Status changed to 'Confirmed' because the bug affects multiple users.

** Changed in: debirf (Ubuntu)
       Status: New => Confirmed

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  cpio in Busybox 1.27 ingnores "unsafe links"

Status in busybox package in Ubuntu:
Status in debirf package in Ubuntu:

Bug description:
  Description:    Ubuntu Bionic Beaver (development branch)
  Release:        18.04

    Installed: 1:1.27.2-2ubuntu3
    Candidate: 1:1.27.2-2ubuntu3

  3) Expected my CPIO archive to be fully extracted with proper symlinks
  Command: unxz < /rootfs.cxz | cpio -i

  4) 'Unsafe' symlinks were ignored such as:

  sbin/init -> /lib/systemd/systemd

  With the broken 1.27 sbin/init does not get created at all and my
  debirf initrd fails to load/boot properly.

  1.22 from Xenial works.
  GNU Cpio also works.

  It looks like 1.28 adds an env var to override this behavior:

  libarchive: do not extract unsafe symlinks unless

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