Is part of the issue here that some (most) initramfs-tools created images have an uncompressed early CPU microcode firmware prefixed ?
That is stored as ASCII CPIO which is why Con see's that reported by 'file' since that tool checks the magic signatures at start of a file. binwalk reveals more detail. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1835660 Title: initramfs unpacking failed To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/initramfs-tools/+bug/1835660/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs