Linux command
grub-mkdevicemap 命令
安全
权限或系统影响较大，执行前请核对目标。
常用示例
Generate device map
sudo grub-mkdevicemap
Specify output file
sudo grub-mkdevicemap -m /boot/grub/device.map
Verbose output
sudo grub-mkdevicemap -v
说明
grub-mkdevicemap creates a device map file for GRUB that maps BIOS drive numbers to Linux device names. The device map helps GRUB understand disk ordering. The map is automatically generated but can be customized for special configurations where disk ordering needs to be explicitly controlled.
参数
- -m, --device-map _FILE_
- Output device map file.
- -n, --no-floppy
- Skip floppy detection.
- -v, --verbose
- Verbose mode.
- --help
- Display help information.
FAQ
What is the grub-mkdevicemap command used for?
grub-mkdevicemap creates a device map file for GRUB that maps BIOS drive numbers to Linux device names. The device map helps GRUB understand disk ordering. The map is automatically generated but can be customized for special configurations where disk ordering needs to be explicitly controlled.
How do I run a basic grub-mkdevicemap example?
Run `sudo grub-mkdevicemap` in a terminal, then adjust file names, paths, flags, or remote targets for your system.
What does -m, --device-map _FILE_ do in grub-mkdevicemap?
Output device map file.