Dual Boot: The Unix BSD System, NetBSD, as main OS with full Xorg/Desktop and Linux for rescue usage
Make /dev/sda1 for maybe 500 Gb (here on this disk) with MBR
- create a rescue space /dev/sda2 for Linux (ext3) - 16Gb would be enough for CTWM and Xorg.
Once formated, mount /dev/sda2 /target and install Linux (Slack, Fedora, Devuan,...) using classical method. The debootstrap for Devuan using deploy-devuan.sh is recommend there.
Installer to install on WD0, edit MBR and install then the main NetBSD system on the space of 500 GB (here in this example).
here the url for i386 image (daily): https://nycdn.netbsd.org/pub/NetBSD-daily/netbsd-8/latest/images/NetBSD-8.1_STABLE-i386-install.img.gz
pkg install ... as usual and then
create /grub with its config file as indicated below.
First of all, either download the package, using pkgin install grub2, or build it yourself from package sources (/usr/pkgsrc/sysutils/grub2).
After that, generate a GRUB configuration file, which tells GRUB the positions of the operating system(s). The following command will generate such a file, while adding your NetBSD system into it's list.
Now, install GRUB into your hard drive's master boot record (MBR). You have to know it's device name for this step (e.g. /dev/rwd0a). Exchange /dev/rwd0a with your desired device name, then change /dev/rXXXa to /dev/rwXXXd to access the raw disk, as in the following example:
Device name : /dev/rwd0a Direct access : /dev/rwd0d The appropriate grub-install command for this drive would be:
Hopefully, it should return : Installation finished. No error reported. If it does so, simply reboot the system and you should be greeted by a nice OS-selector. If not, recheck your device names, if that doesn't fix it, search the web for the error message. Even though there aren't that much resources about GRUB on NetBSD, you'll find a lot of information at GNU/Linux-related sites which apply to this scenario as well.