Ubuntu – Unable to automatically remove LVM data

installationlvmpartitionUbuntuubuntu-12.04

I am trying to install ubuntu 12.04 via preceed config onto Dell PowerEdge R710. I had RedHat installed on the box then I tried installing ubuntu 12.04, then auto install popping with Unable to automatically remove LVM data message.

Complete Message: Because the volume groups on the selected device also consist of physical volumes on other devices. it is not considered safe to remove its lvm data automatically. If you wish to use this device for paritioning, please remove its lvm data first.

couple of blogs suggested to use this preceed option

d-i partman-lvm/device_remove_lvm_span boolean true

But no use, I still get the same message.

Also one more question: Ubuntu preceed auto install on dell servers showing first disk as /dev/sdc not /dev/sda. Any idea.

Appreciate for your answer.

Best Answer

This is what helped me to have in my zesty.preseed to automatically reinstall machines with ubuntu that had centos on them:

d-i partman/early_command string lvremove --select all -ff -y; vgremove --select all -ff -y; pvremove /dev/sd* -ff -y

Related Solutions

Lvm – How to resize a regular (non-LVM) partition

In theory, you could reduce the size of sda1, increase the size of the extended partition, shift the contents of the extended partition down, then increase the size of the PV on the extended partition and you'd have the extra room. However, the number of possible things that can go wrong there is just astronomical, so I'd recommend either buying a second hard drive (and possibly transferring everything onto it in a more sensible layout, then repartitioning your current drive better) or just making some bind mounts of various bits and pieces out of /home into / to free up a bit more space.

Lvm – Linux Software RAID1: How to boot after (physically) removing /dev/sda? (LVM, mdadm, Grub2)

You need to install GRUB to the MBR of both drives, and you need to do it in a way that GRUB considers each disk to be the first disk in the system.

GRUB uses its own enumeration for disks, which is abstracted from what the Linux kernel presents. You can change which device it thinks is the first disk (hd0), by using a "device" line in the grub shell, like so:

device (hd0) /dev/sdb

This tells grub that, for all subsequent commands, treat /dev/sdb as the disk hd0. From here you can complete the installation manually:

device (hd0) /dev/sdb
root (hd0,0)
setup (hd0)

This sets up GRUB on the first partition of the disk it considers to be hd0, which you've just set as /dev/sdb.

I do the same for both /dev/sda and /dev/sdb, just to be sure.

Edited to add: I always found the Gentoo Wiki handy, until I did this often enough to commit it to memory.

Best Answer

Related Solutions

Lvm – How to resize a regular (non-LVM) partition

Lvm – Linux Software RAID1: How to boot after (physically) removing /dev/sda? (LVM, mdadm, Grub2)

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