Hardcoding serial line

M

minimike

Hi

I have set up a multiboot environment on one Zpool like Solaris using Grub2. It works :)
Each System is stored in one ZFS Subvolume. Grub2 is installed manually in the Top of the Pool.

Code: 
insmod serial
serial --speed=9600 --unit=0 --word=8 --parity=no --stop=1
terminal_output serial
terminal_input serial

# Timeout for menu
set timeout=5

# Set default boot entry as Entry 0
set default=0

        menuentry "FreeBSD 8.1 RELEASE AMD64 on pool/freebsd81" {
          kfreebsd /freebsd81@/boot/kernel/kernel
          kfreebsd_module_elf /freebsd81@/boot/kernel/opensolaris.ko
          kfreebsd_module_elf /freebsd81@/boot/kernel/zfs.ko
          kfreebsd_module_elf /freebsd81@/boot/kernel/smbus.ko
          kfreebsd_module_elf /freebsd81@/boot/kernel/ipmi.ko
          kfreebsd_module /freebsd8@/boot/zfs/zpool.cache type=/boot/zfs/zpool.cache
          set kFreeBSD.vfs.root.mountfrom=zfs:pool/freebsd81
}

        menuentry "FreeBSD 8.2 BETA AMD64 on pool/freebsd82" {
          kfreebsd /freebsd82@/boot/kernel/kernel
          kfreebsd_module_elf /freebsd82@/boot/kernel/opensolaris.ko
          kfreebsd_module_elf /freebsd82@/boot/kernel/zfs.ko
          kfreebsd_module_elf /freebsd82@/boot/kernel/smbus.ko
          kfreebsd_module_elf /freebsd82@/boot/kernel/ipmi.ko
          kfreebsd_module /freebsd82@/boot/zfs/zpool.cache type=/boot/zfs/zpool.cache
          set kFreeBSD.vfs.root.mountfrom=zfs:pool/freebsd82
}
 
       menuentry "Debian KfreeBSD Rescue AMD64 on pool/debian" {
          kfreebsd /debian@/boot/kfreebsd-8.1-1-amd64.gz
          kfreebsd_module_elf /debian@/lib/modules/8.1-1-amd64/opensolaris.ko
          kfreebsd_module_elf /debian@/lib/modules/8.1-1-amd64/zfs.ko
          kfreebsd_module_elf /debian@/lib/modules/8.1-1-amd64/smbus.ko
          kfreebsd_module_elf /debian@/lib/modules/8.1-1-amd64/ipmi.ko
          kfreebsd_module /debian@/boot/zfs/zpool.cache type=/boot/zfs/zpool.cache
          set kFreeBSD.vfs.root.mountfrom=zfs:pool/debian
}

My Problem is, without the FreeBSD Bootloader doesn't start the console on serial line on Boot. Are they options to compile it hardcoded like in the Kernel? Because kernel -h doesn't works too.
 
I start FreeBSD with GRUB2 instead Loader. Thats why I am asking. There is only one Partition with ZFS for all systems.

best regards
Darko
 
Hi!

I found this old thread while googling for a different problem but I think I know the solution in case it still helps: Try adding this to the grub2 entry:
Code: 
kfreebsd_loadenv /boot/device.hints
Or in your case:
Code: 
kfreebsd_loadenv /freebsd8@/boot/device.hints

And pass -h to the kernel so it switches to the serial console:
Code: 
kfreebsd /freebsd81@/boot/kernel/kernel -h
And/or pass console vars to the kernel:
Code: 
set kFreeBSD.console=comconsole
And should you want a different speed than 9600bps:
Code: 
set kFreeBSD.comconsole_speed=115200
HTH, :)
Juergen

PS: I didn't actually test this so there _may_ be more needed to get it working...
 
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