9.10 Server install: place 'root' on manually created LVM?

[bryces]

Hi,

I'm just trying to install Ubuntu server 9.10 to a logical volume manager partition.
I have two physical disks of 250GB - each has a 10GB primary partition and 240GB logical partition for LVM

I created partions using 'manual partitioning'.
It shows:

LVM VG grpA 240GB
LVM VG grpB 240GB

SCSI1 (sda) 250GB
#5 logical 240GB K lvm
#1 primary 10GB F ext2 /boot
SCSI2 (sdb0 250GB
#1 primary 10GB F swap swap
#5 logical 240GB K lvm

I want '/' (i.e root) to be on a logical volume in the lvm 'grpA' (on disk sda).

But the installer does not offer creation of Logical Volumes or their format - only seems to go as low as volume group. If I try continuing installer complains that 'no root file system is defined'.

Does anyone know how I create the LV and install with root there?

(On another machine with 9.04 I used the guided partitioning with use entire disk and lvm - that just worked putting root in the lvm... but this current machine needs a specific layout).

Thanks,
Bryce Stenberg.

[Herman]

Hard Drive Encryption in My Ubuntu Installation (http://kuparinen.org/martti/comp/ubuntu/en/cryptolvm.html) - Martti Kuparinen

I think the information you want can be found in the web page linked above, or at least you might get enough clues from it to help you figure it out.

[bryces]

thanks Herman.

I followed through the description but my install does not allow this step "After creating the LVs I had three new entries in the disk partitioner (picture 17). I set the file system type for each so that the "root" LV is ext3 mounted on /, the "swap" LV is swap and the "home" LV is ext3 mounted on /home". There is no way that I can see to configure the file system for the LV's - if I pick a LV with the aim of specifying file system I'm told no modifications can be made as it is a member of LVM group, so I can get picture 17 but can't get to the picture 18 setup. I can't see anyway to achieve my goal from in the manual partitioner.

The article does mention it used the 'alternate install CD" but I can't find that for server edition - possibly it's installer is a bit different?

Maybe I'll try booting a live CD and see if I can make changes to LVM file systems from there...

Regards, Bryce.

[bryces]

Further to my last reply - I dropped to command line and formatted my logical volumes to ext3.

But I still can't continue with install due to the 'no root file system is defined' error. Is there a command to run or file to edit that can tell the installer to now put the root file system on /dev/sda5 (the logical volume I just formatted) since it isn't handled by the installer?

Regards, Bryce.

[bryces]

I went and had a harder poke at everything and finally found it - - the line it was done from I just thought was some informational text - turned out to be modifiable. In case anyone else ever runs into this, the option was under the LVM grouping at top (above list of disks) - the first line in the next page, I think it said something about not in use, can be changed to set everything needed. Thanks for all the help.

-bryce.