Annotation of www/macppc.html, Revision 1.49
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1.1 brad 17: <p>
1.33 miod 18: <h2><font color="#e00000">OpenBSD/macppc</font></h2>
19:
20: <hr>
21:
22: <p>
23: OpenBSD/macppc runs on the PowerPC-based Macintosh systems from the
24: <i>``New World''</i> family, i.e. all Apple computers from the iMac to current
1.39 ian 25: models. It does not run any <a href="#unsup">unsupported models</a>.
1.33 miod 26: </p>
27:
28: <p>
1.41 nick 29: A mailing list dedicated to the OpenBSD/macppc port is available at
1.33 miod 30: <u><font color="#23238e">ppc@openbsd.org</font></u>.
31: To join the OpenBSD/macppc mailing list, send a message body of <b>"subscribe
32: ppc"</b> to
33: <a href="mailto:majordomo@openbsd.org">majordomo@openbsd.org</a>.
34: Please be sure to check our <a href="mail.html">mailing list policy</a> before
35: subscribing.
36: </p>
37:
38: <p>
39: The current port maintainer is Dale Rahn
40: (<a href="mailto:drahn@openbsd.org">drahn@openbsd.org</a>).
1.41 nick 41: Others are definitely welcome to contribute!
1.33 miod 42: </p>
43:
44: <a href="#toc"></a>
45: <h3><font color="#0000e0"><i>Table of contents</i></font></h3>
46: <p>
47: <ul>
1.38 jufi 48: <li><a href="#history">History of the port</a>
1.33 miod 49: <li><a href="#status">Current status</a>
50: <li><a href="#projects">Project list</a>
1.36 miod 51: <li><a href="#hardware">Supported hardware list</a>
1.33 miod 52: <li><a href="#install">Getting and installing OpenBSD/macppc</a>
53: <li><a href="#multiboot">Multiboot/Shared HFS disks</a>
54: <li><a href="#root">Boot device considerations</a>
55: <li><a href="#problems">Known problems</a>
56: <li><a href="#other">Other features</a>
57: </ul>
58: </p>
59:
60: <hr>
61: <a name="history"></a>
62: <h3><font color="#0000e0"><strong>History:</strong></font></h3>
63:
64: <p>
65: The OpenBSD/macppc port started as OpenBSD/powerpc, and was initially
66: focused on Motorola computers with OpenFirmware, and VI Power4e boards.
67: This port was eventually thrown away after OpenBSD 2.5 was released.
68: As a result there was no OpenBSD/powerpc port for the 2.6 and 2.7 releases.
69: In the meantime, a new port was started, focusing on Apple hardware, and
70: based on code from NetBSD/macppc, and after a lot of work from Dale Rahn,
71: OpenBSD 2.8 was released with a powerpc port.
72: As work on the port continued, it was renamed to OpenBSD/macppc for 3.0.
73: </p>
74:
75: <hr>
76: <a name="status"></a>
77: <h3><font color="#0000e0"><strong>Current status:</strong></font></h3>
78:
79: <p>
80: Currently, all the hardware listed in the
81: <a href="#hardware">supported hardware list</a> section below boots
82: multi-user, supports most, if not all, of the on-board devices, and is
83: generally useable.
84: </p>
85:
86: <a name="X11"></a>
87: <p>
1.44 jmc 88: XFree86 is supported on all MacPPC systems, however
1.33 miod 89: only the ATI graphics adapters are supported by an <i>accelerated</i>
90: X server at the current time.
91: The nVidia accelerated X server does not currently work, however nVidia
1.41 nick 92: (and ATI) cards can be used by X in frame buffer (unaccelerated) mode,
1.33 miod 93: at the boot resolution and color depth using the wsfb driver (installed by
94: default).
95: </p>
96:
97: <p>
98: Directions on enabling the accelerated X server can be found
99: in the <tt>/usr/X11R6/README</tt> file on the installed system.
100: </p>
101:
1.32 jufi 102: <hr>
1.33 miod 103: <a name="projects"></a>
104: <h3><font color="#0000e0"><strong>Projects (in no particular order):
105: </strong></font></h3>
1.1 brad 106:
107: <p>
108: <ul>
1.33 miod 109: <li>Work on unsupported on-board devices
110: <li>Fix known problems
111: <li>Improve port-specific documentation
112: <li>Test more platforms and peripherals, especially PCI drivers
113: </ul>
114: </p>
115:
116: <hr>
117: <a name="hardware"></a>
118: <h3><font color="#0000e0"><strong>Supported hardware:</strong></font></h3>
1.11 drahn 119:
120: <p>
1.33 miod 121: <h4>Supported models</h4>
122: </p>
1.11 drahn 123:
1.28 henning 124: <p>
1.33 miod 125: PowerPC-based Macintosh systems are divided into <i>"Old World"</i> and
126: <i>"New World"</i> systems, the difference being
127: <a href="http://developer.apple.com/technotes/tn/tn1167.html">the design
128: of the system ROM</a>.
129: Only <i>"New World"</i> machines are currently supported.
130: Known compatible systems include the following:
1.13 nick 131: <ul>
1.33 miod 132: <li>PowerMac G3 (B&W)
133: <li><a href="http://docs.info.apple.com/article.html?artnum=58418">PowerMac G4
134: </a> (PCI Graphics? - untested but should work)
135: <li>PowerMac G4 (AGP Graphics)
136: <li>PowerMac G4 (Digital Audio)
137: <li>PowerMac G4 (QuickSilver)
138: <li>PowerMac G4 (QuickSilver 2002)
1.47 drahn 139: <li>PowerMac G4 (Mirror Door Drive)
140: <li>PowerMac G4 (FW 800)
1.33 miod 141: <li>PowerMac Dual G4
142: <li>PowerMac G4 Cube
143: <li>iMac Rev A
144: <li>iMac Rev B
145: <li>iMac Rev C
146: <li>iMac DV
147: <li>iMac DV+
148: <li>LCD iMac
149: <li>PowerBook G3 (FireWire)
150: <li>PowerBook G4
1.47 drahn 151: <li>PowerBook G4 12", 17"
1.33 miod 152: <li>iBook
153: <li>iBook2 <i>(problems with Combo drive thought to be fixed in 3.1)</i>
154: <li>Xserve <i>(currently only running on serial console with video card removed)</i>
155: <li>StarMax <i>(development in progress)</i>
156: <li>others... <i>(development in progress)</i>
1.11 drahn 157: </ul>
1.33 miod 158: To help us improve the accuracy of this list, <b>PLEASE</b>
159: <a href="faq/faq4.html#SendDmesg">send your dmesg</a> after installation
160: to <a href="mailto:dmesg@openbsd.org">dmesg@openbsd.org</a>.
161: </p>
1.11 drahn 162:
1.33 miod 163: <p>
164: <h4>Supported peripherals</h4>
165: </p>
1.1 brad 166:
1.33 miod 167: <p>
1.15 deraadt 168: <ul>
169: <li><strong>Onboard I/O modules</strong> (obio)
1.1 brad 170: <ul>
171: <li>Apple Paddington
172: <li>Apple Keylargo
173: </ul>
174:
1.15 deraadt 175: <li><strong>PCI-Bridges</strong>
1.32 jufi 176: (<a href="http://www.openbsd.org/cgi-bin/man.cgi?query=pchb&sektion=4">pchb</a>)
1.1 brad 177: <ul>
178: <li>Apple Uni-North
179: <li>Apple Uni-North AGP
180: <li>Apple Uni-North Eth
181: <li>Motorola MPC106 Host-PCI
182: </ul>
183:
1.15 deraadt 184: <li><strong>Video Cards</strong>
1.1 brad 185: <ul>
186: <li>ATI Mach64 GP
187: <li>ATI Mach64 GV
188: <li>ATI Mach64 128 PK
189: <li>ATI Mach64 128 VR AGP
190: <li>ATI Mobility M3
191: <li>ATI Rage Fury AGP4x
192: </ul>
193:
1.15 deraadt 194: <li><strong>Ethernet</strong>
1.1 brad 195: <ul>
1.32 jufi 196: <li>DEC DECchip 21040 (Tulip) (<a href="http://www.openbsd.org/cgi-bin/man.cgi?query=de&sektion=4">de</a>)
197: <li>DEC DECchip 21143 (Tulip clones) (<a href="http://www.openbsd.org/cgi-bin/man.cgi?query=dc&sektion=4">dc</a>)
198: <li>Intel i8255x-based (except the i82556) PCI adapters (<a href="http://www.openbsd.org/cgi-bin/man.cgi?query=fxp&sektion=4">fxp</a>), including:
1.26 pvalchev 199: <ul>
200: <li>Intel EtherExpress PRO/10+
201: <li>Intel EtherExpress PRO/100, PRO/100B, and PRO/100+
202: <li>Intel EtherExpress PRO/100+ "Management Adapter"
203: <li>Intel EtherExpress PRO/100 Dual Port
204: <li>Intel PRO/100 VE, PRO/100 VM, and PRO/100 S
205: </ul>
1.27 henning 206: <li>Intel 21145-based PCI adapters (<a href="http://www.openbsd.org/cgi-bin/man.cgi?query=dc&sektion=4">dc</a>)
1.32 jufi 207: <li>Apple iMac Rev. A-C Ethernet (<a href="http://www.openbsd.org/cgi-bin/man.cgi?query=bm&sektion=4&arch=powerpc">bm</a>)
208: <li>Apple GMAC (<a href="http://www.openbsd.org/cgi-bin/man.cgi?query=gem&sektion=4">gem</a>)
209: <li>Alteon Tigon I/II-based adapters (<a href="http://www.openbsd.org/cgi-bin/man.cgi?query=ti&sektion=4">ti</a>), including:
1.30 nate 210: <ul>
211: <li>3Com 3c985 and 3c985B
212: <li>Alteon ACEnic V (fiber and copper)
213: <li>Digital EtherWORKS 1000SX
214: <li>Farallon PN9000SX
215: <li>Netgear GA620 and GA620T
216: <li>SGI Tigon
217: </ul>
218:
1.31 margarid 219: <li>Intel i82540, i82542, i82543, i82544, i82545, and i82546 based adapters
1.32 jufi 220: (<a href="http://www.openbsd.org/cgi-bin/man.cgi?query=em&sektion=4">em</a>),
1.25 nate 221: including:
222: <ul>
223: <li> Intel PRO/1000 Gigabit Server Adapter (SX Fiber) (PWLA8490)
224: <li> Intel PRO/1000F Gigabit Server Adapter (SX Fiber) (PWLA8490SX)
225: <li> Intel PRO/1000T Server Adapter (PWLA8490T)
226: <li> Intel PRO/1000XT Server Adapter (PWLA8490XT)
227: <li> Intel PRO/1000XS Server Adapter (SX Fiber) (PWLA8490XF)
228: <li> Intel PRO/1000T Desktop Adapter (PWLA8390T)
229: <li> Intel PRO/1000XTL Lo Profile PCI Server (PWLA8490XTL)
230: <li> Intel PRO/1000MT Desktop Adapter (PWLA8390MT)
231: <li> Intel PRO/1000MT Server Adapter (PWLA8490MT)
232: <li> Intel PRO/1000MT Dual Port Server Adapter (PWLA8492MT)
233: <li> Intel PRO/1000MF Server Adapter (SX Fiber) (PWLA8490MF)
234: <li> Intel PRO/1000MF Dual Port Server Adapter (SX Fiber) (PWLA8492MF)
235: <li> Intel PRO/1000MF Server Adapter (LX Fiber) (PWLA8490LX)
236: </ul>
1.1 brad 237: </ul>
238:
1.15 deraadt 239: <li><strong>Wireless Ethernet Adapters</strong>
1.1 brad 240: <ul>
1.32 jufi 241: <li>Aironet 802.11DS PCI (<a href="http://www.openbsd.org/cgi-bin/man.cgi?query=an&sektion=4">an</a>)
242: <li>WaveLAN 802.11DS onboard airport slot, PCI and CardBus (<a href="http://www.openbsd.org/cgi-bin/man.cgi?query=wi&sektion=4">wi</a>)
1.41 nick 243: <li>Prism II and Prism 2.5 PCI and Cardbus (<a href="http://www.openbsd.org/cgi-bin/man.cgi?query=wi&sektion=4">wi</a>). See <a href="i386.html">i386</a> for a complete list.
1.1 brad 244: </ul>
1.15 deraadt 245:
246: <li><strong>SCSI and IDE Host Adapters</strong>
1.1 brad 247: <ul>
1.32 jufi 248: <li>Symbios Logic 53c810, 53c825 (<a href="http://www.openbsd.org/cgi-bin/man.cgi?query=siop&sektion=4">siop</a>)
1.43 drahn 249: <li>Adaptec AIC-7770-based SCSI host adapters (including the
250: Adaptec AHA-274x and AHA-284x families). (<a href="http://www.openbsd.org/cgi-bin/man.cgi?query=ahc&sektion=4">ahc</a>)
251: <li>Adaptec AHA-[23]94x[W] cards and some on-board PCI designs using the
252: AIC7870 and AIC7880 chips. (<a href="http://www.openbsd.org/cgi-bin/man.cgi?query=ahc&sektion=4">ahc</a>) <sup>(C)</sup>
253: <li>Adaptec AHA-[23]9[34]xU[2W] cards and on-board PCI designs using the
254: AIC789[01], AIC7895, AIC789[67] chips. (<a href="http://www.openbsd.org/cgi-bin/man.cgi?query=ahc&sektion=4">ahc</a>)
255: <li>Adaptec AIC-789[29] chips and products like the AHA-29160 based upon it
256: which do 160MB/sec SCSI. (<a href="http://www.openbsd.org/cgi-bin/man.cgi?query=ahc&sektion=4">ahc</a>)
257: (However, the 7899G card is currently not supported with more than one device attached)
1.13 nick 258: <li>All PCI IDE
1.32 jufi 259: (<a href="http://www.openbsd.org/cgi-bin/man.cgi?query=pciide&sektion=4">pciide</a>)
1.13 nick 260: adapters supported by the <a href="i386.html">i386</a> platform
1.1 brad 261: </ul>
262:
1.15 deraadt 263: <li><strong>RAID Controllers</strong>
1.1 brad 264: <ul>
1.32 jufi 265: <li>Adaptec SCSI RAID (<a href="http://www.intelligent-io.com/">I2O</a>) controllers (ASR-2100S, ASR-3200S, etc.) (<a href="http://www.openbsd.org/cgi-bin/man.cgi?query=iop&sektion=4">iop</a>)
1.1 brad 266: </ul>
267:
1.15 deraadt 268: <li><strong>Drives</strong>
1.1 brad 269: <ul>
270: <li>All IDE devices supported on the <a href="i386.html">i386</a>.
271: <li>All ATAPI drives supported on the <a href="i386.html">i386</a>.
272: <li>All SCSI drives supported on the <a href="i386.html">i386</a>.
273: </ul>
274:
1.15 deraadt 275: <li><strong>USB Controllers/Hubs</strong>
1.1 brad 276: <ul>
1.32 jufi 277: <li>Apple USB (<a href="http://www.openbsd.org/cgi-bin/man.cgi?query=ohci&sektion=4">ohci</a>)
278: <li>OHCI root hub (<a href="http://www.openbsd.org/cgi-bin/man.cgi?query=ohci&sektion=4">ohci</a>)
279: <li>Opti RM861HA (<a href="http://www.openbsd.org/cgi-bin/man.cgi?query=ohci&sektion=4">ohci</a>)
1.1 brad 280: <li>Alps Electric Hub in Apple USB Keyboard
281: </ul>
282:
1.15 deraadt 283: <li><strong>USB Devices</strong>
1.1 brad 284: <ul>
1.32 jufi 285: <li>Alps Electric Apple USB Keyboard (<a href="http://www.openbsd.org/cgi-bin/man.cgi?query=ukbd&sektion=4">ukbd</a>)
286: <li>Solid Year Keyboard and Mouse (<a href="http://www.openbsd.org/cgi-bin/man.cgi?query=ukbd&sektion=4">ukbd</a>) (<a href="http://www.openbsd.org/cgi-bin/man.cgi?query=ums&sektion=4">ums</a>)
287: <li>Logitech M4848 (<a href="http://www.openbsd.org/cgi-bin/man.cgi?query=ums&sektion=4">ums</a>)
1.40 david 288: <li>Kensington USB/PS2 Wheel Mouse (<a href="http://www.openbsd.org/cgi-bin/man.cgi?query=ums&sektion=4">ums</a>)
1.32 jufi 289: <li>USB Zip Drives (<a href="http://www.openbsd.org/cgi-bin/man.cgi?query=umass&sektion=4">umass</a>)
1.1 brad 290: </ul>
291:
1.33 miod 292: <li><strong>Cardbus/PCMCIA bridges</strong>
1.19 drahn 293: <ul>
1.41 nick 294: <li>PBG4 onboard CardBus bridge is now supported, as are PCI CardBus bridges.
1.32 jufi 295: (<a href="http://www.openbsd.org/cgi-bin/man.cgi?query=cbb&sektion=4">cbb</a>)
1.19 drahn 296: <li>Orinoco/Prism cards are only current supported cards
1.32 jufi 297: (<a href="http://www.openbsd.org/cgi-bin/man.cgi?query=wi&sektion=4">wi</a>)
1.19 drahn 298: </ul>
1.41 nick 299: <li><strong>Cryptography Accelerators</strong>
1.21 drahn 300: <ul>
1.49 ! jason 301: <li>Broadcom uBsec BCM5801, BCM5802, BCM5805, BCM5820, BCM5821, BCM5822, BCM5823 (and the legacy Bluesteelnet 5501 and 5601 parts)(<a href="http://www.openbsd.org/cgi-bin/man.cgi?query=ubsec&sektion=4">ubsec</a>)
1.32 jufi 302: <li>Hifn 6500-based boards (<a href="http://www.openbsd.org/cgi-bin/man.cgi?query=lofn&sektion=4">lofn</a>)
303: <li>Hifn 7751-based boards (<a href="http://www.openbsd.org/cgi-bin/man.cgi?query=hifn&sektion=4">hifn</a>), including:
1.29 jason 304: <ul>
305: <li>Soekris Engineering vpn1201 and vpn1211
306: <li>GTGI PowerCrypt Encryption Accelerator
307: <li>NetSec 7751
1.42 jason 308: <li>Hifn 7751 and 9751 reference boards
1.29 jason 309: <li>Invertex AEON
310: </ul>
1.48 jason 311: <li>SafeNet SafeXcel 1141/1741 (<a href="http://www.openbsd.org/cgi-bin/man.cgi?query=safe&sektion=4">safe</a>)
1.21 drahn 312: </ul>
1.19 drahn 313:
1.46 jason 314: <li><strong>Audio Devices</strong>
315: <ul>
316: <li>AWACS (<a href="http://www.openbsd.org/cgi-bin/man.cgi?query=awacs&sektion=4&arch=macppc">awacs</a>)
317: <li>Ensoniq AudioPCI (<a href="http://www.openbsd.org/cgi-bin/man.cgi?query=eap&sektion=4">eap</a>)
318: <li>USB audio (<a href="http://www.openbsd.org/cgi-bin/man.cgi?query=uaudio&sektion=4">uaudio</a>)
319: </ul>
320:
1.37 mickey 321: <li><strong>Radio Receiver Devices</strong> (<a href="http://www.openbsd.org/cgi-bin/man.cgi?query=radio&sektion=9">radio</a>)
322: <ul>
323: <li>Brooktree 848/849/878/879-based TV tuner cards (<a href="http://www.openbsd.org/cgi-bin/man.cgi?query=bktr&sektion=4">bktr</a>)
324: </ul>
325:
1.15 deraadt 326: <li><strong>Other Devices</strong>
1.13 nick 327: <ul>
328: <li>Serial Ports: While the modern PowerMacintosh series has no external
329: standard serial ports, many have an on-board modem which can be
330: removed and replaced with an adapter (several manufacturers of these exist)
331: which will produce a standard (and supported) serial port.
1.21 drahn 332: <li>Firewire device now probes and is configured, but no devices will attach
333: on the firewire bus, yet.
1.35 miod 334: <li>Backlight on lcd devices can be controlled through the brightness control
335: keys on ADB (laptop) keyboards, or through'wsconsctl -w display.brightness=xx'
1.21 drahn 336: (0 - 100) and 'wsconsctl -w display.backlight=xx' (0 or 100)
1.37 mickey 337: <li>Brooktree 848/849/878/879-based video capture cards (<a href="http://www.openbsd.org/cgi-bin/man.cgi?query=bktr&sektion=4">bktr</a>), including:
338: <ul>
339: <li>Hauppage Wincast TV
340: <li>STB TV PCI Television Tuner
341: <li>Miro PC TV
342: <li>Intel Smart Video Recorder III
343: <li>IMS TV Turbo
344: <li>AVer Media TV/FM
345: </ul>
1.15 deraadt 346: </ul>
1.28 henning 347: </ul>
1.33 miod 348: </p>
349:
1.1 brad 350: <p>
1.22 drahn 351: <a name="unsup"></a>
1.33 miod 352: <h4>Unsupported Hardware</h4>
353: </p>
354:
355: <p>
1.1 brad 356: <ul>
1.39 ian 357: <li>Any older Mac with a 4-digit part number (6100, 7300, 7500,
358: 8500, 9500).
1.33 miod 359: <li>Older Apple PowerMac systems with a 601 processor or lacking
360: OpenFirmware are not supported.
1.13 nick 361: <li>Older OpenFirmware machines are not currently supported.
362: This is mostly due to lack of developer resources and limited
363: availability of hardware.
364: <li>Built-in modems on most machines are not supported. In many systems,
365: the serial port the modem is attached to is supported, but the modem
366: itself is not supported.
367: <li>Newer PowerBooks have an internal modem attached as a USB device, these
368: are not supported.
369: <li>The new 'digital audio' subsystem on iBooks and newer PBG4, G4 and iMacs
370: is not supported.
1.33 miod 371: <li>Sleep/Suspend on laptops is not supported.
1.47 drahn 372: <li>Airport Extreme is not supported, no available docs.
373: <li>Bluetooth is not supported.
374: <li>Multi-speed laptops are not adjustable.
1.1 brad 375: </ul>
1.33 miod 376: </p>
377:
1.36 miod 378: <hr>
379: <a name="install"></a>
380: <h3><font color="#0000e0">
381: <strong>Getting and installing OpenBSD/macppc:</strong>
382: </font></h3>
383:
384: <p>
385: The latest supported OpenBSD/macppc release is
1.45 miod 386: <a href="33.html">OpenBSD 3.3</a>.
1.36 miod 387: Here are the
1.45 miod 388: <a href="ftp://ftp.OpenBSD.org/pub/OpenBSD/3.3/macppc/INSTALL.macppc">
389: OpenBSD/macppc 3.3 installation instructions
1.36 miod 390: </a>.
391: </p>
392:
393: <p>
394: Snapshots are made available from time to time, in
395: <a href="ftp://ftp.OpenBSD.org/pub/OpenBSD/snapshots/macppc">this location</a>
396: as well as in a few
397: <a href="ftp.html">mirrors</a>.
398: Here are the
399: <a href="ftp://ftp.OpenBSD.org/pub/OpenBSD/snapshots/macppc/INSTALL.macppc">
400: OpenBSD/macppc snapshot installation instructions
401: </a> as well.
402: </p>
403:
404: <p>
405: There are several installation media provided:
406: <ul>
407: <li><strong>CD boot</strong>
408: <p>
409: With the OpenBSD CD inserted in the cdrom drive, powering the machine on
410: while leaving the ``C'' key pressed will bootstrap the installation
411: procedure.
412: Alternatively, the CD can be booted at the OpenFirmware prompt, with
413: <pre>
1.45 miod 414: boot cd:,ofwboot 3.3/macppc/bsd.rd
1.36 miod 415: </pre>
416: </p></li>
417: <li><strong>MacOS-based boot</strong>
418: <p>
419: If the system disk is shared with MacOS, the <tt>ofwboot</tt> boot loader
420: and the <tt>bsd.rd</tt> installation media can be copied to the first HFS
421: or HFS+ partition.
422: Then the installation procedure can be booted at the OpenFirmware prompt,
423: with
424: <pre>
425: boot hd:,ofwboot bsd.rd
426: </pre>
427: </ul>
428: </p>
429:
430: <a name="multiboot"></a>
431: <h3><font color="#0000e0">Multiboot/Shared HFS disks:</font></h3>
432: <p>
433: Having OpenBSD multiboot, or share, a disk with OS X/MacOS 9
434: is possible as long as the disk is first partitioned with the
435: MacOS utility, <i>Drive Setup</i> (MacOS 9) or <i>System Disk
436: Utility</i> (MacOS X).
437: Unallocated space, or a partition not in use, must be left for OpenBSD's use.
438: Since OpenBSD is only able to boot from HFS (not MacOS X UFS) filesystem,
439: the first partition must formated as HFS or HFS+, not UFS, to be able to boot
440: OpenBSD.
441: </p>
442:
443: <p>
444: Please refer to the installation instructions for more details on how to
445: install a shared disk.
446: Standalone (no MacOS present) installation is also supported.
447: </p>
448:
449: <a name="root"></a>
450: <h3><font color="#0000e0">Boot device considerations:</font></h3>
451: <p>
452: Modern MacPPC systems have two IDE interfaces (called Ultra and IDE), each of
453: which can have two devices on them (ultra0, ultra1, ide0, ide1).
454: When multiple drives are present in the system, there are limitations
455: of which drives can be configured as the OpenBSD root drive.
456: Invalid configurations will not be able to properly
457: detect which drive is the root drive, so any attempt will either
458: prompt for a root drive or fail.
459: </p>
460:
461: <p>
462: <ul>
463: <li><tt>ultra0</tt> is always a valid root drive.
464: <li><tt>ultra1</tt> is valid as a root disk, as long as <tt>ultra0</tt>
465: is a hard drive, not a non-hard disk ATAPI device).
466: <li><tt>ide1</tt> (Zip drive bay) is valid as a root disk if no hard drive is
467: located at <tt>ultra1</tt>,
468: <li><tt>ide0</tt> (cdrom) is valid as a root drive <b>only</b> if no hard
469: drives are connected to the Ultra bus.
470: </ul>
471: </p>
472:
473: <hr>
1.33 miod 474: <a name="problems"></a>
475: <h3><font color="#0000e0">Known Problems</font></h3>
476:
1.1 brad 477: <p>
1.33 miod 478: <ul>
479: <li>Laptop systems may power off within 2-5 minutes if the lid is closed
480: while running from battery.
481: <li>Older iMacs can have a problem with the USB keyboard driver where
482: the first key pressed after boot will repeat endlessly. The workaround
483: is to press <SHIFT> first or to disconnect and reconnect the USB mouse
484: after the problem has occurred.
485: </ul>
486: </p>
1.1 brad 487:
1.36 miod 488: <hr>
1.33 miod 489: <a name="other"></a>
490: <h3><font color="#0000e0">Other Features</font></h3>
1.1 brad 491:
1.5 miod 492: <p>
1.33 miod 493: <ul>
494: <li> <CTRL><CMD><POWER> on ADB (not USB) keyboards
495: will reset the computer.
496: </ul>
1.5 miod 497: </p>
498:
1.1 brad 499: <hr>
1.33 miod 500: <a href="plat.html">
501: <img height="24" width="24" src="back.gif" border="0" alt="Supported platforms">
502: </a>
503: <br>
504: <small><a href="mailto:www@openbsd.org">www@openbsd.org</a></small>
1.1 brad 505: <br>
1.49 ! jason 506: <small>$OpenBSD: macppc.html,v 1.48 2003/08/14 15:34:16 jason Exp $</small>
1.1 brad 507:
508: </body>
509: </html>
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