Home / ubuntu / Questions / 1105722
In Process
brewmanz
Asked: 2018-12-31 16:15:30 +0800 CST

How do I do a customised LVM install of Ubuntu 18.04.1 Desktop LTS?

  • 772

Please can someone tell me how to do a custom LVM install of Ubuntu 18.04.1 LTS Desktop. I have RTFM and it didn't help me. I've hit multiple problems trying to install it:

A) Trying to do a 'default' LVM install does not do what I want

B) Trying to do a cough partial default LVM install by cancelling, and re-starting with a custom LVM install fails as the LVM volumes on the new drive are 'grabbed' by the DVD Ubuntu on reboot and so cannot be changed.

C) Deleting cough the symlinks in /dev/mapper partially started the customised LVM install (I can then delete the LVM partitions), but I couldn't change things; it's like the LVM info is opaque to the installer

D) Booting the DVD, I cannot install either partitionmanager or kvpm ("E: Unable to locate package ...")

Some workable way forward would be really appreciated. I am not familiar with LVM but quite willing to learn.

system-installation partitioning lvm

1 Answers

  1. OK, I did the following:

    • Started (but cancelled) a 'standard LVM' install. This creates a basic LVM on the drive
    • NB If you then reboot your 'Live CD' DVD, I had problems early on with being unable to do anything with the LVM so created. (These problems may be because I was unfamiliar with LVM.)
    • I could see no way to use 'something else' to tweak an LVM install. It would have been helpful for it to give some hints/clues about how to do what I then did ...
    • Used variety of lvremove, vgrename, lvcreate to prepare the LVM as I wanted. BTW this included /(root), /home, /var, /swap.
    • Start install with 'something else' and point various partitions in /dev/mapper(?) as I wanted them in the install. To me, this mapping was not intuitive, as it lists many partitions that are irrelevant, and of the relevant ones half the nearly-duplicated lines can't be selected anyway.

    So I now have Ubuntu 18.04.1 installed.

    • 0