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→Create compressed image
(*) Note: The cdrom must not be mounted.<br />
(*) Note: The cdrom must not be mounted.<br />
You can check the image with md5sum.
You can check the image with md5sum.
<br />
To see progres:
dd status=progress if=/dev/cdrom of=/tmp/cdimg1.iso
== Create compressed image ==
sudo dd if=/dev/sda conv=sync,noerror bs=64K | gzip -c > /PATH/TO/DRIVE/backup_image.img.gz
== Restore compressed image ==
gunzip -c /PATH/TO/DRIVE/backup_image.img.gz | dd of=/dev/sda