[ltp] hotswaping UltraBay devices (R51)

Michael Gaber linux-thinkpad@linux-thinkpad.org
Fri, 16 Dec 2005 23:46:54 +0100


This is a cryptographically signed message in MIME format.

--------------ms030008030601090601060507
Content-Type: text/plain; charset=ISO-8859-15; format=flowed
Content-Transfer-Encoding: 7bit

Laurent Gilson wrote:
> Hello
> 
> I want to change my CD/DVD-ROM w/o rebooting. (R51 with Combo-drive)
> 
> "echo eject > /proc/acpi/ibm/bay" turns off the bay, but does not 
> unregister the IDE-device (i think this is a BIG problem, as the device 
> is not tristated before turning off the power. I don't want to fry the 
> drive or bay...).
> 
> hdparm -U /dev/hdc gives me the hdparm-help-text. hdparm does not react 
> at all to -U ... ??
> 
> -x 0 fails with "HDIO_TRISTATE_HWIF failed: Invalid argument".
> 
> 
> So ... how to do it right ?
> 
> Thanks,
> Gilson Laurent
> --The linux-thinkpad mailing list home page is at:
> http://mailman.linux-thinkpad.org/mailman/listinfo/linux-thinkpad
> 
> 

try this:

#eject:
/sbin/idectl-ibm-acpi 1 off
echo eject > /proc/acpi/ibm/bay
#insert:
/usr/bin/sleep 2 
/sbin/idectl-ibm-acpi 1 on
/sbin/idectl-ibm-acpi 1 rescan


straight copied from my acpi-script reacting to the acpi-events thrown 
by pulling out / thrusting in the handle

but remember: after swapping your device will run without dma, i haven't 
found a way to turn it back on, since hdparm won't let me.

(idectl-ibm-acpi is the idectl file from the ibm-acpi package)

--------------ms030008030601090601060507
Content-Type: application/x-pkcs7-signature; name="smime.p7s"
Content-Transfer-Encoding: base64
Content-Disposition: attachment; filename="smime.p7s"
Content-Description: S/MIME Cryptographic Signature
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=
--------------ms030008030601090601060507--