From owner-freebsd-questions Fri Nov 17 01:38:16 1995 Return-Path: owner-questions Received: (from root@localhost) by freefall.freebsd.org (8.6.12/8.6.6) id BAA18725 for questions-outgoing; Fri, 17 Nov 1995 01:38:16 -0800 Received: from venus.newcastle.edu.au (venus.newcastle.edu.au [134.148.100.248]) by freefall.freebsd.org (8.6.12/8.6.6) with SMTP id BAA18717 for ; Fri, 17 Nov 1995 01:38:00 -0800 Received: by venus.newcastle.edu.au id AA12031 (5.65c/IDA-1.4.4 for questions@FreeBSD.org); Fri, 17 Nov 1995 20:37:30 +1100 From: Andrew Spray Message-Id: <199511170937.AA12031@venus.newcastle.edu.au> Subject: Handling disk translations with more than 16 heads? To: questions@FreeBSD.org Date: Fri, 17 Nov 1995 20:37:29 -36507155 (EST) X-Mailer: ELM [version 2.4 PL21] Content-Type: text Content-Length: 3098 Sender: owner-questions@FreeBSD.org Precedence: bulk Summary: Where can I find documentation on how to deal with disk translations incorporating >16 heads? Hi, I am attempting to install FreeBSD 2.0.5 Release onto a disk which has head/track/sector translation. My translation has a large number of heads (>16) so that I can have some large DOS (apologies) partitions. I believe that I am having difficulties because of the numbers of heads. Could you please advise me of the manuals I should be reading to overcome this problem. I have a degree of control over the translation, and FreeBSD appears to install correctly with 16 heads or less (but this limits the total apparent disk area I have available). Further, I have written at some point to most of the disk successfully with DOS, so the medium seems OK. In case I am barking up the wrong tree, I include (what appear to be) the relevant areas of debug messages. (As you can see the geometry is 64 hds, 1024 trks, 63 secs - ideally I would like something of the order of 123 hds, 737 trks, 46 secs (what my controller card recommends)). BIOS: AMI (1990) Disk controller: Longshine Electronics v 2.A1 LCS-6633(F) DEBUG: ioctl(3, TIOCCONS, NULL) = 0 (success) wd0: can't handle 64 heads from partition table (truncating to 16) DEBUG: Found a device of type disk named: wd0