I see tftp in /usr/bin/  but I thought this was only a client and not a daemon.  I don't see it loaded when doing a ps ax or see an open port for tftpd when nmapping the PR1.  I will give it a try.

My goal is to use this tftp server dedicated only for PBX use and store a small amount of phone config files.  Keeping the files in /persistent/tftp is fine but placing them on the card would be better because I know some phone have large files, like the Polycom core SIP files.  Placing a seperate tftp server in a small business network is undesirable and this would work well.

However,  I have installed standard 2GB SD cards of the same make and model in both my IP04s and my PR1 and only the IP04 shows the SD card when I df in shell.   ??

Looking at what rc does I just tried to mount it in the PR1 and see this:
root@pr1:/etc> modprobe spi_mmc > /dev/null
modprobe: module spi_mmc not found in modules.dep

I just tested an old Grandstream 2000 I had laying around and placed the latest firmware in/persistent/tftp on my PR1.  It worked fine:

Jan  1 18:26:51 PR1 daemon.notice atftpd[2620]: Advanced Trivial FTP server started (0.7)
Jan  1 18:26:51 PR1 daemon.notice atftpd[2622]: Serving cfg000b8205561d to 172.26.1.75:34977
Jan  1 18:26:51 PR1 daemon.notice atftpd[2623]: Serving boot55b.bin to 172.26.1.75:34978
Jan  1 18:26:52 PR1 daemon.notice atftpd[2624]: Serving gxp2000b.bin to 172.26.1.75:34979
Jan  1 18:27:15 PR1 daemon.notice atftpd[2625]: Serving ring1.bin to 172.26.1.75:34980
Jan  1 18:27:16 PR1 daemon.notice atftpd[2626]: Serving ring2.bin to 172.26.1.75:34981
Jan  1 18:27:17 PR1 daemon.notice atftpd[2627]: Serving ring3.bin to 172.26.1.75:34982
Jan  1 18:28:05 PR1 daemon.notice atftpd[2628]: Serving cfg000b8205561d to 172.26.1.75:44610
Jan  1 18:28:05 PR1 daemon.notice atftpd[2629]: Serving boot55d.bin to 172.26.1.75:44611
Jan  1 18:28:09 PR1 daemon.notice atftpd[2630]: Serving gxp2000d.bin to 172.26.1.75:44612
Jan  1 18:29:03 PR1 daemon.notice atftpd[2631]: Serving ring1.bin to 172.26.1.75:44613
Jan  1 18:29:04 PR1 daemon.notice atftpd[2632]: Serving ring2.bin to 172.26.1.75:44614
Jan  1 18:29:04 PR1 daemon.notice atftpd[2633]: Serving ring3.bin to 172.26.1.75:44615
Jan  1 18:29:05 PR1 daemon.notice atftpd[2634]: Serving gxp2000.lpf to 172.26.1.75:44616
Jan  1 18:29:31 PR1 daemon.notice atftpd[2635]: Serving cfg000b8205561d to 172.26.1.75:6529
Jan  1 18:29:31 PR1 daemon.notice atftpd[2636]: Serving boot55e.bin to 172.26.1.75:6530
Jan  1 18:29:34 PR1 daemon.notice atftpd[2637]: Serving gxp2000e.bin to 172.26.1.75:6531
Jan  1 18:30:28 PR1 daemon.notice atftpd[2638]: Serving ring1.bin to 172.26.1.75:6532
Jan  1 18:30:29 PR1 daemon.notice atftpd[2639]: Serving ring2.bin to 172.26.1.75:6533
Jan  1 18:30:29 PR1 daemon.notice atftpd[2640]: Serving ring3.bin to 172.26.1.75:6534
Jan  1 18:30:29 PR1 daemon.notice atftpd[2641]: Serving gxp.lpf to 172.26.1.75:6535
Jan  1 18:31:04 PR1 daemon.notice atftpd[2642]: Serving cfg000b8205561d to 172.26.1.75:43947
Jan  1 18:31:04 PR1 daemon.notice atftpd[2643]: Serving boot55e.bin to 172.26.1.75:43948
Jan  1 18:31:04 PR1 daemon.notice atftpd[2644]: Serving gxp2000e.bin to 172.26.1.75:43949
Jan  1 18:31:06 PR1 daemon.notice atftpd[2645]: Serving ring1.bin to 172.26.1.75:43950
Jan  1 18:31:06 PR1 daemon.notice atftpd[2646]: Serving ring2.bin to 172.26.1.75:43951
Jan  1 18:31:06 PR1 daemon.notice atftpd[2647]: Serving ring3.bin to 172.26.1.75:43952
Jan  1 18:31:07 PR1 daemon.notice atftpd[2648]: Serving gxp.lpf to 172.26.1.75:43953

Oh and Yes my PR1 clock is wrong.  It's still in a test mode and NTP is giving me some issues.  I think it's my NTP server not the PR1.  :-)

Will you release this as a down loadable img file or do I need to get source and compile?  (thanks)