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re: LVM
> On 11/19/2011 13:45, AGC wrote:
> > On a generic system, where do I find the LVM module? modstat shows
> > nothing loaded and modload dm says "module object must end in .o". I
> > want to try and merge two disks together so I can do the system update.
> >
>
> Related to this, I can't seem to delete the disklabels from the two disks:
>
> > 8 partitions:
> > # size offset fstype [fsize bsize cpg/sgs]
> > c: 4154160 0 ccd # (Cyl. 0 -
> > 2732)
> > f: 2310400 0 4.2BSD 1024 8192 16 # (Cyl. 0 -
> > 1519)
> > h: 1843760 2310400 4.2BSD 1024 8192 16 # (Cyl. 1520 -
> > 2732)
> > disklabel: partitions c and f overlap
> > disklabel: partitions c and h overlap
>
> > 8 partitions:
> > # size offset fstype [fsize bsize cpg/sgs]
> > a: 4194828 0 4.2BSD 1024 8192 16 # (Cyl. 0 -
> > 3530+)
> > c: 4194995 0 unknown # (Cyl. 0 -
> > 3531+)
> > disklabel: partition a: partition extends past end of unit
> > disklabel: partitions a and c overlap
> > disklabel: partition c: partition extends past end of unit
>
> I've tried disklabel -D:
>
> > # disklabel -D -v sd1
> > disklabel: Invalid signature in mbr record 0
> > # disklabel -D -v sd2
> > disklabel: Invalid signature in mbr record 0
huh. i never heard of disklabel -D. it probably should be marked
as not being relevant on sparc in the manual, or disabled, since
it "implies -r" and netbsd/sparc doesn't really support that one
either (at least not if you want to talk to the prom.)
> I've tried the suggested dd if=/dev/zero of=/dev/rsd1c bs=8k count=1
> with no success.
try "disklabel -W sd1" and sd2, and then the above dd. i am
guessing that the label protection is set.
> There's nothing on the two disks that I need so I'm just trying to wipe
> them and start over so I can merge them into a single volume. They're
> not huge (only 2.1 GB each) but I figure 4.2 GB should be enough to
> store CVS and build the new userland? The kernel sources are located on
> another disk right now and it seems to fit fine there.
FWIW, i recommend raidframe over LVM currently. the latter is very
new and you'd be the first to try on sparc i guess.
http://www.netbsd.org/docs/guide/en/chap-rf.html
has a lot of info, though maybe
http://wiki.netbsd.org/set-up_raidframe/
is a little simpler. note that the instructions for eg, "fdisk"
should almost always be ignored on sparc, and the "installboot"
instructions may not be entirely correct... but i suspect you
don't care since you'd booting from sd0? you should also ignore
the "raidctl -A root" instructions if so, but "-A yes" is good.
.mrg.
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