將 chroot 自動化到損壞的系統中

每次您必須使用 live-boot-CD 掛載系統並chroot進入系統來修復 grub 時，您必須鍵入這麼多行才能掛載到正確的分區：

fdisk -l

例如，找到正確的分區/dev/sda1

mount /dev/sda1 /mnt/
mount -t proc none /mnt/proc
mount -o bind /dev /mnt/dev
mount -t sysfs sys /mnt/sys
chroot /mnt/

有沒有辦法用一個腳本來優化它？

將此腳本複製mount-root到您的 USB 設備上

#!/bin/bash
if [ "$(whoami &2>/dev/null)" != "root" ] && [ "$(id -un &2>/dev/null)" != "root" ] ; then
echo "You must be root to run this script!"; echo "use 'sudo !!'"; exit 1
fi


if [ $# -ne 2 ]; then
echo "calling this script with only two options with the device and mountpoint"
echo "for example"
echo "mount-root /dev/sda1 /media/other/"
set -x
fdisk -l
lsblk -f
exit
fi

D=$(echo $1 | sed 's:/$::')
M=$(echo $2 | sed 's:/$::')

echo mounting $D to $M

mkdir -p $M

mount $D $M
mount -t proc none $M/proc
mount -o bind /dev $M/dev
mount -t sysfs sys $M/sys
mount --bind /dev/pts $M/dev/pts
cp /proc/mounts $M/etc/mtab
chroot $M/ /bin/bash

來源：https ://gist.github.com/rubo77/eac3313ea5302acfca60

引用自：https://unix.stackexchange.com/questions/157102