Device file listed by fdisk doesn't exist

[Nils Kassube]

Volker Wysk wrote:
> I have an image file of an USB stick. It contains a regular MBR and
> one partition, not just the partition.
> 
> I've set up a loop device, like this (*.img part is the image file):
> 
> losetup -f "2020-01-09 Wartung 1804.img"
> 
> This creates the new loop device /dev/loop23.
> 
> Now I wonder how to access the partition inside. I can access the MBR
> inside /dev/loop23:
> 
> -----snip-----
> desktop ~ % fdisk --list /dev/loop23
> Festplatte /dev/loop23: 14,3 GiB, 15376318464 Bytes, 30031872
> Sektoren
> Einheiten: Sektoren von 1 * 512 = 512 Bytes
> Sektorgröße (logisch/physikalisch): 512 Bytes / 512 Bytes
> E/A-Größe (minimal/optimal): 512 Bytes / 512 Bytes
> Festplattenbezeichnungstyp: dos
> Festplattenbezeichner: 0x807b71ab
> 
> Gerät         Boot Anfang     Ende Sektoren Größe Kn Typ
> /dev/loop23p1 *      2048 30031871 30029824 14,3G 83 Linux

The losetup part isn't necessary ...

file="2020-01-09 Wartung 1804.img"
fdisk -l "$file"
sudo mount -oloop,offset=$((2048*512)) "$file" /mnt

should suffice.

Nils