From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tupshin Harper Subject: trying to get a domU to manage lvm pvs Date: Fri, 11 Feb 2005 11:33:02 -0800 Message-ID: <420D086E.6090507@tupshin.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: xen-devel-admin@lists.sourceforge.net Errors-To: xen-devel-admin@lists.sourceforge.net List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , List-Archive: To: xen-devel@lists.sourceforge.net List-Id: xen-devel@lists.xenproject.org I'm trying to have a domU run lvm and manage one vg, a few pvs, and lots of lvs without the dom0 having any role in the situation. To simplify things as much as possible, I set up a test with one pv, that is recognized as such by the dom0, and I'm using the same dom0 kernel for my domU. I did the following: * pvcreate /dev/hda6 from dom0, and verified that pvscan showed it * I then explicitly excluded it in dom0's lvm filter, and verified that pvscan did not see it * I added an entry ('phy:hda6,hda6,w') to the domU's disk configuration * started the domU * did a "dd if=/dev/hda6 | less" and saw that the device existed and contained information indication it was a pv. * copied the exact lvm.conf that I was using in dom0 before adding the hda6 exclusion * restarted lvm (and later rebooted the domU just to be certain) * did a pvscan and pvdisplay /dev/hda6, both of which claimed to not see anything * tried to redo the pvcreate from within the domU and got the message: "/dev/hda6: Couldn't find device. Check your filters?" (triple checked the filters) * noted that /etc/lvm/.cache consistently is getting filled with: valid_devices=[ "/dev/loop0", "/dev/loop1", "/dev/loop3", "/dev/loop4", "/dev/loop7", "/dev/loop2", "/dev/md0", "/dev/loop5", "/dev/loop6" ] instead of the specific device(s) that I am handing off to the domU. The dom0 lvm cache contains none of those entries. Any suggestions? ------------------------------------------------------- SF email is sponsored by - The IT Product Guide Read honest & candid reviews on hundreds of IT Products from real users. Discover which products truly live up to the hype. Start reading now. http://ads.osdn.com/?ad_id=6595&alloc_id=14396&op=click