Hi ,
I have done as Mikulas said, and it is OK now..
My autoconf version seems to be low and I install the higher one, and it is OK.
Thank you.
Best regards,
Busby
2010/5/26 Mikulas Patocka <mpatocka@xxxxxxxxxx>
On Wed, 26 May 2010, Busby wrote:Hi
> Hi,
> I have debug the lvm2.02.64 (with the shared-snapshot patches).
> In the last email I mentioned the 'Cannot update volume group vg00 with
> unknown segments in it!'
> The debug mesg: " vg_has_unknown_segments function: snapshot0 has
> unknown seg."
> I don't know when the snapshot0 has been created?why its segtype
> unkown?
> Hope for your help.
> Thank you.
>
> Best regards,
> Busby
I think that you didn't run aclocal and autoconf before ./configure and
make. So the multisnapshot module wasn't compiled in.
Do make distclean, then aclocal, autoconf, ./configure, make
Mikulas
> 在 2010年5月24日 下午5:04，Busby <chaimvy@xxxxxxxxx>写道：
>
> > Hi All,
> >
> > I get the patches from:
> > Linux kernel 2.6.34 patch:
> > http://people.redhat.com/mpatocka/patches/kernel/new-snapshots/r19/
> >
> > LVM2-2.02.64 patch:
> > http://people.redhat.com/msnitzer/patches/multisnap/lvm2/LVM2-2.02.64/
> >
> >
> >
> > but when I used it, the segment type can not find, can anyone help me?
> >
> >
> >
> > [root@new-host-34 ~]# pvcreate /dev/sd[bcdef]
> >
> > [root@new-host-34 ~]# vgcreate vg00 /dev/sd[bcdef]
> >
> > [root@new-host-34 ~]# lvcreate -L 100G -n lv_test /dev/vg00
> >
> > [root@new-host-34 ~]# lvcreate -L 200G -c 256 --sharedstore mikulas -s
> > /dev/vg00/lv_test
> >
> > *WARNING: Unrecognised segment type multisnapshot*
> >
> > * Cannot update volume group vg00 with unknown segments in it!*
> >
> > [root@new-host-34 ~]# lvscan
> >
> > ACTIVE '/dev/vg00/lv_test' [100.00 GiB] inherit
> >
> > inactive '/dev/vg00/lv_test-shared' [200.00 GiB] inherit
> >
> > [root@new-host-34 ~]# lvcreate -s -n lv_test_ss1 /dev/vg00/lv_test
> >
> > *Unable to create new logical volume with no extents*
> >
> >
> >
> >
> >
> > The dm modules in the system:
> >
> >
> >
> > [root@new-host-34 LVM2.2.02.64]# lsmod |grep dm
> > dm_snapshot 25583 0
> > dm_store_daniel 11304 0
> > dm_store_mikulas 43265 0
> > dm_multisnapshot 20276 2 dm_store_daniel,dm_store_mikulas
> > dm_mirror 11564 0
> > dm_multipath 14594 0
> > scsi_dh 5480 1 dm_multipath
> > dm_region_hash 8233 1 dm_mirror
> > dm_log 8158 2 dm_mirror,dm_region_hash
> > dm_mod 58855 9 dm_snapshot,*
> > dm_store_daniel,dm_store_mikulas,dm_multisnapshot*
> > ,dm_mirror,dm_multipath,dm_log
> >
> >
> >
> >
> >
> > I just want to use the multisnap by LVM2 command. But I don't know
> > is there any document about HOW-TO?
> >
> > Thank you very much.
> >
> >
> >
> >
> >
> >
> >
> > Best regards,
> >
> > Busby
> >
>
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