Hi, hlyg wrote: > i have copied trixie CD image to 32GB usb stick > and created additional partition to use remaining space on usb stick > checksum of live CD fails even after i delete partition i created > is it possible to fix or restore so that checksum is OK after creating then > deleting new partition?
The neat way would be to restore the bytes of the Live ISO to their original state. In the simplest case that would be copying the ISO image freshly to the USB stick. A less invasive fix would be to find out where the changes sit in the range of the ISO and to only restore those changed bytes. First suspect would be the partition table block(s). Which blocks are part of the table depends on the table type. With a MBR/DOS partition table and ionly primary partitions it would only be the first block of the USB stick. But with GPT it would be more blocks near the start. But maybe it wasn't only your partition table manipulations which changed bytes in the ISO, but also boot firmware or other operating systems which felt entitled to put files into the EFI System Partition of the USB stick. See for example: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1056998 In this case your USB stick ISO will change checksums again as soon as you allow the manipulating systems access to it. Have a nice day :) Thomas
