Date: Tue, 12 Aug 2003 14:37:18 -0500 (GMT) From: Sean Welch <welchsm@earthlink.net> To: spadger@best.com Cc: freebsd-mobile@freebsd.org Subject: Hot swap of bay devices -- problem solved (I8K) Message-ID: <1668879.1060724295591.JavaMail.nobody@rowlf.psp.pas.earthlink.net>
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Well, I just tried again and I think I found my issue.
I must have misremembered the steps I tried. I believe
I inserted the drive, tried an attach (which gave me an
error messag as the channel was already attached), then
tried a reinit. This confused the kernel mightily
(apparently) because the devices had changed.
Here is what I have discovered I can do successfully
under 4.8-RELEASE (I have 5.1-RELEASE also installed
and will try that one later):
1) *ALWAYS* do an atacontrol detach [CHANNEL] first,
even if booted with a battery or floppy drive
in the bay. The channel is definitely attached
at boot whether there are any devices there or
not.
2) Insert the drive. If it is a floppy drive it will
just work. Running atacontrol attach [CHANNEL]
won't show anything attached. If it is an atapi
drive run atacontrol attach [CHANNEL] and it will
show up, ready to be used (provided the device
nodes have already been created, of course).
In this case it means that after boot (with a battery
in the bay the way I usually have it) I can do this:
1) atacontrol detach 1
2) Remove battery
3) Insert floppy and use
*OR*
Insert Sony CDRW,
atacontrol attach 1,
and use
In my case there are no beeps and I do not have to
suspend. (Good thing about that latter -- I upgraded
the graphics card and now the bios doesn't resume
from RAM suspends and though suspend to disk works
well it takes 3 minutes to shut down/start up.)
I hope this helps someone else!
I think it might be a good thing to consider adding
some sort of status switch to atacontrol to show
whether or not a channel is attached...
Sean
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