[Bug 2054719] Re: base-files, glibc lockstep migration blocking bug

[Julian Andres Klode]

** Tags added: block-proposed

-- 
You received this bug notification because you are a member of Ubuntu
Foundations Bugs, which is subscribed to base-files in Ubuntu.
https://bugs.launchpad.net/bugs/2054719

Title:
  base-files, glibc lockstep migration blocking bug

Status in base-files package in Ubuntu:
  New
Status in glibc package in Ubuntu:
  New

Bug description:
  With the new changes I'm uploading, taken from Helmut's patches on
  Debian bug tracker, base-files will own the /lib64 symlink, and /lib64
  in libc6 will move to /usr/lib64.

  Special care has been taken to not break upgrades: You can upgrade the
  two in any order.

  However, debootstrap requires both packages to be at a matching
  version:

  1. If base-files migrates first, the old libc6 would fail to unpack
  2. If glibc migrates first, and is bootstrapped before base-files, we do not end up with the /lib64 symlink at all because debootstrap only *moves* an existing /lib64 (which now is no longer present).

  Since upgrades are fine due to having the symlink already, we do not
  want to solve this by introducing dependencies: We could have added
  mutual Depends or Breaks, but they would have required temporarily
  deconfiguring one of the packages to unpack the other on upgrades.

  Hence we'll mark this bug as block-proposed and remove the tag once
  both are ready to land.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/base-files/+bug/2054719/+subscriptions