Memory stuff on WRT54G and Openwrt
August 13, 2006
This is yet another techie posting.
I was just wondering why do I have a /tmp partition on my wrt54g that is 7MB! I wanted to use this memory! Whatever’s written to /tmp will be erased on reboot. I wanted the information to survive a reboot! I wanted to increase the retainable memory on board the router!
I was googling around but I couldn’t find a solution. Then I found this… apparently 7MB is RAM (edited from Flash) memory and no matter what I do, I can’t keep the stuff on it. Oh well. 
Entry Filed under: Openwrt, Technology. .
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1.
db90h | August 28, 2008 at 4:38 am
That is RAM allocated to your /tmp partition, not FLASH, and its only really allocated if its used. So, even if it shows 7MB, that RAM won’t actually be allocated unless you put 7MB worth of crap in there.
2.
Dionis | August 28, 2008 at 9:15 pm
Oh, that’s right! Thank you
Wrote this post really long ago, didn’t realise that I put “flash” instead of RAM. Lemme update it.