Date: Wed, 31 Mar 2010 12:08:36 +0100 From: krad <kraduk@googlemail.com> To: Fbsd1 <fbsd1@a1poweruser.com> Cc: Dan Nelson <dnelson@allantgroup.com>, FreeBSD Questions <freebsd-questions@freebsd.org> Subject: Re: /boot.config Message-ID: <d36406631003310408u4308f144v36598206ba0698fb@mail.gmail.com> In-Reply-To: <4BB2C734.1070301@a1poweruser.com> References: <4BB19257.6020108@a1poweruser.com> <20100330151708.GA16258@dan.emsphone.com> <4BB2C734.1070301@a1poweruser.com>
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On 31 March 2010 04:53, Fbsd1 <fbsd1@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. > > _______________________________________________ > freebsd-questions@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-questions > To unsubscribe, send any mail to " > freebsd-questions-unsubscribe@freebsd.org" > try legacy usb in the bios, it may help
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