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Re: [linux-lvm] can't find volumes



"Heinz J . Mauelshagen" <mauelshagen sistina com> wrote ..
> 
> Mark,
> 
> that's probably the missing /proc in your chroot environment.
> 

It is ?
Before chrooting, I do (mind you, this is from a livecd environment)

vgscan 
vgchange -ay

mount /dev/lv/ide /mnt/gentoo
mount /dev/hde7 /mnt/gentoo/boot
mount -t proc proc /mnt/gentoo/proc

chroot /mnt/gentoo /bin/bash

(where /mnt/gentoo is the root of the to be installed linux system)
If that isn't the right thing to do, then how do I do it right ?

Many thanx already, hope I can get some more help.

best regards
Mark

<--- previous mail follows from on here --->

"Heinz J . Mauelshagen" <mauelshagen sistina com> wrote ..
> 
> On Thu, Jun 26, 2003 at 12:12:24PM +0200, lvm ruby ridersoft net wrote:
> > Hi, I come seeking sage advice :)
> > 
> > Anyways, I've been busy installing a new Linux system using Gentoo. I
> am running this on a spare box, Duron 800 w 300mb, with the harddisk connected
> to the Promise ATA 100 onboard controller as /dev/hde8.
> > 
> > Al goes well, and I create the following partitions
> > 
> > /dev/hde6      swap
> > /dev/hde7      ext3 fs     /boot
> > /dev/hde8      lvm
> > 
> > I also create the pv on /dev/hde8 and a logical volume at /dev/lv/ide
> > 
> > /dev/lv/ide is my /
> > 
> > >From my running livecd I then chroot'ed into /dev/lv/ide, and then the
> troubles began. When I run vgscan when chroot'ed it doesn't find any volume
> groups. When I run vgchange, i claims that the VDGA record doesn't match
> the kernel, and urges me to run vgscan, running vgscan doesn't solve this
> problem since it doesn't find the volume groups.
> > 
> > ls -l /dev/lv/ide shows me that my volume group indeed doesn't excist.
> However, the mount command shows me that /dev/lv/ide is mounted at root.
> So in summary, I can't find the volumegroup, even tough I am working on/in
> it.
> > 
> > I decided to go ahead anyways, and created a initrd using lvmcreate_initrd
> (based on the kernel i made, 2.4.21 ) it does this, and when I boot it
> loads this initrd as it is supposed to. It neatly finds my /dev/hda and
> /dev/hdb cdroms, and once insmod'ed it also find /dev/hde, but the it runs
> vgscan and finds no volumegroups, that causes vgchange to not find anything
> either. That causes the kernel to panic, since it cannot find root.
> > 
> > Weird thing is, if I boot with any other rescue/livecd, such as SuSE
> rescue, knoppix or gentoo live cd, I can vgscan and vgchange -ay to find
> my volume group and logical volume. But once chroot'ed or booting to my
> new system, I cannot and will not find it.
> > 
> > Does anyone have any suggestions on why vgscan doesn't find anything
> and how to solve this ?
> > 
> > Many thanx in advance, I have been strugling with this one for almost
> a week now, and I am out of options. I have been able to install lvm as
> root on quite a few systems before, including a LFS system, but right now,
> I am stumped.
> > 
> > best regards
> > Mark
> > 
> > 
> > When I boot from a livecd image, such as 
> 
> 
> -- 
> 
> Regards,
> Heinz    -- The LVM Guy --
> 
> *** Software bugs are stupid.
>     Nevertheless it needs not so stupid people to solve them ***
> 
> =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
> 
> Heinz Mauelshagen                                 Sistina Software Inc.
> Senior Consultant/Developer                       Am Sonnenhang 11
>                                                   56242 Marienrachdorf
>                                                   Germany
> Mauelshagen Sistina com                           +49 2626 141200
>                                                        FAX 924446
> =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
> 
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