KGPE-D16: coreboot-4.5 stuck in boot loop. Help on getting the system to boot or flash newer version
Hello and thank you in advance for your time.
I recently bought a KGPE-D16 motherboard with a single AMD Opeteron 8262SE and coreboot installed. I bought from another supplier 4 memory sticks Samsung 8GB (M393B1K70DH0-YK0) that per this thread[1] should work with coreboot. I am able to start the assembled system and to get serial output. According to the logs, coreboot first does the initialisation and training of the memory and then start working on the PCIs. At one point in the boot sequence, I get the following message:
Loaded segments BS: BS_PAYLOAD_LOAD times (us): entry 0 run 80561 exit 0 POST: 0x7b Jumping to boot code at 000ff06e(b7cc1000) POST: 0xf8 CPU0: stack: 00150000 - 00151000, lowest used address 001509e0, stack used: 1568 bytes entry = 0x000ff06e lb_start = 0x00100000 lb_size = 0x00116270 buffer = 0xbfdd3000
Then it stalls for like 20-30 seconds and the booting process restarts from the beginning. I had considered different options in order to boot and I would like to know if someone would have any recommendations. Right now my priority is to get the system up and working. I can worry about installing coreboot later, but having it now is for sure a plus: 1) Buy a new chip with the original ASUS BIOS in order to boot the system. 2) Externally flash the chip I have right now with a newer version of coreboot. I probably have enough things at home to flash it, but I have not found information from ASUS. In coreboot there is some information but very general and not enough for my knowledge. As far as I have read from flashrom, I should be able to flash it using a Raspberry Pi or a BeagleBone Black, but KGPE-D16 is not marked as supported and I don't know which model is the BIOS chip to check if it is supported. 3) The moderboard datasheet has a section called: "Force BIOS recovery setting", which says that in order to flash the proprietary BIOS, it is as simple as changing a jumper an inserting an USB stick. I would have already done it if I would not be reluctant to believe that it is that simple.
Which are your thoughts about this ideas? Any other one that would be simpler and would let me boot the full system?
Thank you very much, Pablo.
NOTE: I have tried with the 4 sticks in the orange slots, the 4 sticks in the 4 further DIMMs from the CPU (2 orange, 2 black) and those configurations both 1.35 and 1.5V. Logs are slightly different, in the training section, but the problem while booting remains. A USB stick with Debian Installer has been plugged-in during since boot process begins.
[1] https://mail.coreboot.org/pipermail/coreboot/2017-February/083151.h tml
That method of emergency recovery with a USB stick has already been wiped out by installing coreboot.
-Matt
On Mon, Apr 29, 2019 at 4:09 PM Pablo Correa Gómez ablocorrea@hotmail.com wrote:
Hello and thank you in advance for your time.
I recently bought a KGPE-D16 motherboard with a single AMD Opeteron 8262SE and coreboot installed. I bought from another supplier 4 memory sticks Samsung 8GB (M393B1K70DH0-YK0) that per this thread[1] should work with coreboot. I am able to start the assembled system and to get serial output. According to the logs, coreboot first does the initialisation and training of the memory and then start working on the PCIs. At one point in the boot sequence, I get the following message:
Loaded segments BS: BS_PAYLOAD_LOAD times (us): entry 0 run 80561 exit 0 POST: 0x7b Jumping to boot code at 000ff06e(b7cc1000) POST: 0xf8 CPU0: stack: 00150000 - 00151000, lowest used address 001509e0, stack used: 1568 bytes entry = 0x000ff06e lb_start = 0x00100000 lb_size = 0x00116270 buffer = 0xbfdd3000
Then it stalls for like 20-30 seconds and the booting process restarts from the beginning. I had considered different options in order to boot and I would like to know if someone would have any recommendations. Right now my priority is to get the system up and working. I can worry about installing coreboot later, but having it now is for sure a plus:
- Buy a new chip with the original ASUS BIOS in order to boot the
system. 2) Externally flash the chip I have right now with a newer version of coreboot. I probably have enough things at home to flash it, but I have not found information from ASUS. In coreboot there is some information but very general and not enough for my knowledge. As far as I have read from flashrom, I should be able to flash it using a Raspberry Pi or a BeagleBone Black, but KGPE-D16 is not marked as supported and I don't know which model is the BIOS chip to check if it is supported. 3) The moderboard datasheet has a section called: "Force BIOS recovery setting", which says that in order to flash the proprietary BIOS, it is as simple as changing a jumper an inserting an USB stick. I would have already done it if I would not be reluctant to believe that it is that simple.
Which are your thoughts about this ideas? Any other one that would be simpler and would let me boot the full system?
Thank you very much, Pablo.
NOTE: I have tried with the 4 sticks in the orange slots, the 4 sticks in the 4 further DIMMs from the CPU (2 orange, 2 black) and those configurations both 1.35 and 1.5V. Logs are slightly different, in the training section, but the problem while booting remains. A USB stick with Debian Installer has been plugged-in during since boot process begins.
[1] https://mail.coreboot.org/pipermail/coreboot/2017-February/083151.h tml https://mail.coreboot.org/pipermail/coreboot/2017-February/083151.html _______________________________________________ coreboot mailing list -- coreboot@coreboot.org To unsubscribe send an email to coreboot-leave@coreboot.org
Hi there Pablo!
- Buy a new chip with the original ASUS BIOS in order to
boot the system.
These pre-flashed BIOS chips are overpriced. You could download the latest BIOS from ASUS website and flash it directly to your existing BIOS chip using another computer and flashrom-supported hardware flasher.
- Externally flash the chip I have right now with a newer version
of coreboot.
RPi is a bit of an overkill: the cheapest flashrom supported programmer is USB CH341A which costs just a couple of dollars and perhaps is easier to use (since you don't have to worry about the configuration of onboard Linux and some other things). Check out the last part of this article - http://dangerousprototypes.com/docs/Flashing_a_BIOS_chip_with_Bus_Pirate - for more CH341A + flashrom instructions. If your BIOS chip is supported by flashrom, hopefully you could easily flash it following these instructions. The only difference is that the BIOS chip of KGPE-D16 seems to be a DIP-8 instead of SOIC-8, so you could insert this DIP-8 chip right in CH341A and SOIC-8 test clip isn't needed of course. Although there are DIP-8 test clips, if your chip is socketed - they aren't needed.
- The moderboard datasheet has a section called:
"Force BIOS recovery setting"
Of course this method relies on the functionality of proprietary UEFI, like Matt said.
Best regards, Mike Banon
I had to do something similar with a KCMA-D8 motherboard, but I had an old motherboard around that let me hotswap the BIOS chip, and I was able to use flashrom from a Linux LiveUSB to flash the ASUS vendor BIOS to the chip, while socketed in another motherboard.
After the flash, I powered off the computer, took the BIOS chip out, tossed it into the KCMA-D8 motherboard, and was good to go.
For specific beginner-friendly steps:
1. Boot an old motherboard (something without Intel ME is more likely to succeed; I have an AMD 700/800 Phenom II motherboard for this) with it's BIOS chip into a Linux LiveUSB (like Lubuntu) 2. Install flashrom (apt/zypper/dnf/package manager should be fine, but worst-case if the chip isn't recognized, you'll need to compile flashrom from source which has additional dependencies and steps) 3. Download/copy the vendor BIOS ROM file somewhere 4. Test if flashrom can read/write to the original BIOS chip without problem (dump the chip contents and attempt to re-write it back) 5. With the computer/motherboard still powered, remove its BIOS chip (with usual anti-ESD measures; use a chip puller preferably but you can also "gently" wiggle it out with your fingers) 6. Insert a different BIOS chip that you want flashed into the socket 7. Use flashrom to write to that BIOS chip (internal flash) 8. If flashrom succeeds, power off the computer/motherboard 9. Remove the flashed BIOS chip from that computer/motherboard, and insert it into whatever other motherboard you were trying to fix 10. Re-insert the original BIOS chip into the flasher motherboard
On Tue, 2019-04-30 at 18:02 +0300, Mike Banon wrote:
These pre-flashed BIOS chips are overpriced. You could download the latest BIOS from ASUS website and flash it directly to your existing BIOS chip using another computer and flashrom-supported hardware flasher. _______________________________________________ coreboot mailing list -- coreboot@coreboot.org To unsubscribe send an email to coreboot-leave@coreboot.org
While I think it's great that it worked, I'd recommend flashing with a programmer before hotswapping the bios chip.
You could work through compiling a fresh copy of coreboot on another computer, or if someone knows how to extract the bios image from an asus download you could try restoring that.
-Matt
On Tue, Apr 30, 2019 at 11:50 AM Sean Lynn Rhone espionage724@posteo.net wrote:
I had to do something similar with a KCMA-D8 motherboard, but I had an old motherboard around that let me hotswap the BIOS chip, and I was able to use flashrom from a Linux LiveUSB to flash the ASUS vendor BIOS to the chip, while socketed in another motherboard.
After the flash, I powered off the computer, took the BIOS chip out, tossed it into the KCMA-D8 motherboard, and was good to go.
For specific beginner-friendly steps:
- Boot an old motherboard (something without Intel ME is more likely
to succeed; I have an AMD 700/800 Phenom II motherboard for this) with it's BIOS chip into a Linux LiveUSB (like Lubuntu) 2. Install flashrom (apt/zypper/dnf/package manager should be fine, but worst-case if the chip isn't recognized, you'll need to compile flashrom from source which has additional dependencies and steps) 3. Download/copy the vendor BIOS ROM file somewhere 4. Test if flashrom can read/write to the original BIOS chip without problem (dump the chip contents and attempt to re-write it back) 5. With the computer/motherboard still powered, remove its BIOS chip (with usual anti-ESD measures; use a chip puller preferably but you can also "gently" wiggle it out with your fingers) 6. Insert a different BIOS chip that you want flashed into the socket 7. Use flashrom to write to that BIOS chip (internal flash) 8. If flashrom succeeds, power off the computer/motherboard 9. Remove the flashed BIOS chip from that computer/motherboard, and insert it into whatever other motherboard you were trying to fix 10. Re-insert the original BIOS chip into the flasher motherboard
On Tue, 2019-04-30 at 18:02 +0300, Mike Banon wrote:
These pre-flashed BIOS chips are overpriced. You could download the latest BIOS from ASUS website and flash it directly to your existing BIOS chip using another computer and flashrom-supported hardware flasher. _______________________________________________ coreboot mailing list -- coreboot@coreboot.org To unsubscribe send an email to coreboot-leave@coreboot.org
coreboot mailing list -- coreboot@coreboot.org To unsubscribe send an email to coreboot-leave@coreboot.org
Thank you all for your advice. I already have a BBB, so I will probably end up using that. I believe with all this help I will be able to work it out and I know some things that I should not do. I will answer once I have been able to fix it.
Regards, Pablo.
On mar, 2019-04-30 at 14:05 -0400, Matt B wrote:
While I think it's great that it worked, I'd recommend flashing with a programmer before hotswapping the bios chip.
You could work through compiling a fresh copy of coreboot on another computer, or if someone knows how to extract the bios image from an asus download you could try restoring that.
-Matt
On Tue, Apr 30, 2019 at 11:50 AM Sean Lynn Rhone <espionage724@posteo .net> wrote:
I had to do something similar with a KCMA-D8 motherboard, but I had an old motherboard around that let me hotswap the BIOS chip, and I was able to use flashrom from a Linux LiveUSB to flash the ASUS vendor BIOS to the chip, while socketed in another motherboard.
After the flash, I powered off the computer, took the BIOS chip out, tossed it into the KCMA-D8 motherboard, and was good to go.
For specific beginner-friendly steps:
- Boot an old motherboard (something without Intel ME is more
likely to succeed; I have an AMD 700/800 Phenom II motherboard for this) with it's BIOS chip into a Linux LiveUSB (like Lubuntu) 2. Install flashrom (apt/zypper/dnf/package manager should be fine, but worst-case if the chip isn't recognized, you'll need to compile flashrom from source which has additional dependencies and steps) 3. Download/copy the vendor BIOS ROM file somewhere 4. Test if flashrom can read/write to the original BIOS chip without problem (dump the chip contents and attempt to re-write it back) 5. With the computer/motherboard still powered, remove its BIOS chip (with usual anti-ESD measures; use a chip puller preferably but you can also "gently" wiggle it out with your fingers) 6. Insert a different BIOS chip that you want flashed into the socket 7. Use flashrom to write to that BIOS chip (internal flash) 8. If flashrom succeeds, power off the computer/motherboard 9. Remove the flashed BIOS chip from that computer/motherboard, and insert it into whatever other motherboard you were trying to fix 10. Re-insert the original BIOS chip into the flasher motherboard
On Tue, 2019-04-30 at 18:02 +0300, Mike Banon wrote:
These pre-flashed BIOS chips are overpriced. You could download
the
latest BIOS from ASUS website and flash it directly to your
existing
BIOS chip using another computer and flashrom-supported hardware flasher. _______________________________________________ coreboot mailing list -- coreboot@coreboot.org To unsubscribe send an email to coreboot-leave@coreboot.org
coreboot mailing list -- coreboot@coreboot.org To unsubscribe send an email to coreboot-leave@coreboot.org
coreboot mailing list -- coreboot@coreboot.org To unsubscribe send an email to coreboot-leave@coreboot.org
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Matt B -
Mike Banon -
Pablo Correa Gómez -
Sean Lynn Rhone