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To add a string to your cmos.layout, you need to specify type 's': #start len type unused name 416 512 s 0 boot_devices With this patch you can do $ nvramtool -w boot_devices="(hd0,0);(hd2,1);(hd3)" And FILO will attempt to load a menu.lst from any of these devices in that order. The patch is not exactly pretty, but a cleaner solution might have resulted in a complete rewrite of the tool, which I did not want. Signed-off-by: Stefan Reinauer <stepan@coresystems.de> Acked-by: Joseph Smith <joe@settoplinux.org> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@3613 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
19 lines
894 B
Text
19 lines
894 B
Text
Summary of Operation
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nvramtool is a utility for reading/writing coreboot parameters and
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displaying information from the coreboot table. It is intended for x86-based
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systems (both 32-bit and 64-bit) that use coreboot.
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The coreboot table resides in low physical memory, and may be accessed
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through the /dev/mem interface. It is created at boot time by coreboot, and
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contains various system information such as the type of mainboard in use. It
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specifies locations in the CMOS (nonvolatile RAM) where the coreboot
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parameters are stored.
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For information about coreboot, see http://www.coreboot.org/.
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Ideas for Future Improvements
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1. Move the core functionality of this program into a shared library.
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2. Consider adding options for displaying other BIOS-provided information
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such as the MP table, ACPI table, PCI IRQ routing table, etc.
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