The device map file /boot/grub/device.map is in this format:
(disk) /dev/device
So, for example, on a system with a floppy and a single SCSI disk, the file would look like this:
(fd0) /dev/fd0
(hd0) /dev/sda
I try to display its content :
cat /boot/grub/device.map
I get this error: No such file or directory
Is it renamed or it is a new hierarchy of Linux system?