[Bug 1832108] Re: unmkinitramfs fails with lz4 compressed initrds

[Launchpad Bug Tracker]

This bug was fixed in the package initramfs-tools - 0.133ubuntu8

---------------
initramfs-tools (0.133ubuntu8) eoan; urgency=medium

  * Switch back to lz4 by default.
  * Patch unmkinitramfs to cat possible lz4 archives first, as lz4 is
    particular about enforcing .lz4 file extensions when operating on
    files. LP: #1832108

 -- Dimitri John Ledkov <xnox at ubuntu.com>  Mon, 10 Jun 2019 00:21:17
+0100

** Changed in: initramfs-tools (Ubuntu)
       Status: New => Fix Released

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https://bugs.launchpad.net/bugs/1832108

Title:
  unmkinitramfs fails with lz4 compressed initrds

Status in initramfs-tools package in Ubuntu:
  Fix Released

Bug description:
  unmkinitramfs fails with lz4 compressed initrds

  Note:

  $ lz4cat -t unmkinitramfs_Cz6Yl9
  File extension doesn't match expected LZ4_EXTENSION (.lz4); will not process file: unmkinitramfs_Cz6Yl9

  
  And

  $ lsinitramfs /boot/initrd.img
  kernel
  kernel/x86
  kernel/x86/microcode
  kernel/x86/microcode/.enuineIntel.align.0123456789abc
  kernel/x86/microcode/GenuineIntel.bin
  cpio: premature end of archive

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