On Fri, May 15, 2015 at 08:26:42AM +0100, Ian Campbell wrote:
Here's an idea. First extract the real initrd from the back half of the initrd: ijc@dagon:tmp$ cat /boot/initrd.img | ( cpio -t >&2 ; cat ) > initrd.real kernel kernel/x86 kernel/x86/microcode kernel/x86/microcode/GenuineIntel.bin 16 blocks ijc@dagon:tmp$ file initrd.real initrd.real: gzip compressed data, last modified: Sun Apr 19 16:31:17 2015, from Unix ijc@dagon:tmp$ zcat initrd.real | cpio -t | head -n 5 . etc etc/ld.so.conf.d etc/ld.so.conf.d/fakeroot-x86_64-linux-gnu.conf etc/ld.so.conf.d/x86_64-linux-gnu.confNow you can experiment with regenerating the ucode bit with whatever commands are recommended and reconcatenating the two. If that works then we know there is some incompatibility between iucode-tools's output and Xen's cpio reader (could be a bug in either or both I think).
All right. Can you please provide some commands how to create and reconcatenate the two initrds? I don’t have any experience with cpio.
Shade and sweet water!
Stephan
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