[Bug 1086548] [NEW] libc-bin/libc6 inverted deps causes nss to fail and can make dpkg-statoverride explode, killing the upgrade

[James Troup]

Public bug reported:

I've just had a lucid -> precise upgrade explode in my face.  libc-bin
was installed before libc6 and as a result, there was a period where
nss was broken, after libc-bin had been upgraded, but before libc6
had.  nss being broken caused dpkg-statoverride to explode on almost
any use (because there was a override that used a group provided by
NSS, not in /etc/group).  dpkg-statoverride failing caused the libc6
install to fail and subsequently do-release-upgrade also.  I've
attached the dist-upgrade logs from the failed run.

** Affects: update-manager (Ubuntu)
     Importance: Undecided
         Status: New

** Attachment added: "failed dist-upgrade log"
   https://bugs.launchpad.net/bugs/1086548/+attachment/3451728/+files/20121204-1820.tar.gz

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https://bugs.launchpad.net/bugs/1086548

Title:
  libc-bin/libc6 inverted deps causes nss to fail and can make dpkg-
  statoverride explode, killing the upgrade

Status in “update-manager” package in Ubuntu:
  New

Bug description:
  I've just had a lucid -> precise upgrade explode in my face.  libc-bin
  was installed before libc6 and as a result, there was a period where
  nss was broken, after libc-bin had been upgraded, but before libc6
  had.  nss being broken caused dpkg-statoverride to explode on almost
  any use (because there was a override that used a group provided by
  NSS, not in /etc/group).  dpkg-statoverride failing caused the libc6
  install to fail and subsequently do-release-upgrade also.  I've
  attached the dist-upgrade logs from the failed run.

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