krad wrote:
On 31 March 2010 04:53, Fbsd1 <fb...@a1poweruser.com> wrote:
Dan Nelson wrote:
In the last episode (Mar 30), Fbsd1 said:
During the boot process I want to change the device used to boot from.
From the default 0:ad(0,a)/boot/loader
to 0:da(0,a)/boot/loader forcing the boot to continue from usb stick.
Here is the problem, the bios have no option to boot from USB device. So
thinking let the bios point to first drive to start the boot process and
have a /boot.config file to redirect to booting from the USB stick. I am
assuming the '0' zero will mean the first USB device.
Is there any command i can use to verify the single USB stick is the 0
device?
If you boot DOS from a floppy, can you see the USB stick as B: or C: ? If
not, then the BIOS probably has no USB support at all, and you'll need to
put a small boot partition somewhere on your hard drive to pull the kernel
from. 128MB is large enough for a /boot directory, and you can set
vfs.root.mountfrom="ufs:/dev/da0s1a" in loader.conf to make it mount its
root filesystem from the USB stick (since at that point the kernel has
loaded its own USB drivers).
If you do see the USB drive from a DOS boot floppy, try entering
"1:da(0,a)?" at the boot block prompt and see if it lists the files in
your
USB filesystem. If it does, then "1:da(0,a)/boot/loader" should let you
boot FreeBSD.
The USB stick is plugged in before booting. During boot I select option 6
from Freebsd menu to go direct to the loader prompt. I have ok on command
line. I enter
vfs.root.mountfrom="ufs:/dev/da0s1a" and get "not found" after hitting
enter key.
At the ok prompt I enter ? for list of available boot devices and only have
ad0 listed.
It seems the da0 device USB stick is not recognized yet.
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try legacy usb in the bios, it may help
My bios have no reference to USB at all.
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