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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
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<HTML
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>SCO OpenServer 5.0.5</TITLE
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>Bochs User Manual</TH
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>Prev</A
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></TD
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><TD
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>Chapter 9. Guest operating systems</TD
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><H1
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CLASS="SECTION"
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><A
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NAME="GUEST-OSR5"
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>9.16. SCO OpenServer 5.0.5</A
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></H1
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><P
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>Contributed by Carl Sopchak</P
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><P
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>You must read the message regarding software licenses in
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<A
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HREF="thirdparty.html"
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>Section 1.6</A
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> before you install SCO OpenServer 5.0.5 as a guest operating system in Bochs.</P
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><P
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>Back in April and May of 2002, I did some work on Bochs
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in order to get it to install and boot SCO's OpenServer 5.0.5 (OSR5).
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Since that time, I have had several e-mails asking about this error message
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or that. The newsgroup posts done at the time had all of the information that I knew,
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so I pointed people there. (I had not used Bochs since...)
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In February of 2003, I got another such e-mail.
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Since the sender indicated they were willing to pay me to get this going for them,
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I agreed to spend a few hours on it (for free, which is not common :-}). Subsequently,
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I decided to document this once and for all. (I did not charge anyone anything, this time...)</P
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><P
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>Note: These steps were originally used with Bochs 1.4.1 (or thereabouts,
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since I was using CVS heavily at the time). It is possible (likely) that later versions of Bochs
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are more tolerant/bug free, and this install may be abbreviated. However, I have not tried
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to streamline it at all.</P
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><P
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>These steps were performed and confirmed using Bochs version 2.0.2, and SCO OpenServer version 5.0.5.
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The host OS was Red Hat Linux 8.0.</P
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><P
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>First, I downloaded the tarball, and extracted the source tree. I decided to use the tarball
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instead of the RPM so that I knew what options were compiled in, etc.
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<TABLE
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BORDER="0"
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BGCOLOR="#E0E0E0"
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WIDTH="100%"
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><TR
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><TD
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><PRE
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CLASS="SCREEN"
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>linux-$ tar -xzvf bochs-2.0.2.tar.gz</PRE
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></TD
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></TR
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></TABLE
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></P
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><P
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>Next, I configured and compiled Bochs...
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<TABLE
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BORDER="0"
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BGCOLOR="#E0E0E0"
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WIDTH="100%"
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><TR
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><TD
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><PRE
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CLASS="SCREEN"
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>linux-$ cd bochs-2.0.2
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linux-$ ./configure --enable-cdrom --enable-ne2000 --enable-host-specific-asms
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linux-$ make</PRE
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></TD
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></TR
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></TABLE
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>
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The --enable-host-specific-asms should only be used if the host OS is an Intel x86 based OS.</P
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><P
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>I then created my disk image:
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<TABLE
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BORDER="0"
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BGCOLOR="#E0E0E0"
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WIDTH="100%"
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><TR
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><TD
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><PRE
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CLASS="SCREEN"
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>linux-$ ./bximage
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========================================================================
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bximage
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Disk Image Creation Tool for Bochs
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========================================================================
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Do you want to create a floppy disk image or a hard disk image?
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Please type hd or fd. [hd] hd
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What kind of image should I create?
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Please type flat, sparse or growing. [flat]
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Enter the hard disk size in megabytes, between 1 and 32255
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[10] 2048
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I will create a hard disk image with
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cyl=4161
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heads=16
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sectors per track=63
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total sectors=4194288
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total size=2047.99 megabytes
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What should I name the image?
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[c.img] hd0.img
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Writing: [] Done.
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I wrote 2147475456 bytes to hd0.img.
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The following line should appear in your .bochsrc:
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ata0-master: type=disk, path="hd0.img", cylinders=4161, heads=16, spt=63</PRE
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></TD
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></TR
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></TABLE
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></P
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><P
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>I then created my .bochsrc file. I did this via the interactive portion of Bochs, with the
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end result as follows:
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<TABLE
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BORDER="0"
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BGCOLOR="#E0E0E0"
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WIDTH="100%"
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><TR
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><TD
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><PRE
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CLASS="PROGRAMLISTING"
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>floppya: 1_44="/dev/fd0", status=inserted
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floppyb: 1_44="b.img", status=inserted
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ata0: enabled=1, ioaddr1=0x1f0, ioaddr2=0x3f0, irq=14
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ata0-master: type=disk, path="hd0.img", cylinders=4161, heads=16, spt=63, translation=auto, biosdetect=auto, model="Generic 1234"
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ata0-slave: type=cdrom, path="/dev/cdrom", status=inserted, biosdetect=auto, model="Generic 1234"
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ata1: enabled=0
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ata2: enabled=0
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ata3: enabled=0
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romimage: file=bios/BIOS-bochs-latest
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vgaromimage: file=bios/VGABIOS-lgpl-latest
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megs: 64
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parport1: enabled=1, file="lp.pipe"
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com1: enabled=0
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# no sb16
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boot: cdrom
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floppy_bootsig_check: disabled=0
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vga_update_interval: 300000
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keyboard_serial_delay: 250
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keyboard_paste_delay: 100000
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cpu: ips=3000000
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clock: sync=realtime, time0=0
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text_snapshot_check: 0
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mouse: enabled=0
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private_colormap: enabled=0
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i440fxsupport: enabled=0
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# no ne2k
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# no loader
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log: osr5.log
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logprefix: %t-%e-%i%d
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debugger_log: -
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panic: action=ask
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error: action=report
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info: action=report
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debug: action=ignore
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pass: action=fatal
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keyboard_mapping: enabled=0, map=
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keyboard_type: mf
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user_shortcut: keys=none
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config_interface: textconfig
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display_library: x</PRE
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></TD
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></TR
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></TABLE
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>
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Some important things to note are that you want to boot from the cdrom, and you do NOT want the ne2000
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card configured initially. (We'll add that later...)</P
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><P
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>At this point, Bochs is ready to roll! Insert the OSR5 install CD into the drive, and start Bochs.
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You should soon see the SCO "boot:" prompt:
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<TABLE
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BORDER="0"
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BGCOLOR="#E0E0E0"
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WIDTH="100%"
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><TR
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><TD
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><PRE
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CLASS="SCREEN"
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>SCO OpenServer(TM) Release 5
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boot
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: defbootstr disable=fdi,dptr</PRE
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></TD
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></TR
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></TABLE
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>
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Note the disable= parameter that you need. These two SCO drivers cause the install to fail, so they
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need to be disabled for the install boot. You will not need this once OSR5 is installed.</P
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><P
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>During the install of OSR5, there are two default configuration answers that need to be changed.
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For the hard disk setup, you should turn bad tracking off, since it's unnecessary on an emulated disk.
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(It won't hurt to do it, it will just take a VERY long time!)
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For the network setup, change the network card to Deferred. You can change other settings, if you so
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desire. However, I would do the initial install with as little configured as you can get away with, then
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add whatever else is needed (one step at a time) after the initial install completes.</P
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><P
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>Let the install copy the files. Go get lunch. Take a nap. Go have dinner...
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This can take a LONG time. On my Pentium 4 1.7GHz system, this
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step took just over eight hours! (BTW, it was MUCH longer in version 1.4.1. Great job, guys!)</P
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><P
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>After the install finishes, you will need to change the following lines in .bochsrc file:
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<TABLE
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BORDER="0"
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BGCOLOR="#E0E0E0"
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WIDTH="100%"
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><TR
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><TD
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><PRE
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CLASS="PROGRAMLISTING"
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>ne2k: ioaddr=0x300, irq=10, mac=b0:c4:20:00:00:00, ethmod=linux, ethdev=eth0
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boot: disk</PRE
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></TD
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></TR
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></TABLE
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>
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Obviously, if you're not using Linux, the ethmode and ethdev values on the ne2k line will be different.
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Also, since Bochs uses "raw" network card access, you'll have to "setuid root" on the Bochs executable:
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<TABLE
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BORDER="0"
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BGCOLOR="#E0E0E0"
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WIDTH="100%"
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><TR
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><TD
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><PRE
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CLASS="SCREEN"
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>linux-$ chown root bochs
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linux-$ chmod u+s bochs</PRE
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></TD
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></TR
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></TABLE
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>
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(If there is a way to give a "normal user" CAP_NET_RAW capability, that would be an alternative.
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I don't know how to do that...)
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Restart Bochs. Now, you can just press Enter at the OSR5 boot: prompt, because the offending
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drivers have been linked out of the kernel.</P
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><P
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>Before you configure the network card, I'd strongly suggest getting the latest "nat" driver from SCO.
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Version 5.0.5b of this driver, according to the SCO web site, "correct[s] possible system lockup
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under high load due to internal buffer overflow." The driver can be found
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<A
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HREF="ftp://ftp.caldera.com/pub/openserver5/drivers/OSR505/network/nat"
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TARGET="_top"
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>here</A
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>.
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To get the Disk Image file into SCO, I downloaded the VOL.000.000 file to my linux box,
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and used tar to get it on to a floppy:
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<TABLE
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BORDER="0"
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BGCOLOR="#E0E0E0"
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WIDTH="100%"
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><TR
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><TD
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><PRE
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CLASS="SCREEN"
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>linux-$ tar -cvf /dev/fd0 VOL.000.000</PRE
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></TD
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></TR
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></TABLE
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>
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I then used tar within OSR5 to move it from the floppy to the /tmp directory:
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<TABLE
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BORDER="0"
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BGCOLOR="#E0E0E0"
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WIDTH="100%"
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><TR
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><TD
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><PRE
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CLASS="SCREEN"
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>osr5-# cd /tmp
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osr5-# tar -xvf /dev/fd0135ds18</PRE
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></TD
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></TR
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></TABLE
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>
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You can then use 'custom' to install the driver from the image file.
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You will then want to use 'scoadmin network' to configure the network card. Choose
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the Novell NE2000 card, and set the parameters to match the ne2k: line in the .bochsrc file.
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DO NOT have OSR5 look for the card, as Bochs may likely crash. (It did in version 1.4.1.)</P
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><P
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>You can also configure a printer, if you want. Using the spoolpipe utility that I wrote
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(which can be found in Bochs' misc directory), you can print from OSR5 through the parallel
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port, and you'll hardly notice
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that the printing is going through an extra layer of operating system!
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(You could also set up a printer using network printing, if the printer is not on the host machine...)</P
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><P
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>Obviously, dont forget to apply the release supplements and other patches that are considered
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"must haves" for OSR5: rs505a, oss600a, oss497b (others?). </P
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><P
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>That's about as far as I have got. I played around with OSR5 within Bochs a bit, but I
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can by no means say that I did any kind of real testing, let alone exhaustive testing.</P
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><P
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>And of course, YMMV! :-)</P
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>Windows XP</TD
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