Fedora 31 stuck in a boot loop

black3dynamite

Here's an example of my Grub setting using UEFI on Fedora

sudo cat /boot/efi/EFI/fedora/grubenv
# GRUB Environment Block
saved_entry=a0a0a0b0a0000000a0a000000a00aaaa-5.3.12-300.fc31.x86_64
menu_auto_hide=1
boot_success=1
kernelopts=root=/dev/mapper/fedora_user-root ro rd.lvm.lv=fedora_user/root rd.luks.uuid=luks-0aa0aa00-341a-0000-000a-a000a0a0aa70 rhgb quiet
boot_indeterminate=0

JaredBusch

@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.

black3dynamite

@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

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.

Solved Fedora 31 stuck in a boot loop