hi everyone my keydisk is on a compactflash sandisk ultra 2 card, which was created during disk encryption
doas disklabel sd1 # /dev/rsd1c: type: SCSI disk: SCSI disk label: USB CARD READER duid: ea53e532b5ae2a0f flags: bytes/sector: 512 sectors/track: 63 tracks/cylinder: 255 sectors/cylinder: 16065 cylinders: 31 total sectors: 501760 boundstart: 64 boundend: 498015 drivedata: 0 16 partitions: # size offset fstype [fsize bsize cpg] a: 16001 64 RAID c: 501760 0 unused i boot my laptop (samsung np300e5A) with this connected to a card reader connected to a usb port and i'm able to boot without a problem I HAVE A cruzer memory stick to use as a BACKUP keydisk doas disklabel sd3 # /dev/rsd3c: type: SCSI disk: SCSI disk label: Cruzer Fit duid: 7fe58412fc668f9e flags: bytes/sector: 512 sectors/track: 63 tracks/cylinder: 255 sectors/cylinder: 16065 cylinders: 972 total sectors: 15630336 boundstart: 64 boundend: 15615180 drivedata: 0 16 partitions: # size offset fstype [fsize bsize cpg] a: 16001 64 RAID c: 15630336 0 unused using the backup instruction on the openbsd faq i create an image of the keydisk dd bs=8192 skip=1 if=/dev/rsd1a of=backup-keydisk.img 999+1 records in 999+1 records out 8184320 bytes transferred in 2.251 secs (3634754 bytes/sec) i restore the image to the backup usb memory stick using dd bs=8192 seek=1 if=backup-keydisk.img of=/dev/rsd3a 999+1 records in 999+1 records out 8184320 bytes transferred in 1.744 secs (4690370 bytes/sec) when i try to boot off the backup usb memory stick i get using drive 0 partition 3 no os i tried to verify the keydisk image with diff using doas diff /dev/rsd1a backup-keydisk.img Binary files /dev/rsd1a and backup-keydisk.img differ --- is there a problem with the hardware combination of usb sticks i use for keydisk backup or the commands i use especially the diff command to try and verify the image file ? shadrock
