Install package via apt from a live cd to the real system

First solution :

• You can install driver needed to boot in recovery. One things to notice : only / is mounted so rememeber that you need to mount other partition such as /usr or /home if needed

• You need to remount the / in read and write mode : mount -o remount,rw /

• You just have to install your package like you're doing in normal mode.

• Packages installed in the recovery mode do persist in the normal mode.

Another way to try

• Boot from CD
• Find your HDD with fdisk -l or lsblk
• Mount it with this command ``mkdir /mnt/hdd && mount /dev/sdx /mnt/hdd

• If you have a separate boot partition mount that too.

  mount -t ext2 /dev/sdx1 /mnt/hdd/boot

• Now in order to have a functional chroot, we have to mount proc, dev and sys subsystems :

  mount -t proc none /mnt/hdd/proc
  mount -o bind /dev /mnt/hdd/dev
  mount -o bind /sys /mnt/hdd/sys
  

• We need to have internet acces :

  cp /etc/resolv.conf  /mnt/hdd/etc/resolv.conf
  

• Use chroot /mnt/hdd /bin/bash to start a chrooted bash

• Install your package via apt
• Try to reboot