This emulation mode attempts to emulate a Motorola MVME187 machine. Note that these were based on Motorola 88000 processors, not 68000.
It is possible to run OpenBSD/mvme88k on an emulated Motorola MVME187 machine in the emulator.
To install OpenBSD/mvme88k onto an emulated harddisk image, follow these instructions:
dd if=/dev/zero of=obsd_mvme88k.img bs=1024 count=1 seek=1900000
wget -np -l 0 -r https://ftp.nluug.nl/OpenBSD/4.5/mvme88k/
mkisofs -o openbsd_mvme88k_4.5.iso -U ftp.nluug.nl/OpenBSD/
cp ftp.nluug.nl/OpenBSD/4.5/mvme88k/bsd . rm -rf ftp.nluug.nl
gxemul -e mvme187 -d obsd_mvme88k.img -d b:openbsd_mvme88k_4.5.iso -j 4.5/mvme88k/bsd.rdand proceed like you would do if you were installing OpenBSD on a real MVME187. There is a problem with finding the filesystem on the CDROM, since there is no disklabel [and/or because the emulator perhaps does not simulate CDROM TOCs well enough], but it's possible to mount the filesystem using manual intervention. Here is an example (from 4.4) of what an install can look like: (user input in blue italic)
CPU0 is associated to 2 MC88200 CMMUs Copyright (c) 1982, 1986, 1989, 1991, 1993 The Regents of the University of California. All rights reserved. Copyright (c) 1995-2008 OpenBSD. All rights reserved. http://www.OpenBSD.org OpenBSD 4.4 (RAMDISK) #19: Sun Aug 10 21:03:44 GMT 2008 root@arzon.gentiane.org:/usr/src/sys/arch/mvme88k/compile/RAMDISK real mem = 67108864 (64MB) avail mem = 56791040 (54MB) mainbus0 at root: Motorola MVME187, 33MHz cpu0: M88100 rev 0x3, 2 CMMU cpu0: M88200 (16K) rev 0x9, full Icache, M88200 (16K) rev 0x9, full Dcache pcctwo0 at mainbus0 addr 0xfff00000: rev 0 nvram0 at pcctwo0 offset 0xc0000: MK48T08 cl0 at pcctwo0 offset 0x45000 ipl 3: console osiop0 at pcctwo0 offset 0x47000 ipl 2: NCR53C710 rev 2, 66MHz scsibus0 at osiop0: 8 targets, initiator 7 osiop0: target 0 ignored sync request osiop0: target 0 now using 8 bit asynch xfers sd0 at scsibus0 targ 0 lun 0:SCSI2 0/direct fixed sd0: 1855MB, 1855 cyl, 16 head, 128 sec, 512 bytes/sec, 3800003 sec total osiop0: target 1 ignored sync request osiop0: target 1 now using 8 bit asynch xfers cd0 at scsibus0 targ 1 lun 0: SCSI2 5/cdrom removable vme0 at pcctwo0 offset 0x40000 vme0: using BUG parameters vme0: vme to cpu irq level 1:1 vmes0 at vme0 rd0: fixed, 4096 blocks boot device: root on rd0a swap on rd0b dump on rd0b WARNING: clock gained 138 days -- CHECK AND RESET THE DATE! erase ^?, werase ^W, kill ^U, intr ^C, status ^T (I)nstall, (U)pgrade or (S)hell? i Welcome to the OpenBSD/mvme88k 4.4 install program. This program will help you install OpenBSD. At any prompt except password prompts you can escape to a shell by typing '!'. Default answers are shown in []'s and are selected by pressing RETURN. At any time you can exit this program by pressing Control-C, but exiting during an install can leave your system in an inconsistent state. Terminal type? [vt100] xterm IS YOUR DATA BACKED UP? As with anything that modifies disk contents, this program can cause SIGNIFICANT data loss. It is often helpful to have the installation notes handy. For complex disk configurations, relevant disk hardware manuals and a calculator are useful. Proceed with install? [no] yes Cool! Let's get to it. You will now initialize the disk(s) that OpenBSD will use. To enable all available security features you should configure the disk(s) to allow the creation of separate filesystems for /, /tmp, /var, /usr, and /home. Available disks are: sd0. Which one is the root disk? (or 'done') [sd0] sd0 osiop0: target 0 ignored sync request osiop0: target 0 now using 8 bit asynch xfers Initial label editor (enter '?' for help at any prompt) > a a offset: [0] 63 size: [3799940] 3500000 FS type: [4.2BSD] mount point: [none] / > a b offset: [3500063] size: [299940] FS type: [swap] > w > q No label changes. No more disks to initialize. OpenBSD filesystems: sd0a / The next step *DESTROYS* all existing data on these partitions! Are you really sure that you're ready to proceed? [no] yes /dev/rsd0a: 1709.0MB in 3500000 sectors of 512 bytes 9 cylinder groups of 202.47MB, 12958 blocks, 25984 inodes each /dev/sd0a on /mnt type ffs (rw, asynchronous, local, ctime=Thu Jan 1 16:29:57 2009) System hostname? (short form, e.g. 'foo') test Configure the network? [yes] no Password for root account? (will not echo) Password for root account? (again) Let's install the sets! Location of sets? (cd disk ftp http nfs or 'done') [cd] disk Is the disk partition already mounted? [no] !mount -t cd9660 /dev/cd0c /mnt2 osiop0: target 1 ignored sync request osiop0: target 1 now using 8 bit asynch xfers Is the disk partition already mounted? [no] yes Pathname to the sets? (or 'done') [4.4/mvme88k] /mnt2/4.4/mvme88k Select sets by entering a set name, a file name pattern or 'all'. De-select sets by prepending a '-' to the set name, file name pattern or 'all'. Selected sets are labelled '[X]'. [X] bsd [X] bsd.rd [ ] bsd.mp [X] base44.tgz [X] etc44.tgz [X] misc44.tgz [X] comp44.tgz [X] man44.tgz [X] game44.tgz [ ] xbase44.tgz [ ] xetc44.tgz [ ] xshare44.tgz [ ] xfont44.tgz [ ] xserv44.tgz Set name? (or 'done') [bsd.mp] done Ready to install sets? [yes] yes Getting bsd ... 100% |**************************************************| 2329 KB 01:21 Getting bsd.rd ... 100% |**************************************************| 3150 KB 01:48 Getting base44.tgz ... 100% |**************************************************| 87686 KB 11:56 Getting etc44.tgz ... 100% |**************************************************| 629 KB 00:14 Getting misc44.tgz ... 100% |**************************************************| 2866 KB 00:37 Getting comp44.tgz ... 100% |**************************************************| 38869 KB 06:19 Getting man44.tgz ... 100% |**************************************************| 6967 KB 01:50 Getting game44.tgz ... 100% |**************************************************| 7037 KB 01:16 Location of sets? (cd disk ftp http nfs or 'done') [done] done Start sshd(8) by default? [yes] yes Start ntpd(8) by default? [no] no Saving configuration files...done. Generating initial host.random file...done. What timezone are you in? ('?' for list) [Canada/Mountain] Europe/Stockholm Setting local timezone to 'Europe/Stockholm'...done. Making all device nodes...done. Installing boot block... boot: /mnt/boot proto: /mnt/usr/mdec/bootxx device: /dev/rsd0a cdevice: /dev/rsd0c modifying vid. /mnt/usr/mdec/bootxx: entry point 0x9f0000 proto bootblock size 5120 room for 64 filesystem blocks at 0x9f1198 Will load 2 blocks of size 16384 each. 0: 17696 1: 17728 CONGRATULATIONS! Your OpenBSD install has been successfully completed! To boot the new system, enter halt at the command prompt. Once the system has halted, reset the machine and boot from the disk. # umount /mnt # halt
Once the install has finished, the following command should let you boot from the harddisk image:
gxemul -e mvme187 -d obsd_mvme88k.img bsd
When asked about root disk, enter sd0.
No NIC has been implemented yet for mvme187, so there is no network connectivity from within the guest OS.