From wkt at csadfa.cs.adfa.oz.au  Tue Jul  2 11:44:42 1996
From: wkt at csadfa.cs.adfa.oz.au (Warren Toomey)
Date: Tue, 2 Jul 1996 11:44:42 +1000 (EST)
Subject: Boston Museum RK Format?
Message-ID: <9607020144.AA28826@dolphin>

Hi all,
	I've just been looking thru the old tapes I have here from v6 Unix,
and I think I've got two RK disk images which were laid out with the RK
driver from the Boston Children's Museum. An old email from Kevin Hill
says that the inodes are in the middle of the pack, rather than at the
beginning. However, I don't know enough about the scheme to try and
decode the files from the disk image.

If anybody can help me out, could they email me back. I've got a
program called `grab' that can extract files from v6 images, and I'd
like to modify it to get the files from these `museum' disk images.

Re: the stuff from SCO, Dion at SCO is talking to the legal guys, but
I haven't heard anything as yet.

Thanks in advance!

	Warren


From wkt at csadfa.cs.adfa.oz.au  Tue Jul  2 14:58:28 1996
From: wkt at csadfa.cs.adfa.oz.au (Warren Toomey)
Date: Tue, 2 Jul 1996 14:58:28 +1000 (EST)
Subject: Got Museum RK Format
Message-ID: <9607020458.AA00378@dolphin>

All,
	I browsed thru the blocks on my `Museum Format' v6 disk image,
and after a bit of work found a nice comment from the writers of the
code:

/*
 *      Optimized RK-11/RK03/RK05/disk driver
 *
 *      Copyright (c) 1975, the Children's Museum.
 *
 *		[...] In this
 *              format, block 0 is in its standard place so that
 *              boot programs can be put there; blocks 1 through
 *              NHRKBLK (2435) are located beginning at block #2436,
 *              all remaining blocks are between block 1 & 2435. the
 *              effect of this mapping is to centralize disk head motion
 *              about the center of the disk. 
 *              the optimization is ideal for those RK's
 *              which serve as both root device and swap device. It 
 *              is less than ideal, although probably still an 
 *              improvement over traditional form, for RK's used 
 *              exclusively as mounted file systems.

So, after a bit of dd(1)ing, I had my two Museum Format v6 disk images
into a form which could be read with a normal v6 system.

Cheers,
	Warren


From wkt at csadfa.cs.adfa.oz.au  Mon Jul 29 14:51:38 1996
From: wkt at csadfa.cs.adfa.oz.au (Warren Toomey)
Date: Mon, 29 Jul 1996 14:51:38 +1000 (EST)
Subject: Lions Book: Details from Peter Salus
Message-ID: <9607290451.AA03815@dolphin>

All,
	Just got this information about the Lions commentary on v6 from
Peter Salus:

 The ISBN for the Lions is (will be?) 1-57398-013-7.  It will
 be $29.95 US. The distributor is International Thompson;
 the publisher is Peer-to-Peer Communications.

Cheers,
	Warren


From wkt at csadfa.cs.adfa.oz.au  Tue Jul  2 11:44:42 1996
From: wkt at csadfa.cs.adfa.oz.au (Warren Toomey)
Date: Tue, 2 Jul 1996 11:44:42 +1000 (EST)
Subject: Boston Museum RK Format?
Message-ID: <9607020144.AA28826@dolphin>

Hi all,
	I've just been looking thru the old tapes I have here from v6 Unix,
and I think I've got two RK disk images which were laid out with the RK
driver from the Boston Children's Museum. An old email from Kevin Hill
says that the inodes are in the middle of the pack, rather than at the
beginning. However, I don't know enough about the scheme to try and
decode the files from the disk image.

If anybody can help me out, could they email me back. I've got a
program called `grab' that can extract files from v6 images, and I'd
like to modify it to get the files from these `museum' disk images.

Re: the stuff from SCO, Dion at SCO is talking to the legal guys, but
I haven't heard anything as yet.

Thanks in advance!

	Warren


From wkt at csadfa.cs.adfa.oz.au  Tue Jul  2 14:58:28 1996
From: wkt at csadfa.cs.adfa.oz.au (Warren Toomey)
Date: Tue, 2 Jul 1996 14:58:28 +1000 (EST)
Subject: Got Museum RK Format
Message-ID: <9607020458.AA00378@dolphin>

All,
	I browsed thru the blocks on my `Museum Format' v6 disk image,
and after a bit of work found a nice comment from the writers of the
code:

/*
 *      Optimized RK-11/RK03/RK05/disk driver
 *
 *      Copyright (c) 1975, the Children's Museum.
 *
 *		[...] In this
 *              format, block 0 is in its standard place so that
 *              boot programs can be put there; blocks 1 through
 *              NHRKBLK (2435) are located beginning at block #2436,
 *              all remaining blocks are between block 1 & 2435. the
 *              effect of this mapping is to centralize disk head motion
 *              about the center of the disk. 
 *              the optimization is ideal for those RK's
 *              which serve as both root device and swap device. It 
 *              is less than ideal, although probably still an 
 *              improvement over traditional form, for RK's used 
 *              exclusively as mounted file systems.

So, after a bit of dd(1)ing, I had my two Museum Format v6 disk images
into a form which could be read with a normal v6 system.

Cheers,
	Warren


From wkt at csadfa.cs.adfa.oz.au  Mon Jul 29 14:51:38 1996
From: wkt at csadfa.cs.adfa.oz.au (Warren Toomey)
Date: Mon, 29 Jul 1996 14:51:38 +1000 (EST)
Subject: Lions Book: Details from Peter Salus
Message-ID: <9607290451.AA03815@dolphin>

All,
	Just got this information about the Lions commentary on v6 from
Peter Salus:

 The ISBN for the Lions is (will be?) 1-57398-013-7.  It will
 be $29.95 US. The distributor is International Thompson;
 the publisher is Peer-to-Peer Communications.

Cheers,
	Warren


