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Old 10-09-2006, 08:15 AM   #1
Registered: Aug 2006
Distribution: Ubuntu
Posts: 87

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backup for linux system in CF


I am newbee in linux. i am working on a project about embedded linux system booting from 512 MB CF card. From the manufacturer, we receive a basic emb linux system in the CF crad, how can i make a backup of it? and how to restore it back? i canr ead the card also as it is mounted to my laptop. i use opensuse 10.1

Old 10-10-2006, 05:35 PM   #2
Registered: Jun 2004
Posts: 307

Rep: Reputation: 42
Your CF card, ideally, will be seen as a scsi device.

You can make an image backup of it easily.

For example if the device for your CF is /dev/sdb

# cp /dev/sdb image-sdb-cf.img

You can overwrite the whole drive then doing the reverse:

# cp image-sdb-cf.img /dev/sdb
Old 10-23-2006, 06:10 AM   #3
Registered: Aug 2006
Distribution: Ubuntu
Posts: 87

Original Poster
Rep: Reputation: 15
Hello all,

i have problem while restoring the backup. so i used the command:
dd if=/dev/sdb1 of=backupcf.img
for backuping the CF content.

then i played a little while with the CF, using fdisk and mke2fs commands. after that when i used the command:
dd if=backupcf.img of=/dev/sdb1
it worked fine for dd command ecxecution, but then if i mount the cf card, and try to do ls command:
#mount -t auto /dev/sdb1 /mnt/ls
#ls -l/mnt/cf
/bin/ls: reading directory /mnt/cf: /Input/output error
what happened actually? how to get my old files back?



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