[Top][All Lists]

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Destroyed Entries at /dev/sda - boot not possible anymore

From: Stefan Lamby
Subject: Destroyed Entries at /dev/sda - boot not possible anymore
Date: Mon, 30 Mar 2015 11:30:52 +0200 (CEST)

Hello list.
I wanted to install kubuntu 14.04 on a USB-Stick which was mounted as /dev/sdbX
at my productive laptop which uses /dev/sdaX. I choosed all options regarding to
/dev/sdb but after install my laptop was not able to boot anymore since all data
at the beginning of /dev/sda seems to be overwritten. I need to recover and make
it boot again.
The laptop (new dell 64 bit) is also running a kubuntu 14.04.02 system.
The setup is:
I have a luks encrypted disk which I am able to encrypt using
cryptsetup open /dev/sda3 kubuntu-vg
On top of it is lvm2 sitting, which I am able to activate using
vgchange -ay
One volume group kubuntu-vg is displayed and I have 2 logical volumes
(kubuntu-vg-root and kubuntu-vg-swap_1). I can mount it via
mount /dev/mapper/kubuntu--vg-root /mnt/
When I look at /mnt/boot, I have 2 dirs there: efi and grub

When using fdisk -l I get folling partition layout:
/dev/sda1 2048 1050623 512M EFI System
/dev/sda2 1050624 1550335 244M Linux filesystem
/dev/sda3 1550335 1953523711 930.8G Linux filesystem

I am afraid of breaking things more. Also I do not know, how everything is
Are the first sectors of /dev/sda just a pointer to the rest of the booting code
which resides at
Please help.
What can I do? What further information could be helpfull?

reply via email to

[Prev in Thread] Current Thread [Next in Thread]