unmkinitramfs (8) Linux Manual Page
unmkinitramfs – extract content from an initramfs image
Synopsis
unmkinitramfs [-v] initramfs-file directory
unmkinitramfs -h
Description
The unmkinitramfs command extracts the content of a given initramfs image using cpio. If the image contains multiple segments, each are passed to cpio in order.
Options
- -h
- Display usage information and exit.
- -v
- Display verbose messages about extraction.
Usage Examples
Extract initramfs content of current running kernel:
unmkinitramfs /boot/initrd.img-$(uname -r) initramfs/
Bugs
unmkinitramfs cannot deal with multiple-segmented initramfs images, except where an early (uncompressed) initramfs with system firmware is prepended to the regular compressed initramfs.
Author
The initramfs-tools are written by Maximilian Attems <maks [at] debian.org> and numerous others.
See Also
initramfs-tools(7), lsinitramfs(8), mkinitramfs(8), update-initramfs(8).