Kali Linux GRUB2引导修复

Kali Linux GRUB2引导修复

2016-10-27

我的Github主页

觉得kali的grub主题看着不舒服，我就总要给grub换个主题，因为GRUB2有这个功能嘛。昨天，更新了电脑，发现我的主题不见了，变成了一个好丑的界面，就在那儿改啊改，发现没有用，一气之下，把GRUB卸载了，连同跟GRUB相关的几个文件夹一起move to trash了，想着重装之后重新生成。可是并没能生成，这下GG了，配置文件又没有备份，配置好的电脑，又不想重装系统，只得想办法咯

话不多说，直奔主题

必要条件：

/etc/default/grub（以下是默认的）

# If you change this file, run 'update-grub' afterwards to update
# /boot/grub/grub.cfg.
# For full documentation of the options in this file, see:
#   info -f grub -n 'Simple configuration'

GRUB_DEFAULT=0
GRUB_TIMEOUT=5
GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian`
GRUB_CMDLINE_LINUX_DEFAULT="quiet"
GRUB_CMDLINE_LINUX="initrd=/install/initrd.gz"

# Uncomment to enable BadRAM filtering, modify to suit your needs
# This works with Linux (no patch required) and with any kernel that obtains
# the memory map information from GRUB (GNU Mach, kernel of FreeBSD ...)
#GRUB_BADRAM="0x01234567,0xfefefefe,0x89abcdef,0xefefefef"

# Uncomment to disable graphical terminal (grub-pc only)
#GRUB_TERMINAL=console

# The resolution used on graphical terminal
# note that you can use only modes which your graphic card supports via VBE
# you can see them in real GRUB with the command `vbeinfo'
#GRUB_GFXMODE=640x480

# Uncomment if you don't want GRUB to pass "root=UUID=xxx" parameter to Linux
#GRUB_DISABLE_LINUX_UUID=true

# Uncomment to disable generation of recovery mode menu entries
#GRUB_DISABLE_RECOVERY="true"

# Uncomment to get a beep at grub start
#GRUB_INIT_TUNE="480 440 1"

2./etc/grub.d/（默认）

1. 00_header
2. 05_debian_theme
3. 10_linux
4. 20_linux_xen
5. 30_os-prober
6. 30_uefi-firmware
7. 40_custom
8. 41_custom

使用kali安装盘启动救援模式

打开终端，默认即为root然后依次输入并执行以下命令

注：sda1为所在kali分区，先挂载原系统

mount /dev/sda1 /mnt/
mount --bind /dev /mnt/dev/
mount --bind /dev/pts /mnt/dev/pts
mount --bind /proc /mnt/proc
mount --bind /sys /mnt/sys

转至原系统根目录

chroot /mnt/

安装grub并刷新，如果有，则不用装

grub-install /dev/sda

更新grub.cfg，并退至启动盘根目录

update-grub
exit

解除挂载

# umount /mnt/dev/pts
# umount /mnt/dev
# umount /mnt/proc
# umount /mnt/sys
# umount /mnt

重启电脑即可

# reboot