[clue-tech] mount second hard drive

David L. Willson DLWillson at TheGeek.NU
Wed Jul 16 10:44:54 MDT 2008


David likes Bob.  Bob brings fun projects, and beer.  :-)
David is letting Dave be the heavy on this one, and learning stuph for
next time.  :-)

On Wed, 2008-07-16 at 09:54 -0600, Bob Meetin wrote:
> 'likes' is sooooo overused.  'tolerate' comes to mind unless of course 
> you're talking beer, i.e. imported generic BEER in a white can with 12 
> oz in size 48 font.
> 
> I reran the commands and recleansed the output.  When I used 'script' 
> yesterday it dumped a load of control characters into the output which 
> although I mostly cleaned it up it clouded the output.
> 
> *Without the external disk mounted:*
> 
> root at syncsync:~# vgscan --mknodes
>  Reading all physical volumes.  This may take a while...
>  No volume groups found
>  No volume groups found
> 
> *Here I connected the external disk via USB:*
> 
> root at syncsync:~# vgscan --mknodes
>  Reading all physical volumes.  This may take a while...
>  Found volume group "VolGroup00" using metadata type lvm2
> 
> root at syncsync:~# vgscan
>  Reading all physical volumes.  This may take a while...
>  Found volume group "VolGroup00" using metadata type lvm2
> 
> root at syncsync:~# ls -l /dev/mapper
> total 0
> crw-rw---- 1 root root  10, 63 2008-07-16 02:43 control
> brw-rw---- 1 root disk 254,  0 2008-07-16 09:40 VolGroup00-LogVol00
> brw-rw---- 1 root disk 254,  1 2008-07-16 09:40 VolGroup00-LogVol01
> 
> root at syncsync:~# lsmod | grep dm_mod
> dm_mod                 62660  5 dm_mirror,dm_snapshot
> 
> root at syncsync:~# vgchange -a y
>  2 logical volume(s) in volume group "VolGroup00" now active
> 
> root at syncsync:~# ls -l /dev/mapper
> total 0
> crw-rw---- 1 root root  10, 63 2008-07-16 02:43 control
> brw-rw---- 1 root disk 254,  0 2008-07-16 09:40 VolGroup00-LogVol00
> brw-rw---- 1 root disk 254,  1 2008-07-16 09:40 VolGroup00-LogVol01
> root at syncsync:~#
> 
> -Bob
> 
> 
> David L. Anselmi wrote:
> > Bob Meetin wrote:
> >> 1) David got his beer and then some...
> >
> > You let him off without fixing your LVM problem?  No wonder he likes 
> > you ;-)
> >
> >> root at syncsync:/bin# df
> >> Filesystem           1K-blocks      Used Available Use% Mounted on
> > [...]
> >> lrm                     972280     38684    933596   4% 
> >> /lib/modules/2.6.24-19-generic/volatile
> >
> > 2.6.24 is plenty good.
> >
> >> root at syncsync: /binroot at syncsync:/bin# vgscan
> >>  Reading all physical volumes.  This may take a while...
> >>  Found volume group "VolGroup00" using metadata type lvm2
> >
> > So this part worked.
> >
> >> root at syncsync: /binroot at syncsync:/bin# vgchange -a y
> >>  /proc/misc: No entry for device-mapper found
> >>  Is device-mapper driver missing from kernel?
> >
> > To answer this do "lsmod | grep dm_mod".  If you don't get any output 
> > try "modprobe dm_mod".  Then try the vgscan/vgchange commands again.
> >
> > If vgchange works after loading the module you should find the things 
> > you can mount in /dev/mapper.
> >
> > Dave
> >
> >
> >
> 
> 



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