iPXE-menu for a second linux on the Hd

[robert70569]

Hello,
I would like to boot a second linux distro from the harddisk. Till now I have an Windows and an Debian (boots from /dev/sdb3) on that disk. I installed an second Linux (Kali) on /dev/sdb6. But how has to be the iPXE-Menu for that constellation.
For Windows I difined an “fog.local” with the parameter
“chain -ar http://<fogserver>/fog/service/ipxe/grub.exe --config-file=rootnoverify (hd1);chainloader (hd1)+1 || MENU”
For the first Linux there is an “fog.linux” with the parameter
“chain tftp://<fogserver>/boot/grub/i386-pc/core.0 || goto MENU”
This Linux boots witch help from /tftpboot/boot/grub/grub.cfg

menuentry 'Linux' --class ubuntu --class gnu-linux --class gnu --class os {
        insmod biosdisk
        insmod part_msdos
        insmod ntfs
        set root=(hd1,3)
        if [ -f /ubuntu/disks/root.disk ]; then
                loopback loop0 /ubuntu/disks/root.disk
                set root=(loop0)
                linux   /vmlinuz root=/dev/sdb3 loop=/ubuntu/disks/root.disk rw rootflags=sync splash nomdmonddf nomdmonisw  vt.handoff=7
                initrd  /initrd.img
        else
                set root=(hd1,3)
                linux   /vmlinuz root=/dev/sdb3 rw splash vt.handoff=7
                initrd  /initrd.img
        fi
}

If I change /dev/sdb3 with /dev/sdb6 in this grub.cfg the second Linux will boot, but howto integrate both Linux distros ?
Thanks for help.

[Sebastian Roth]

@robert70569 There are several ways of getting another Linux distro booted.

One way would be to add another menuentry to your existing /tftpboot/boot/grub/grub.cfg. Maybe you need to add a timeout value for grub to display a menu for you to select one of the two. That way you end up with two menu selections.

Another way might be using grub.exe, e.g.:

chain -ar http://<fogserver>/fog/service/ipxe/grub.exe --config-file=root=(hd2,6);kernel /vmlinuz root=/dev/sdb6 rw;initrd /initrd.img || goto MENU

This is untested. Just trying to come up with some ideas for you to play with. Find a list of possible commands on the web - take a look at find as well.

A third way you might look into is embedding a grub.cfg into your core.0 binary. That way you could create one binary for Debian and another one for Kali.

[robert70569]

@sebastian-roth
ok, add another menuentry to /tftpboot/boot/grub/grub.cfg
and add an timeout worked. But there will be a second menu to select one of the two menuentry. Not so nice, but it works.
I could not find a working chain-syntax for the grub.exe.
Embedding a grub.cfg into your core.0 binary I didnt test yet.