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Douglas James Bock
Asked: 2016-05-23 16:27:06 +0800 CST

Reinstalling critical files in Recovery Mode

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I might have accidentaly purged some critical files, causing my Kubuntu 14.04 to not boot past the startup logo.

By entering the recovery mode from a LiveUSB, and running sudo apt-get install -f, I am told that there are some unmet dependencies. So I am guessing those are the files that I purged.

Is there a way of installing all crucial files in recovery mode to get Kubuntu to run smoothly again?

kubuntu

1 Answers

  1. Try this:

    Boot from liveUSB.

    Open a terminal.

    Determine your HDD system partition. 

    exec sudo -i
fdisk -l

    Mount your HDD system partition. X is the drive letter. Y is the partition number. Substitute the correct partition like sda1, sdb5, etc. continue running:

    mount /dev/sdXY /mnt

    Example: mount /dev/sda5 /mnt

    If you have a separate boot partition, mount your boot partition:

    mount /dev/sdXY /mnt/boot

    Example: mount /dev/sdb6 /mnt/boot

    Mount the critical virtual filesystems:

    for i in /dev /dev/pts /proc /sys /run; do mount -B $i /mnt$i; done

    Chroot into your HDD system device:

    chroot /mnt

    Now reinstall kubuntu:

    apt-get update
apt-get install --reinstall kubuntu-desktop
apt-get install -f
apt-get dist-upgrade
exit

    And reboot

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