The device map file /boot/grub/device.map is in this format:
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 :
I get this error:
No such file or directory
Is it renamed or it is a new hierarchy of Linux system?