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floppy drive on infocalypse

daemon@ATHENA.MIT.EDU (Albert Dvornik)
Wed Apr 24 22:34:44 1996

From: "Albert Dvornik" <bert@MIT.EDU>
To: hotline@MIT.EDU
Cc: bert@MIT.EDU, mbarker@MIT.EDU, brlewis@MIT.EDU
Date: Wed, 24 Apr 1996 22:34:32 EDT


The floppy drive on infocalypse, a Sparc Classic in the Watchmaker
Zone (e40-342-bugs-3), doesn't work any more.  If you try accessing
the floppy drive, either by using mtools or by directly accessing the
vold devices under /vol, you get a lot of console errors like

21:57 fd0: read failed (40 20 0)
21:57 fd0: crc error blk 0
21:57 fd0: read failed (44 1 0)
21:57 fd0: bad format
21:57 fd0: read failed (40 20 0)
21:57 fd0: crc error blk 0
21:57 fd0: read failed (40 4 10)
21:57 fd0: bad format

(In case anyone cares, these are syslogs to kern.info.)
If you kill vold and try accessing /dev/[r]diskette directly, you get
an I/O error, although no syslogs.

I was able to repeat this with a number of DOS disks, some of which
were newly formatted on a DOS machine.  The disks are readable by a
different Zone machine (a Sparc 5).  Therefore, it's probably a
hardware problem.

--bert

PS.  If you want to take the machine down for maintenance, you should
     check with Bruce Lewis <brlewis@mit.edu> in e40-342c first.

     If you have trouble logging in, probably it's because the machine
     is running more than one X server, due to an unrelated software
     problem...  If this is the case, you should get me, Bruce or Greg
     Hudson to log in remotely and restart dm.

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