When you try to use the below command :
zfs create -o mountpoint=/u01 rpool/u01
Error :
cannot mount ‘rpool/u01’ on ‘/u01’: mountpoint or dataset is busy
The Solution :
- First destroy rpool/u01
- zfs create rpool/u01
- zfs set mountpoint=/u01 rpool/u01
- mkdir /u01
- zfs mount /u01
Thank you
Osama Mustafa