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Bug 17807 - EVMS does not work with LVM's when used on the LiveCD
Summary: EVMS does not work with LVM's when used on the LiveCD
Status: RESOLVED FIXED
Alias: None
Product: Gentoo Release Media
Classification: Unclassified
Component: Everything (show other bugs)
Hardware: x86 Linux
: High major (vote)
Assignee: Bob Johnson (RETIRED)
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2003-03-19 03:00 UTC by Mike Javorski
Modified: 2003-04-05 13:55 UTC (History)
1 user (show)

See Also:
Package list:
Runtime testing required: ---


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Description Mike Javorski 2003-03-19 03:00:24 UTC
For just about every release of 1.4 so far I have been able to create a EVMS LVM
structure on the machine before installing (I run a complete EVMS LVM partition
scheme save for /boot and swap)

In rc3, EVMS either does not load at all, or when it loads it doesn't work per
spec. (i.e. the volumes that are created are lost, or just don't show up in
devfs). Rebooting after "creating" volumes in evmsn results in evms modules not
loading at all, and when forced (through the /etc/init.d/evms loader or via
modprobe's) it still does not detect the volumes created.

Reproducible: Always
Steps to Reproduce:
1. Boot from the rc3 live CD
2. attempt to create a LVM structure in EVMS
3. Save EVMS settings on exit

Actual Results:  
No LVM devices are created in the devfs

Expected Results:  
Created the LVM devices

I would suggest adding compiled-in EVMS support to the liveCD. This should work
reliably, I think it has to do with EVMS not being "sane" while running as a
module..

Even an option like "boot: evms" would be great
Comment 1 Stuart Bouyer 2003-04-04 07:00:47 UTC
Try 'modprobe dos_part', then 'evms_rediscover' before you start evmsn.
For some reason the livecd loads the gpt_part module instead of the dos_part module during the hardware detection stage.

It may also be necessary to 'modprobe -r gpt_part' to get it too work. 

Unless I load dos_part module, evms on the livecd won't recognise any of my existing lvm partitions or create new ones.

Hope this helps you out 

StuBear
Comment 2 Bob Johnson (RETIRED) gentoo-dev 2003-04-04 12:27:35 UTC
Im not had luck getting info on what it takes to get evms working. 
Ill try making this change on the cd. 
Comment 3 Bob Johnson (RETIRED) gentoo-dev 2003-04-05 13:55:08 UTC
finally.. i made these changes, livecd evms works now. 
thanks.