On Thu, Mar 04, 2004 at 08:13:18AM -0500, stan wrote: > Date: Thu, 4 Mar 2004 08:13:18 -0500 > From: stan <[EMAIL PROTECTED]> > To: [EMAIL PROTECTED] > Subject: Re: A Newbie LVM Question > > On Wed, Mar 03, 2004 at 02:42:30PM -0500, stan wrote: > > On Wed, Mar 03, 2004 at 09:37:06AM +0100, Erich Waelde wrote: > > Content-Description: message body text > > > > > > Hi, > > > > > > > I've played with LVM on HP-UX, but only just enough to get a firm > > > > handle on the fact that I don't understand the complexities of it, > > > > and that is easy to screw up, but hard to fix :-) > > > > > > > > So, I find myself building a Debian MytTV machine. In addition > > > > to the 40G root drive, I installed 2 other drives, a 60G (/dev/hdb), > > > > and a 120G (/dev/hdd). > > > > > > > > What I want to do is create one large "virtual disk" out of these, > > > > then I will then create a XFS filesystem on and use to store various > > > > multimedia files for mythtv. I want the disks to be "striped" if > > > > that is possible with different size disks? > > > > > > > > I've installed the lvm (1) packages, and I've read the HOWTO. > > > > Here is what I came up with: > > > > > > > > fdisk both disks, creating a single partition on each one of type 8e > > > > > > > > pvcreate /dev/hdb1 > > > > pvcreate /dev/hdd1 > > > > > > > > vgcreate mythtv /dev/hdb1 /dev/hdd1 > > > > > > > > And then I should be ready to create a filesystem on this "virtual > > > > disk". > > > > > > Not quite. You need to run > > > > > > lvcreate -L <size> -n <name> <vgname> > > > e.g. > > > lvcreate -L 180 GB -n lvol1 mythtv > > > > > > > Well, that did not go as well as expected :-( > > > > The 2 pvcreates worked fine, but the vgcreate reurned an error: > > > > [EMAIL PROTECTED]:~ # vgcreate mythtv /dev/hdb1 /dev/hdd1 > > vgcreate -- INFO: using default physical extent size 32 MB > > vgcreate -- INFO: maximum logical volume size is 2 Terabyte > > vgcreate -- ERROR "lvm_tab_read(): size" inserting volume group "mythtv" > > into "/etc/lvmtab" > > > > What do I need to do now? > > > I made a little more progress on this last night. I was able to actually > create a working lvm, and format it as XFS (I do think I left some rements > of a bad atempt laying aroud BTW, is it safe to just rmmive these traces?). > > > In any case, when I rebooted that machine the new lvm parition did not > mount (yes I put it in /etc/fstab)/ Atempts to mount it by had result in a > message about it not being "active". Do you have script /etc/init.d/lvm ? 1st you must run vgscan to scan volume groups and after that vgchange -a y
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