The service has this: [Service] Type=oneshot ExecStart=/usr/bin/true ExecStop=/sbin/blkdeactivate -u -l wholevg RemainAfterExit=yes Resulting to failures during start up because in Gentoo it should really use /bin/true instead of /usr/bin/true. Better yet if you add some logic in the ebuild (maybe in post_* functions so it can affect binary packages too) which detects where 'true' is installed and patch the service file. That will make things easier when Gentoo moves from /{bin,sbin} to /usr/{bin,sbin} like other distros do. But well, that can happen later on. The patch is trivial but rather important to make lvm2 useful in systemd. Please consider fixing it. I will wait a few days and then I will fix it myself because I need to patch all the systemd+lvm2 servers manually to make that work with Gentoo.
ping? Is the proposed solution (/usr/bin/true -> /bin/true) ok with you?
(no revision bump because mirrors didn't have time to sync in-between) 30 Jul 2014; Samuli Suominen <ssuominen@gentoo.org> lvm2-2.02.108.ebuild: Use /bin/true instead of /usr/bin/true in scripts/blk_availability_systemd_red_hat.service.in because Gentoo doesn't have the so called usr -merge wrt #517514 by Markos Chandras. Enable "use_lvmetad = 1" by default in lvm.conf with USE="systemd lvmetad -device- mapper-only" wrt #514196 by Pacho Ramos. *lvm2-2.02.108 (30 Jul 2014) 30 Jul 2014; Samuli Suominen <ssuominen@gentoo.org> +files/lvm2-2.02.108-example.conf.in.patch, +files/lvm2-2.02.108-static-pkgconfig-libs.patch, +lvm2-2.02.108.ebuild: Version bump. Fix configure logic for cache since it's tied to thin- provisioning-tools.
