How to Solve macOS Shares R/W Errors in SynetoOS 4

Written By Christian Castagna (Administrator)

Updated at October 22nd, 2025

→ Applies to: SynetoOS 4.x

IMPORTANT
No users should be connected to any shares while running the following commands.

 

Step 1. Connect to SynetoOS appliance via SSH as admin

ssh admin@<your_ip_address_or_hostname>

 

Step 2. Enable “nbmand” parameter (replace <pool_name> and <share_name> with the correct information)

 
zfs set nbmand=on <pool_name>/shares/smb/<share_name>

 

Step 3. Unmount and remount the macOS share (replace <pool_name> and <share_name> with the correct information)

 
 
zfs umount <pool_name>/shares/smb/NAME_SHARE
zfs mount <pool_name>/shares/smb/NAME_SHARE

Repeat the commands for each macOS share you need to remount.

 

Step 4. Manually disconnect any SynetoOS share on your macOS system(s)

Step 5. Manually delete any credentials saved in the macOS keychain

Step 6. Reboot your macOS system(s)