]
  * DistUpgrade/DistUpgrade.cfg:
    - remove gtk-qt-engine in Kubuntu upgrades

 -- Michael Vogt <email address hidden> Wed, 18 Mar 2009 17:57:54 +0100