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[Solved] Not booting- freeze at GRUB
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dspahn
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PostPosted: Mon Dec 10, 2018 8:43 pm    Post subject: [Solved] Not booting- freeze at GRUB Reply with quote

I am using a brand new Gentoo installation. I followed the handbook to the "T" for a systemd/GPT/UEFI/GRUB2 installation. No problem with this on a couple of other different machines, but this one is a different story.
When I boot, it goes to the Grub menu. When I hit enter to load the default, It shows "Loading Linux 4.14.83-gentoo …"
and appears to freeze. I have the right options set in the kernel, the tiny partition is ext2, the /boot is vfat, created with the -F32 switch. The rootfs is ReiserFS, and all are compiled in the kernel, not as modules. So it looks like the problem happens after Grub hands off execution to the kernel. I have the EFI framebuffer enabled, and set grub to 640x480. Computer is an HP Z230 with an NVidia Quadro card in it. I used SystemRescueCD for my install media- the same disc I used for my other successes. Any ideas where to look to troubleshoot? I can reboot and access the new system by chrooting in... just not sure what to look for. It seems to hang on the line in grub.cfg where it is supposed to load the kernel. This is the third time I have tried this system, and have the exact same issue each time. I appreciate any help!
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Last edited by dspahn on Tue Dec 11, 2018 6:32 pm; edited 1 time in total
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NeddySeagoon
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PostPosted: Mon Dec 10, 2018 8:56 pm    Post subject: Reply with quote

dspahn,

Enable the Simple Framebuffer in the kernel too. That enables the kernel to use the framebuffer left behind by Grub.
It may get some diagnostic info.
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dspahn
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PostPosted: Tue Dec 11, 2018 3:41 pm    Post subject: Nope. Nothing. Reply with quote

Just a "Loading Linux 4.14.83-gentoo …" screen

Here's a thought: When I was installing the bootloader, I got a message about efivars… so I ran the "portable" version of the command and did not get the message. Is this likely to be the issue, or was it actually successful (Since grub itself loads)?
Is it a mounting issue? here is my fstab:
https://paste.pound-python.org/show/1qWNRplA4699JaPcZGB7/

I've tried recompiling, rebooting selecting recovery, and get the same result- it must be something very fundamental. Any idea what I've done wrong?
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NeddySeagoon
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PostPosted: Tue Dec 11, 2018 3:50 pm    Post subject: Reply with quote

dspahn,

/etc/fstab plays no part in getting the kernel loaded. It has to mount the root partition first, before it can read /etc/fstab.
The kernel knows where the root partition is because you tell it on the kernel command line.
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dspahn
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PostPosted: Tue Dec 11, 2018 5:50 pm    Post subject: Next Step... Reply with quote

I went back to a machine that was successful and noticed the kernel was 4.14.65, so I emerged that, grabbed the .config from that machine and am recompiling on the troubled machine now.... If this works then I'll know that the problem is related to the kernel or config, and not a botched setup step.
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dspahn
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PostPosted: Tue Dec 11, 2018 6:12 pm    Post subject: booted... Reply with quote

Looks like it booted just fine using known good config and kernel 4.14.65... Rebuilding the kernel on 4.14.85 with the good config to see if the problem is the version or my config.....
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dspahn
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PostPosted: Tue Dec 11, 2018 6:32 pm    Post subject: OK, Looks good now! Reply with quote

I did something wrong in my configs... using the good config with the kernel (correction: 4.14.83 not 85) and now boots.
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