Can Emacs be used to browse a cpio archive?

I've tried to open a cpio file in Emacs in Ubuntu 15.04 (Vivid), but it simply shows me its content as is, not allowing to browse it as a directory of files.

(Actually, I wanted to browse the initrd.img, which is a compressed cpio archive.)

1 Answer 1


Probably, a cpio-mode is not yet among the standard set of modes. Cf.:

dated as follows:

From:   Stefan Monnier
Subject:    Re: Proposal: cpio-mode
Date:   Thu, 16 Apr 2015 16:42:45 -0400

Stefan also suggests some code there:

PS: For what it's worth, here's my earlier attempt at such a thing.

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