Here is my code from grub config:
>
> If you change this file, run 'update-grub' afterwards to update
> # /boot/grub/grub.cfg.
> For full documentation of the options in this file, see:
> info -f grub -n 'Simple configuration'
>
> GRUB_DEFAULT="Ubuntu"
> GRUB_TIMEOUT_STYLE="menu"
> GRUB_TIMEOUT="10"
> GRUB_DISTRIBUTOR="( . /etc/os-release; echo ${NAME:-Ubuntu} ) 2>/dev/null || echo Ubuntu"
> GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"
> GRUB_CMDLINE_LINUX=""
>
> If your computer has multiple operating systems installed, then you
> probably want to run os-prober. However, if your computer is a host
> for guest OSes installed via LVM or raw disk devices, running
> os-prober can cause damage to those guest OSes as it mounts
> filesystems to look for things.
> GRUB_DISABLE_OS_PROBER="true"
>
> Uncomment to enable BadRAM filtering, modify to suit your needs
> This works with Linux (no patch required) and with any kernel that obtains
> the memory map information from GRUB (GNU Mach, kernel of FreeBSD ...)
> #GRUB_BADRAM="0x01234567,0xfefefefe,0x89abcdef,0xefefefef"
>
> Uncomment to disable graphical terminal
> #GRUB_TERMINAL="console"
>
> The resolution used on graphical terminal
> note that you can use only modes which your graphic card supports via VBE
> you can see them in real GRUB with the command `vbeinfo'
> #GRUB_GFXMODE="640x480"
>
> Uncomment if you don't want GRUB to pass "root=UUID=xxx" parameter to Linux
> #GRUB_DISABLE_LINUX_UUID="true"
>
> Uncomment to disable generation of recovery mode menu entries
> #GRUB_DISABLE_RECOVERY="true"
>
> Uncomment to get a beep at grub start
> #GRUB_INIT_TUNE="480 440 1"
>
> GRUB_SAVEDEFAULT="false"
> #GRUB_HIDDEN_TIMEOUT="4"
What needs to be done?
I cannot find decision for this
I have tried both automatic system search and grub-update
. I don’t know what to do about it. Windows and Ubuntu are installed in /dev/nvme0n1