代码： 全选
ST 120
/dev/sda1 * 1 3917 31463271 7 HPFS/NTFS ---->sys
/dev/sda2 3918 19457 124825050 f W95 Ext'd (LBA)
/dev/sda5 3918 19457 124825018+ 7 HPFS/NTFS ---->data
WD 160
/dev/sdb1 * 1 1567 12586896 83 Linux ---->ubuntu
/dev/sdb2 1568 14593 104631345 f W95 Ext'd (LBA)
/dev/sdb5 1568 14593 104631313+ 7 HPFS/NTFS ---->bakfile
然后接上ST硬盘，WD则变为第二硬盘，我研究grub2时试着sudo grub update后，发现生成的grub.cfg有些问题，如下，我已经手动删除了30_*内的自动添加项：
代码： 全选
#
# DO NOT EDIT THIS FILE
#
# It is automatically generated by /usr/sbin/grub-mkconfig using templates
# from /etc/grub.d and settings from /etc/default/grub
#
### BEGIN /etc/grub.d/00_header ###
if [ -s /boot/grub/grubenv ]; then
have_grubenv=true
load_env
fi
set default="0"
if [ ${prev_saved_entry} ]; then
saved_entry=${prev_saved_entry}
save_env saved_entry
prev_saved_entry=
save_env prev_saved_entry
fi
if [ ${recordfail} = 1 ]; then
set timeout=-1
else
set timeout=10
fi
### END /etc/grub.d/00_header ###
### BEGIN /etc/grub.d/05_debian_theme ###
set menu_color_normal=white/black
set menu_color_highlight=black/white
### END /etc/grub.d/05_debian_theme ###
### BEGIN /etc/grub.d/10_linux ###
menuentry "Ubuntu, Linux 2.6.31-14-generic" {
recordfail=1
if [ -n ${have_grubenv} ]; then save_env recordfail; fi
set quiet=1
linux /boot/vmlinuz-2.6.31-14-generic root=/dev/sdb1 ro quiet splash
initrd /boot/initrd.img-2.6.31-14-generic
}
menuentry "Ubuntu, Linux 2.6.31-14-generic (recovery mode)" {
recordfail=1
if [ -n ${have_grubenv} ]; then save_env recordfail; fi
linux /boot/vmlinuz-2.6.31-14-generic root=/dev/sdb1 ro single
initrd /boot/initrd.img-2.6.31-14-generic
}
### END /etc/grub.d/10_linux ###
### BEGIN /etc/grub.d/20_memtest86+ ###
menuentry "Memory test (memtest86+)" {
linux16 /boot/memtest86+.bin
}
menuentry "Memory test (memtest86+, serial console 115200)" {
linux16 /boot/memtest86+.bin console=ttyS0,115200n8
}
### END /etc/grub.d/20_memtest86+ ###
### BEGIN /etc/grub.d/30_os-prober ###
### END /etc/grub.d/30_os-prober ###
### BEGIN /etc/grub.d/40_custom ###
# This file provides an easy way to add custom menu entries. Simply type the
# menu entries you want to add after this comment. Be careful not to change
# the 'exec tail' line above.
menuentry "Windows 7 (on /dev/sda1)" {
insmod ntfs
set root=(hd0,1)
search --no-floppy --fs-uuid --set 300052c300528fa8
chainloader +1
}
menuentry "Grub4Dos (on /dev/sda5)"{
set root=(hd0,5)
linux /BOOT/Grub/grub.exe
}
### END /etc/grub.d/40_custom ###
GRUB_DISABLE_LINUX_UUID=false
也没用，而且那个GRUB_GFXMODE=640x480分辨率改了也无效，
故在此求单独全新安装到MBR的grub.cfg原文件
另外，我在ST硬盘上从grub4dos引导grub2时发现，ubuntu盘/boot/grub/下根本就没有core.img这个文件
