As folks have pointed out, the A500 does not have USB mounting support (yet) but does seem to have support for MTP. I found details on how to mount the Xoom onto Ubuntu Linux
here. I have to assume these are the instructions that everyone is talking about above.
I am running 64 bit Ubuntu 10.10 (I unfortunately heard far too many dangerous things about 11.04 and it has become the only Ubuntu release I've not upgraded to). This instructions, modified for the Iconia A500, have worked for me. I've mounted and unmounted the device several times now.
I made some changes to the instructions. First my file is called /etc/udev/rules.d/51-honeycomb.rules. The entire file for me is:
ATTRS{idVendor}=="0502", ATTRS{idProduct}=="3341", ENV{ID_GPHOTO2}="1", ENV{GPHOTO2_DRIVER}="proprietary", ENV{ID_MEDIA_PLAYER}="1", ENV{ID_MTP_DEVICE}="1", MODE="0664", GROUP="audio"
I've made my mount point /media/iconia.
At this point I've not put the structure in fstab, but am mounting and unmounting manually with the commands:
mtpfs /media/xoom -o allow_other
and
fusermount -u /media/iconia
but, again, this is working for me.
My only question would be this: this gives me access to /mnt/sdcard on the Iconia tablet. How might I get access to /mnt/external_sd ?
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Doc Kinne
Somerville, MA