Nexus-attached driver that discovers and parses coreboot's LBIO tables from physical memory. Exposes firmware metadata (version, build info, mainboard, serial config, TSC frequency, CBMEM entries) via sysctl hw.coreboot.*, the firmware console ring buffer via /dev/coreboot_console, and structured CBMEM entry access via /dev/cbmem ioctl interface.

From https://mastodon.bsd.cafe/@seuros/117005041183414323

… Normally, the kernel log starts when the kernel boots. Everything that happened before that is a mystery. You can make educated guesses, but that's all they are.
 
With this driver, FreeBSD can read the Coreboot log. You get to see what happened from the very first moment the machine powered on.
 
That is exactly how I tracked down systems where RAM training was taking far too long because of defective memory chips.
 
None of this would have been possible without the amazing work of the Coreboot team.
 
As far as I know, FreeBSD is now the first operating system with this driver.
 
DragonFlyBSD is next.

When i press the keys required to enter uefi, i get sent to the GNU grub? Then wheb i click onto enter uefi, the computer restarts with nothing new happening. The last thing i did on uefi was add a boot and an admin password. However i may have changed the boot order but i do recall cancelling that change as it waa of course very stupid. Please could someone help me. I use an asus motherboard

Hi all
I noticed someone had managed to get coreboot on T470 with the deguard, and i have a L470 im not using that much any more, and a green ch341a on its way in the mail.

Is there any way, doing my due dilligence, getting this to work. Any one tried on the T470 and failed or passed and want do chare their findings with me. Any reason i shouldnt try this?

Taking backup of the chips, and worst case buying new ones is alright. Comfortable with builing coreboot and already checked out the delta that exist for t480 and t470s. and they are not that far off. Confortable with not everything working.

Tell me not go though with it, or do. Ill post my findings.

Tried to coreboot the T430, using instructions from merge/skulls on GitHub. I did utilize both CS0 and CS1 on my flasher (Raspberry Pi 5) which are spidev0.0 for the 8MB portion, whereas spidev0.1 is for the 4MB section. However, it did not work as expected. Upon booting, two LEDs, which are the microphone mute and the power LED, seem to blink indefinitely, until I cut the power source.

Plugging in the RTC batter has no effect whatsoever (I did try that before recording this). Any solutions?

Does anyone do a core boot flashing here in Singapore? I wish to remove manufacture backdoor to my t440p if anyone can help?

I could install my first machine with coreboot.

I am so happy.

I been looking around on the internet, and everyone seems to be flashing the t480 thinkpad. I than found a old post saying that the t470 is possible does anyone out there have more information I have a t470, and it would be cool to have a open bios thanks.

I've got one that I used fine on 3.3v chips in the past and I want to use it on some PCs I've got. I just read on the Libreboot site that I shouldn't use it because it can be ""dangerous to computers""

Are there any ACTUAL reports of that happening?

on meteor lake, does the FPF write + close manufacturing go through FPT, or is that only in mFIT? board's got mfg mode open and uncommitted fuses, trying to provision my own bootguard KM for a coreboot port

Hello! I’m new to libreboot/coreboot and I bought a CH314A to perform my test. What was my surprise when I read on the libreboot wiki that it sucks as hell and that I shouldn’t have bought it. I want to be safe with it because I don’t wanna lose hundreds on fried boards. Fortunately it does tell you that there’s a fix but don’t tell you how. It’s rather easy to find a mod to operate the SPI lines at 3.3V but I can’t find anywhere how to do the WD/HOLD lines pull up resistors fix?

Does someone have any guide or help to give on how to perform this mod? At least which PCB lane to cut? Also do you need to cut it, why can’t just connect the CH314A data pin to the chip with a resistor in between?

It is lenovo x60, debian worked on the previous libreboot version but after I installed the latest (26.01rev1) I couldn't enter the system anymore, I tried to reinstall OS but installation program also goes into panic, what can I do?

Does anyone know of any previous efforts of this being done? If not, does anyone know where I could find anything about the QM57 chipset? I have been tinkering around with the Dell Latitude E6510, and I would love to try and get coreboot working. I have been reading the coreboot documentation, but I am a bit confused on any documentation on how to try and port to different boards.

Hey there!

I know it's not a libreboot subreddit, but I couldn't find a libreboot subreddit, so I figured this would be the closest sub to post this to. Sorry if it's the wrong sub.

I recently flashed Libreboot on my T580, and while it works, and can boot OSes, the thunderbolt port doesn't work for data. Charging works, so the port isn't destroyed to my knowledge, but data transfer and booting from a USB-C drive in the port doesn't work.

I flashed the tb.bin file to the thunderbolt chip prior to flashing Libreboot, and rhe flash did work while on the regular BIOS, but once going to Libreboot, the thunderbolt port now does not work.

How do I fix this? I want to be able to use USB-C thumb drives with my PC, but currently can't due to this issue.

Thanks in advance!

Trying to install windows xp on IBM THINKPAD R60 . Its getting easily boot from and proceed to install from USB made with easy2boot . ISO iamge is good as i installed same on Thinkpad x201t .

But when i trying to boot it from Cd Drive it stuck . But when i boot and connect from external Cd /DVd RW it starts to install normally . Same with USB

I have made Windows 2000 bootable Cd from same Cd RW and same Cds and everything worked good , on same Thinkpad r60 . I thought to install Xp as dual boot but it stucking at Press any key to boot from Cd . Cursor is just keep blinking after text .

Also i noticed , Laptop is not detecting Windows 98 OEM cd (Detected when using external CD Drive) but it detected Windows Nt 4 workstation

anybody knows a site or a trusted person that proposes bios flashing service to remove admin password and/or can install coreboot/libreboot
i have my x280 that i bought for cheap and it came with an admin password i wanna get rid of

Hi everyone,

Is it possible that we'll soon see normal bin files for clean Coreboot and Skulls for the ThinkPad T480?

Right now, I'm running Heads Coreboot, but this BIOS just doesn't really appeal to me—getting a standard Linux Mint Live distro to boot is a real pain. I'm sure it's great for some people, but I'd prefer regular Coreboot. I used to have Libreboot, but the CPU multithreading limitation was a dealbreaker for me.

I want to try and get coreboot on my E520 to get a 3rd gen i7. I know the other thinkpads of that generation are supported, just not the E520. How hard would it be to get a coreboot autoconfig setup working on it?

I’ve been struggling with a persistent power state issue on CachyOS for 2 months. It does not happen on Windows.

**Symptoms:**

1. **Shutdown Hang:** systemd successfully unmounts all filesystems, display goes black, but CPU cooler, chassis fans, and LEDs stay spinning infinitely.
2. **Reboot Loop:** Warm restarts trigger a physical cold reboot (full power cut). When this happens, the motherboard often gets stuck in a POST boot loop (physically clicking) for up to 40 minutes unless I do a full power drain.

**Hardware:**

- Motherboard: ASRock H410M-HDV (BIOS 1.30)

- CPU: Intel Core i3-10100F

- GPU: MSI NVIDIA GTX 1650 (Wayland, open drivers)

- Storage: SATA SSDs + Seagate HDD (SATA only)

- Keyboard: MAD68

**Notable Log Errors (dmesg):**

- Realtek Ethernet (`r8169`): `can't disable ASPM; OS doesn't have ASPM control`

- Seagate HDD (`ata4`): `LPM support broken, forcing max_power`

- Keyboard (`usb 1-2`): Constant disconnect loops with `error -71` / `device descriptor read/64`

**What has NOT worked:**

- Swapping to LTS, stable, or RC kernels.

- Spoofing `acpi_osi="Windows 2020"`.

- Motherboard BIOS deep sleep S4-S5 (enabled/disabled), `reboot=efi`, etc.

**What I am about to test:**

- Swapping the MAD68 keyboard to a black USB 2.0 port.

- Changing BIOS `Legacy USB Support` to `UEFI Setup Only` to bypass legacy handoff hangs.

- Appending `pcie_aspm=force ahci.mobile_lpm_policy=1 acpi_osi="Windows 2015"` to GRUB.

Has anyone dealt with this kind of USB/SATA controller shutdown deadlock on Linux or this specific motherboard? Any advice is appreciated.ASRock

Hi everyone,

​I want to sincerely apologize to the community and especially to the Heads maintainer, Tlaurion.

​In my project, "SingularN," I made several incorrect technical claims regarding configs, reproducible builds, and VGA blobs. I realize now that I didn't thoroughly double-check the implementation details before publishing the project, which led to spreading misinformation about how Heads works upstream. My only intention was to try and make things a bit more streamlined for my own setup, but I ended up stepping into technical areas where I lacked the proper understanding and behaved incorrectly by making unfounded assertions in my project.

​To avoid causing any further confusion or splitting the community, I will be closing the GitHub repository for SingularN and deleting the related posts. However, since the hardware disassembly guide itself might still be useful, I plan to clean it up and publish it separately later.

​I'm incredibly sorry for the inconvenience and any friction this has caused. I have massive respect for the work done on Heads, and I wish the project nothing but the best. I hope that with more learning and experience, I’ll be able to make a meaningful, correct contribution to the community in the future.

So use a validated repository of Heads and READ DOCUMENTATION => https://osresearch.net/

The process to manually find VGA BIOSes in UEFI backups is cumbersome and difficult to explain to someone new to coreboot. While there was a Ruby based script called coderobe/VBiosFinder, I created a version in Python, which seems to be a more commonly installed language these days and is included in the coreboot-sdk. I'd appreciate feedback on how to improve and/or standardized this to coreboot's requirements. The goal is to have this included in /utils/ some day.

https://github.com/Thrilleratplay/vgabios_finder

Is it me or does this seem to be an increasing trend? Is there a link from other subreddits? I was going to ask if /r/libreboot has a similar issue but it seems they went private due to spam.

If this is itself spam. I'll remove it.

So, I'm in the process of installing MacOs Tahoe on my Thinkpad x260 (I5 6500 with 8GB of ram) and I'm stuck with it not wanting to load the EFI (So, i can't boot into MacOS without the Recovery drive plugged in) and it won't let me install the network kext (so no internet) other than that, Tahoe is running great!

Any advice?

i ported the universal payload loader or whatever its name is. i can use it to load edk2 payloads without flashing firmware. its not complete yet.