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authorTheo de Raadt <deraadt@cvs.openbsd.org>1995-10-18 08:53:40 +0000
committerTheo de Raadt <deraadt@cvs.openbsd.org>1995-10-18 08:53:40 +0000
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+I'm pleased to (finally) announce the release of NetBSD/Alpha.
+
+As some of you may know, NetBSD is a freely-available and freely-
+redistributable BSD-derived system that runs on a variety of hardware
+platforms, including i386's, Amigas, SPARCs, and DECstations. The Alpha
+port is unique, because it's the first port of NetBSD to a 64-bit
+architecture.
+
+The Alpha port of NetBSD is a true 64-bit port: pointers and longs are 64
+bits. This involved a _LOT_ of changes to "machine-independent" kernel,
+and to many of the user-land programs.
+
+So, some details on the status of the port, and a list of supported hardware:
+
+ The port is self-hosting; it is stable enough to build all of its
+ constituent binaries (including GCC and the rest of the tool chain)
+ many times over. I've seen uptimes of more than a week, with
+ multiple compiles going 24 hours a day. It is in "production use"
+ for its own development, and will soon be in use by computer science
+ researchers. It's _not_ simply a kernel hacker's toy at this point.
+
+ Lots of things still don't work properly. In particular, a lot of
+ (poorly-written) user-land programs don't work. As far as I'm
+ aware, however, there are no found-but-yet-unfixed bugs in the
+ libraries, which makes getting programs working a bit easier.
+ Unfortunately, at this time, GDB isn't capable of actually debugging
+ programs (though it is good for disassembling them, if you know
+ where they crashed). It's worth noting that the internet protocol
+ suite works well (and, indeed, I do most of my work remotedly
+ logged in), and the SunRPC library also works. (Both required serious
+ modifications to make them work with 64 bit pointers and longs.)
+ Because formatting the manual pages would have required making g++
+ and groff work, there are no formatted man pages included and
+ there's no easy way to format them. If you need the manual pages,
+ I'd suggest that you look on another NetBSD system. If you
+ absolutely can't do that, OSF/1 manual pages should be OK for
+ most tasks.
+
+ There's rudimentary support for running OSF/1 binaries, which I
+ originally used when bootstrapping the system. However, it is only
+ capable of running statically linked binaries, so it's not very
+ useful except for bootstrapping. It's hoped that eventually we'll
+ be able to run dynamically-linked OSF/1 binaries. (If you wish to
+ work on this, please get in touch with me!) NetBSD/Alpha can safely
+ read and write OSF/1 (v2.0; I would guess v1.x and v3.x as well)
+ file systems (assuming you don't have OSF/1's security features
+ enabled). Additionally, the NetBSD/Alpha disklabel format is
+ compatible with OSF/1's.
+
+ Supported hardware:
+ DEC 3000/[456789]00 (I've only tested it on the 400 and
+ 600, but the rest should "just work) using the following
+ peripherals:
+
+ Serial ports -- barely; the serial driver needs a
+ lot of help and is not useful for many
+ complex tasks.
+ LANCE ethernet -- only the on-board model; I've
+ not tried any TurboChannel boards, and
+ didn't write complete support for them into
+ the driver.
+ SCSI system -- it recognizes and can use both
+ on-board SCSI controller chips. However,
+ it has trouble working with both at the
+ same time.
+
+ At this time neither the Smart Frame Buffer nor the
+ ISDN/Audio interface is supported.
+
+ DEC 3000/300 (with the same hardware supported as above;
+ I've not tested these very much at all, on any of the
+ 3000/300 models.)
+
+ Unfortunately, at this time none of the following systems are
+ supported:
+ AlphaPCs -- the EISA-bus Alpha systems
+ AlphaStations -- the PCI-bus Alpha systems
+ The Futurebus-based Alpha server systems
+ The multiprocessor Alpha systems
+
+Obtaining NetBSD/Alpha sources and binaries:
+
+ This release is being made in two parts, source and binary. The
+ source distribution is a gzipped tar file containing all of the
+ sources used to build the system, including the compiler and
+ user-land sources. (Most of the kernel and user-land changes
+ have made it back into the NetBSD source tree. Many have not,
+ however, and the compiler shipped with NetBSD doesn't work on
+ the Alpha; if you're using NetBSD on the Alpha, you _need_ my
+ source distribution.) The binary distribution is a gzipped disk
+ image from an rz25 disk; it's approximately 406M ungzipped
+ (63M gzipped), and you install it by dd'ing it on to a raw disk;
+ more on this later.
+
+ If you wish to obtain the source or binaries for the NetBSD/Alpha
+ distribution, send me (cgd@cs.cmu.edu) mail, and I'll arrange to
+ get them to you. They're sufficiently large that I've not yet
+ found an FTP site for them, and also, given the preliminary nature
+ of this distribution, I want to keep in close contact with
+ the people who are using them.
+
+ If you are interested in the NetBSD/Alpha port, I suggest that you
+ subscribe to the NetBSD "port-alpha" mailing list by sending an
+ email message to majordomo@netbsd.org with no subject and with a
+ body of "subscribe port-alpha" (without the quotes). For help on
+ using majordomo, send it mail with an empty subject and body.
+
+Installing the NetBSD/Alpha distribution:
+
+ [ Note that these instructions are minimal; it's assumed that if
+ you're going to be installing this, you're knowledgeable about
+ booting Alphas and doing other sysadmin-ish stuff, are willing
+ to look in your Alpha documentation, or are brave. If they're
+ really not good enough to get you running, get in touch with me
+ and I'll try to help you. ]
+
+ To install the NetBSD/Alpha distribution, you'll need a disk at
+ least the size of an RZ25 -- about 406Mb. Once you've gotten the
+ binary distribution from me, gunzip it and dd it to the raw disk.
+ The binary distribution includes a disklabel and boot block, so you
+ don't need to do anything special to make it bootable. I created
+ the binary distribution's file systems with an older version (4.3
+ Reno) of the Berkeley Fast File System format, so that you can
+ mount, read, and write them under OSF/1.
+
+ Once you've dd'd the image to the disk, set your system to use a
+ serial console. Boot the Alpha with the NetBSD disk, supplying the
+ boot flag "-s". It should print something about "NetBSD/Alpha Boot
+ program", load the kernel, print a copyright, and print various
+ startup messages. Included among those startup messages will be
+ SCSI bus/id to device name mappings for all of the SCSI devices
+ that NetBSD recognizes. Eventually, it'll ask you for the name of
+ the root device. It expects something like "sd0", "sd1", etc., and
+ you should pick the name that corresponds to the NetBSD disk.
+
+ After a short while, you should be asked for the name of a shell
+ to use; just hit return. You're advised to fsck the disk at this
+ point (the root partition is partition 'a' and the /usr partition
+ is partition 'd'), remount the root partition read-write (use mount
+ -u root-dev /), and create some necessary system information files:
+ /etc/hosts
+ /etc/resolv.conf (if you want to use DNS)
+ /etc/myname (the hostname of the machine)
+ /etc/mygate (the LAN's gateway's IP address, if your network
+ setup requires that it be named explicitly)
+ /etc/hostname.le0 (to describe the enet addr, etc., for the
+ Alpha's ethernet. The format can be discerned by
+ looking in /etc/netstart. As an example, for
+ my development machine, it's:
+ inet macallan.dssc.cs.cmu.edu 0xffff0000 128.2.255.255
+ ^^^^^^^^^^^^^^^hostname ^^^netmask ^^^broadcast)
+ /etc/fstab (a prototype is in /etc/fstab.sd)
+ (You can also create the files mentioned above by mounting the
+ disk's file systems under OSF/1 and filling in the appropriate
+ information.)
+
+ Once those files are created, you should be able to boot the system
+ multi-user. To do so, halt the system and boot again from the
+ NetBSD disk, this time supplying the boot flags "-a".
+
+ Once the system has booted, you should be able to log in over the
+ network. (Log in as root, at first, then use vipw to create user
+ account(s) and re-log in as the appropriate user.) If you used a
+ disk other than an RZ25, you may also want to edit the disk's
+ disklabel, and create one or more partitions to use the extra space.
+
+Using NetBSD/Alpha:
+ You'll probably want to NFS mount the sources from another machine;
+ that's what I do, and it works just fine. If you'd like tips on
+ good ways to keep the NetBSD sources under source control, just ask.
+
+ A fair number of binaries don't work properly. For example:
+ GDB won't properly run programs or debug core files; someone
+ needs to write support for NetBSD/Alpha.
+ diff dumps core if there are differences in the files being
+ compared (but it _doesn't_ dump core if they're the
+ same!)
+ ps and w don't work properly, for several reasons:
+ (a) they don't know how to read an ECOFF binary's
+ namelist, so can't find the addresses of
+ things in core
+ (b) I've thus far been lazy, and didn't bother
+ creating some of the necessary entries in
+ the device switches (e.g. /dev/drum),
+ because I knew nothing could use them
+ because of (a) anyway...
+
+ As noted above, the SCSI code is reliable only when being used with
+ one SCSI bus at a time; this is obviously a bug. Additionally, the
+ SCSI driver seems unhappy about dealing with certain types of disk
+ drives (e.g. the IBM Lightning). I don't know why these problems
+ exist yet, but it's worth noting that somebody's in the process of
+ rewriting the 53c94 chip support from the ground up because the
+ current support is "somewhat lacking." (This should solve at least
+ the latter problem.)
+
+ Because I've been working on getting the system up and running, then
+ out the door, I've not had much time to do performance analysis on
+ the kernel, nor tried to improve performance in any way. Some of
+ the code is awfully rough. That being said, on a lot of operations
+ I'm seeing performance comparable to that of OSF/1 on the same
+ hardware, so I've not gone too far wrong anywhere.
+
+ I've run 'paranoia' on NetBSD/Alpha, and it reports one defect (the
+ same result as for OSF/1).
+
+Thanks to:
+ Carnegie Mellon University, for funding for this project.
+ Digital Equipment Corporation, for the hardware and documentation.
+ Keith Bostic, for writing and/or working on a large chunk of the
+ code, and for general moral corruption and good humor.
+ Kirk McKusick, for being the Final Arbiter of Taste and Style.
+ Jeff Mogul, for providing moral support, documentation, and
+ pointers thereto.
+ Various people working on NetBSD, for suggestions, sanity checking,
+ drivers, etc.
+ Whoever I'm forgetting, for things that I don't remember right now.
+
+
+That's it for now; get in touch if you'd like to get copies of the software
+and/or would like to contribute to the development effort. I'll be sending
+out status reports to various places (probably including the place(s) you
+saw this announcement) as things progress.
+
+
+Chris Demetriou
+cgd@cs.cmu.edu