[Bug 1792564] Re: new version of shim refuses to chainload windows in dualboot

[Steve Langasek]

** Tags added: regression-update

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Title:
  new version of shim refuses to chainload windows in dualboot

Status in shim-signed package in Ubuntu:
  New

Bug description:
  package: shim-signed, shim

  release:  Ubuntu 18.04.1 LTS

  version: shim-signed:amd64 1.37~18.04.1+15+1533136590.3beb971-0ubuntu1
   shim:amd64 15+1533136590.3beb971-0ubuntu1

  expected: grub menu loading xubuntu and windows in dualboot

  happened: loading xubuntu works, loading windows failes (no error - black screen - no hard disc light flashing)
  I uninstalled shim, shim-signed, disabled 'bionic-updates' and installed old versions 
  shim-signed:amd64 1.34.9.2+13-0ubuntu2
  shim:amd64 13-0ubuntu2
  and boot works well like before.

  I enabled 'bionic-updates' and installed the newer versions without
  error and again chainloading of windows fails.

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