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mertyildiran
Asked: 2015-03-03 21:07:08 +0800 CST

lzma: initrd.lz: File format not recognized

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I'm using this command to extract initrd.lz archive file:

lzma -dc -S .lz initrd.lz | cpio -id

For ubuntu-14.04-desktop-amd64.iso/casper/initrd.lz this command is working perfect.

But for Elementary OS 0.3 Freya Beta 2

elementaryos-unstable-amd64.20150208/casper/initrd.lz

I'm getting this error:

enter image description here

How can I extract this initrd.lz file?

EDIT:

I tried Lzip:

enter image description here

live-cd

1 Answers

  1. Best Answer

    Use the filecommand to find out the file type:

    $ file initrd.lz 
initrd.lz: gzip compressed data, from Unix, last modified: Sun Feb  8 22:26:04 2015

    So it tells you it's just a gzip file with a strange suffix. Since gunzip refuses to decompress files not having the right suffix, either rename the file or tell it to use a different suffix:

    gunzip --suffix lz initrd.lz
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