**** BEGIN LOGGING AT Fri Jun 14 02:59:58 2019 Jun 14 07:32:38 zmatt: thanks for this, it is ineresting the debug reports a version that supports cp14. Jun 14 07:33:22 zmatt: I will look at adding memory mapped support to RTEMS's libdebugger ARM backend. **** BEGIN LOGGING AT Fri Jun 14 09:31:24 2019 Jun 14 11:07:04 hello Jun 14 11:22:21 hello Jun 14 11:26:31 * tbr turns the radio on Jun 14 15:11:25 i am new to beaglebone black wireless board. Jun 14 15:11:39 anyone know how to reset root and debian passwd Jun 14 15:12:01 without reload os? Jun 14 15:26:11 newbie: I think the only way to do it would be to put another linux image on an SD card, boot that and mount the eMMC (internal drive) and modify login stuff that way. Jun 14 15:26:45 newbie: I don't remember entirely how you do it, I can look it up if you need me to. Jun 14 15:27:23 newbie: I imagine you could look it up yourself though. information for Debian or Ubuntu would work. Jun 14 15:27:36 yes please. I am stuck since I forgot both of the passwd for root and debian Jun 14 15:28:11 I looked on https://beagleboard.org/latest-images Jun 14 15:28:25 it has 3 version of firmware Jun 14 15:28:55 I am not sure which one I can flash on eMMC Jun 14 15:29:23 You probably don't want to flash it to the eMMC ....or do you not care about anything that is on it currently? Jun 14 15:30:15 If you don't care about losing what's on it, then downloading a flasher image would be the most simple solution. Jun 14 15:30:17 Yeah, I got this board to learn. I have nothing on it Jun 14 15:31:01 Flashing is fairly simple after you have managed to write the image to an SD card Jun 14 15:31:40 What's the OS you are on currently? Jun 14 15:33:35 If windows, then downloading Rufus at https://rufus.ie/downloads/ is probably the most simple solution for writing the image to an SD card. Jun 14 15:34:17 let I check. I have not pay attention on the os version Jun 14 15:34:51 so when I got the board Jun 14 15:35:00 the os is on the eMMC Jun 14 15:35:41 newbie: I am talking about what OS are you on now, on the machine you are using to communicate via IRC? Jun 14 15:36:43 Oh I am using macOS 10.14.4 Jun 14 15:38:01 newbie: Ok, I think this web article will help you get through flashing the image then: http://osxdaily.com/2018/04/18/write-image-file-sd-card-dd-command-line/ Jun 14 15:38:17 newbie: Writing the image to the SD card, that is. Jun 14 15:38:53 outrageous_: please don't recommend dd, use etcher Jun 14 15:39:36 zmatt: Ok. I prefer not using etcher myself, but I get your point. Jun 14 15:40:12 newbie: the image under ""Flasher" Debian images" is one that will automatically flash to eMMC (when you write it to sd card and boot the BBB from it) Jun 14 15:41:03 i.e. "Debian 9.5 2018-10-07 4GB eMMC IoT Flasher" Jun 14 15:42:04 Thanks a lot outrageous_ Jun 14 15:42:31 I am downloading the firmware Jun 14 15:42:45 newbie: https://www.balena.io/etcher/ you can use this to write the image to sd card Jun 14 15:43:30 (I strongly recommend against using the instructions that outrageous_ linked to) Jun 14 15:47:32 newbie: You're welcome. And yes, go by what zmatt said :) Jun 14 16:45:25 It worked. Thanks a lot outrageous_ Jun 14 16:47:11 I am be able to boot it from sd card and I also flashed it in eMMC. Jun 14 16:48:32 Thanks @zmatt aslo. Etcher is much easier to use Jun 15 01:51:11 kiwichris: how does it determine that? Jun 15 01:55:22 kiwichris: there's a cp15 register that indicates the debug model, and it indicates that the memory-mapped debug model and memory-mapped trace model is used Jun 15 01:57:10 so in principle you can autodetect whether to use cp14 or memory-mapped, and in the latter case there's also a register that should contain the address of the debug registers (but like I said, TI neglected to configure those correctly) Jun 15 02:12:11 although I think the cortex-A8 might be the only processor that uses it? not sure why. I guess they did it to save die area, since the memory-mapped interface is already there for JTAG debugging anyway Jun 15 02:18:33 kiwichris: btw, the hack I mentioned to enable DBGEN by self-jtagging using the pin config registers: https://github.com/dutchanddutch/jbang **** ENDING LOGGING AT Sat Jun 15 02:59:57 2019