I was using it to build a U18 debirf image when I saw this issue. I can generate one in a bit for you.
-- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to busybox in Ubuntu. https://bugs.launchpad.net/bugs/1753572 Title: cpio in Busybox 1.27 ingnores "unsafe links" Status in busybox package in Ubuntu: Fix Released Status in debirf package in Ubuntu: Confirmed Status in busybox source package in Bionic: In Progress Status in debirf source package in Bionic: Confirmed Status in busybox source package in Cosmic: Fix Released Status in debirf source package in Cosmic: Confirmed Bug description: Description: Ubuntu Bionic Beaver (development branch) Release: 18.04 busybox: 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 $EXTRACT_UNSAFE_SYMLINKS=1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/busybox/+bug/1753572/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : firstname.lastname@example.org Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp