Why can't I find the file /boot/grub/grub.cfg

answer · March 3, 2025, 3:18am

I tried to build my own image, but after installation, the following error occurred. Can you tell me what caused this?

Apachez · March 3, 2025, 4:43am

VyOS uses a python script to create the grub config.

vyos/vyos-1x/blob/fc500ae0e8afe7fb7792089480e950310c0ea87f/src/op_mode/image_installer.py#L873


      
          grub.create_structure()
          grub.version_add(image_name, DIR_DST_ROOT)
          grub.set_default(image_name, DIR_DST_ROOT)
          grub.set_console_type(console_dict[console_type], DIR_DST_ROOT)
          
          if is_raid_install(install_target):
              # add RAID specific modules
              grub.modules_write(f'{DIR_DST_ROOT}/{grub.CFG_VYOS_MODULES}',
                                 ['part_msdos', 'part_gpt', 'diskfilter',
                                  'ext2','mdraid1x'])
          # install GRUB
          if is_raid_install(install_target):
              print('Installing GRUB to the drives')
              l = install_target.disks
              for disk_target in l:
                  disk.partition_mount(disk_target.partition['efi'], f'{DIR_DST_ROOT}/boot/efi')
                  grub.install(disk_target.name, f'{DIR_DST_ROOT}/boot/',
                               f'{DIR_DST_ROOT}/boot/efi',
                               id=f'VyOS (RAID disk {l.index(disk_target) + 1})')
                  disk.partition_umount(disk_target.partition['efi'])
          else:

Apachez · March 3, 2025, 4:49am

Some more info:

github.com

vyos/vyos-1x/blob/fc500ae0e8afe7fb7792089480e950310c0ea87f/python/vyos/system/grub.py

# Copyright 2023-2024 VyOS maintainers and contributors <[email protected]>
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 of the License, or (at your option) any later version.
#
# This library is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with this library.  If not, see <http://www.gnu.org/licenses/>.

import platform

from pathlib import Path
from re import MULTILINE, compile as re_compile
from shutil import copy2

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answer · March 3, 2025, 5:40am

I guess the problem is due to the system not properly mounting/dev/sda3, but I don’t know what caused this issue.

answer · March 3, 2025, 5:46am

Discovered that the system is still running in a live iso environment。

system · April 2, 2025, 5:46am

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