i've installed freebsd 12 at 2nd partition of usb disk
after installation and reboot, bullseye's grub appears, bullseye is
installed at 1st partition
i suppose freebsd installer has found existing boot loader, it decide to
let grub or me to take care of booting bsd
but i'm inexperienced, i've run update-grub, it doesn't add bsd to grub
menu.
how to add bsd entry to grub menu? below is menu for bullseye:
menuentry 'Debian GNU/Linux' --class debian --class gnu-linux --class
gnu --class os $menuentry_id_option
'gnulinux-simple-1a99c626-2623-438f-b730-797dc4db34d5' {
load_video
insmod gzio
if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
insmod part_msdos
insmod ext2
set root='hd1,msdos1'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd1,msdos1
--hint-efi=hd1,msdos1 --hint-baremetal=ahci1,msdos1
1a99c626-2623-438f-b730-797dc4db34d5
else
search --no-floppy --fs-uuid --set=root
1a99c626-2623-438f-b730-797dc4db34d5
fi
echo 'Loading Linux 5.10.0-20-686-pae ...'
linux /boot/vmlinuz-5.10.0-20-686-pae
root=UUID=1a99c626-2623-438f-b730-797dc4db34d5 ro quiet
echo 'Loading initial ramdisk ...'
initrd /boot/initrd.img-5.10.0-20-686-pae
}
