Changes between Version 2 and Version 3 of chomsky.mayfirst.org


Ignore:
Timestamp:
Aug 6, 2008, 7:47:44 PM (11 years ago)
Author:
Daniel Kahn Gillmor
Comment:

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  • chomsky.mayfirst.org

    v2 v3  
    1010
    1111I'm not sure what else we can do with this machine.
     12
     13Since it has no graphics card, and [http://ozlabs.org/pipermail/linuxppc-dev/2003-March/014959.html ofboot (the typical first-stage bootloader) tries to force output to the graphics card], the standard boot process fails.
     14
     15This is resolved by telling Open Firmware to bypass `ofboot` entirely, and go straight to `yaboot`.  This is done by setting the nvram this way:
     16
     17{{{
     180 roy:~# nvram --print-config=boot-device
     19hd:2,yaboot
     200 roy:~#
     21}}}
     22
     23So the boot process (from the serial line) looks like this during a healthy boot:
     24{{{
     25Apple RackMac1,1 4.4.4f1 BootROM built on 06/22/02 at 00:22:19
     26Copyright 1994-2002 Apple Computer, Inc.
     27All Rights Reserved.
     28
     29Welcome to Open Firmware, the system time and date is: 23:23:44 08/06/2008
     30
     31To continue booting, type "mac-boot" and press return.
     32To shut down, type "shut-down" and press return.
     33
     34 ok
     350 > boot load-size=24948 adler32=2a9e7dac
     36
     37Loading ELF
     38
     39
     40Config file read, 620 bytes
     41
     42Welcome to yaboot version 1.3.13
     43Enter "help" to get some basic usage information
     44boot: Linux
     45Please wait, loading kernel...
     46   Elf32 kernel loaded...
     47Loading ramdisk...
     48ramdisk loaded at 01a00000, size: 7326 Kbytes
     49OF stdout device is: /pci@f2000000/pci-bridge@d/mac-io@7/escc@13000/ch-a@13020
     50command line: console=ttyS0,9600 console=tty0
     51memory layout at init:
     52  alloc_bottom : 02128000
     53  alloc_top    : 20000000
     54  alloc_top_hi : 20000000
     55  rmo_top      : 20000000
     56  ram_top      : 20000000
     57Looking for displays
     58}}}