DSM-G600, DNS-3xx and NSA-220 Hack Forum

And nzbget is working perfectly (check and repair).

Since I did not see this way to do things I thought I'd write it there in case some people are stuck like I was.

What I want of my DNS323:
* minidlna server (to my samsung TV), and i want it to work with inotify, I don't want to re-scan everything each time I add a video.
* download in newsgroup (I want it to download from newgroup, check, repair, unrar), I just want to have to move films from nzbget/dst to my mnidlna shared directory. (nzbget + nzbgetweb)
* samba, of course
* disks able to spin-out

I don't want to "go native" since I have no serial or anything to restore the nas if things go wrong. I don't wan't to loose my data too.

So, what I did :
* install http://code.google.com/p/alt-f/ (the reloaded package, not the firmware) and test it works (it's got the nice features in it's fun_plug to disable itself on first boot, so even if it crashed, the next boot you do, you go back to stock firmware). If alt-f cannot work with your DNS, you can stop here ... :-/
* if this works change the parameter in ALT-F in order to boot in it each time, or chmod +x it back again after a successful startup (it's nice to have this kind of security).
* prepare a chroot environment on usb stick: I took a debian squeeze armel (since alt-F uses a recent kernel, this works just fine)
* make the chroot environment OK (follow more or less http://dns323.kood.org/forum/viewtopic.php?id=4330)
* edit alt-f's user startup script in /etc/init.d for it to mount /dev/md0, proc, sys, etc into the chroot linux, and make it start/stop your services into the chrooted environment. I did it with something like :

In "start" in /etc/init.d/S99_user, call /dev/chroot_start
"/dev/sdc1/chroot_start:"

#!/bin/sh
# mount things
chroot /mnt/sdc1/squeeze /root/start

"CHROOT: /root/start"

#!/bin/sh
/root/services start

"CHROOT: /root/services"

#!/bin/sh
/etc/init.d/samba $1
/etc/init.d/minidlna $1
/etc/init.d/lighttpd $1
/etc/init.d/nzbget $1
#add there all your services

I'll let you guess for the stop.

I'm sure there is a way to have less scritps, but since I don't know how the chroot command behaves with arguments to the command, I didn't even try ;-)

I added a "/mnt/sdc1/chroot_login" too since ssh is ran by alt-f, I have to go into the chrooted debian each time (could add it to some .bashrc I guess.

Now that this is in place, all that left is to install your services like in any other debian. And doing it that way, armel + recent kernel I got no problem with minidlna + inotify (nio package, i compiled it), and I got nzbget (compiled too) to work OK with checks and repair.

Be carefull to put nzbget's "nzb" and "queue" directory in the flash disk if you want your disks to be able to rest.

I only start the necessary services (I don't start all runlevels) so I think I got the memory overhead down to the minimum (even if there is probably unused features of alt-f that use some). When nzget is not downloading or anything, I have my 16.5 mo/s reading (I don't think this device can go any faster), so everything's ok.

Last edited by gegefr (2010-09-02 11:36:03)