svn commit: r296590 - in head/sys: dev/fdc sys

Aleksander Matveev timon at timon.net.nz
Thu Mar 10 10:51:13 UTC 2016


On 10/03/2016 03:36, Warner Losh wrote:
> Author: imp
> Date: Thu Mar 10 00:36:38 2016
> New Revision: 296590
> URL: https://svnweb.freebsd.org/changeset/base/296590
>
> Log:
>    Add raw RX-50 support. These are 400k single sided disks with 80
>    tracks and 10 sectors per track. More exotic RX-50 types not
>    supported, nor is there support for de-interleaving the first two
>    tracks where the physical sectors are 0 1 2 3 4 5 6 7 8 9, but they
>    should be interpreted as 0 5 1 6 2 7 3 8 4 9. This is purely to read
>    the media with dd. The FAT that's on these disks won't work with
>    msdosfs anyway.
>

   A week ago I sorted some stuff and found my old "Western Digital 
93044-a" 43.2 MiB IDE HDD.
Unfortunately, I couldn't read it under FreeBSD because HDD doesn't 
support LBA addressing and FreeBSD doesn't support CHS anymore. At first 
I thought that this is right to drop support of such old hardware, but 
after this commit may be I should write a patch that brings back 
CHS-addressing support :)

-- 
Aleksandr Matveev



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