Dotaz: TASK ERROR: lvremove 'pve/vm-100-disk-0' error: Logical volume pve/vm-100-disk-0 contains a filesystem in use

[jany2]

Pouzivam proxmox

proxmox-ve: 5.4-2 (running kernel: 4.15.18-20-pve)
pve-manager: 5.4-13 (running version: 5.4-13/aee6f0ec)
pve-kernel-4.15: 5.4-8
pve-kernel-4.15.18-20-pve: 4.15.18-46
pve-kernel-4.15.18-14-pve: 4.15.18-39
pve-kernel-4.15.18-8-pve: 4.15.18-28
pve-kernel-4.15.17-3-pve: 4.15.17-14
pve-kernel-4.15.17-1-pve: 4.15.17-9
pve-kernel-4.13.13-2-pve: 4.13.13-33
corosync: 2.4.4-pve1
criu: 2.11.1-1~bpo90
glusterfs-client: 3.8.8-1
ksm-control-daemon: 1.2-2
libjs-extjs: 6.0.1-2
libpve-access-control: 5.1-12
libpve-apiclient-perl: 2.0-5
libpve-common-perl: 5.0-55
libpve-guest-common-perl: 2.0-20
libpve-http-server-perl: 2.0-14
libpve-storage-perl: 5.0-44
libqb0: 1.0.3-1~bpo9
lvm2: 2.02.168-pve6
lxc-pve: 3.1.0-6
lxcfs: 3.0.3-pve1
novnc-pve: 1.0.0-3
proxmox-widget-toolkit: 1.0-28
pve-cluster: 5.0-38
pve-container: 2.0-40
pve-docs: 5.4-2
pve-edk2-firmware: 1.20190312-1
pve-firewall: 3.0-22
pve-firmware: 2.0-7
pve-ha-manager: 2.0-9
pve-i18n: 1.1-4
pve-libspice-server1: 0.14.1-2
pve-qemu-kvm: 3.0.1-4
pve-xtermjs: 3.12.0-1
qemu-server: 5.0-54
smartmontools: 6.5+svn4324-1
spiceterm: 3.0-5
vncterm: 1.5-3
zfsutils-linux: 0.7.13-pve1~bpo2

Chcel som si nainstalovat NFS. Este pred tym som vsak upravil kontajner aby NFS fungoval a to tak, ze v Options --> Features som povolil Nesting a NFS. Nainstaloval som do kontajnera (centos) nfs-utils nakonfiguroval som to a exportoval som adresare na zdielanie. NFS server fungoval dobre, kontajner som chcel potom odstranit, ale nebolo mozne ho odstranit. Vzdy som dostal ny vystup

TASK ERROR: lvremove 'pve/vm-100-disk-0' error:   Logical volume pve/vm-100-disk-0 contains a filesystem in use

Nedokazem zistit, kde je FS pripojeny, kde sa pouziva a teda LXC nejde odstranit. Googlil som a skusal som vselico no nepodarilo sa mi ho odstranit, pretoze FS sa stale pouzival. Po restarte celeho stroja odstranenie kontajnera fungovalo, ale to nie je riesenim do buducna. Vedel by niekto poradit s tymto problemom ?

Odpovědi

[k3dAR]

# mozna zjistis kam je pripojen (nevim jak s proxmox)
mount | grep vm-100-disk-0

# mozna zjistis co to vyuziva (opet nevim jak s proxmox)
lsof | grep /ta/pripojena/cesta

[jany2]

Myslim, ze som to skusal, pretoze ked som googlil, tak som sa dostal aj k tomu. Vysledok si nepamatam, ale urcite to nenaslo kde je to pripojene, inak by som do odpojil a lxc skusil znicit.

Skusim si nfs este raz nainstalovat a budem zistovat, preco to nejde odpojit

[Peter Golis]

Nemal ten LXC kontajner úložisko v danej LV?

[jany2]

Tu je cely mount

sysfs on /sys type sysfs (rw,nosuid,nodev,noexec,relatime)
proc on /proc type proc (rw,relatime)
udev on /dev type devtmpfs (rw,nosuid,relatime,size=3912512k,nr_inodes=978128,mode=755)
devpts on /dev/pts type devpts (rw,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode=000)
tmpfs on /run type tmpfs (rw,nosuid,noexec,relatime,size=786744k,mode=755)
/dev/mapper/pve-root on / type ext4 (rw,relatime,errors=remount-ro,data=ordered)
securityfs on /sys/kernel/security type securityfs (rw,nosuid,nodev,noexec,relatime)
tmpfs on /dev/shm type tmpfs (rw,nosuid,nodev)
tmpfs on /run/lock type tmpfs (rw,nosuid,nodev,noexec,relatime,size=5120k)
tmpfs on /sys/fs/cgroup type tmpfs (ro,nosuid,nodev,noexec,mode=755)
cgroup on /sys/fs/cgroup/systemd type cgroup (rw,nosuid,nodev,noexec,relatime,xattr,release_agent=/lib/systemd/systemd-cgroups-agent,name=systemd)
pstore on /sys/fs/pstore type pstore (rw,nosuid,nodev,noexec,relatime)
cgroup on /sys/fs/cgroup/rdma type cgroup (rw,nosuid,nodev,noexec,relatime,rdma)
cgroup on /sys/fs/cgroup/freezer type cgroup (rw,nosuid,nodev,noexec,relatime,freezer)
cgroup on /sys/fs/cgroup/cpuset type cgroup (rw,nosuid,nodev,noexec,relatime,cpuset)
cgroup on /sys/fs/cgroup/cpu,cpuacct type cgroup (rw,nosuid,nodev,noexec,relatime,cpu,cpuacct)
cgroup on /sys/fs/cgroup/hugetlb type cgroup (rw,nosuid,nodev,noexec,relatime,hugetlb)
cgroup on /sys/fs/cgroup/net_cls,net_prio type cgroup (rw,nosuid,nodev,noexec,relatime,net_cls,net_prio)
cgroup on /sys/fs/cgroup/blkio type cgroup (rw,nosuid,nodev,noexec,relatime,blkio)
cgroup on /sys/fs/cgroup/pids type cgroup (rw,nosuid,nodev,noexec,relatime,pids)
cgroup on /sys/fs/cgroup/perf_event type cgroup (rw,nosuid,nodev,noexec,relatime,perf_event)
cgroup on /sys/fs/cgroup/devices type cgroup (rw,nosuid,nodev,noexec,relatime,devices)
cgroup on /sys/fs/cgroup/memory type cgroup (rw,nosuid,nodev,noexec,relatime,memory)
systemd-1 on /proc/sys/fs/binfmt_misc type autofs (rw,relatime,fd=33,pgrp=1,timeout=0,minproto=5,maxproto=5,direct,pipe_ino=286)
hugetlbfs on /dev/hugepages type hugetlbfs (rw,relatime,pagesize=2M)
debugfs on /sys/kernel/debug type debugfs (rw,relatime)
mqueue on /dev/mqueue type mqueue (rw,relatime)
sunrpc on /run/rpc_pipefs type rpc_pipefs (rw,relatime)
fusectl on /sys/fs/fuse/connections type fusectl (rw,relatime)
configfs on /sys/kernel/config type configfs (rw,relatime)
/dev/sda2 on /boot/efi type vfat (rw,relatime,fmask=0022,dmask=0022,codepage=437,iocharset=iso8859-1,shortname=mixed,errors=remount-ro)
lxcfs on /var/lib/lxcfs type fuse.lxcfs (rw,nosuid,nodev,relatime,user_id=0,group_id=0,allow_other)
/dev/fuse on /etc/pve type fuse (rw,nosuid,nodev,relatime,user_id=0,group_id=0,default_permissions,allow_other)
nfsd on /proc/fs/nfsd type nfsd (rw,relatime)
tmpfs on /run/user/0 type tmpfs (rw,nosuid,nodev,relatime,size=786740k,mode=700)

Co sa tyka NFS, tak tam vidim toto

nfsd on /proc/fs/nfsd type nfsd (rw,relatime)

ale nepomohlo ani

umount /proc/fs/nfsd

[Peter Golis]

Nerozumiem.

Ty si si vybral Flexible Storage do LVM alebo cez NFS? Opisuješ problém s uzamknutým LVM v ktorom si asi mal ten kontajner, a potom píšeš o virtuálnom directory pre kernel NFS Daemon.

[jany2]

Ja mam nainstalovany proxmox na 120GB SSD (ext4). Proxmox rozdeluje disk automaticky pre VM+LXC a pre backupy (neviem presny pomer, ale dajme tomu ze na polovic (nie som teraz pri servery, takze neviem presne)).

Do LXC (centos) som nainstaloval NFS. Vytvoril som si adresar pre zdielanie a spravil som export adresara. Tym exportom sa adresar asi niekde mountne, len neviem zistit, ze kde.

Ta hlaska hovori o tom, ze pve/vm-100-disk-0 nebude odstraneni, lebo filesystem sa pouziva.

[Peter Golis]

Aha, tak nič. Ja len že Proxzmox umožňuje vybrať veľa rôznych typov pre backend storrage. Počnúc súborovým serverom, cez LVM, ZFS/ZPool až po Distributed RBD.

Na budúce sa pozri kam si to umiestnil, a potom ťa napadne odpoveď na tvoju otázku.