From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Mon, 24 Aug 2020 10:33:25 -0500 From: David Teigland Message-ID: <20200824153325.GB4771@redhat.com> References: MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: Subject: Re: [linux-lvm] What to do about new lvm messages Reply-To: LVM general discussion and development List-Id: LVM general discussion and development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , List-Id: Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: L A Walsh Cc: linux-lvm@redhat.com On Sat, Aug 22, 2020 at 04:36:27AM -0700, L A Walsh wrote: > pvcreate -M2 --pvmetadatacopies 2 /dev/sda1 > Failed to clear hint file. > So why am I getting a message about not clearing a hint file (running s root) I'm guessing that no commands have permission to use /run/lvm/hints, so they just skip it. But, this is one place printing a warning about it. I'll remove the warning. Run 'pvs', and check if /run/lvm/hints exists. If not, you might want to look at permission issues. > and how do I modify a VG that I don't want to make any modifications to? To fix that header you can run 'vgck --updatemetadata Backup'. > From an online man page, I should have been able to use -ff to recreate > a pv over the top of a preexisting one, but that didn't seem to work. I > got: > pvcreate -ff -M2 --pvmetadatacopies 2 /dev/sda1 > Failed to clear hint file. > WARNING: PV /dev/sdd1 in VG Backup is using an old PV header, modify > the VG to update. > Cannot access VG Space with system ID Ishtar with unknown local system ID. > Device /dev/sda1 excluded by a filter. You're not using system ID correctly. > I also ran into a problem on how to tell vgcreate to use the whole pv. > That was complicated by trying to specify my hostname as a system id: > Cannot access VG Space with system ID Ishtar with unknown local system ID. The machine needs to have a system ID configured. See lvmsysystemid(7) and edit lvm.conf/lvmlocal.conf. Then vgcreate will use the machine's system for the new VG. Using --systemid overrides the local value which you don't want.