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Zdravím,

updatoval jsem system na serveru. Nejdřív jsem dělal update jádra (je tam ted 3.18.20, staženo přímo z kernel.org) a pak jsem rozjel apt-get update. NAinstalovl se systemd a plno updatů.

Po restartu to nicméně nenaběhlo, protože chyběla pdopra pro cgroup (viz systemd!). Po překompilování jádra to zase padalo do nějakýho safe modu, protože ve fstabu byly odkazy na nepřipojené disky (jak kvuli tomu může nenaběhnout systém..?!!).

Ted už to celkem funguje, až na jednu celkem duležitou věc a to je LVM. Nevytvoří se zařízení v /dev, a dokonce ani pvscan nic nenajde. P5itom před tím to normálně fungovalo a fdisk i blkid tam ty LVM2 partitiony vidí:

/dev/hda1: UUID="36c4ca6a-8eac-4f22-8674-343aa6fe8033" TYPE="ext2" PARTUUID="3db012b3-01"
/dev/hda2: UUID="23c296e5-a11e-4727-8a7a-c2a9d13fec07" TYPE="swap" PARTUUID="3db012b3-02"
/dev/hdd1: UUID="0a3fedc8-1e48-4a96-b225-00c009f7e919" TYPE="ext2" PARTUUID="d0300f68-01"
/dev/sda1: UUID="1065P9-8FVM-74Z2-7mHW-ellO-riXt-ztu5eE" TYPE="LVM2_member" PARTUUID="89303d2b-01"
/dev/sdb: UUID="yEiJ1m-gB6V-WOrC-erHI-stG5-okpy-CVCjHp" TYPE="LVM2_member"

Ale pvscan nic:

DebServer:~# pvscan -vvvv
#lvmcmdline.c:1575         DEGRADED MODE. Incomplete RAID LVs will be processed.
#libdm-config.c:1013       Setting activation/monitoring to 1
#lvmcmdline.c:1581         Processing: pvscan -vvvv
#lvmcmdline.c:1582         system ID: 
#lvmcmdline.c:1585         O_DIRECT will be used
#libdm-config.c:949       Setting global/locking_type to 1
#libdm-config.c:1013       Setting global/wait_for_locks to 1
#locking/locking.c:129       File-based locking selected.
#libdm-config.c:1013       Setting global/prioritise_write_locks to 1
#libdm-config.c:918       Setting global/locking_dir to /run/lock/lvm
#libdm-config.c:1013       Setting global/use_lvmlockd to 0
#misc/lvm-flock.c:200       Locking /run/lock/lvm/P_global WB
#misc/lvm-flock.c:101         _do_flock /run/lock/lvm/P_global:aux WB
#misc/lvm-flock.c:101         _do_flock /run/lock/lvm/P_global WB
#misc/lvm-flock.c:48         _undo_flock /run/lock/lvm/P_global:aux
#filters/filter-persistent.c:51     Wiping cache of LVM-capable devices
#cache/lvmcache.c:1965     Wiping internal VG cache
#cache/lvmcache.c:498         Metadata cache has no info for vgname: "#orphans_lvm1"
#cache/lvmcache.c:498         Metadata cache has no info for vgname: "#orphans_lvm1"
#cache/lvmcache.c:1445         lvmcache: initialised VG #orphans_lvm1
#cache/lvmcache.c:498         Metadata cache has no info for vgname: "#orphans_pool"
#cache/lvmcache.c:498         Metadata cache has no info for vgname: "#orphans_pool"
#cache/lvmcache.c:1445         lvmcache: initialised VG #orphans_pool
#cache/lvmcache.c:498         Metadata cache has no info for vgname: "#orphans_lvm2"
#cache/lvmcache.c:498         Metadata cache has no info for vgname: "#orphans_lvm2"
#cache/lvmcache.c:1445         lvmcache: initialised VG #orphans_lvm2
#cache/lvmetad.c:778         Asking lvmetad for complete list of known VGs
#libdm-config.c:918       Setting response to OK
#libdm-config.c:918       Setting response to OK
#pvscan.c:386     Walking through all physical volumes
#cache/lvmetad.c:701         Asking lvmetad for complete list of known PVs
#libdm-config.c:918       Setting response to OK
#libdm-config.c:918       Setting response to OK
#pvscan.c:444   No matching physical volumes found
#misc/lvm-flock.c:71       Unlocking /run/lock/lvm/P_global
#misc/lvm-flock.c:48         _undo_flock /run/lock/lvm/P_global
#lvmcmdline.c:1676         Completed: pvscan -vvvv

Při bootu se objevují různé chyby, ale nevím, jestli s tím souvisí:

Aug 21 16:28:05 DebServer systemd[1]: Failed to start Load Kernel Modules.
Aug 21 16:28:05 DebServer udevd[862]: starting version 175
Aug 21 16:28:05 DebServer systemd[1]: Failed to start Load Kernel Modules.
Aug 21 16:28:05 DebServer systemd-journal[1304]: Journal started
-- Subject: The journal has been started
-- Defined-By: systemd
-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
-- 
-- The system journal process has started up, opened the journal
-- files for writing and is now ready to process requests.
Aug 21 16:28:05 DebServer udevd[862]: IMPORT{builtin}: 'blkid' unknown /lib/udev/rules.d/60-persistent-storage
-dm.rules:23
Aug 21 16:28:05 DebServer systemd-modules-load[756]: Inserted module 'lp'
Aug 21 16:28:05 DebServer udevd[862]: IMPORT{builtin}: 'blkid' unknown /lib/udev/rules.d/69-lvm-metad.rules:24

Napadá vás, co vyzkoušet? Našel jsem tohle:

http://www.tldp.org/HOWTO/LVM-HOWTO/recovermetadata.html

Ale bojím se to zkusit ... protože tam mám celkem dost dat a nemám místo, kam bych mohl zálohovat obrazy těch disků.

Jo a mimochodem .... udělal jsem si zálohu celýho systemu před tím updatem. Bohužel, zrovna do toho LVMka