marcan changed the topic of #asahi to: Asahi Linux: porting Linux to Apple Silicon macs | "Does XXX work yet?": https://alx.sh/fs | GitHub: https://alx.sh/g | Wiki: https://alx.sh/w | Topics: #asahi-dev #asahi-re #asahi-gpu #asahi-alt #asahi-stream #asahi-offtopic | Keep things on topic | Logs: https://alx.sh/l/asahi
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<jannau>
stintel: which kernel (version) does it load? same as the dtbs inside the m1n1/boot.bin? there are from time unfortunately incompatible changes. if you're running into the most recent display device-tree changes adding nomodeset to the kernel cmdline would allow you to boot
<jannau>
fix would be installing the same kernel version on the system
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<stintel>
jannau: asahi-wip 6ea18366eefc6eab80f3a8f8da9d828d490393b7 + your DTS + a Kconfig dependency backport for cs35l45
<stintel>
trying nomodeset
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<stintel>
actually that commit seems to be a leftover fixup! arch: arm64: apple: t600x: Add display controller related device tree nodes after pull --rebase
<stintel>
but it doesn't seem relevant for t8112
<stintel>
so it's actually asahi-wip 6921b3927ae74a62b6b54476735a30ca66f098f9
<stintel>
jannau: yep, nomodeset worked. thank you so much
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<stintel>
not sure which "same kernel version" you're talking about though. I have only one kernel version. it boots from run_guest_kernel.sh, it doesn't from u-boot
<stintel>
(except with nomodeset now it does)
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<jannau>
stintel: ah, I thought there was system kernel installed from an asahilinux/fedora asahi install
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<vladanan>
hi folks i've been following you for several days and would like to try to help with documentation as is said on your site (for those who are new to this kind of thing) but i'm not sure who and how to contact
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<stintel>
jannau: I was unable to install asahi, installer complained about firmware version. only UEFI env install worked
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<jannau>
the fedora dev installer should work. I thought whose were already integrated in the alx.sh dev installer
<jannau>
stintel: do you have a kernel log of an "failed" boot attempt?
<stintel>
once I removed some modules from the initrd (I initially just packed all modules in the initrd), it would no longer lock up when starting udev. at that point it was usually something with dart and dcp on the last lines before locking up
<stintel>
this photo is the only time I had a stack trace though
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<jannau>
the cannot create duplicate filename /sys/*dart*iommu*dcp is strange
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<marcan>
stintel: you need to update macOS to 13.5 or newer
<stintel>
marcan: I am running macOS 13.65
<stintel>
13.5*
<marcan>
what did the installer say?
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<stintel>
firmware too old
<marcan>
13.5 final, no some beta?
<stintel>
final
<marcan>
I'll need the installer log (at least the stuff it prints to the console) to see what happened
<stintel>
it worked for uefi env only, not for asahi minimal
<marcan>
oh the alx.sh installer?
<marcan>
on what machine?
<stintel>
m2 air 15"
<marcan>
yeah that's expected
<stintel>
alright, so no need to reboot into macOS to get the installer log :)
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<marcan>
the builds for alx.sh don't support 13.5 yet and that machine requires 13.4+, therefore the intersection of supported firmware versions is empty
<marcan>
fedora should work :p
<_jannau__>
the alx isntaller lists only asahi images with 12.3/4
<stintel>
I won't touch fedora with a 10 ft pole
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<marcan>
it's the new shiny, I would highly recommend it over ALARM :p
<stintel>
yeah, my experiences with fedora have been abysmal. 20 years ago, 15 years ago, 10 years ago, 1 year ago
<stintel>
I will not run it unless I absolutely have to (e.g. corp managed like the last one)
<_jannau__>
those duplicate dart sysfs where iirc also visible in rob's and my starnge dart errors seen many months ago
<_jannau__>
stintel: has your config apple_dart as built-in or as a module?
<stintel>
I think this particular backtrace appeared when dart was not included in initrd (not 100% sure though, it was late :P)
<stintel>
I could try and repro, if that would be useful?
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<_jannau__>
not sure if that is helpful
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<stintel>
ok
<stintel>
awesome. I have a working Linux install on my m2 air 15"
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<stintel>
thanks for all the help, folks <3
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<_jannau__>
half working. the nomodeset disables display and gpu driver. the latter not fully but for dispaly purposes
<stintel>
at least it's booting from nvme without having to manually enter u-boot commands ;)
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<handlerug>
I want to upgrade from the ALARM remix to the Fedora Asahi one. is there something similar to how you would do that on a x86 PC (plug in and boot from flashdrive, reformat root and boot partition, leave home as is, install to the formatted root and boot)? basically I don't want to create another APFS container + leave more (unused in the end) space for the installation...
<handlerug>
I was thinking this is generally very hard but I saw a post on Mastodon that said it can be done in the same way so now I'm curious
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<dmitry>
How does boot picker remember what OS to boot when you don't select that volume as default? E.g. Asahi is selected as default, but I boot with opt to select macOS
<j`ey>
nvram
<dmitry>
Is something saved to SSD or NVRAM during that? If so, can some thousand of reboots selecting new os wear out a flash chip?
<dmitry>
Also, how does mini's cr2032 battery work? Is it used for saving clock only or also PRAM/NVRAM like on older macs?
<dmitry>
So NVRAM gets written on each reboot once you select a new OS, not only when you change the default?
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<dmitry>
Then how durable is that NOR flash used there? Is it an SLC flash? Maybe a partnumber is known
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<ChaosPrincess>
Dont worry about reboots wearing out your nvram, if something kills it, it will be macos boot logs that it writes there on every boot.
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<dmitry>
Does it? I thought it only wrote panic reports and backtraces there
<dmitry>
Does NVRAM have some FS with wear leveling etc?
<ChaosPrincess>
"FailbootBreadcrumbs" or whatever this thing is called is written every boot and tracks the boot process
<ChaosPrincess>
no fs, just key value
<dmitry>
Also heard about sth like boot failure detector you must write after good boot. Does it also live in nvram?
<j`ey>
there's a panic counter thing
<j`ey>
I dont think you write to that on normal boots
<dmitry>
Despite fail in name that logs each boot?
<dmitry>
Does this do wear leveling? What type of flash it is?
<ChaosPrincess>
well, you dont know if the boot will fail until it does and if it fails, you'd better have collected the logs
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<ChaosPrincess>
there is a tiny amount of incidental wear leveling in software in that it uses two copies and switches between them, but that is more failed write protection
<ChaosPrincess>
if there is wear leveling, its in hw
<dmitry>
Well, true. So Asahi does reduce the write rate because it doesn't log boots there?
<ChaosPrincess>
the chip is some spi nor flash chip, probably a jellybean part since it just worked in linux
<U9G>
Hey, if the Asahi installer for m2 is still wip, how can I install it on m2 macbook?
<dmitry>
Are those SLC? Probably teardown revealed that ID
<PaulFertser>
dmitry: SLC is about NAND memory, not NOR. Typical SPI NOR flash has 100k erase cycles.
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<ChaosPrincess>
as i guessed, just your average winbond bios flash chip
<ChaosPrincess>
high chance you will find those on your x86 mobo storing efi code and variables
<PaulFertser>
And ME firmware too.
<ChaosPrincess>
that lives as a partition inside the efi image, no?
<PaulFertser>
I think it's just a dedicated region, PCH fetches it as soon as it gets standby power. Either way it's not EFI code. Not sure if PCH actually parses the "descriptors" (or whatever they call that intel partition table) or not.
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<dmitry>
Got that, thanks for explaining! In any case it's data could be transferred to a new identical one
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