01-19-2020, 11:20 AM
(This post was last modified: 01-19-2020, 11:22 AM by Der Geist der Maschine.)
The running system creates files on the fly such as /dev. A backup should not back up such files.
It's better to create the backup from a system booted off micro SD card. From there you can use dd or dd | gzip the emmc card and store it on an external usb drive or scp it over the network.
Before you create the backup, it's advised to first create and then delete a huge file on the emmc card consisting of zeros (dd if=/dev/zero of=zeros) so that gzip can nicely compress the dd'ed image.
It's better to create the backup from a system booted off micro SD card. From there you can use dd or dd | gzip the emmc card and store it on an external usb drive or scp it over the network.
Before you create the backup, it's advised to first create and then delete a huge file on the emmc card consisting of zeros (dd if=/dev/zero of=zeros) so that gzip can nicely compress the dd'ed image.