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MrChromebox / firmware

Issue tracker for firmware issues
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How to come back to 4.12 version #283

Open Spok974 opened 3 years ago

Spok974 commented 3 years ago

Hey i would like to install an hackintosh on cn60 an Cn62 with i7 processor but when I install the last version 4.13 I can't do it ... I ve done It easily on the past with older version ... How can I process to install an older version?!

Thanks for all your awesome work

MrChromebox commented 3 years ago

no way to install older versions, keeping track of one version for each of the ~100 device supported is hard enough. Not sure what's different but I know others have installed MacOS without issue on the 4.13 firmware.

Spok974 commented 3 years ago

Thanks for the answers ! I know a lot of people who have the same issue like me ... if you have a good tutorial or tricks, I could try to make a YouTube video for help the others if I can do it ! Thanks

MrChromebox commented 3 years ago

I have no idea, I don't test against MacOS. Check the chrultrabook subreddit or other Hachintoshing forums

Spok974 commented 3 years ago

Thank you Every tutorial I find on the web are under 4.12 version and its work great like my older hackintosh but with 4.13 impossible to do it actually

It is possible to copy a bios with 4.12 firmware with your online script? If I find somebody who has the same chromebox can I downgrade 4.13 to 4.12 with a copy of the bios?

I hope you anderstand why I mean 😄 Thanks you so much bro

MrChromebox commented 3 years ago

no, my script doesn't provide option to flash older versions, and if you use the firmware from another device you will run into issues with the serial number and LAN MAC address being copied

one8three commented 3 years ago

I know others have installed MacOS without issue on the 4.13 firmware

@MrChromebox, do you happen to have a source you can point me to for this? Everything I've found points to the same issue with 4.13 and MacOS (kernel panics on reboots/startup and during installation). My best guess is still that it's NVRAM related but doesn't seem to be specific to a model. Maybe generation specific though (Broadwell).

MrChromebox commented 3 years ago

I don't, I don't use MacOS. I have no way of testing 100+ devices (or even 10+ platforms) for each release.

one8three commented 3 years ago

Yeah, I get that. Was just hoping you could point me in the direction of somebody who has had success with MacOS and 4.13 so I could compare notes.

toanlm1981 commented 3 years ago

@TheRandMan did you try 4.14 version?

Spok974 commented 3 years ago

Waldoxhm said: bigsur version of efi is updated. I've fully tested with coreboot 4.14, I got kernel panic when boot up, it may due to the bugfix of IGPU and the way nvram stores changed. I managed to downgrade bios to 4.12 check https://github.com/waldoxhm/scripts. 1.burn a linux image to a sdcard with balenaEtcher. 2.boot cn62 to this livecd os. 3.follow the guide run the command.

MrChromebox commented 3 years ago

@Spok974 that repo is a bad idea, there's no guarantee I'll keep those older versions around. It also won't maintain the Ethernet MAC address on Chromeboxes since the script logic isn't set up to handle going back to the older VPD format

waldoxhm commented 3 years ago

@TheRandMan simplely set Booter->Quirks->DisableVariableWrite and NVRAM->LegacyEnable to true in config.plist will do the trick in my case. And use emulated NVRAM with LogoutHook.

one8three commented 3 years ago

@TheRandMan simplely set Booter->Quirks->DisableVariableWrite and NVRAM->LegacyEnable to true in config.plist will do the trick in my case. And use emulated NVRAM with LogoutHook.

Thought I tried this but will try again. Thanks.