Problem increasing root partition size (debian)

[marshaul]

OK, so I bought a bigger micro SD card, and decided to clone my existing microSD card onto it.

I used

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dd if=/dev/mmcb1k0 of=/dev/uba bs=4096 conv=notrunc,noerror (/dev/uba being the microSD card reader I have plugged into the USB port).

This being finished, I used fdsik to delete the second partition on /dev/uba, and recreated it to be as large as the remaining space on my (16 GB) microSD card.

I then ran

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resize2fs /dev/uba2 to complete the job.

Regardless, upon booting onto my newly cloned drive and running

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df -h, the drive appears as under 2 GB (and completely full).

I imagine this is because of how booting/mounting from the SD card is handled, but I don't really understand what's going on at this point.

What do I have to do to make this partition appear the proper size (>15 GB)? I basically can't do anything with the microSD card I bought with the OLinuXino, because it's entirely full for all intents and purposes (came that way, annoyingly).

[marshaul]

OK, for some reason resize2fs only works in this circumstance where the partition is mounted.

Tried it again while mounted and it did the "on-line resize" thing. That time it took.