I was asked to report back on my experience running a 128 GB card on the BBB (Rev.C)
Seems to work fine. I have not filled the card or run it for long periods, yet.
Image loaded/used: bone-debian-8.2-console-armhf-2015-11-29-2gb.img
Installed on 128 GB card, checked to see if ran on BBB as installed (untouched).
df reported 1.7G, as expected.
Mounted on Linux Desktop machine, used Gparted to expand partition to 122 GB.
Moved back to BBB, rebooted:
Debian GNU/Linux 8 beaglebone ttyS0
BeagleBoard.org Debian Image 2015-11-29
Linux beaglebone 4.1.13-ti-r34 #1 SMP PREEMPT Wed Nov 25 23:49:49 UTC 2015 armv7l
root@beaglebone:~# df -h
Filesystem Size Used Avail Use% Mounted on
udev 10M 0 10M 0% /dev
tmpfs 98M 8.3M 90M 9% /run
/dev/mmcblk0p1 118G 329M 113G 1% /
tmpfs 245M 0 245M 0% /dev/shm
tmpfs 5.0M 0 5.0M 0% /run/lock
tmpfs 245M 0 245M 0% /sys/fs/cgroup
root@beaglebone:~#