On 12/07/2013 05:58 PM, gottl...@nyu.edu wrote: > On Sat, Dec 07 2013, Canek Peláez Valdés wrote: > >> On Dec 7, 2013 12:40 PM, "walt" <w41...@gmail.com> wrote: >>> >>> Just updated my stable amd64 machine to use systemd and all is working >>> okay except for the lvm.service. >>> >>> The lvm.service starts with no errors, but OTOH it finds no physical or >>> logical volumes. I suspect this happens because the drive using lvm2 >>> is in a usb3 external dock instead of attached to the mobo. >>> >>> When I run 'systemctl restart lvm' manually, the usb3 disk is activated >>> and mounted successfully. Thus I think the lvm.service runs too early >>> during boot. >>> >>> Here is my lvm.service (which I copied from another distro, IIRC): >>> >>> #cat /etc/systemd/system/lvm.service >>> >>> [Unit] >>> Description=LVM >>> DefaultDependencies=no >>> Requires=systemd-udev-settle.service >>> Before=shutdown.target local-fs.target >>> >>> [Service] >>> Type=oneshot >>> RemainAfterExit=yes >>> ExecStart=/sbin/pvscan --ignorelockingfailure >>> ExecStart=/sbin/vgscan --mknodes --ignorelockingfailure >>> ExecStart=/sbin/vgchange --sysinit -a ly >>> ExecStop=/sbin/lvchange --sysinit -a ln $(/sbin/vgs -o vg_name >> --noheadings --nosuffix) >>> ExecStop=/sbin/lvchange --sysinit -a ln >>> ExecStop=/sbin/vgchange --sysinit -a ln >>> >>> [Install] >>> WantedBy=sysinit.target >>> >>> Is there an elegant way to fix the problem as opposed to a hack? >> >> I believe that for recent enough versions of LVM2, it includes an official >> lvm2.service unit file(s). Could you try that one and see if it works as >> you expect?
It has the same problem. I looked more carefully at the systemd logs and found that lvm was running before the xhci kernel module was loaded, hence the usb3 drive was not visible yet. I "fixed" the problem by adding "After=basic" to the lvm.service file, and now it works as expected. (Expected by me, anyway :) > > I have the recent lvm2 (2.02.104) and the unit files in > /usr/lib/systemd/system are called > > lvm2-lvmetad.service > lvm2-lvmetad.socket > lvm2-monitor.service > lvm2-pvscan@.service That last file must have been added for version .104. I'll take a look, thanks.
