On Tue, Sep 23, 2008 at 12:35:21AM -0400, Eric wrote: > At 08:40 PM 9/22/2008, Paul W. Frields wrote: > >>>>> > >The LVM system uses UUIDs (which are almost guaranteed to be unique) to > >label each LVM PV, VG, and LV. I believe you can use "vgscan" to > >display them, and then reference the UUID of the VG in question when you > >run "vgrename" to rename it to something *not* "VolGroup00". > <<<<< > Thanks but it doesn't work. > Evidently vgrename will not allow me to rename a mounted volume; it > says "Volume group "VolGroup00" still has active LVs". As per man page you use the uuid on the vgrename command line to rename the *inactive* VG. + "vgrename Zvlifi-Ep3t-e0Ng-U42h-o0ye-KHu1-nl7Ns4 VolGroup00_tmp" changes + the name of the Volume Group with UUID + Zvlifi-Ep3t-e0Ng-U42h-o0ye-KHu1-nl7Ns4 to "Vol- Group00_tmp". + + All the Volume Groups visible to a system need to have different names. + Otherwise many LVM2 commands will refuse to run or give warning + messages. + + This situation could arise when disks are moved between machines. If a + disk is connected and it contains a Volume Group with the same name as + the Volume Group containing your root filesystem the machine might not + even boot correctly. However, the two Volume Groups should have + different UUIDs (unless the disk was cloned) so you can rename one of + the conflicting Volume Groups with vgrename. Older version of Fedora don't have that option. For them you'll either need to use up-to-date packages from somewhere (eg live CD) or else edit the filters in /etc/lvm/lvm.conf to hide one of the devices temporarily while you do the vgrename, then reinstate it. Alasdair -- agk@xxxxxxxxxx -- fedora-list mailing list fedora-list@xxxxxxxxxx To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-list Guidelines: http://fedoraproject.org/wiki/Communicate/MailingListGuidelines
