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Date: Fri, 8 Feb 2019 19:19:26 +0000
From: Gary Palmer <gpalmer@freebsd.org>
To: Harry Newton <harry@yewbarrow.net>
Cc: freebsd-geom@freebsd.org
Subject: Re: geom_linux_lvm
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On Fri, Feb 08, 2019 at 06:58:56PM +0000, Harry Newton wrote:
>  Name Status Components
> da0p1     OK da0
> 
> and the same for da1.
> 
> 
> On Thu, 7 Feb 2019 at 14:25, Gary Palmer <gpalmer@freebsd.org> wrote:
> 
> > On Thu, Feb 07, 2019 at 05:36:03AM +0000, Harry Newton wrote:
> > > Trying to read a Linux raid array ( as per
> > > https://wiki.archlinux.org/index.php/Software_RAID_and_LVM ) which I can
> > > read perfectly well on a couple of Linux boxes.  geom_linux_lvm.ko
> > loaded,
> > > but:
> > >
> > >   geom linux_lvm list
> > >   geom linux_lvm status
> > >
> > > return nothing.  kern.geom.debugflags=16 and
> > kern.geom.linux_lvm.debug=16,
> > > but *nothing* in logs.  No /dev/linux_lvm/ entries appear, though the two
> > > component disks appear as /dev/da0 and /dev/da1.
> > >
> > > Suspect I maybe missing something obvious: any ideas where I can start
> > > debugging this ?
> >
> > Unless I'm missing something (not a big Linux user), LVM is normally
> > as a partition on the disks, not the whole disk.  Do the disk
> > partitions show up or just the whole disks?  What does
> >
> > gpart show da0
> > gpart show da1
> >
> > return?
> >
> > Gary
> >

Hi,

Do you know if the disks are partitioned under Linux?  If so, you'll need
to find the appropriate partition module for FreeBSD.  e.g.
geom_part_mbr or geom_part_gpt or something.

Regards,

Gary