Live CD Recovery: Update Failure

Update Failure

If there was an update that made your system non-bootable and they have fixed it in the repositories, you can use the Live CD to run apt-get to get the new files to fix your system.

  1. Boot the Ubuntu Live CD.

  2. Press Ctrl-Alt-F1

  3. sudo mount /dev/sda1 /mnt

  4. sudo mount --bind /dev /mnt/dev

  5. sudo mount --bind /proc /mnt/proc

  6. sudo mount --bind /sys /mnt/sys

  7. sudo chroot /mnt

  8. apt update

  9. apt upgrade

If you have trouble accessing your network after chroot, you probably use DHCP and can work around this by adding OpenDNS name servers to your /etc/resolv.conf after you use chroot: 

nameserver 208.67.222.222
nameserver 208.67.220.220

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