[Bug 1782854] Re: CRITICAL BUG IN initramfs-tools 0.131ubuntu1: Failed to execute /init (error -13)

[Marko Stanković]

The other computer (main one I'm writing from) got the same message
after update to 0.131ubuntu1, so I booted with the older kernel (4.15),
downgraded initramfs-tools, initramfs-tools-bin and initramfs-tools-core
to 0.130ubuntu10 and successfully rebooted with the new kernel. I saved
the broken and working initrd.img-4.17.0-5-generic images. Please advise
if and where to upload them (27MB each).

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Title:
  CRITICAL BUG IN initramfs-tools 0.131ubuntu1: Failed to execute /init
  (error -13)

Status in initramfs-tools package in Ubuntu:
  New

Bug description:
  I'm running cosmic with proposed enabled (yes, I know...) and just updated initramfs to 0.131ubuntu1
  Upon reboot, I've got the message from summary.
  Then I rebooted into a previous kernel version (4.15) and ran 'update-initramfs -u -k all' and that was stupid because it screwed the old initramfs...
  Comparing new (4.17) and old (not updated 4.15) initramfs images on another computer with Intel Core 2 Duo T9300 (x64), I've got this:
  sm4rk0 at Aspire-5336:~$ cpio -t < /boot/initrd.img-4.17.0-5-generic
  kernel
  kernel/x86
  kernel/x86/microcode
  kernel/x86/microcode/.enuineIntel.align.0123456789abc
  kernel/x86/microcode/GenuineIntel.bin
  98 blocks
  sm4rk0 at Aspire-5336:~$ cpio -t < /boot/initrd.img-4.15.0-23-generic
  .
  kernel
  kernel/x86
  kernel/x86/microcode
  kernel/x86/microcode/AuthenticAMD.bin
  56 blocks

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