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Re: System won't boot anymore after upgrade to jessie

Greg Wooledge wrote:

> Moreover, the simple zcat|cpio -i no longer works with stretch's initrd
> images.  They're in a different format, and you have to use
> lsinitramfs or unmkinitramfs to see or extract their contents.
> On a jessie system, the zcat|cpio -i may still work (not sure about
> backported kernels though).

I just tested it on stretch

file /boot/initrd.img-4.14.12eko4
/boot/initrd.img-4.14.12eko4: gzip compressed data, last modified: Tue Jan 
9 22:45:46 2018, from Unix

$ zcat /boot/initrd.img-4.14.12eko4 | cpio -id
76825 blocks

so if it is gzip format it works perfectly - what format do you mean?

If you look into /usr/bin/unmkinitramfs it is a shell script

but anyway - good hint


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