[Head_on_a_Stick]

Originally Posted by diortem

Is there a secondary install guide to theirs, that walks through the dual/triple boot scenario? I will be triple-booting, Windows on [SSD] sda, File Storage on [7200rpm, platter HDD] sdb, Fedora on [SSD] sdc, and BSD on [SSD] sdd.

The FAQ used to have a section pertaining to GRUB but it's been removed.

Try this stanza in /boot/grub/custom.cfg in your Fedora system:

menuentry 'OpenBSD' {
   set root=(hd3,1)
   chainloader +1
}

https://www.gnu.org/software/grub/ma...in_002dloading

That presumes a non-UEFI system with OpenBSD installed to /dev/sdd1

For a UEFI system use this instead:

menuentry 'OpenBSD' {
   set root=(hdX,Y)
   chainloader /EFI/BOOT/bootx64.efi
}

Replace X & Y with the correct identifiers for the EFI system partition.

It might be best to use the UUID rather than the block device, to do that replace the set root= line with

search --fs-uuid $uuid --set=root

Replace $uuid with the actual UUID of the target partition.

If you have any problems then it's probably best to start a new thread because this is off-topic here.