ReadyNAS OS V6.4.1 Release Notes:

RN102 & RN104 systems running firmware older than 6.2.1 should first update to , then update from 6.2.5 to 6.4.1.
RN2120 systems running firmware older than 6.2.1 should first update to , then update from 6.2.4 to 6.4.1.
All other systems can update directly to 6.4.1.

Download Link:

arm (RN102 / RN104 / RN202 / RN204 / RN212 / RN214 / RN2120)
x86 (RN312 / RN314 / RN316 / RN516 / RN716x / RN3130 / RN3138 / RN3220 / RN4220)

New Features:

1. SMB clients will now see the shared quota usage when checking volume usage.
2. The UI Shares page now has a new layout to provide more information at a glance. See for further information.
3. Added AFP forced permission setting option for new files and folders.
4. Password recovery allows for configurable options (email password recovery or recovery using physical reset button).
5. SSH configuration option per user to allow shell or rsync only access.

Enhancements & Bug Fixes:

1. Fixes various rsync backup issues.
2. Fixes false error reports from FTP backups.
3. Fixes USB devices losing their names when updating from 6.2.x.
4. Fixes eSATA port on RN104.
5. Fixes issue where all SMB connections would be disconnected when making share access changes to any share.
6. Changed I/O handling to hopefully work better with SMR / Archive drives.
7. Fixes backup log emails sending the previous job's output.
8. Fixes SMB access issues on shares restriced to the default "users" group.
9. Fixes Bit Rot Protection alert messaging mechanism.
10. Fixes potential network buffer overrun with heavy traffic on RN102/104/2120.
11. Fixes long I/O stalls after snapshot deletion on systems with lots of data and many snapshots.
12. Prompts with confirmation before executing manual volume maintenance (defrag, scrub, balance).
13. Moved ssh key download under the ssh service (under settings).
14. Improved the email alerts settings.
15. Fix update image verification issue on some RN10x machines.
16. Disabled UAS mode for USB drives on RN10x and RN2120, since this was problematic with some drives.
17. Fixes network settings GUI on bonded interfaces.
18. Fixes packet loss on bonded interfaces when losing a link on RN2xx.
19. Fixes domain joining when specifiying an OU that contains spaces for the machine account.
20. Accepts IPv6 AFP connections.
21. Fixes hardware clock reset after updating from 6.2.x.
22. Fixes network memory allocation error on RN10x / 2120 when changing MTU.
23. Changed RN10x / RN2120 network LED behavior to match 6.2.x.
24. Always provide the admin user access to FTP shares.
25. Dynamically resizes RAID cache size as needed.
26. Fixes issue with RN10x / RN2120 where the system may not power off fully.
27. Allows network configuration without a gateway.
28. Displays critical kernel messages on LCD.
29. Fixes disabling guest access on shares.
30. Fixes potential crash when taking a snapshot while balance is running.
31. Fixes share quota display on SMB clients on new shares with no data.
32. Fixes external storage name map getting reset after formatting an external drive.
33. Mounts dirty NTFS filesystem read-only, instead of ignoring them.
34. Fixes rsync backup jobs where the destination system uses an old rsync version.
35. Shows external storage share capacity usage in UI Shares tab overview.
36. Fixes incremental backups to local NTFS or FAT32-formatted external drives.
37. Fixes premature timeouts on rsync backup jobs.

Deployment Notes / Limitations:

1. Wake on LAN (WOL) will not be supported on the ReadyNAS 4220 at this time using the 10GbE port. Use the 1GbE port for WOL.
2. There is no error message presented in the local admin GUI when the USB key is missing from the system for encrypted volumes. The LCD display will present a message that the USB key is missing.
3. If the USB key is missing for encrypted volumes, the power LED will blink for 10 minutes. If no USB key is plugged in within 10 minutes, the encrypted volume won't be mounted and will be inactive.
4. If a Flex-RAID volume has been expanded, the volume cannot be switched back to X-RAID mode..
5. If you wish to remove a USB storage device, you should first eject the drive in the local admin GUI before removing the USB device from the ReadyNAS to prevent errors on the file system of the USB device.
6. ReadyNAS 102, 104, and 2120 only support creating iSCSI LUNs 8TB and smaller.
7. ReadyNAS devices updated to ReadyNAS 6.4.1 can downgrade to 6.4.0 but cannot be downgraded to earlier version..
8. When initially upgrading your ReadyNAS to 6.4.1, a quota scan takes place during boot. This may cause the unit to take some time to do a scan, depending on your volume usage. Allow some time when restarting your ReadyNAS for the first time after upgrading.

How to update the firmware: