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crysis405
Asked: 2014-11-12 13:30:08 +0800 CST

Setting up LVM and deleting partition volume

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I am running Ubuntu 14.04 LTS in VMware. I recently ran out of space so I decided to add a 10GB volume. The problem is I didn't install ubuntu with lvm initially so now I am trying to do it retrospectivly. I have tried https://github.com/g2p/blocks but for some reason I wasn't able to install it on the liveCD.

Now I went back to follow this guide: https://help.ubuntu.com/community/SettingUpLVM-WithoutACleanInstall

I have lvm2 installed along with fdisk and GParted. But along the way I messed something up and now I have /dev/sda3 which I can't delete:

GParted error:

GParted 0.18.0 --enable-libparted-dmraid --enable-online-resize

Libparted 2.3
Delete /dev/sda3 (lvm2 pv, 1023.00 KiB) from /dev/sda  00:00:00    ( ERROR )

calibrate /dev/sda3  00:00:00    ( SUCCESS )

path: /dev/sda3
start: 39845888
end: 39847933
size: 2046 (1023.00 KiB)
delete lvm2 pv file system  00:00:00    ( ERROR )

lvm pvremove /dev/sda3

Physical Volume /dev/sda3 not found

========================================

Gparted

First I would like to somehow get rid of this volume. I create a 100MB lvm2 pv volume just as the guide said, but I don't understand how to get the OS files onto it or even what the point of it is as later on the guide tells you to create ~10gb partitions for your usr folders etc. I'm a little lost and I wish I could just do a clean install.

Edit:

When I do: sudo fdisk /dev/sda3 I get: You must set cylinders.

Edit2:

I managed to delete /dev/sda3 using the following command: dd if=/dev/zero of=/dev/sda3 bs=1M count=2 and then deleting it using GParted

Now I just need a way to expand /dev/sda1 into the unallocated space

Edit3:

Managed to solve it now, just by playing around with GParted.

14.04

2 Answers

  1. Best Answer

    You don't need lvm for this. Blow away sda3 and and sda4 to get back to your old setup, and just move sda2 to the right ( unmount sda5 first ), then you can grow sda1 into the unallocated space.

    • 0

  2. See if you have any logical volume in this physical volume. Try 'sudo lvdisplay'. If yes, remove any logical volume and then try to use 'vgreduce -a' to remove any empty physical volume in the volume group.

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