Latest update/s fail grub-pc

Zitat von geaves

By the power of google and my updated ability to read error messages and execute said command it appears resolved

Please could you share how did you solved it?

Thanks

Zitat von geaves

ssh into omv as root and run the command dpkg --configure -a you are then presented with a menu whereby you can select the correct boot device, follow the on screen instructions.

Thanks

The problem I see about this is that when I reboot OMV the boot disk is relocated on another device and the previous one is not retained.

This causes that the next grub update it will fail forcing me to fix it by hand with 'dpkg --configure -a' again.

This has happened twice in about 10 o 15 days with the two recent grub updates.

Take a look at this 8.8.2. GRUB 2 Configuration. Apparently is a bug on Debian Bullseye.

After each reboot the device order of the drives changes and the next grub update will fail.

May be there is some way to retain the boot drive association to /dev/sda. I don't know how to do it yet.

Sorry to necro a thread geaves but I cannot run the command dpkg --configure -a.

I received error messages as follows:

dpkg: warning: 'ldconfig' not found in PATH or not executable

dpkg: warning: 'start-stop-daemon' not found in PATH or not executable

dpkg: error: 2 expected programs not found in PATH or not executable

Note: root's PATH should usually contain /usr/local/sbin, /usr/sbin and /sbin

Any ideas what to do?

Zitat von macom

What is the output of

echo $PATH?

Hi macom!

The output is /usr/local/bin:/usr/bin:/bin:/usr/local/games:/usr/games (run as root)

Zitat von macom

You should add

/usr/local/sbin:/usr/sbin:/sbin

to your path. Here is described how to do it.

https://linuxhint.com/add-directory-to-path-linux/#2

TLDR;
Isn't apt install usrmerge enough?!?

Zitat von macom

You should add

/usr/local/sbin:/usr/sbin:/sbin

to your path. Here is described how to do it.

https://linuxhint.com/add-directory-to-path-linux/#2

Hi macom.

Following the instructions provided I added /usr/local/sbin:/usr/sbin:/sbin

I am now able to run dpkg --configure -a.

Just confirming the grub boot loader should be running off the omv system drive? (sdf)

Zitat von macom

Yes, choose the system drive

All working, thank you!

Hi everyone, thanks for keeping this thread alive and open.

Some months ago, I cloned my USB-boot flash drive that was dying to a more robust model.

I did not know that I had to do something more, back then, until recent OMV6 update that presented this grub-pc error.

So remotely (only, not near OMV) I ran dpkg --configure -a and made sure as iNTiGOD asked, and macom confirmed, to tag/tick/mark the BOOT DEVICE and not the root partition (there was also a root / entry like yours iNTiGOD).

However, after the console confirms "Setting up grub-pc", then "Installing for i386-pc platform", then "Generating grub configuration file" I would like to ask you: what CLI command is there to check if GRUB is valid and works? How to check if the drive is the one I selected?

I found there's an updated /boot/grub/grub.cfg file but... was hoping for something more user-friendly.

Running again dpkg --configure -a and does not produce CLI results, any more (which is good but... was hoping for some confirmation dialog or something).

Thank you...

Hello everyone, I am returning to ask the wise members here, if there exists a CLI command to check if GRUB is valid and works as expected? How to check if the drive is the one I selected? I run dpkg --configure -a on CLI and I have no output, error or confirmation. Thank you.

N.B. I found debconf-show grub-pc is this proper for OMV6 or later?

% debconf-show grub-pc

  grub2/kfreebsd_cmdline:
  grub-pc/timeout: 5
  grub-pc/disk_description:
  grub-pc/install_devices_failed_upgrade: true
  grub-pc/install_devices_failed: false
  grub-pc/hidden_timeout: false
  grub-pc/postrm_purge_boot_grub: false
* grub-pc/install_devices: /dev/disk/by-id/usb-Samsung_Flash_Drive_FIT_0347022110004932-0:0
  grub-pc/kopt_extracted: false
  grub2/force_efi_extra_removable: false
  grub-pc/chainload_from_menu.lst: true
* grub2/linux_cmdline:
* grub2/linux_cmdline_default: quiet
  grub2/update_nvram: true
  grub-pc/mixed_legacy_and_grub2: true
  grub-pc/install_devices_empty: false
  grub-pc/partition_description:
  grub2/kfreebsd_cmdline_default: quiet
* grub-pc/install_devices_disks_changed: /dev/disk/by-id/usb-Samsung_Flash_Drive_FIT_0347022110004932-0:0