I came across this while running 15.04 on a Gryphon Z97 mainboard. I understand what you are saying about the cpio segments, and the initrd seems to be in the correct format, but the kernel isn't recognizing it on boot. So it fails to load the SATA drivers and can't find the root filesystem.
I also noticed that lsinitramfs doesn't show the combined form. If I copy the initrd over to my debian machine running 0.120 it appears to be properly formed. -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to initramfs-tools in Ubuntu. https://bugs.launchpad.net/bugs/1462788 Title: Initrd is not gzip archive Status in initramfs-tools package in Ubuntu: Invalid Bug description: The seems to be an error in the intel_microcode hook for initramfs update. This breaks the initrd: # file /boot/initrd.img-3.19.0-18-generic /boot/initrd.img-3.19.0-18-generic: ASCII cpio archive (SVR4 with no CRC) This is not the expected gzip file. I am not sure now, whether my system is bootable. Edit /usr/share/initramfs-tools/hooks/intel_microcode. Put an "exit" right after the comment header. This will disable the hook and generate a gzipped cpio archive. Xubuntu 15.04 initramfs-tools 0.103ubuntu15 I also checked an AMD-maschine. No Problems with the initrd. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/initramfs-tools/+bug/1462788/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
