grub always comes up with command line

cwdztsd88 · 05-04-2024, 09:03 AM

I installed grub to my Pop os pc because systemd boot was broken, it could not boot any kernel after version 6.2. Currently i boot computer by specifying prefix and root directories manually in grub cli:

Code:

set prefix=(hd0,gpt1)/grub
set root=(hd0,gpt2)/
normal

I tried grub-update, not even a sign of improvement. I added custom menu to /etc/grub.d/40_custom:

Code:

#!/bin/sh
exec tail -n +3 $0
# This file provides an easy way to add custom menu entries.  Simply type the
# menu entries you want to add after this comment.  Be careful not to change
# the 'exec tail' line above.
menuentry "pop_os" {
set root=(hd0,gpt2)
set prefix=(hd0,gpt1)/grub
linux /boot/efi/EFI/Pop_OS-1d18dfdb-3d9c-4e7c-aa0c-c2eb92b1adb4/vmlinuz
initrd /boot/efi/EFI/Pop_OS-1d18dfdb-3d9c-4e7c-aa0c-c2eb92b1adb4/initrd.img
}

Not even a sign of improvement.

yancek · 05-04-2024, 01:21 PM

Do you have a directory for Pop-OS in the /boot/efi/EFI directory and if so, what is it? If this directory exists, does it have a grub.cfg file? What's in it? Is Grub not in the /boot directory as indicated in your post? Are the vmlinuz and initrd files actually on the EFI partition?

colorpurple21859 · 05-04-2024, 01:40 PM

open a terminal and post the output of the following

Code:

sudo lsblk -f
sudo cat /boot/efi/EFI/ubuntu/grub.cfg
sudo cat /etc/fstab
sudo efibootmgr -v

cwdztsd88 · 05-05-2024, 05:02 PM

Quote:

Originally Posted by yancek

Do you have a directory for Pop-OS in the /boot/efi/EFI directory and if so, what is it? If this directory exists, does it have a grub.cfg file? What's in it? Is Grub not in the /boot directory as indicated in your post? Are the vmlinuz and initrd files actually on the EFI partition?

thats just default kernel storing directory

grub.cfg is in /boot/grub

cwdztsd88 · 05-05-2024, 05:04 PM

Quote:

Originally Posted by colorpurple21859

open a terminal and post the output of the following

Code:

sudo lsblk -f
sudo cat /boot/efi/EFI/ubuntu/grub.cfg
sudo cat /etc/fstab
sudo efibootmgr -v

1.:

Code:

   sudo lsblk -f | grep -v loop
NAME        FSTYPE   FSVER LABEL UUID                                 FSAVAIL FSUSE% MOUNTPOINTS
zram0                                                                                [SWAP]
nvme0n1                                                                              
├─nvme0n1p1 vfat     FAT32       27F9-7039                             811.7M    21% /boot/efi
├─nvme0n1p2 ext4     1.0         1d18dfdb-3d9c-4e7c-aa0c-c2eb92b1adb4   67.8G    66% /
└─nvme0n1p3 swap     1           53629eae-780e-43c4-b14f-bd52f292cf28                [SWAP]

2.:cat: /boot/efi/EFI/ubuntu/grub.cfg: No such file or directory
its in /boot/grub/grub.cfg probably

3.:

Code:

   sudo cat /etc/fstab
# /dev/nvme0n1p2
UUID=1d18dfdb-3d9c-4e7c-aa0c-c2eb92b1adb4	/         	ext4      	rw,relatime,stripe=32	0 1

# /dev/nvme0n1p1
UUID=27F9-7039      	/boot/efi 	vfat      	rw,relatime,fmask=0022,dmask=0022,codepage=437,iocharset=ascii,shortname=mixed,utf8,errors=remount-ro	0 2

# /dev/nvme0n1p3
UUID=53629eae-780e-43c4-b14f-bd52f292cf28	none      	swap      	defaults  	0 0

4.:

Code:

   sudo efibootmgr -v
BootCurrent: 0002
Timeout: 0 seconds
BootOrder: 0002,0000,0001,0012,0013,0014,0015,0016,0017,0018
Boot0000* GRUB	HD(1,GPT,3b6f7f47-9fb3-4898-85e1-b39b1ded6207,0x800,0x200000)/File(\EFI\GRUB\grubx64.efi)
Boot0001* arch	HD(1,GPT,b9d0f340-ee91-4ef9-985b-325de5c537e4,0x800,0x64000)/File(\EFI\arch\grubx64.efi)
Boot0002* pop	HD(1,GPT,3b6f7f47-9fb3-4898-85e1-b39b1ded6207,0x800,0x200000)/File(\EFI\pop\grubx64.efi)
Boot0010  Setup	FvFile(721c8b66-426c-4e86-8e99-3457c46ab0b9)
Boot0011  Boot Menu	FvFile(86488440-41bb-42c7-93ac-450fbf7766bf)
Boot0012* NVMe: SAMSUNG MZALQ256HBJD-00BL2             	PciRoot(0x0)/Pci(0x1,0x1)/Pci(0x0,0x0)/NVMe(0x1,00-25-38-D5-21-C0-5D-A1)....2.LN........
Boot0013* eMMC Card:	VenMsg(bc7838d2-0f82-4d60-8316-c068ee79d25b,63a04a38d7705b4888c69653c982e114)
Boot0014* ATA HDD:	VenMsg(bc7838d2-0f82-4d60-8316-c068ee79d25b,91af625956449f41a7b91f4f892ab0f600)
Boot0015* USB HDD: SanDisk Cruzer Blade	PciRoot(0x0)/Pci(0x8,0x1)/Pci(0x0,0x3)/USB(1,0)3.!..3.G..A.....
Boot0016* USB LAN:	VenMsg(bc7838d2-0f82-4d60-8316-c068ee79d25b,e854bca4cae7704ca322b00da0376322)
Boot0017* USB FDD:	VenMsg(bc7838d2-0f82-4d60-8316-c068ee79d25b,6ff015a28830b543a8b8641009461e49)
Boot0018* USB CD:	VenMsg(bc7838d2-0f82-4d60-8316-c068ee79d25b,86701296aa5a7848b66cd49dd3ba6a55)

colorpurple21859 · 05-05-2024, 05:13 PM

At the grub> prompt

Code:

grub> set pager=1
grub> set

What is the contents of the prefix= line?

yancek · 05-06-2024, 07:18 AM

Quote:

Do you have a directory for Pop-OS in the /boot/efi/EFI directory and if so, what is it?

I asked the above question in post 2 and you neglected to answer it? Your efibootmgr output in post 5 shows the directory there is named 'pop' which would be what you should use in your grub.cfg. Most Ubuntu's like Pop use 'ubuntu' as the directory in the EFI partition but it appears that Pop does not, that was the reason for the question/suggestion above.

Did you check the /boot/efi/EFI/pop directory to see if there was a grub.cfg directory there? Many Ubuntu's have a small grub.cfg file there which points to the main grub.cfg file on your root filesystem partition.

The entry you posted in post 1 does not have a correct path. The kernel (linux file) and initrd are generally in the /boot directory not in the EFI directory. I don't use Pop OS so have you verified the location of these files? The kernel should probably be: linux /boot/vmlinuz root=UUID=1d18dfdb-3d9c-4e7c-aa0c-c2eb92b1adb4
Might need some parameters after the UUID.

You indicate you installed Grub as you were having boot problems and you have an entry for GRUB in your efi boot options Boot0000. What happens when you select that option in the BIOS firmware options?

cwdztsd88 · 05-07-2024, 10:38 AM

Quote:

Originally Posted by yancek

Did you check the /boot/efi/EFI/pop directory to see if there was a grub.cfg directory there? Many Ubuntu's have a small grub.cfg file there which points to the main grub.cfg file on your root filesystem partition.

checked /boot/efi/EFI/pop and it actually exists, because of i never saw it before. i always headed to Pop_OS-randomnumbers to configure my kernel iamges whilst i used systemd-boot at the time

Quote:

Originally Posted by yancek

The entry you posted in post 1 does not have a correct path. The kernel (linux file) and initrd are generally in the /boot directory not in the EFI directory. I don't use Pop OS so have you verified the location of these files? The kernel should probably be: linux /boot/vmlinuz root=UUID=1d18dfdb-3d9c-4e7c-aa0c-c2eb92b1adb4
Might need some parameters after the UUID.

yes kernels first copied to /boot then to /boot/efi/EFI/Pop_OS-1d18dfdb-3d9c-4e7c-aa0c-c2eb92b1adb4/ thats default and i am used to it its definely true, there are no typos.

i will look and try for uuid.

Quote:

Originally Posted by yancek

You indicate you installed Grub as you were having boot problems and you have an entry for GRUB in your efi boot options Boot0000. What happens when you select that option in the BIOS firmware options?

grub cli again

cwdztsd88 · 05-07-2024, 10:42 AM

Quote:

Originally Posted by colorpurple21859

At the grub> prompt

Code:

grub> set pager=1
grub> set

What is the contents of the prefix= line?

grub.cfg=

search.fs_uuid 1d18dfdb-3d9c-aa0c-c2eb92b1adb4
set prefix=($root)'/boot/grub'
configfile $prefix/grub.cfg

btw what is that set pager thing's command, it made grub show some expressions

colorpurple21859 · 05-07-2024, 11:52 AM

The ‘set pager=1’ allows to you to see all the lines of the set command. I was looking to see if
‘prefix=/EFI/ubuntu’
Reinstall grub with this:

Code:

sudo grub-install --no-efi-secure-boot

cwdztsd88 · 05-08-2024, 04:10 AM

Quote:

Originally Posted by colorpurple21859

The ‘set pager=1’ allows to you to see all the lines of the set command. I was looking to see if
‘prefix=/EFI/ubuntu’
Reinstall grub with this:

Code:

sudo grub-install --no-efi-secure-boot

grub-install: unrecognized option '--no-efi-secure-boot'

cwdztsd88 · 05-08-2024, 04:11 AM

maybe i was using old grub version?

Code:

   grub-install --version 
grub-install (GRUB) 2.06-2ubuntu7.2

cwdztsd88 · 05-08-2024, 04:15 AM

Quote:

Originally Posted by cwdztsd88

grub.cfg=

search.fs_uuid 1d18dfdb-3d9c-aa0c-c2eb92b1adb4
set prefix=($root)'/boot/grub'
configfile $prefix/grub.cfg

btw what is that set pager thing's command, it made grub show some expressions

to not get it wrong, thats content of prefix directory i use when booting manually, not set pager

colorpurple21859 · 05-08-2024, 05:09 AM

did you run the two commands in post #6 just as they are and notice what the prefix= line references?

cwdztsd88 · 05-08-2024, 03:56 PM

Quote:

Originally Posted by colorpurple21859

did you run the two commands in post #6 just as they are and notice what the prefix= line references?

prefix line is:

prefix=(hd0,gpt1)/EFI/ubuntu