dosfsck -v /dev/sda1   It looks like this will give me the option of:   1) Copy original to backup 2) Copy backup to original 3) No action [123?q]?    But is it safe? I have a backup of the Flash disk... and it is booting fine... I guess I'll try 1   Boot sector contents: System ID "SYSLINUX" Media byte 0xf8 (hard disk)        512 bytes per logical sector      16384 bytes per cluster         32 reserved sectors First FAT starts at byte 16