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Re: ZFS legacy mount fails




03.01.2018 21:42, Dan Ritter пишет:
> On Wed, Jan 03, 2018 at 08:26:45PM +0500, Илья Валеев wrote:
>> Hello!
>>
>> I'm trying to mount ZFS dataset with /etc/fstab file. Added string in it:
>>
>> doublediskpool/systemlog /mnt zfs relatime,defaults 0 2
>>
>> Rebooted, and system fails to boot. In boot log I see that spl and zfs
>> modules loaded, than:
>>
>> systemd[1]: mnt.mount: Mount process exited, code=exited status=1
>> systemd[1]: Failes to mount /mnt.
>>
>> After this zfs.target successfully starts, and system fall into
>> emergency mode.
>> Tryed to add in [Install] section of /lib/systemd/system/zfs.target such
>> string:
>>
>> Before=local-fs.target
>>
>> but it does not help.
>> If I enter command (that systemd fail to execute) in emergency mode or
>> booted system:
>>
>> # mount doublediskpool/systemlog /mnt -t zfs -o relatime,defaults
>>
>> than mount executed successfully.
>>
>> Nothing changes if I set another mountpoint.
>>
>> How this can be fixed?
> 
> What does
> 
> zfs get mountpoint doublediskpool/systemlog
> 
> tell you?
> 
> If it doesn't say /mnt as the value, try
> 
> zfs set mountpoint doublediskpool/systemlog /mnt
> 
> -dsr-
> 

# zfs get mountpoint doublediskpool/systemlog
NAME                      PROPERTY    VALUE       SOURCE
doublediskpool/systemlog  mountpoint  legacy      local

For empty /mnt folder it works, yes. What if I want to mount it to
/var/log? It will return error than mountpoint is not empty.