I am reinstall ghost.
Now i am import successfully zroot pool
I want umount pool but cant.
root@devuan:/# zpool export zroot
cannot unmount '/var/log': pool or dataset is busy
root@devuan:/# zfs get mountpoint
NAME PROPERTY VALUE SOURCE
zroot mountpoint legacy local
zroot/ROOT mountpoint none local
zroot/ROOT/25.01-backup-2025-04-29-18-27 mountpoint / local
zroot/ROOT/default mountpoint / local
zroot/ROOT/default@2025-04-29-18:27:42-0 mountpoint - -
zroot/home mountpoint /home local
zroot/tmp mountpoint /tmp local
zroot/usr mountpoint /usr local
zroot/usr/ports mountpoint /usr/ports inherited from zroot/usr
zroot/var mountpoint /var local
zroot/var/audit mountpoint /var/audit inherited from zroot/var
zroot/var/crash mountpoint /var/crash inherited from zroot/var
zroot/var/log mountpoint /var/log inherited from zroot/var
zroot/var/mail mountpoint /var/mail inherited from zroot/var
zroot/var/tmp mountpoint /var/tmp inherited from zroot/var
root@devuan:/# zfs holds
usage:
holds [-rHp] <snapshot> ...
For the property list, run: zfs set|get
For the delegated permission list, run: zfs allow|unallow
For further help on a command or topic, run: zfs help [<topic>]
root@devuan:/# zpool list -v
NAME SIZE ALLOC FREE CKPOINT EXPANDSZ FRAG CAP DEDUP HEALTH ALTROOT
zroot 144G 7.42G 137G - 4G 0% 5% 1.00x ONLINE -
sdb 145G 7.42G 137G - 4G 0% 5.15% - ONLINE
root@devuan:/# df -h
Filesystem Size Used Avail Use% Mounted on
udev 1.9G 0 1.9G 0% /dev
tmpfs 392M 1.1M 391M 1% /run
/dev/sde1 71G 28G 40G 42% /
tmpfs 5.0M 8.0K 5.0M 1% /run/lock
tmpfs 1.6G 0 1.6G 0% /dev/shm
/dev/sdc3 340G 262G 61G 82% /home
zroot/tmp 133G 256K 133G 1% /tmp
zroot/usr/ports 133G 128K 133G 1% /usr/ports
zroot/var/crash 133G 128K 133G 1% /var/crash
zroot/var/audit 133G 128K 133G 1% /var/audit
zroot/var/log 133G 512K 133G 1% /var/log
tmpfs 392M 16K 392M 1% /run/user/1000
root@devuan:/# zfs umount -f zroot/var/log
cannot unmount '/var/log': pool or dataset is busy
root@devuan:/# zpool status
pool: zroot
state: ONLINE
status: Some supported and requested features are not enabled on the pool.
The pool can still be used, but some features are unavailable.
action: Enable all features using 'zpool upgrade'. Once this is done,
the pool may no longer be accessible by software that does not support
the features. See zpool-features(7) for details.
config:
NAME STATE READ WRITE CKSUM
zroot ONLINE 0 0 0
sdb ONLINE 0 0 0
errors: No known data errors
root@devuan:/#
root@devuan:/# lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINTS
sda 8:0 0 186.3G 0 disk
├─sda1 8:1 0 10.5G 0 part
├─sda2 8:2 0 1K 0 part
├─sda5 8:5 0 29.3G 0 part
├─sda6 8:6 0 48.8G 0 part
├─sda7 8:7 0 48.8G 0 part
└─sda8 8:8 0 48.8G 0 part
sdb 8:16 0 149G 0 disk
├─sdb1 8:17 0 256K 0 part
├─sdb2 8:18 0 144.5G 0 part
└─sdb3 8:19 0 4.5G 0 part
sdc 8:32 0 931.5G 0 disk
├─sdc1 8:33 0 75.7G 0 part
├─sdc2 8:34 0 4G 0 part
├─sdc3 8:35 0 345.7G 0 part /home
├─sdc4 8:36 0 1K 0 part
└─sdc5 8:37 0 506.1G 0 part
sdd 8:48 0 149G 0 disk
├─sdd1 8:49 0 70.3G 0 part
├─sdd2 8:50 0 4.5G 0 part
├─sdd3 8:51 0 50M 0 part
└─sdd4 8:52 0 74.2G 0 part
sde 8:64 0 223.6G 0 disk
├─sde1 8:65 0 72.3G 0 part /
├─sde2 8:66 0 72.3G 0 part
├─sde3 8:67 0 75G 0 part
├─sde4 8:68 0 1K 0 part
└─sde5 8:69 0 4G 0 part [SWAP]
sdf 8:80 1 30G 0 disk
├─sdf1 8:81 1 800K 0 part
└─sdf3 8:83 1 2.8G 0 part
sr0 11:0 1 1024M 0 rom
root@devuan:/#