From mboxrd@z Thu Jan 1 00:00:00 1970 From: dfevans@bbcr.uwaterloo.ca (David Evans) Date: Thu, 16 Jan 2003 12:33:54 -0500 Subject: [pups] Making a TK50 2.11BSD boot tape for an 11/73 In-Reply-To: ; from bqt@update.uu.se on Thu, Jan 16, 2003 at 06:28:30PM +0100 References: <20030116110643.B28361@bcr10.uwaterloo.ca> Message-ID: <20030116123354.E28733@bcr10.uwaterloo.ca> On Thu, Jan 16, 2003 at 06:28:30PM +0100, Johnny Billquist wrote: > > Ahhh--of course. One would have to do a series of "dd"s in order to > > get the padding happening. > > Probably not. Repeated "dd"s will not produce the same result. This is the > typical error when not understanding that tapes actually are not a stream > of characters. (And also a good example when the Unix paradigm fails > pretty bad). If you could do something like (dd if=mtboot sync bs=512 |+ dd if=mtboot sync bs=512 |+ dd if=boot sync bs=512) | dd of=/dev/whatever obs=512 in order to concatenate the multiple copies of mtboot then all would be well. > > That's not a bad idea. Perhaps I should just make a minimal bootable image > > using simh or such, dd it to a SCSI disk, and then attach that to my 11/73. > > Might be easier than endless futzing with the TK50. > > Don't. The moment you copy a tape file to disk, you will loose meta > information unless you use a program specifically designed to preserve > that information. > I meant an actual bootable system, not the tape image. -- David Evans (NeXTMail/MIME OK) dfevans at bbcr.uwaterloo.ca Ph.D. Candidate, Computer/Synth Junkie http://bbcr.uwaterloo.ca/~dfevans/ University of Waterloo "Default is the value selected by the composer Ontario, Canada overridden by your command." - Roland TR-707 Manual