GRUB Memo
LU_YI_MING (_AT_) sina.com2004.9
GRUB is a good thing! I often use something to write down and I can't think of it.
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Drive letter
Hard disk: (HD0), (HD1) floppy disk: (FD0) CD: Unknown USB disk: unknown
Hard disk partition
(HD0, 1), (HD0, 6)
file path
(HD0, 1) /BOOT/grub/splash.xpm.gz (HD0, 6) /BOOT /GRUB/grub.conf
Find files
Find /Boot/grub/grub.conf
Display file content
Cat (HD0, 6) /BOOT /GRUB/grub.conf
Tips: Display the startup menu, display / etc / fstab file content
Set the current default hard disk partition
Root (HD0, 6)
This root and linux root "/" is not a matter of setting, other commands can save the partition path (HD0, 6)
Restore (installation) GRUB
Root (hd ..) Setup (HD0) Setup (HD0, 6)
LINUX is started: GRUB-INSTALL / DEV / HDA
Read a kernel file into memory
KERNEL (hd ..) / boot / ... Ro root = ...
Read Linux's RAM disk into memory
INITD (hd ..) / boot / ..
Start an operating system that has been read into memory
Boot
Launch a Linux
Root (hd ..) kernel / boot / vmliuz ... Ro root ... initrd / boot / initrd ... boot
Tips: Use this method to install other Linux downloaded to the hard disk
Install a grub on the floppy disk
No in GRUB
LINUX startup: # mke2fs / dev / fd0 # mount -t ext2 / dev / fd0 / mnt # grub-install --root-directory = / mnt FD0 # umount / mnt
Display graphics graphics capability
Vbeprobe
Test graphics card graphics support
Test 0x151 test 792
Note: After the test, the dead machine needs to be restarted.
Replacement background picture
SplashImage (hd ..) / boot / grub / ... xpm.gz
Tips
Tab key: command or file fill in complete
Up and down direction keys: repeat command
ESC button: Exit, return to menu interface
Command help
Help Help root
Compilation support background picture
Http://ruslug.rutgers.edu/~mcgrof/grub-images/
Debian is good!
Making background picture
Design a 640 * 480 graphic file with GIMP, draw something, save it to .XPM file Test.xpm Set color number is 14: Menu: Image -> Mode -> Indexed Gzip Test.xpm, get test.xpm.gz
