Date: Tue, 4 Nov 2008 08:41:31 -0800 From: Jeremy Chadwick <koitsu@FreeBSD.org> To: Kevin <k@kevinkevin.com> Cc: freebsd-stable@freebsd.org, jhb@freebsd.org Subject: Re: DL360 G3 w/ AMD64 Cant boot from CD Message-ID: <20081104164131.GA52756@icarus.home.lan> In-Reply-To: <001b01c93e98$fe2e7b60$fa8b7220$@com> References: <000001c93e35$9d456790$d7d036b0$@com> <20081104045809.GA38528@icarus.home.lan> <000f01c93e7a$0a146210$1e3d2630$@com> <20081104124853.GA48015@icarus.home.lan> <001b01c93e98$fe2e7b60$fa8b7220$@com>
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On Tue, Nov 04, 2008 at 11:18:36AM -0500, Kevin wrote: > > > I tried 7.1-BETA2 , but unfortunately the same problem happened. I > > tried > > > (for the sake of argument) Debian debian-40r5-amd64 , and it wouldn't > > boot > > > either -- it said "Your CPU does not support long mode, please use a > > 32bit > > > distribution". > > > > This means your processor does not support 64-bit mode. > > > > > How would I support over 4GB of ram with only i386 distributions? > > > > There is only one option: use PAE mode, which has drawbacks. You can > > read about what PAE is on Wikipedia. > > > > Note that not all drivers are PAE mode compatible on FreeBSD. You > > should be able to install i386 FreeBSD with success, then rebuild your > > kernel with PAE enabled. Look at /sys/i386/conf/PAE for an example > > configuration -- you'll see all of the drivers you have to disable for > > PAE to work successfully. If your system uses any of these drivers, > > PAE > > mode will not work for you, in which case you should upgrade your > > hardware. > > > > -- > > | Jeremy Chadwick jdc at parodius.com | > > | Parodius Networking http://www.parodius.com/ | > > | UNIX Systems Administrator Mountain View, CA, USA | > > | Making life hard for others since 1977. PGP: 4BD6C0CB | > > > Is my issue related to non-supporting of 64bit mode (2x Dual Xeons in the > DL360 G3) , or perhaps due to a boot loader bug? > > I found this PR : > > 91492 freebsd- amd64 feedback serious medium current-us [boot] BTX > halted There have been a number of recent reports of "BTX halted" on all sorts of hardware. So far each problem has been unique; there doesn't appear to be a "thing" that explains it for everyone. > In any case , the latest 6.4/7.1 Snapshot produced the same BTX Halt error. > I'll just use i386 w/ PAE for now I suppose. I haven't tested AMD64 with > DL360 G4's or DL360 G5's , but I'd appreciate if anyone has tested those > generations w/ FreeBSD AMD64 , to let me know if the problem persists in > some form. John Baldwin will have to correct me if I'm wrong, but I'm fairly sure the FreeBSD bootstraps operate in pure i386 real mode up until boot2/loader. John, can you confirm? -- | Jeremy Chadwick jdc at parodius.com | | Parodius Networking http://www.parodius.com/ | | UNIX Systems Administrator Mountain View, CA, USA | | Making life hard for others since 1977. PGP: 4BD6C0CB |
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