Re: Festplatten sichern

[Sven Hartge <sven@svenhartge.de>]

Ingo Juergensmann <ij@2008.bluespice.org> wrote:

> Sicherlich kommt man an irgendwie an die einzelnen Partitionen in so
> einem Image ran, aber bei meinem Test letztens hatte das nicht
> straight-forward geklappt. 

man kpartx

-rw-r--r--  1 root root 16777216  7. Okt 18:22 testdisk.img

root@rechner:/tmp# fdisk -l testdisk.img 
You must set cylinders.
You can do this from the extra functions menu.

Disk testdisk.img: 0 MB, 0 bytes
255 heads, 63 sectors/track, 0 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x47385ee4

       Device Boot      Start         End      Blocks   Id  System
testdisk.img1               1           1        8001   83  Linux
testdisk.img2               2           2        8032+   5  Extended
testdisk.img5               2           2        8001   83  Linux

root@rechner:/tmp# losetup -f testdisk.img 
root@rechner:/tmp# losetup -a 
/dev/loop0: [0900]:423551 (testdisk.img)

root@rechner:/tmp# kpartx -v -a /dev/loop0
add map loop0p1 (253:4): 0 16002 linear /dev/loop0 63
add map loop0p2 (253:5): 0 16065 linear /dev/loop0 16065
add map loop0p5 (253:6): 0 16002 253:5 63

root@rechner:/tmp# ls -al /dev/mapper/loop0*
brw-rw---- 1 root disk 253, 4  7. Okt 18:27 /dev/mapper/loop0p1
brw-rw---- 1 root disk 253, 5  7. Okt 18:27 /dev/mapper/loop0p2
brw-rw---- 1 root disk 253, 6  7. Okt 18:27 /dev/mapper/loop0p5

root@rechner:/tmp# mke2fs -v /dev/mapper/loop0p5
mke2fs 1.41.2 (02-Oct-2008)
fs_types for mke2fs.conf resolution: 'ext2', 'small'
Filesystem label=
OS type: Linux
Block size=1024 (log=0)
Fragment size=1024 (log=0)
2000 inodes, 8000 blocks
400 blocks (5.00%) reserved for the super user
First data block=1
Maximum filesystem blocks=8388608
1 block group
8192 blocks per group, 8192 fragments per group
2000 inodes per group

Writing inode tables: done                            
Writing superblocks and filesystem accounting information: done

This filesystem will be automatically checked every 29 mounts or
180 days, whichever comes first.  Use tune2fs -c or -i to override.

root@rechner:/tmp# mount /dev/mapper/loop0p5 /mnt/tmp/

root@rechner:/tmp# df
Filesystem           1K-blocks      Used Available Use% Mounted on
/dev/mapper/loop0p5       7745        45      7300   1% /mnt/tmp


S°

-- 
Sig lost. Core dumped.