[dm-devel] kpartx -l side effects

[Mikulas Patocka]

On Thu, 12 Jan 2012, Pádraig Brady wrote:

> I was playing around with kpartx on 2.6.40.4-5.fc15.x86_64 and did:
> kpartx -l /bin/ls
> Now I get "text file busy" when trying to run ls.
> How does one undo that?
>
> cheers,
> Pádraig.

Run losetup -a, you find that one of loopback devices is assigned to 
/bin/ls (for example /dev/loop0). Then, run losetup -d /dev/loop0 to 
remove that block device. Then, you can use /bin/ls again.

Mikulas