loadYOURSELF

Ext3 is a linux filesystem and used by most of the linux systems. This article shows and example ext3 image usage situation.

we will create and use 20MB ext3 image. 1024×20480 bytes.

first we create an empty file with dd block size 1024

dd if=/dev/zero of=disk1.image bs=1024 count=20480


then we format that image

mkfs.ext3 -F -b 1024 disk1.image 20480


this will give an empty filesystem whose type is ext3.

BACKUP DISK

dd if=/dev/sdX | gzip > a.gz

RESTORE BACK

gzip -dc  a.gz | dd of=/dev/sdX

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