Hi,

On Thu, Jun 4, 2026 at 11:12 AM Philippe Delavalade <
[email protected]> wrote:

> [...]
> How can I progress ?


is /boot an uefi partition? something like this:

Is /boot is configured as a UEFI partition, something as follows:

```
$ mount | grep boot
/dev/nvme0n1p1 on /boot type vfat
(rw,relatime,fmask=0022,dmask=0022,codepage=437,iocharset=ascii,shortname=mixed,utf8,errors=remount-ro)

$ sudo parted /dev/nvme0n1 print
[...]
Number  Start   End    Size   File system  Name  Flags
 1      1049kB  538MB  537MB  fat32              boot, esp
 2      538MB   512GB  512GB
```

Confirm the existence of the GRUB UEFI boot entry by running efibootmgr:

```
$ efibootmgr
```

If the entry is missing, you can create one using a command like the
following:

```
efibootmgr -c -d /dev/nvme0n1 -p 5 -L GRUB -l '\EFI\GRUB\grubx64.efi'
```

Best,
/m

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