[linux-lvm] Re: LVM Redhat 7.2 : Volume Group not activated on boot

[Heinz J . Mauelshagen]

On Tue, Feb 12, 2002 at 11:41:54AM -0500, Daniel Savard wrote:
> le lun 11-02-2002 à 19:49, linux-lvm-request at sistina.com a écrit :
> > My problem is on boot of the machine I get a  error from the mount 
> > process that it can not mount and check my file system
> > "/dev/vg01/vg01lv01" and a option to go into singe user mode where I can 
> > se that the "vgchange -a y" is not run to activate
> > the volume group. I have looked at the rc.sysinit and there is this 
> > entry that should activate all defined volume groups.
> > Have any of you out in cyberspace seen the same problem with Redhat 7.2 ?
> > 
> > cut from the /etc/rc.d/rc.sysinit :
> > 
> > # LVM initialization
> > if [ -e /proc/lvm -a -x /sbin/vgchange -a -f /etc/lvmtab ]; then
> >         action $"Setting up Logical Volume Management:" /sbin/vgscan && 
> > /sbin/vgchange -a y
> > fi
> > 
> > My setup :
> > 
> > HP Omnibook 6000 laptop
> > Redhat 7.2
> > I have installed the "new" 2.4.17 Linux kernel
> > VLM support works (That is I can create lv's and I use ext3 file system 
> > on them)
> > I have added my lvm to fstab and are able to mount/umount the file 
> > system without problems
> > 
> > cut from fstab :
> > 
> > /dev/vg01/vg01lv01      /home5/pgram/dev        ext3    defaults        1 2
> > 
> > -- 
> > 
> > /regards
> > 
> > Peter Gram
> > 
> > Phone : +45 2527 7107
> > Fax   : +45 4466 8856
> > 
> > Miracle A/S
> > Kratvej 2
> > 2760 Målev
> > http://miracleas.dk
> > 
> 

Well, point is that /proc/lvm doesn't exist in case you genrated the LVM module
and it didn't get loaded before the check above.
OTOH running vgscan with a correct kmod configuration as you did
loads it automatically.

You could therefore either change the above test by removing the /proc/lvm
check
- or -
make sure the module is loaded (modprobe lvm-mod)
- or -
compile the LVM driver in.

> 
> I added my own entry in the rc.sysinit file after the root filesystem is
> made writable. So, here is my own entry (two lines below # DS ...:
> 
> # The root filesystem is now read-write, so we can now log via syslog()
> directly..
> if [ -n "$IN_INITLOG" ]; then
>     IN_INITLOG=
> fi
> 
> # DS Ok, now scan all volume groups for LVM and activate them
> /sbin/vgscan
> /sbin/vgchange -a y
> 
> if ! grep -iq nomodules /proc/cmdline >/dev/null 2>&1 && [ -f
> /proc/ksyms ]; then
>     USEMODULES=y
> else
>     USEMODULES=
> fi
> 
> It is near line 315 in my rc.sysinit file.
> 
> I also have the initrd image made with lvmcreate_initrd and the
> appropriate entry in the lilo.conf file. I am using kernel 2.4.17 as
> well.
> 
> -- 
> 
> =======================================
> Daniel Savard
> Consultation Informatique Daniel Savard
> 551, boul. Sir-Wilfrid-Laurier
> suite 105
> Beloeil, (Québec)
> Canada J3G 4J1
> 
> Tél: (450) 467-8014
> Internet: dsavard at cids.ca
> =======================================
> 
> 
> 
> _______________________________________________
> linux-lvm mailing list
> linux-lvm at sistina.com
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> read the LVM HOW-TO at http://www.sistina.com/lvm/Pages/howto.html

-- 

Regards,
Heinz    -- The LVM Guy --

*** Software bugs are stupid.
    Nevertheless it needs not so stupid people to solve them ***

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Heinz Mauelshagen                                 Sistina Software Inc.
Senior Consultant/Developer                       Am Sonnenhang 11
                                                  56242 Marienrachdorf
                                                  Germany
Mauelshagen at Sistina.com                           +49 2626 141200
                                                       FAX 924446
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