I think I had the command wrong. I was trying: lvcreate -s -n snaptest -c 1M -L 200G /dev/vg0/data now, using lvcreate -s -n snaptest -pr -L 200G vg0/data It works like a champ!! Thanks. It seems taking some defaults, as well as beginning the origin path at the vg level fixed it. (not sure, really) Anyhow, it works now - and quite fast too! Thanks for a very cool program. Regards, -- Christopher Barry Manager of Information Systems InfiniCon Systems http://www.infiniconsys.com -----Original Message----- From: Alasdair G Kergon [mailto:agk@uk.sistina.com] Sent: Monday, March 17, 2003 2:23 PM To: linux-lvm@sistina.com Subject: Re: [linux-lvm] Snapshot creating problem On Mon, Mar 17, 2003 at 02:00:36PM -0500, Barry, Christopher wrote: > Mar 17 12:47:16 debian kernel: device-mapper: internal error adding target to table That's a (known) misleading error message - it's no longer necessarily an error internal to the kernel, but can be caused by invalid parameters being supplied to a device-mapper target. > To give you more info I need some instructions on how to get you the debug output. See previous messages on this list, WHATS_NEW file, example.conf, lvm.conf man page etc. e.g. Use a config file containing: log { file='/tmp/lvm2.log' level=7 overwrite=0 } And remember to say exactly which kernel patches you applied. [The device-mapper version number is not sufficient because people have produced patches that don't update it.] For example, a set of patches before Xmas had a bug that is known to stop all snapshots from working. To see if you have that logic bug, check dm-snapshot.c a little after line 400 - it should have: if (persistent != 'P' && persistent != 'N') { ^^ ti->error = "Persistent flag is not P or N"; Alasdair -- agk@uk.sistina.com _______________________________________________ linux-lvm mailing list linux-lvm@sistina.com http://lists.sistina.com/mailman/listinfo/linux-lvm read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/ _______________________________________________ linux-lvm mailing list linux-lvm@sistina.com http://lists.sistina.com/mailman/listinfo/linux-lvm read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/
