best way to backup USB stick (2)
So I got a script that backs up the USB stick to a file and restores a
(larger) USB stick from that file all using dd. It is here:
the relevant parts are the backup:
dd conv=notrunc,noerror bs=4096 if=$usbDrive | gzip > $backupFilename
and the restore:
gzip -dc $backupFilename | dd of=$usbDrive
Makes perfect copy AFAICT, but it does not boot and the original USB
stick does. Completes w/o errors.
Can any dd expert tell me what I am doing wrong?