Ubuntu
initramfs-tools package

Initrd doesn't have proper compress format

Bug #1777045 reported by Jerry Huang
6
This bug affects 1 person
Affects Status Importance Assigned to Milestone
initramfs-tools (Ubuntu)
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Bug Description

It is very similar to the bug https://bugs.launchpad.net/ubuntu/+source/initramfs-tools/+bug/1462788 reported about 3 years ago.

I'm using an up-to-date Xubuntu 18. The system is still bootable. But I couldn't extract initramfs:

root@Chrom-agent:/tmp# file /boot/initrd.img-4.15.0-22-generic
/boot/initrd.img-4.15.0-22-generic: ASCII cpio archive (SVR4 with no CRC)

After removed /usr/share/initramfs-tools/hooks/intel_microcode and regenerated initramfs, the initrd could be recognized by compress utility.

Ubuntu 18.04 LTS
initramfs-tools 0.130ubuntu3

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