Fedora 31 stuck in a boot loop

JaredBusch

@black3dynamite said in Fedora 31 stuck in a boot loop:

@JaredBusch said in Fedora 31 stuck in a boot loop:
@black3dynamite said in Fedora 31 stuck in a boot loop:
Here's an example of my Grub setting using UEFI on Fedora
sudo cat /boot/efi/EFI/fedora/grubenv
There we go.. grubenv is missing on my laptop.
That can also be missing if you are not using UEFI. In fact, there shouldn't be nothing in /boot/efi/EFI/fedora/ if you using BIOS instead of UEFI.

sudo find /boot/ -name grub.cfg will output one of the following:

BIOS
/boot/grub2/grub.cfg

UEFI
/boot/efi/EFI/fedora/grub.cfg

It is (was) UEFI for certain. BIOS config is set to UEFI boot.

Obsolesce

@JaredBusch said in Fedora 31 stuck in a boot loop:

@black3dynamite said in Fedora 31 stuck in a boot loop:
Here's an example of my Grub setting using UEFI on Fedora
sudo cat /boot/efi/EFI/fedora/grubenv
There we go.. grubenv is missing on my laptop.

Remove grubenv, that's a nice update feature...

black3dynamite

@Obsolesce said in Fedora 31 stuck in a boot loop:

@JaredBusch said in Fedora 31 stuck in a boot loop:
@black3dynamite said in Fedora 31 stuck in a boot loop:
Here's an example of my Grub setting using UEFI on Fedora
sudo cat /boot/efi/EFI/fedora/grubenv
There we go.. grubenv is missing on my laptop.
Remove grubenv, that's a nice update feature...

On UEFI system, /boot/grub2/grubenv is a symbolic link to /boot/efi/EFI/fedora/grubenv. Maybe an update to grub screwed up something.

black3dynamite

I don't even if know if this will fix grub or not. But here you go.

Create a new empty grubenv file in /boot/efi/EFI/fedora/grubenv.

sudo grub2-editenv /boot/efi/EFI/fedora/grubenv create

I noticed on my system, there is a symbolic of /boot/efi/EFI/fedora/grubenv in /boot/grub2/

sudo ln -sf /boot/efi/EFI/fedora/grubenv /boot/grub2/grubenv

Rebuild GRUB

sudo grub2-mkconfig -o /boot/efi/EFI/fedora/grub.cfg

Rebuild initramfs images

sudo dracut --force --regenerate-all

And then reboot.

JaredBusch

@Obsolesce said in Fedora 31 stuck in a boot loop:

@JaredBusch said in Fedora 31 stuck in a boot loop:
@black3dynamite said in Fedora 31 stuck in a boot loop:
Here's an example of my Grub setting using UEFI on Fedora
sudo cat /boot/efi/EFI/fedora/grubenv
There we go.. grubenv is missing on my laptop.
Remove grubenv, that's a nice update feature...

The updates show that grub had changes. Shit happens with all OS.

grub2-common                    noarch 1:2.02-103.fc31           updates 876 k
grub2-efi-x64                   x86_64 1:2.02-103.fc31           updates 458 k
grub2-pc-modules                noarch 1:2.02-103.fc31           updates 847 k
grub2-tools                     x86_64 1:2.02-103.fc31           updates 1.8 M
grub2-tools-efi                 x86_64 1:2.02-103.fc31           updates 469 k
grub2-tools-extra               x86_64 1:2.02-103.fc31           updates 916 k
grub2-tools-minimal             x86_64 1:2.02-103.fc31           updates 552 k

JaredBusch

@black3dynamite said in Fedora 31 stuck in a boot loop:

I don't even if know if this will fix grub or not. But here you go.

Create a new empty grubenv file in /boot/efi/EFI/fedora/grubenv.
sudo grub2-editenv /boot/efi/EFI/fedora/grubenv create
I noticed on my system, there is a symbolic of /boot/efi/EFI/fedora/grubenv in /boot/grub2/
sudo ln -sf /boot/efi/EFI/fedora/grubenv /boot/grub2/grubenv
Rebuild GRUB
sudo grub2-mkconfig -o /boot/efi/EFI/fedora/grub.cfg
Rebuild initramfs images
sudo dracut --force --regenerate-all
And then reboot.

Actually, the /boot/efi/ folder was completely empty. No sub-folders or anything.
I made EFI/fedora in there and then the commands ran.

But no change in behavior

Obsolesce

@JaredBusch got a backup that happened to grab /boot...?

Or maybe copy what's needed from a working system?

JaredBusch

@Obsolesce said in Fedora 31 stuck in a boot loop:

@JaredBusch got a backup that happened to grab /boot...?

Or maybe copy what's needed from a working system?

No backup since the data is sync'd.

Mostly I'm trying to figure out how to resolve without a reinstall if possible for knowledge sake. Not to save my system.

jmoore

So it was an update that did this?

JaredBusch

@jmoore said in Fedora 31 stuck in a boot loop:

So it was an update that did this?

Had to be, as it was working. I shutdown to go home. Then it wasn't working.

jmoore

@JaredBusch Ok thanks, good to know.

JaredBusch

Unless someone has any more ideas, I'm also out of ideas and I will have to reinstall since I will need my laptop on Wednesday and Thursday.

scottalanmiller

@JaredBusch said in Fedora 31 stuck in a boot loop:

Kernel 5.3.12-300 is current.
But both previous kernels fail also.
5.3.11-300
5.3.8-300

So this suggests that a library or something has failed, not the kernel. That's going to be a huge pain.

JaredBusch

@scottalanmiller said in Fedora 31 stuck in a boot loop:

@JaredBusch said in Fedora 31 stuck in a boot loop:

Kernel 5.3.12-300 is current.
But both previous kernels fail also.
5.3.11-300
5.3.8-300

So this suggests that a library or something has failed, not the kernel. That's going to be a huge pain.

Right sounds like the grub update borked itself.

scottalanmiller

@flaxking said in Fedora 31 stuck in a boot loop:

@Pete-S said in Fedora 31 stuck in a boot loop:

Can't provide any input but it's interesting to read the problems that shows up every time there is a new Fedora release out. Your customers are a forgiving bunch for sure.

That said, it's great for the open source community to have lots of people running the latest and greatest.

I've been on Fedora about 2 years on my laptop now and I know exactly what you're talking about.

No new release issues on any Fedora system that I use, either. Been flawless and we use it across laptops, desktops, and servers.

scottalanmiller

@JaredBusch said in Fedora 31 stuck in a boot loop:

I did have a Fedora 31 laptop (different model Dell than mine) spun up and logged in two weeks ago. I have ran updates on that one and rebooted. it is running fine.

Yeah, my Dell with F31 hasn't had an issue yet and I keep it updated.

scottalanmiller

@JaredBusch said in Fedora 31 stuck in a boot loop:

The updates show that grub had changes. Shit happens with all OS.

They also showed that something new was being compiled against GLibC and the Kernel.

scottalanmiller

@JaredBusch said in Fedora 31 stuck in a boot loop:

@scottalanmiller said in Fedora 31 stuck in a boot loop:

@JaredBusch said in Fedora 31 stuck in a boot loop:

Kernel 5.3.12-300 is current.
But both previous kernels fail also.
5.3.11-300
5.3.8-300

So this suggests that a library or something has failed, not the kernel. That's going to be a huge pain.

Right sounds like the grub update borked itself.

That's definitely my guess.

scottalanmiller

@JaredBusch have you tried the boot loader rebuild process listed here?

https://docs.fedoraproject.org/en-US/Fedora/23/html/System_Administrators_Guide/sec-Resetting_and_Reinstalling_GRUB_2.html

JaredBusch

@scottalanmiller said in Fedora 31 stuck in a boot loop:

@JaredBusch have you tried the boot loader rebuild process listed here?

https://docs.fedoraproject.org/en-US/Fedora/23/html/System_Administrators_Guide/sec-Resetting_and_Reinstalling_GRUB_2.html

I don't have any internet. It only boots to emergency mode when I choose the rescue kernel. Anything else is the boot loop.

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