Linux Kubuntu How to Recover an Upgraded Non Bootable EFI System
You are Welcome! The Tutorial Shows You Step-by-Step How to Try a Generic Recovery for a Non Bootable EFI Kubuntu 14.04-Trusty/14.10-Utopic/15.04-Vivid i386/amd64 GNU/Linux System After Upgrade.
Take into account that for an Upgraded Kubuntu EFI System Recovery a Grub 2 Bootloader Re-Installation May be Needed.
-
Boot System with a Live Kubuntu Same as Your System
-
Open a Shell Terminal Emulator Window
Alt+Space > Type “kons” > Return
(Press “Enter” to Execute Commands)
-
Possibly to Find the Volume to Fix (LVM or Ordinary Partition)
sudo apt-get install lvm2
So now Execute a Disk Scan to Find out existing Partitions:
lvmdiskscan
In the Output you should be able to Recognize your Device…
-
Chrooting into Kubuntu System.
-
Mounting the Root
sudo su
mount /dev/[sdAX] /mnt/
For Example:
mount /dev/sda2 /mnt/
-
Then Only if Boot is in a Separate Partition: Mounting the Boot
mount /dev/[sdaY] /mnt/boot
-
Mounting Proc,Dev & Sys
mount -t proc none /mnt/proc
mount -o bind /dev /mnt/dev
mount -t devpts none /mnt/dev/pts
mount -o bind /sys /mnt/sys
-
Chrooting
chroot /mnt/ /bin/bash
Testing Network Connection:
ping -c 3 google.com
If No Network Connection then Try:
exit
cp /etc/resolv.conf /mnt/etc/resolv.conf
And then Chroot Again!
chroot /mnt/ /bin/bash
-
-
Updating Apt Repos
apt-get update
-
Fixing potential Unresolved Processes
apt-get -f install
-
Upgrading System Again
apt-get upgrade
apt-get dist-upgrade
-
Reinstalling Grub 2 on Kubuntu EFI Systems
-
Rebooting Kubuntu System
exit
Possibly Eject the Live Kubuntu Media…
reboot now
Tags: Apple, efi, fix Kubuntu efi, gnu, gnu/linux, Guide, How-to, Install, install Kubuntu efi, install Kubuntu mac, Kubuntu, Kubuntu 14.04 Trusty Tahr LTS, Kubuntu 14.10 Utopic Unicorn, Kubuntu 15.04 Vivid Vervet, Kubuntu efi, Kubuntu efi recover, Kubuntu efi repair, Kubuntu linux, Kubuntu mac, Kubuntu recover, Linux, linux efi repair