I’m wanting to update the current software on my Western Digital My Book Live device I bought back in 2012. The software is no longer supported so I was looking for some third party/open source OS to flash on it.
Being realistic I’m going to say it’s not worth it, the SoC (AppliedMicro APM82181) is way to slow to be usable for any recent version of Samba (ksmb is still quite unstable). Last time I play around with it I think it managed to do 20-30mbyte/s and that was without encryption enabled. NFS might be doable but I’ve never managed to get NFS working on OpenWrt. Use the HDD(s) in another unit and recycle it, most ARM-based routers will even runs circles around it.
That’s likely not going to happen on the device. Just get a small ARM-board and use a USB-connected drive or a NAS-case (and/or SATA-adapter/HAT). It’ll save you a lot of time and headache.