You might want to change your kernel command line to  have root set to /dev/sdb2 rootwait

Works for me, However I just replaced the internal 2 gig micro sd with an 8 and boot 2.6.38 and
a rootfs/kernel that I have running on the guru/pogo plugs. Keeps um all in sync.

I have noticed that anything i/o intensive  when you have a usb device as a root device will cause
journel errors and remounts. In my case, I have my my root on microsd and 1 atsc and 1 dvb-s
receiver all on the usb bus. using 2 atsc cards and the microsd for root works great, using 1 dvb-s and
root via microsd causes a remount of the card to ro and missing data.

So its really a limitation of usb that causes this whole mess.

If I use the esata for root, then i can happily use 2 dvbs tuners and no forced remounts happen,no corrupting of the card.

My dream/guru/pogoplug v2 are running 2.6.38-rc8 with the patches from your 2.6.37.x kernel.

Looks like your missing the v4l module and the pvrusb2 module...Are you running a custom kernel..?

Just wanted to make  sure in my testing and reading That the mmc driver in 2.6.30-rc1 from the orion git does not work....?

you tried to install the x86 version, the only armel  based version is for the nokia 770..and im sure it wont work ither