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Adel Ahmed
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PostPosted: Fri Jun 23, 2023 1:45 am    Post subject: emmc unable to mount rootfs Reply with quote

Hello everyone,

I just got one of those intel cherry trail tablet that use an internal mmc for its storage
I have gone through the handbook to install gentoo, used a manual kernel configuration:
https://pastebin.com/Nziafh37

but I get :

Code:

please append a correct "root=" boot option: here are the available partitions:
kernel panic - not syncing: VFS: unable to mount root fs on unknown-block(0-0)


it seems that I am missing some kernel configuration that is making this mmc recognizable
here's my kernel line:
Code:
        linux   /vmlinuz-6.1.31-gentoo root=PARTUUID=0a9fb723-8696-244d-8ee8-aeba29761a00 ro init=/lib/systemd/systemd rootdelay=30


lsmod from the livecd:
https://pastebin.com/X8knsbCt

lspci -k from the livecd:
https://pastebin.com/0QNE2pwx

dmesg from the livecd:
https://pastebin.com/7DP0Uit5
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CooSee
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PostPosted: Fri Jun 23, 2023 9:04 pm    Post subject: Reply with quote

IIRC, you also need CONFIG_SCSI_UFSHCD=y

and i assume you need some more kernel settings regarding Intel - i just glanced through your .config.

what is the complete name/number/version of your device ?

why not using gentoo-kernel-bin to have a running system and then confguring a manual kernel step by step.

8)
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Adel Ahmed
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PostPosted: Sat Jun 24, 2023 2:49 am    Post subject: Reply with quote

that makes sense, but I'm stillmissing more modules, the kernel is still panicking with the same error :(.
gentoo-kernel-bin sounds like an excellent way of avoiding having to boot from the livecd, I'll give it a shot
it's a pluto a108, it's a local device that I'm completely unable to get information for, but they must've gotten the hardware config from somehwere so I'm looking for other intel cherry trail tablets with similar config.
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CooSee
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PostPosted: Sat Jun 24, 2023 3:40 pm    Post subject: Reply with quote

maybe you already found this https://linux-hardware.org/?probe=b95391e679

you should also try with current 6.3.* kernel-bins, because longterm stable ones behave weird sometimes and or back-ported patches doesn't really work as expected, imho.

8)
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