chroot into a Linux with X window system installed, from a Linux without X window system, and then run xinit, there is no mouse and keyboard working

Question

I have two systems on my machine. One is Ubuntu and the other one is Linux from scratch (LFS) which I built it my self.

Ubuntu has X window system installed but LFS has no windowing system whatsoever.

I chroot from LFS (/dev/sda3) to Ubuntu (/dev/sda1) root partition with following commands:

mkdir /mnt/sda1
mount -v              /dev/sda1    /mnt/sda1
mount -v --bind       /dev         /mnt/sda1/dev
mount -vt devpts      devpts       /mnt/sda1/dev/pts -o gid=5,mode=620
mount -vt proc        proc         /mnt/sda1/proc
mount -vt sysfs       sysfs        /mnt/sda1/sys
mount -vt tmpfs       tmpfs        /mnt/sda1/run
chroot /dev/sda1

Then after chrooting, I ran xinit. X window system started but apparently without detecting mouse.

Currently I'm stuck in X window system and I cannot do anything. When I press ctrl+alt+F1 to F6 or ctrl+alt+backspace nothing happens. To complicate matters further, before I chroot, I was compiling something on another console tty and I don't want to lose that compilation progress with pushing hardware restart button.

Is there a way out of this situation.

Answer 1

Some people have reported you need to bind-mount udev too.