problem to install at boot

pabloblo · n00b Joined: 24 Jan 2024 Posts: 71

hello
actually i have gentoo openrc + xfce + grub
i want to delete grub to boot with efi stub
i have read the documentation to install efi stub, but it don t work
i don t have solution

pietinger · Posted: Mon Sep 30, 2024 9:19 pm Post subject:

Which kernel do you use ? Our distribution kernel or a manually configured one ? The last question is important to see if you use an initramfs or not.

There is an automated way via installkernel or you can do everything yourself.

You could read this before answering the questions:
https://wiki.gentoo.org/wiki/User:Pietinger/Tutorials/Boot_kernel_via_UEFI

(there is also another forums post, where a user with a distribution kernel (= WITH initramfs) wanted to boot the kernel directly via UEFI:
https://forums.gentoo.org/viewtopic-p-8805827.html#8805827 )
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pabloblo · n00b Joined: 24 Jan 2024 Posts: 71

hello pietinger
how are you ?
yes i compile myself
in my /boot i have this :

Nowa · Posted: Tue Oct 01, 2024 6:39 pm Post subject:

Please share the output of

pabloblo · n00b Joined: 24 Jan 2024 Posts: 71

hello,
this is the output :

Nowa · Posted: Tue Oct 01, 2024 7:14 pm Post subject:

The efistub flag is not enabled, this is why it does not work.

This is an experimental feature, and the flag is stabled masked, to enable it you'd have to accept testing keywords for installkernel, uefi-mkconfig and dependencies.
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pabloblo · n00b Joined: 24 Jan 2024 Posts: 71

so, if i put these 2 flags, efistub and ugrd, i reboot thte computer and it work ?

Nowa · Posted: Tue Oct 01, 2024 7:31 pm Post subject:

pabloblo · n00b Joined: 24 Jan 2024 Posts: 71

ah ok!

pietinger · Posted: Tue Oct 01, 2024 7:49 pm Post subject:

pietinger · Posted: Tue Oct 01, 2024 7:51 pm Post subject:

P.S.: Dont use parameter -D when you emerge "installkernel"->

pabloblo · n00b Joined: 24 Jan 2024 Posts: 71

ok thank you

pabloblo · n00b Joined: 24 Jan 2024 Posts: 71

* Updating UEFI configuration...
* Running uefi-mkconfig...
* No uefi-mkconfig configuration file found!
* uefi-mkconfig failed

i don t know which file he need

pietinger · Posted: Tue Oct 01, 2024 11:14 pm Post subject:

Nowa · Posted: Wed Oct 02, 2024 5:16 am Post subject:

pabloblo · n00b Joined: 24 Jan 2024 Posts: 71

the computer is dead, kernel panic
maybe i have do mistake for the configuration

pietinger · Posted: Wed Oct 02, 2024 9:10 pm Post subject:

pabloblo · n00b Joined: 24 Jan 2024 Posts: 71

oh thx!! i will try it
i don t understand because i have initramfs

pabloblo · n00b Joined: 24 Jan 2024 Posts: 71

ok, the problem is,
unable to mount root fs on unknown block
but i have put uuid in the kernel and compile it; but it don t work

Hu · Administrator Joined: 06 Mar 2007 Posts: 22720

Per Guidelines item #4, please give us output we can use. What is the output of blkid? Exactly how did you instruct the initramfs to mount root?

pietinger · Posted: Thu Oct 03, 2024 11:11 pm Post subject:

pabloblo,

I have asked you to give me the output of “efibootmgr”. And I asked you if - and if so, how - you use an initramfs. You said you make your own kernel. But there are several ways to do this. We need the information what you have done ... and how.

The more precise your information about the situation is, the sooner and faster we can help you. An example:

The kernel panic "unable to mount root fs on unknown block" has usually some numbers in parentheses; e.g. (0,0) or (1,3) These numbers tell us something.

I have found the cause of every boot problem so far. If you want quick help, please just do now exactly what I ask for:

1. Boot into your system using grub
2. Give us all 3 files mentioned here:
https://wiki.gentoo.org/wiki/User:Pietinger/Overview_of_System_Information
(note the reference to wgetpaste for your "dmesg"-output)
3. Give us also your current kernel .config. If you have more then one used kernel, we need the kernel .config of the kernel you want to boot directly via UEFI (also with wgetpaste)
4. Do these queries (and paste it into your post):
- efibootmgr
- blkid
- lsblk
- fdisk -l
- cat /etc/fstab
- cat /boot/grub/grub.cfg (also with wgetpaste)
- ls -l /boot
- ls -l /boot/EFI -OR- ls -l /boot/efi -OR- ls -l /efi (depending where you mount your ESP)
5. Boot again into your kernel directly (via UEFI) and tell us the numbers you will see in the kernel panic message.
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pietinger · Posted: Thu Oct 03, 2024 11:22 pm Post subject:

P.S.: Use code-tags

If you dont know, then edit your 2nd (or 3rd) post of this thread and look at the beginning and the end of the code-section. It starts with [code]
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pabloblo · n00b Joined: 24 Jan 2024 Posts: 71

hello, I managed to recover the computer as it was before, so with grub, it works but the goal is to have a computer with efistub, can someone tell me the steps to follow, the tutorial does not work not

pjp · Administrator Joined: 16 Apr 2002 Posts: 20490

Step 1: Provide the information previously requested by both pietinger and Hu.
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