use loader to load kernel.gz and mfsroot.gz in an ext2 filesystem

[刘 扬]

Hi,sorry to bother you^-^

I have a problem about the loader of freebsd

I put loader,kernel.gz and mfsroot.gz in an ext2(dos) file system on
harddisk,and want to directly use grub or use grub and freebsd loader(or
other manner?) to boot the system.

But when I use grub to transfer freebsd loader,I find it(freebsd loader)
can't read files of ext2(dos),and when i use grub 0.93 of redhat 9.0 to
directly load mfsroot.gz by "initrd /mfsroot.gz",it fails for "linux kernel
must be loaded before initrd".

My goal is to put install.cfg,freebsd kernel and mfsroot on harddisk,then
boot from harddisk into freebsd,and install it with original freebsd cd.

Any one help?
Any answers are appreciated,^-^.

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[M. Warner Losh]

: I put loader,kernel.gz and mfsroot.gz in an ext2(dos) file system on
: harddisk,and want to directly use grub or use grub and freebsd loader(or
: other manner?) to boot the system.

You'll need to add support to libstand to read ext2 and/or DOS file
systems. That's the first step...

Warner

[Dan Nelson]

Post by M. Warner Losh
: I put loader,kernel.gz and mfsroot.gz in an ext2(dos) file system
: on harddisk,and want to directly use grub or use grub and freebsd
: loader(or other manner?) to boot the system.
You'll need to add support to libstand to read ext2 and/or DOS file
systems. That's the first step...

Libstand already supports both, and they are included into /boot/loader
( see the file_system[] array in /sys/boot/i386/loader/conf.c ), so it
should be able to boot off of both filessytems just fine.

[Kamal R. Prasad]

Is it possible to load the loader on redboot, then
have the loader tftp the kernel over ethernet?

thanks
-kamal

Post by 刘 扬

Post by M. Warner Losh
: I put loader,kernel.gz and mfsroot.gz in an

ext2(dos) file system

Post by M. Warner Losh
: on harddisk,and want to directly use grub or use

grub and freebsd

Post by M. Warner Losh
: loader(or other manner?) to boot the system.
You'll need to add support to libstand to read

ext2 and/or DOS file

Post by M. Warner Losh
systems. That's the first step...

Libstand already supports both, and they are
included into /boot/loader
( see the file_system[] array in
/sys/boot/i386/loader/conf.c ), so it
should be able to boot off of both filessytems just
fine.
--
Dan Nelson
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Post by 刘 扬
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[Dan Nelson]

Post by Kamal R. Prasad
Is it possible to load the loader on redboot, then
have the loader tftp the kernel over ethernet?

There is a PXE version of the loader (pxeboot) that will load a kernel
from tftp or nfs, but it requires a dhcp server to get the server's IP
and its kernel filename from.

[刘 扬]

But when I do this,
Boot from the Ext2(or Dos) partition with grub
And then use loader from the partition
It says "Can't find kernel/kernel.old"
Then I use the "ls" of loader by "ls "
It says " ' ' is bad path "
what's that??

Subject: Re: use loader to load kernel.gz and mfsroot.gz in an ext2

filesystem

Date: Wed, 26 Jan 2005 10:30:48 -0600

Post by M. Warner Losh
: I put loader,kernel.gz and mfsroot.gz in an ext2(dos) file system
: on harddisk,and want to directly use grub or use grub and freebsd
: loader(or other manner?) to boot the system.
You'll need to add support to libstand to read ext2 and/or DOS file
systems. That's the first step...

Libstand already supports both, and they are included into /boot/loader
( see the file_system[] array in /sys/boot/i386/loader/conf.c ), so it
should be able to boot off of both filessytems just fine.
--
Dan Nelson

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