[Bug 1771294] Re: Bionic upgrade failed with bash_4.4.18-2ubuntu1_amd64.deb error

[Balint Reczey]

Could you please check your Windows Build number?
According to Microsoft and to my test it is fixed in latest builds, starting with 17046. I verified the fix on 17134.

You can get the build number even in Ubuntu's terminal :-) :

$ systeminfo.exe | grep '^OS Version'
OS Version:                10.0.17134 N/A Build 17134


** Project changed: wsl => windows

-- 
You received this bug notification because you are a member of Ubuntu
Foundations Bugs, which is subscribed to update-manager-core in Ubuntu.
https://bugs.launchpad.net/bugs/1771294

Title:
  Bionic upgrade failed with bash_4.4.18-2ubuntu1_amd64.deb error

Status in Windows Network OS:
  Unknown
Status in update-manager-core package in Ubuntu:
  Confirmed

Bug description:
  Hi,

  In a fresh installed Linux Subsystem(Ubuntu Bionic) of Win 10, apt upgrade got this error in bash pre-installation script...
  Could anybody please confirm and check the issue? Thanks!

  Preparing to unpack .../bash_4.4.18-2ubuntu1_amd64.deb ...
  bash.preinst: cannot run dpkg-query: Invalid argument....................................................................................................................................................................................]
  dpkg: error processing archive /var/cache/apt/archives/bash_4.4.18-2ubuntu1_amd64.deb (--unpack):
   new bash package pre-installation script subprocess returned error exit status 1
  update-alternatives: using /usr/share/man/man7/bash-builtins.7.gz to provide /usr/share/man/man7/builtins.7.gz (builtins.7.gz) in auto mode
  Errors were encountered while processing:
   /var/cache/apt/archives/bash_4.4.18-2ubuntu1_amd64.deb
  E: Sub-process /usr/bin/dpkg returned an error code (1)

To manage notifications about this bug go to:
https://bugs.launchpad.net/windows/+bug/1771294/+subscriptions