Date: Fri, 20 Oct 2006 12:39:16 +0200 From: Miroslav Lachman <000.fbsd@quip.cz> To: "Bruce M. Simpson" <bms@FreeBSD.org> Cc: Dominic Marks <dom@goodforbusiness.co.uk>, CyberSans AirBort <cybersans@gmail.com>, freebsd-stable@freebsd.org, John Baldwin <jhb@freebsd.org> Subject: Re: bug on BTX Message-ID: <4538A754.3070502@quip.cz> In-Reply-To: <45382F43.6020509@FreeBSD.org> References: <15af975d0609212321r29fdd287p462ae0f2b7e404b4@mail.gmail.com> <15af975d0609220725s1206d7ebr53589adbc1b9c17@mail.gmail.com> <4513F5B0.9030300@goodforbusiness.co.uk> <200609261305.12224.jhb@freebsd.org> <451A3E33.8010805@goodforbusiness.co.uk> <45382F43.6020509@FreeBSD.org>
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Bruce M. Simpson wrote: [...] > Indeed I recently ran into this myself. Certain 1U machines which I > acquired had problems booting from USB CDROM. I traced this back to the > USB BIOS trying to LGDT and causing a general protection fault in vm86 > mode. I worked around this by PXE booting them on a private VLAN with > most helpful assistance from dwhite@. I can confirm this problem. I can boot from DVD-RW in external enclosure (USB 2.0) on my desktop PC and few others I tested in the past, but can not boot any FreeBSD release on servers in collocation (from the same external DVD-RW). Tested with some Asus server boards and 1U Sun Fire X2100. But these machines can boot from another boot CD I have (Hirens Boot CD, RIP Linux, Ultimate Boot CD, OpenBSD) I'll be happy if this can be solved in some feature release of FreeBSD, because I managed many servers without internal CD/DVD drive. I do not understand this part of system well, but let me know if I can provide some more information about systems where I can boot well or where I can not boot FreeBSD from USB CD / DVD. Miroslav Lachman
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