I was able to use this hook to get Ubuntu 15.10 installed and running from a thin LVM volume in a VirtualBox VM.
However, the lvm2-monitor service seems wonky if started from the initramfs, strange errors like: <volumegroup>-<lvpool>-tpool: event registration failed: 2561:11 libdevmapper-event-lvm2thin.so dlopen failed: /lib/x86_64-linux-gnu /device-mapper/libdevmapper-event-lvm2thin.so: cannot open shared object file: No such file or directory even though the library is both in the root fs and the initrd. Leaving dmeventd and its libraries out of the initramfs seems to allow it to function normally. -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to lvm2 in Ubuntu. https://bugs.launchpad.net/bugs/1539934 Title: Load thin Kernel Modules in initramfs for support on boot Status in lvm2 package in Ubuntu: Confirmed Bug description: I have an issue where lvm2 thinpool volume groups are not automatically activated after reboot. Environmentals: Ubuntu Server 15.10, minimal install UEFI/Secure Boot in use Ubuntu 15.10 (GNU/Linux 4.2.0-25-generic x86_64) root@cluster-02:~# cat /etc/os-release NAME="Ubuntu" VERSION="15.10 (Wily Werewolf)" ID=ubuntu ID_LIKE=debian PRETTY_NAME="Ubuntu 15.10" VERSION_ID="15.10" HOME_URL="http://www.ubuntu.com/"; SUPPORT_URL="http://help.ubuntu.com/"; BUG_REPORT_URL="http://bugs.launchpad.net/ubuntu/"; Here is the volume config before adding the new volume: root@cluster-02:~# lvs -a LV VG Attr LSize Pool Origin Data% Meta% Move Log Cpy%Sync Convert lvswap vgraid0 -wi-ao---- 29.80g lvtmp vgraid0 -wi-ao---- 29.80g lvvartmp vgraid0 -wi-ao---- 29.80g lvhome vgraid10 -wi-ao---- 29.80g lvroot vgraid10 -wi-ao---- 7.45g lvusr vgraid10 -wi-ao---- 7.45g lvvar vgraid10 -wi-ao---- 3.72g lvvarcache vgraid10 -wi-ao---- 119.21g lvvarlib vgraid10 -wi-ao---- 32.00g lvvarlog vgraid10 -wi-ao---- 14.90g I add a new thinpool volume using this command: lvcreate -L 1T --type thin-pool --thinpool vgraid10/lvlxc root@cluster-02:~# lvcreate -L 1T --type thin-pool --thinpool vgraid10/lvlxc Logical volume "lvlxc" created. Which results in this lvs: root@cluster-02:~# lvs -a LV VG Attr LSize Pool Origin Data% Meta% Move Log Cpy%Sync Convert lvswap vgraid0 -wi-ao---- 29.80g lvtmp vgraid0 -wi-ao---- 29.80g lvvartmp vgraid0 -wi-ao---- 29.80g lvhome vgraid10 -wi-ao---- 29.80g lvlxc vgraid10 twi-a-tz-- 1.00t 0.00 0.42 [lvlxc_tdata] vgraid10 Twi-ao---- 1.00t [lvlxc_tmeta] vgraid10 ewi-ao---- 128.00m [lvol0_pmspare] vgraid10 ewi------- 128.00m lvroot vgraid10 -wi-ao---- 7.45g lvusr vgraid10 -wi-ao---- 7.45g lvvar vgraid10 -wi-ao---- 3.72g lvvarcache vgraid10 -wi-ao---- 119.21g lvvarlib vgraid10 -wi-ao---- 32.00g lvvarlog vgraid10 -wi-ao---- 14.90g I then create an unprivileged lxc container using the thinpool: root@cluster-02:~# lxc-create -B lvm --vgname=vgraid10 --thinpool=lvlxc -t download -n tmpl-centos-7-unpriv --fssize 16GB -- -d centos -r 7 -a amd64 File descriptor 3 (/var/lib/lxc/tmpl-centos-7-unpriv/partial) leaked on lvcreate invocation. Parent PID 9118: lxc-create Logical volume "tmpl-centos-7-unpriv" created. Using image from local cache Unpacking the rootfs ... The lvs output: root@cluster-02:~# lvs -a LV VG Attr LSize Pool Origin Data% Meta% Move Log Cpy%Sync Convert lvswap vgraid0 -wi-ao---- 29.80g lvtmp vgraid0 -wi-ao---- 29.80g lvvartmp vgraid0 -wi-ao---- 29.80g lvhome vgraid10 -wi-ao---- 29.80g lvlxc vgraid10 twi-aotz-- 1.00t 0.09 0.46 [lvlxc_tdata] vgraid10 Twi-ao---- 1.00t [lvlxc_tmeta] vgraid10 ewi-ao---- 128.00m [lvol0_pmspare] vgraid10 ewi------- 128.00m lvroot vgraid10 -wi-ao---- 7.45g lvusr vgraid10 -wi-ao---- 7.45g lvvar vgraid10 -wi-ao---- 3.72g lvvarcache vgraid10 -wi-ao---- 119.21g lvvarlib vgraid10 -wi-ao---- 32.00g lvvarlog vgraid10 -wi-ao---- 14.90g tmpl-centos-7-unpriv vgraid10 Vwi-a-tz-- 16.00g lvlxc 5.94 Everything is ok at this point. Now, I will reboot the machine. root@cluster-02:~# lvs -a LV VG Attr LSize Pool Origin Data% Meta% Move Log Cpy%Sync Convert lvswap vgraid0 -wi-ao---- 29.80g lvtmp vgraid0 -wi-ao---- 29.80g lvvartmp vgraid0 -wi-ao---- 29.80g lvhome vgraid10 -wi-ao---- 29.80g lvlxc vgraid10 twi---tz-- 1.00t [lvlxc_tdata] vgraid10 Twi------- 1.00t [lvlxc_tmeta] vgraid10 ewi------- 128.00m [lvol0_pmspare] vgraid10 ewi------- 128.00m lvroot vgraid10 -wi-ao---- 7.45g lvusr vgraid10 -wi-ao---- 7.45g lvvar vgraid10 -wi-ao---- 3.72g lvvarcache vgraid10 -wi-ao---- 119.21g lvvarlib vgraid10 -wi-ao---- 32.00g lvvarlog vgraid10 -wi-ao---- 14.90g tmpl-centos-7-unpriv vgraid10 Vwi---tz-- 16.00g lvlxc At this point, the volume groups (thinpool and thin volume) are not active. This causes issues and requires that I manually activate the volumes: root@cluster-02:~# lvchange -ay vgraid10/lvlxc root@cluster-02:~# lvs -a LV VG Attr LSize Pool Origin Data% Meta% Move Log Cpy%Sync Convert lvswap vgraid0 -wi-ao---- 29.80g lvtmp vgraid0 -wi-ao---- 29.80g lvvartmp vgraid0 -wi-ao---- 29.80g lvhome vgraid10 -wi-ao---- 29.80g lvlxc vgraid10 twi-aotz-- 1.00t 0.09 0.46 [lvlxc_tdata] vgraid10 Twi-ao---- 1.00t [lvlxc_tmeta] vgraid10 ewi-ao---- 128.00m [lvol0_pmspare] vgraid10 ewi------- 128.00m lvroot vgraid10 -wi-ao---- 7.45g lvusr vgraid10 -wi-ao---- 7.45g lvvar vgraid10 -wi-ao---- 3.72g lvvarcache vgraid10 -wi-ao---- 119.21g lvvarlib vgraid10 -wi-ao---- 32.00g lvvarlog vgraid10 -wi-ao---- 14.90g tmpl-centos-7-unpriv vgraid10 Vwi---tz-- 16.00g lvlxc I have tried setting flags on the thinpool (vgraid10/lvlxc) as follows, to no avail: root@cluster-02:~# lvchange -kn vgraid10/lvlxc root@cluster-02:~# lvchange -ay vgraid10/lvlxc root@cluster-02:~# lvchange -aye vgraid10/lvlxc To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/lvm2/+bug/1539934/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
