lvm2

[Terrence Bradshaw]

Yes. I briefly ranted about this earlier right after 4.0 was released to 
YDL.net enhanced accounts.

The device mapper module has never been included in the 4.0 distribution 
(as far as i can tell).  I would imagine that Owen might be able to shed 
more light on the back end story of lvm and yellowdog.

I have not done any work on solving the problem but I would guess you 
could build the module from kernel source or roll a brand new kernel for 
yourself. I am very much interested in getting a solution to this; I just 
have not had the time to try anything yet.



On Tue, 7 Dec 2004, Paul Eden wrote:

> Is anyone else having trouble with lvm2 on yellowdog 4.0?
> 
> I am running:
> 
> lvm2-2.00.15-2
> device-mapper-1.00.14-3
> kernel-2.6.8-1.ydl.7
> initscripts-7.48-1.ydl.2
> 
> When I run lvm2 commands I get the following error:
> 
>   /dev/mapper/control: open failed: No such file or directory
>   Is device-mapper driver missing from kernel?
> 
> And the volume group and logical volumes devices under /dev aren't
> created even after reboot.
> 
> Is dm-mod missing from the kernel?  
> 
> Here are lines 377 through 388 of /etc/rc.d/rc.sysinit
> 
> # LVM2 initialization
> if [ -d /etc/lvm/ -a -x /sbin/lvm ]; then
>     if ! LC_ALL=C fgrep -q "device-mapper" /proc/devices 2>/dev/null ;
> then
>         modprobe dm-mod >/dev/null 2>&1
>     fi
>     /bin/rm -f /dev/mapper/control
>     echo "mkdmnod" | /sbin/nash --quiet >/dev/null 2>&1
>     [ -n "$SELINUX" ] && restorecon /dev/mapper/control
>     if [ -e /dev/mapper/control -a -x /sbin/lvm ]; then
>         action $"Setting up Logical Volume Management:" /sbin/lvm vgscan
> --mknodes && /sbin/lvm vgchange -a y
>     fi
> fi
> 
> 
> When I try running modprobe dm-mod manually I get:
> 
> FATAL: Module dm_mod not found.
> 
> If dm-mod being missing is the problem who can add that to the kernel?
> 
> If not, anyone know what the problem is?
> 
> Best Regards,
> 
> Paul Eden
> _______________________________________________
> yellowdog-general mailing list
> yellowdog-general at lists.terrasoftsolutions.com
> http://lists.terrasoftsolutions.com/mailman/listinfo/yellowdog-general
> HINT: to Google archives, try  '<keywords> site:terrasoftsolutions.com'
> 

-- 
Terrence Bradshaw
bradshaw at wisc.edu                        |      ASCII ribbon campaign   _
Storage and Systems Administrator        |        against HTML email,  ( ) 
Platforms and Operating Systems          |      Word docs, and vCards   X
Division of Information Technology       |         http://arc.pasp.de  / \