Date: Mon, 16 Oct 2006 14:42:11 -0400 From: John Baldwin <jhb@freebsd.org> To: freebsd-mobile@freebsd.org Subject: Re: Install FreeBSD on an external (usb) hard drive? Message-ID: <200610161442.11781.jhb@freebsd.org> In-Reply-To: <20061012220203.b203cacd.torfinn.ingolfsen@broadpark.no> References: <20060930033359.f40f65a8.torfinn.ingolfsen@broadpark.no> <20061008032416.dbd08821.torfinn.ingolfsen@broadpark.no> <20061012220203.b203cacd.torfinn.ingolfsen@broadpark.no>
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On Thursday 12 October 2006 16:02, Torfinn Ingolfsen wrote: > On Sun, 08 Oct 2006 03:24:16 +0200 > Torfinn Ingolfsen <torfinn.ingolfsen@broadpark.no> wrote: > > > On Mon, 02 Oct 2006 20:41:14 +0200 > > Torfinn Ingolfsen <torfinn.ingolfsen@broadpark.no> wrote: > > > > > I guess it is (another) bios problem on the Acer Aspire AS5672. > > > > Interestingly, the NetBSD boot loader boots NetBSD fine from an usb > > hard drive on the AS5672: http://tingox.googlepages.com/as5672_netbsd > > It (the NetBSD boot loader) also boots OpenBSD fine from an external > hard drive, see http://tingox.googlepages.com/as5672_openbsd > > However, when I try to boot FreeBSD 6.2-beta2 (installed on slice 3 on > that external usb hard drive), it fails again. > > Is there a problem somewhere in the initial boot of FreeBSD which makes > boot from an usb hard drive impossible? The short version is that BIOS writers are generally lazy and sloppy, and their broken code tends to trip up FreeBSD more often since we use a stricter boot environment (we run the BIOS in vm86 mode meaning the BIOS can't enter protected mode itself whereas msot other OS's at this point run the BIOS in real mode). -- John Baldwin
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