Datasheet

“main” (Installation and Administration) — 2004/6/25 — 13:29 — page 212 — #238
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Editing Menu Entries during the Boot Procedure
From the graphical boot menu of GRUB, use the arrow keys to select the
operating system to boot. If you select a Linux system, you can add boot
parameters. After pressing




Esc and exiting the splash screen, press




E to
edit individual menu entries directly. Changes made in this way only apply
to the current boot procedure and are not adopted permanently.
Note
Keyboard Layout during the Boot Procedure
The US keyboard layout is the only one available at boot time.
Note
After enabling the editing mode, use the arrow keys to navigate to the en-
try to change. To make the selected item editable, press




E again. Adjust
the entry as desired. Leave the editing mode with




Enter and go back to the
menu, where the changed entry can be booted by pressing




E .
In the lower part of the screen, GRUB displays further options.
8.4.2 The File device.map
The file device.map maps GRUB device names to Linux device names.
This is only relevant when running the GRUB shell as a Linux program
(command grub). For this purpose, the program reads the file device.
map. See Section 8.4.4 on page 214 for more information.
GRUB does not have access to the boot sequence information in the BIOS.
If your system contains both IDE and SCSI hard disks, GRUB must try to
determine the boot sequence by means of a special procedure. It saves the
results of this check to the file /boot/grub/device.map. For a system
that boots IDE devices before SCSI devices, the file device.map could ap-
pear as follows:
(fd0) /dev/fd0
(hd0) /dev/hda
(hd1) /dev/hdb
(hd2) /dev/sda
(hd3) /dev/sdb
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8.4. Booting with GRUB