Compiled trx file won't fit into flash

[cj6666]

Hi,

Been playing around trying to compiled my own trx file. Using the latest openwrt and including the necessary drivers (usb audio, etc) and programs (mpc, mpd, etc), the resulting file always larger than 4MB.

Does building the component into packages and then opkg them in saves space than compile everything in?

I don't understand how people can include everything and still fit into the 4MB flash memory. What's the secret?

Thanks, CJ

[mightyohm]

CJ,

I haven't seen this before, but then again I have never tried to compile all packages into the kernel, and also my most recent experience compiling OpenWrt is with a rather old version of Kamikaze.

I suspect that the issue is that the newest version of mpd has some very large dependencies, including glib, and these are causing you to exceed the 4MB limit. If you compile the packages as opkg files, at least you can see the relative sizes of the packages.

ilinux has compiled the latest mpd and may be able to help you with the size problem. I'm not sure what he did to get the size under control, but I would ask on this thread: viewtopic.php?f=2&t=117

Good luck.

[cj6666]

Thanks Jeff, for the reply and the effort sharing such fun project with us.
I'll ask ilinux about this problem, CJ

[ilinux]

I've seen this problem,

Thanks! I'm build a new image wrtradio v0.2 with an older mpd and I will link into forum when ready.


By Ilinux

[ilinux]

Try the wrtradio firmware 0.3 is only 2.1 MB

[jeroen94704]

Alternatively, you can install packages that don't fit on the router's flash to an external USB drive. That's how I overcame the 4 MB size-limit. This does not require the router to boot from USB, but you do need to set the LD_LIBRARY_PATH variable to point to the /usb/usr/lib and /usb/lib directories, or MPD (and other apps that need them, presumably) won't be able to find the libraries installed there.

Hope this helps, let me know if you getting stuck.

Jeroen