debian11-debian12 grub

debian:~# update-grub
Generating grub configuration file …
Found background image: /usr/share/images/desktop-base/desktop-grub.png
Found linux image: /boot/vmlinuz-6.1.0-9-amd64
Found initrd image: /boot/initrd.img-6.1.0-9-amd64
Found linux image: /boot/vmlinuz-5.10.0-23-amd64
Found initrd image: /boot/initrd.img-5.10.0-23-amd64
Found linux image: /boot/vmlinuz-5.10.0-18-amd64
Found initrd image: /boot/initrd.img-5.10.0-18-amd64
Warning: os-prober will not be executed to detect other bootable partitions.
Systems on them will not be added to the GRUB boot configuration.
Check GRUB_DISABLE_OS_PROBER documentation entry.
Adding boot menu entry for UEFI Firmware Settings …
done

debian:~# cd /boot/grub
debian:/boot/grub# ls
fonts grub.cfg grubenv locale unicode.pf2 x86_64-efi
debian:/boot/grub# cd /etc/default/
debian:/etc/default# ls
anacron console-setup grub im-config nfs-common saned
avahi-daemon cron grub.d keyboard nfs-kernel-server ssh
bluetooth dbus hddtemp locale nss useradd
cacerts google-chrome hwclock networking rpcbind
debian:/etc/default# vim grub

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=false
GRUB_DISABLE_OS_PROBER=false

debian:/etc/default# update-grub
Generating grub configuration file …
Found background image: /usr/share/images/desktop-base/desktop-grub.png
Found linux image: /boot/vmlinuz-6.1.0-9-amd64
Found initrd image: /boot/initrd.img-6.1.0-9-amd64
Found linux image: /boot/vmlinuz-5.10.0-23-amd64
Found initrd image: /boot/initrd.img-5.10.0-23-amd64
Found linux image: /boot/vmlinuz-5.10.0-18-amd64
Found initrd image: /boot/initrd.img-5.10.0-18-amd64
Warning: os-prober will be executed to detect other bootable partitions.
Its output will be used to detect bootable binaries on them and create new boot entries.
Found Windows Boot Manager on /dev/nvme0n1p1@/efi/Microsoft/Boot/bootmgfw.efi
Adding boot menu entry for UEFI Firmware Settings …
done