Flash full by acident. Can't recover flash.

[lzerman]

I screwed up! Sent output to NUL in /root and not /dev/nul. I RM'ed NUL file but it did not recover storage even after a sync or firstboot / sync / reboot. Here is the df:
Filesystem 1K-blocks Used Available Use% Mounted on
/dev/root 7936 7936 0 100% /rom
tmpfs 29916 80 29836 0% /tmp
/dev/mtdblock6 6720 428 6292 6% /overlay
overlayfs:/overlay 6720 428 6292 6% /
tmpfs 512 0 512 0% /dev
/dev/mmcblk0p1 7484816 33720 7051176 0% /mnt/mmcblk0p1

How can I recover the flash? I am on a Omega2s dev board with emm flash.

Thank you!

[Lazar Demin]

@lzerman Try using the bootloader to reinstall the firmware: http://docs.onion.io/omega2-docs/Firmware-Flashing-Web-Recovery.html