[Bug 1871240] Re: Can't upgrade to Focal on WSL1 due to libc6 postinst

[Launchpad Bug Tracker]

*** This bug is a duplicate of bug 1871129 ***
    https://bugs.launchpad.net/bugs/1871129

This bug was fixed in the package glibc - 2.31-0ubuntu11

---------------
glibc (2.31-0ubuntu11) groovy; urgency=medium

  [ Michael Hudson-Doyle ]
  * Mark tst-getpw as XFAIL on arm64. (LP: #1869364)

  [ Balint Reczey ]
  * debian/control: Add Vcs-* pointing to Ubuntu packaging repository
  * debian/gbp.conf: Add initial configuration
  * debian/debhelper.in/libc.preinst: Fix setting LDCONFIG_NOTRIGGER
  * debian/control.in/main: Add Vcs-* pointing to Ubuntu packaging repository
  * Fall back to calling nanosleep syscall when __clock_nanosleep returns EINVAL
    (LP: #1871240)
  * debian/testsuite-xfail-debian.mk: XFAIL stdlib/tst-strtod-round on riscv64
  * debian/testsuite-xfail-debian.mk: XFAIL tst-getpw on armhf, too
  * debian/watch: Use HTTPS and download xz-compressed tarball
  * debian/watch: Use upstream's signing key to verify the tarball
  * XFAIL stdlib/tst-getrandom (LP: #1891403)

  [ Dimitri John Ledkov ]
  * debian/patches/powerpc: Cherrypick upstream patches to support POWER10
    optimized library loading. (LP: #1887989)

  [ Aurelien Jarno ]
  * debian/patches/any/submitted-selinux-deprecations.diff: proposed patch to
    ignore the selinux deprecations introduced in libselinux (>= 3.1), fixing
    an FTBFS. (Closes: #965941)

 -- Balint Reczey <rbalint at ubuntu.com>  Thu, 27 Aug 2020 23:36:39 +0200

** Changed in: glibc (Ubuntu)
       Status: Invalid => Fix Released

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https://bugs.launchpad.net/bugs/1871240

Title:
  Can't upgrade to Focal on WSL1 due to libc6 postinst

Status in Ubuntu WSL:
  In Progress
Status in glibc package in Ubuntu:
  Fix Released

Bug description:
  When trying to upgrade from Eoan to Focal in a WSL1 environment I got:

  "
  rafaeldtinoco at lenovo:~$ sudo apt-get -f install
  Reading package lists... Done
  Building dependency tree
  Reading state information... Done
  Correcting dependencies... Done
  The following additional packages will be installed:
    console-setup keyboard-configuration libc-bin libc6-dbg
  The following packages will be upgraded:
    console-setup keyboard-configuration libc-bin libc6-dbg
  4 upgraded, 0 newly installed, 0 to remove and 915 not upgraded.
  15 not fully installed or removed.
  Need to get 0 B/6,599 kB of archives.
  After this operation, 2,348 kB disk space will be freed.
  Do you want to continue? [Y/n] y
  Preconfiguring packages ...
  libkmod: ERROR ../libkmod/libkmod-module.c:1657 kmod_module_new_from_loaded: could not open /proc/modules: No such file or directory
  Error: could not get list of modules: No such file or directory
  Setting up libc6:amd64 (2.31-0ubuntu7) ...
  Checking for services that may need to be restarted...
  Checking init scripts...
  Nothing to restart.
  sleep: cannot read realtime clock: Invalid argument
  dpkg: error processing package libc6:amd64 (--configure):
   installed libc6:amd64 package post-installation script subprocess returned error exit status 1
  Errors were encountered while processing:
   libc6:amd64
  E: Sub-process /usr/bin/dpkg returned an error code (1) 
  "

  And I could only mitigate that by editing:

  /var/lib/dpkg/info/libc6\:amd64.postinst

  and commented the line

  # set -e

  so $ apt-get -f install

  could continue.

  That happens because wsl does not have ubuntu kernel and directory
  structure is different.

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