From NAS-Central Buffalo - The Linkstation Wiki
Revision as of 09:09, 9 July 2006 by Jkk (Talk)
Power LED (green)
||Bootup, prior to Flash ROM update, and ppc_uartd starting.
||Shutdown timer has been activated. Box will shutdown soon.
If ppc_uartd does not start for some reason (or is started late due to hardware/software issues), the Power LED will continue blinking. After five minutes the DIAG LED will continuously blink 6 times (hard drive failure) and then shut the box down.
||1000BASE-T (Kurobox HG only)
DISK FULL LED (red)
||Hard drive full
||Writing to Flash ROM
DIAG LED (red)
|3 times blink
||Partition warning: /dev/hda3 is not mounted on /mnt. You can ignore it.
|4 times blink
||Problem with the cooling fan - probably rotor jammed.
|5 times blink
||Problem with Flash ROM*
|6 times blink
||Hard drive not found, or ppc_uartd not running.
|7 times blink
||Problem with the RAM, Ethernet Controller, or IDE Host Controller.
|blink many times
||Writing to Flash ROM.
* It may be possible to recover from a Flash ROM error by pulling out the power cord and trying to boot again the next day.
Source:  with translation help from nobuakiy.
Notes: Users have reported problems when the drive already has a Linux partition on it-- the DIAG LED blinks 6 times. The solution appears to be to simply to reformat the drive.