On Tue, Oct 21, 2014 at 06:00:41AM +0800, 積丹尼 Dan Jacobson wrote:
> DESCRIPTION
> The debugfs program is an interactive file system debugger. It can be
> used to examine and change the state of an ext2, ext3, or ext4 file
> system.
> device is the special file corresponding to the device containing the
> file system (e.g /dev/hdXX).
>
> Please mention that device can also be a regular file.
> E.g., a dd(1) copy of a troubled disk to avoid any further damage.
Wow, you're the first person who has noticed this in over a decade.
> This is in contrast to the fsck commands, which insist that we cannot
> try them on regular files for some reason!?!
Um, e2fsck works just fine on regular files
% mke2fs -F -t ext4 /tmp/foo.img 4M
% e2fsck /tmp/foo.img
So does fsck:
% e2fsck /tmp/foo.img
- Ted
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