home *** CD-ROM | disk | FTP | other *** search
- Newsgroups: comp.unix.bsd
- Path: sparky!uunet!sun-barr!ames!sgi!rigden.wpd.sgi.com!rpw3
- From: rpw3@rigden.wpd.sgi.com (Rob Warnock)
- Subject: Re: 386BSD asboot problems (bug?)
- Message-ID: <pe4qfdg@sgi.sgi.com>
- Sender: rpw3@rigden.wpd.sgi.com
- Organization: Silicon Graphics, Inc. Mountain View, CA
- Date: Fri, 4 Sep 1992 13:09:49 GMT
- Lines: 34
-
- cchase@cs.cornell.edu (Craig Chase) writes:
- +---------------
- | 1) has anyone else had trouble succesfully labeling a SCSI disk with
- | DOS as the first partitions (and 386BSD after)?
- +---------------
-
- Yes. What I do is manually patch the binary image on disk of "asboot" to
- have the right sector offset for the "a" partition. Ugly, but it works.
- (I do the patching with MS-ODS's "DEBUG", typing/executing assembler
- to do "INT 13" reads/writes. Now that *is* UG-lee!!!)
-
- In the 0.1 asboot, the location to patch is 0x60 bytes into the file
- (into relative block #0 of the partition). At bytes 0x60-63 put the
- *BIG*Endian sector number of that same sector (first sector of the
- partition). Then everything will work.
-
- +---------------
- | 3) Have I encountered a bug in disklabel, asboot, bootas, or...
- +---------------
-
- It's a bug in "asboot", or if you prefer, in the process which installs
- the image of "asboot" on the disk (i.e., "disklabel"). One or the other...
-
- I'm not sure yet what the cleanest solution would be...
-
-
- -Rob
-
- -----
- Rob Warnock, MS-9U/510 rpw3@sgi.com
- Silicon Graphics, Inc. (415)390-1673
- 2011 N. Shoreline Blvd.
- Mountain View, CA 94043
-
-