Date: Sun, 23 Nov 2003 12:02:44 -0800 (PST) From: Robert Watson <rwatson@FreeBSD.org> To: Perforce Change Reviews <perforce@freebsd.org> Subject: PERFORCE change 42969 for review Message-ID: <200311232002.hANK2iVT017759@repoman.freebsd.org>
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http://perforce.freebsd.org/chv.cgi?CH=42969 Change 42969 by rwatson@rwatson_powerbook on 2003/11/23 12:02:01 Correct a typo in sample nvram command. Talk about the virtues of a backup kernel. Affected files ... .. //depot/projects/trustedbsd/sedarwin/bootstrap_instructions.txt#17 edit Differences ... ==== //depot/projects/trustedbsd/sedarwin/bootstrap_instructions.txt#17 (text+ko) ==== @@ -231,7 +231,7 @@ boot-device mac-io/ata-4@1f000/@0:5,\\:tbxi auto-boot? true boot-screen - % sudo nvram boot-file=mac-io/ata-4@1f00/@0:5,/mach_kernel.sedarwin + % sudo nvram boot-file=mac-io/ata-4@1f000/@0:5,/mach_kernel.sedarwin Note that the boot-file variable consists if {bootdevice},{filename}, and that the bootdevice is extracted from the more confusing @@ -245,6 +245,15 @@ to "-v" to get a text-based boot with console messages, rather than the pretty but less informative Apple logo, etc. + We've found that boot-time failure modes with Darwin are a bit hard + to diagnose, and problems booting a new kernel frequent result in a + hang with the Apple logo showing. This can be a result of + incorrect permissions for the kernel file, among other things. We + recommend keeping a safe backup of your original mach_kernel in case + of accidental overwrite: + + sudo cp /mach_kernel /mach_kernel.safe + Step 10: Build, Install "Libkvm" cd apsl/Libkvm
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