Classic Mac netboot

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evilmoo
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Classic Mac netboot

Post by evilmoo »

Has anyone ever heard about a netboot feature on the Classic Macs? This was before PXE was ever invented, or TCP/IP ever became so widespread.

compgeke
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Re: Classic Mac netboot

Post by compgeke »

The G3 systems were the first to support netboot. (Only macs with a "New World ROM" has support.

evilmoo
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Re: Classic Mac netboot

Post by evilmoo »

This is not true. I have disassembled the OS ROMs and several of them have a ".netBOOT" driver embedded in them. I haven't ever found any information related to whatever server process or device this causes the machine to search for, however.

I believe it is activated by booting with command-option-N-B.

As further evidence, from a collection of Mac OS ROMs:

$ grep -i -l netboot *
0024D346 - Powerbook Duo 270.ROM
015621D7 - Powerbook 280&280c.ROM
064DC91D - Performa 580 & 588.ROM
06684214 - Quadra 630.ROM
3193670E - Classic II.ROM
350EACF0 - Mac LC.ROM
35C28F5F - Mac LCII.ROM
36B7FB6C - Mac IIsi.ROM
3DC27823 - Quadra 950.ROM
4147DD77 - Mac IIfx.ROM
420DBFF3 - Quadra 700&900 & PB140&170.ROM
4957EB49 - MacIIvx & IIvi.ROM
5BF10FD1 - Quadra 660av & 840av.ROM
63ABFD3F - Power Mac & Performa 5200,5300,6200,6300.ROM
9B7A3AAD - Power Mac 7100 (newer).ROM
9FEB69B3 - Power Mac 6100 & 7100 & 8100.ROM
A49F9914 - Classic (with XO ROMDisk).rom
B6909089 - PowerBook 520&520c&540&540c.ROM
E33B2724 - Powerbook 160 & 165c & 180 & 180c.ROM
EC904829 - LCIII (older).ROM
ECBBC41C - Mac LCIII.ROM
ECD99DC0 - Color Classic.ROM
ECFA989B - Powerbook 210,230,250.ROM
EDE66CBD - Color Classic II & LC 550 & Performa 275,550,560 & Macintosh TV.ROM
F1A6F343 - Centris 610,650.ROM
F1ACAD13 - Quadra 610,650,maybe 800.ROM
FDA22562 - Powerbook 150.ROM
FF7439EE - Quadra 605.ROM

bbraun
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Re: Classic Mac netboot

Post by bbraun »

evilmoo wrote:This is not true. I have disassembled the OS ROMs and several of them have a ".netBOOT" driver embedded in them. I haven't ever found any information related to whatever server process or device this causes the machine to search for, however.

I believe it is activated by booting with command-option-N-B.
I've tried this on a couple of the listed machines with no apparent effect. Nearly all of the listed machines did not come with Ethernet cards, so I find it unlikely this code ever referred to Ethernet. However, the IIgs could netboot of sorts off of AppleTalk over LocalTalk. Perhaps this code referred to something similar.

blackholemac
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Re: Classic Mac netboot

Post by blackholemac »

I want to direct this topic to the following address:

http://www.afp548.com/netboot/mactips/netboot.html

Mike Bombich knows the technology behind NetBoot very well...In the OS 8-9 world, booter would be replaced with the Mac OS ROM file and it goes over the afp protocol instead of NFS as discussed in the article.

bbraun
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Re: Classic Mac netboot

Post by bbraun »

I'm not sure "Classic Macs" includes newworld machines. This certainly does not apply to of the machines referenced in the ".netBOOT" post.

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