解决backtrack BT5 R3 Linux 不能进到桌面的问题

实验环境：笔记本；BT5R3-GNOME-64.iso；win7;GRUB

grub.cfg文件的启动配置改成如下：删掉 quiet splash vga=791 

### BEGIN /etc/grub.d/10_linux ###
menuentry 'Ubuntu, with Linux 3.2.6' --class ubuntu --class gnu-linux --class gnu --class os {
	recordfail
	insmod ext2
	set root='(hd0,9)'
	search --no-floppy --fs-uuid --set b2da3632-30b6-43e0-8b5f-ec1f9810e2fd
	linux	/boot/vmlinuz-3.2.6 root=UUID=b2da3632-30b6-43e0-8b5f-ec1f9810e2fd ro  
	initrd	/boot/initrd.img-3.2.6
}

#
# 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 $prefix/grubenv ]; then
  load_env
fi
set default="0"
if [ ${prev_saved_entry} ]; then
  set saved_entry=${prev_saved_entry}
  save_env saved_entry
  set prev_saved_entry=
  save_env prev_saved_entry
  set boot_once=true
fi

function savedefault {
  if [ -z ${boot_once} ]; then
    saved_entry=${chosen}
    save_env saved_entry
  fi
}

function recordfail {
  set recordfail=1
  if [ -n ${have_grubenv} ]; then if [ -z ${boot_once} ]; then save_env recordfail; fi; fi
}
insmod ext2
set root='(hd0,9)'
search --no-floppy --fs-uuid --set b2da3632-30b6-43e0-8b5f-ec1f9810e2fd
if loadfont /usr/share/grub/unicode.pf2 ; then
  set gfxmode=1024x768
  set gfxpayload=keep
  insmod gfxterm
  insmod vbe
  if terminal_output gfxterm ; then true ; else
    # For backward compatibility with versions of terminal.mod that don't
    # understand terminal_output
    terminal gfxterm
  fi
fi
insmod ext2
set root='(hd0,9)'
search --no-floppy --fs-uuid --set b2da3632-30b6-43e0-8b5f-ec1f9810e2fd
set locale_dir=($root)/boot/grub/locale
set lang=en
insmod gettext
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/light-gray
### END /etc/grub.d/05_debian_theme ###

### BEGIN /etc/grub.d/10_linux ###
menuentry 'Ubuntu, with Linux 3.2.6' --class ubuntu --class gnu-linux --class gnu --class os {
	recordfail
	insmod ext2
	set root='(hd0,9)'
	search --no-floppy --fs-uuid --set b2da3632-30b6-43e0-8b5f-ec1f9810e2fd
	linux	/boot/vmlinuz-3.2.6 root=UUID=b2da3632-30b6-43e0-8b5f-ec1f9810e2fd ro  
	initrd	/boot/initrd.img-3.2.6
}
menuentry 'Ubuntu, with Linux 3.2.6 (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os {
	recordfail
	insmod ext2
	set root='(hd0,9)'
	search --no-floppy --fs-uuid --set b2da3632-30b6-43e0-8b5f-ec1f9810e2fd
	echo	'Loading Linux 3.2.6 ...'
	linux	/boot/vmlinuz-3.2.6 root=UUID=b2da3632-30b6-43e0-8b5f-ec1f9810e2fd ro single 
	echo	'Loading initial ramdisk ...'
	initrd	/boot/initrd.img-3.2.6
}
### END /etc/grub.d/10_linux ###

### BEGIN /etc/grub.d/20_memtest86+ ###
menuentry "Memory test (memtest86+)" {
	insmod ext2
	set root='(hd0,9)'
	search --no-floppy --fs-uuid --set b2da3632-30b6-43e0-8b5f-ec1f9810e2fd
	linux16	/boot/memtest86+.bin
}
menuentry "Memory test (memtest86+, serial console 115200)" {
	insmod ext2
	set root='(hd0,9)'
	search --no-floppy --fs-uuid --set b2da3632-30b6-43e0-8b5f-ec1f9810e2fd
	linux16	/boot/memtest86+.bin console=ttyS0,115200n8
}
### END /etc/grub.d/20_memtest86+ ###

### BEGIN /etc/grub.d/30_os-prober ###
menuentry "Windows 7 (loader) (on /dev/sda1)" {
	insmod ntfs
	set root='(hd0,1)'
	search --no-floppy --fs-uuid --set 7620C36220C32847
	chainloader +1
}
menuentry "Ubuntu, with Linux 3.2.6 (on /dev/sda8)" {
	insmod ext2
	set root='(hd0,8)'
	search --no-floppy --fs-uuid --set da8fb0d5-7932-42fb-b9bf-716f6435c1c0
	linux /boot/vmlinuz-3.2.6 root=UUID=da8fb0d5-7932-42fb-b9bf-716f6435c1c0 ro text splash vga=791
	initrd /boot/initrd.img-3.2.6
}
menuentry "Ubuntu, with Linux 3.2.6 (recovery mode) (on /dev/sda8)" {
	insmod ext2
	set root='(hd0,8)'
	search --no-floppy --fs-uuid --set da8fb0d5-7932-42fb-b9bf-716f6435c1c0
	linux /boot/vmlinuz-3.2.6 root=UUID=da8fb0d5-7932-42fb-b9bf-716f6435c1c0 ro single
	initrd /boot/initrd.img-3.2.6
}
### 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.
### END /etc/grub.d/40_custom ###