Installing new U-Boot for Pogoplug V3 - from Arch u-boot (1 reply)

I hope this is the right place to post this - I'm mostly concerned about U-Boot issues...

I have an old Pogo-Classic (B01) running ArchLinux that I installed years ago. It was my first Pogoplug (almost my first linux experience) - I installed Samba, got it booting from a 3TB SATA drive, and used the rest of the drive as a server for my home network (mostly without problems, kind of miraculous given all the hoops I had to stumble through with all the Oxnas/Arch/Deprecated stuff). I pretty much never touched it out of fear it would break down on me, hence:

[root@alarm hd-sda4]# uname -a
Linux alarm 2.6.31.6_SMP_820 #6 SMP Thu Jun 14 19:49:57 CDT 2012 armv6l GNU/Linux

(No idea what version of U-Boot it's running)

Now I have a Pogo V4 running Debian and serving my network and am in the process of getting 4(!) other Pogos up and running, and I thought it might be time to update the old Pogo Classic and switch it to Debian. I don't currently have either Serial access or Netconsole running, so I want to be careful about how I do things so that I don't reboot and immediately end up with a brick.

Is this the right order in which I should proceed?:

1. Try to get NetConsole working (I've started working on this - is there any way to test nc without rebooting?)

2. Update U-boot as instructed in this thread, maintaining boot-from-SATA

3. Install the Debian rootfs & kernel onto the SATA drive boot partition (same version and process as with a Mobile or V4 or E02, right?)

Thanks for any guidance...