installing freebsd 7.1 ( error mounting /dev/acd0 input/outputerror)

Chris Rees utisoft at
Tue Mar 31 07:29:29 PDT 2009

[lines broken in quote]

2009/3/31 ajeesh joseph <ajeeshjoseph at>:
>  hello,I have tried the way how you suggested. But unfortunately iam getting same
> i tried to install by plugging HDD as primary master and cdrom and primary slave.I tried
> to install.During install a new problem of /dev/ad0s1a on /mnt : input/output error appears,,can
> you help me in solving this so that i can install freebsd.


Your original configuration was hard drive as Primary Master, and CD
as Secondary Master. Are you using 80-conductor cables?

80 conductor:
40 conductor:

The 40 conductor ribbons sometimes throw up problems in strange times
and places, an effect I observed when installing FreeBSD on my Xbox.

Also, the 80-conductor cables often support CS jumper settings; try
setting both jumpers to cable select, and plug the 80-conductor cable
in with the labelled ends into the correct drives.

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