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40 lines
968 B
Bash
Executable file
40 lines
968 B
Bash
Executable file
#!/bin/sh
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# Ensure we run as root
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if [ "$EUID" -ne 0 ]; then
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echo "Must be ran as root"
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exit 1
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fi
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# Take chroot user as 1st argument, default to root
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if [ $# -ge 1 ]; then
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USERNAME="$1"
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else
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USERNAME="root"
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fi
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MOUNT_POINT="/mnt/arch"
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# Make sure the partition is mounted according to fstab
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mount "$MOUNT_POINT" 2> /dev/null
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# Mount necessary directories for chroot to be possible
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mount --types proc /proc "$MOUNT_POINT/proc"
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mount --rbind /sys "$MOUNT_POINT/sys"
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mount --make-rslave "$MOUNT_POINT/sys"
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mount --rbind /dev "$MOUNT_POINT/dev"
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mount --make-rslave "$MOUNT_POINT/dev"
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# Use /bin/su for chrooting with --login to also run
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# /etc/profile and ~/.profile or ~/.zprofile
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chroot "$MOUNT_POINT" "/bin/su" "$USERNAME" --login
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# Unmount recursively mounted directories
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umount -l "$MOUNT_POINT/dev"
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umount -l "$MOUNT_POINT/sys"
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umount -l "$MOUNT_POINT/proc"
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umount -R "$MOUNT_POINT"
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# Remount partition according to fstab
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mount "$MOUNT_POINT"
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