ReadyNAS OS V6.4.2 Release Notes:

Download Link:

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

Enhancements & Bug Fixes:

1. Security updates for Samba, OpenSSL, and Linux kernel. (including CVE-2016-0728)
2. Fixed erroneous disk LED blinking on RN3220 and RN4220.
3. Fixed backup job timestamp comparison error that caused incremental backup jobs to back up too much data.
4. Fixed that a backup job error report was issued when encountering junctions on remote SMB filesystems, even though there was no error.
5. Fixed that the wrong page opened after clicking on the NAS UPnP icon in some builds of Windows 10.
6. No longer sends invalid quota alerts for USB drives.
7. Now recognizes BTRFS filesystems in USB drives.
8. Fixed a potential hang on RN104 systems due to a race condition when using the CPU's RAID5 offload engine.
9. Fixed that rsync backup jobs failed when the destination system used a version of rsync older than the one on the ReadyNAS.
10. Fixed that on RN102, RN104, and RN2120 systems there was an immediate reboot instead of a proper shutdown when WoL and jumbo frames were configured.
11. Fixed a network performance problem on RN102, RN104, and RN2120 systems that were configured with jumbo frames and were not connected to the network until after booting.
12. Fixed a problem with RN102, RN104, and RN2120 system automatic power on behavior. After a power loss when the last system state was powered on, the system did not power on.
13. Fixed the failure of SMB to access home shares on accounts that were created before a hostname change.
14. Improved RN2120's stability with large transfers.
15. Disabled OpenSSH client roaming. (CVE-2016-0777, CVE-2016-0778)
16. Fixed an issue where deleting the default volume on firmware versions older than 6.4.0 could cause SMB authentication failures.
17. Fixed an issue where the boot device could become corrupted after a firmware update causing the NAS to be unable to boot on the Intel Desktop units (mount_block_root)

Deployment Notes / Limitations:

1. Antivirus may impact performance.
2. 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.
3. 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.
4. 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.
5. If a Flex-RAID volume has been expanded, the volume cannot be switched back to X-RAID mode..
6. 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.
7. ReadyNAS 102, 104, and 2120 only support creating iSCSI LUNs 8TB and smaller.
8. ReadyNAS devices updated to ReadyNAS 6.4.2 can downgrade to 6.4.0 but cannot be downgraded to earlier version..