[SoaS] add dd command use to backup a USB stick to .img file in floss manual section on backing up

Thomas C Gilliard satellit at bendbroadband.com
Wed Feb 3 08:17:26 EST 2010


David;

Here is a Backup Method that works for USB/SD sticks:
(can you add this to Floss Manual as a backup method)

do this outside of sugar:
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How to backup an installed live USB via a .img file

dd if=/dev/sdg of=xxxxxx.img

NOTE IN ROOT (#)

# dd if=/dev/sdg of=xxxxxx.img *
7856127+0 records in
7856127+0 records out
4022337024 bytes (4.0 GB) copied, 180.628 s, 22.3 MB/s

(4GB USB imaged)

to write .img file to USB:
dd if=xxxxxx.img of=/dev/sdg bs=4M

p# dd if=xxxxxx.img of=/dev/sdg bs=4M  *
958+1 records in
958+1 records out
4022337024 bytes (4.0 GB) copied, 399.829 s, 10.1 MB/s

* be sure this is your USB: (/dev/sdg)!

bs=4M speeds up writes to USB
(Block size writes match USB File structure per cyberorg on #sugar on IRC)
-------------------------------------------------

This works,

 .img file can be stored on CD or burned to 2nd USB and stored off site.

Great fast backup

Tom Gilliard
satellit


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