Hot Swap CD-RW/DVD and Floppy Drives on a IBM ThinkPad T23

[marlowe]

I am running Fedora Core 1 with kernel 2.4.22-1.2174.nptl on an IBM ThinkPad T23. I am having issues hot swapping my CD-RW, DVD and floppy drives.

I have tried removing the relevant modules using rmmod, ejecting the drive, inserting the new drive, make the appropriate changes to /etc/fstab, running kudzu to update the system and adding the appropriate modules with modprobe. When the drive is ejected, the system begins to beep, even after the new drive is inserted and kudzu is run. Attempts to mount either device hangs.

The following error message appears in /var/log/messages when I try to hot swap the floppy for the cdrom

Mar 17 10:14:29 suntzu kernel: ide-scsi: Strange, packet command initiated yet DRQ isn't asserted

Any help that can be provided would be appreciated.

Thanks,
Patrick

[tomchuk]

Try rmmoding the necessary modules (don't forget ide-scsi), put it into standby, swap the drives, resume and run kudzu.

[Bana]

Have you tried rolling your own kernel with all the hot plug features enabled?

[marlowe]

Bana,

Thanks for the post. I noticed that the hotplug feature is enabled in the default kernel for Fedora but the module for hotplug for an IBM ThinkPad is not. Also the module is listed as very expermintal. I think I will test it on my other laptop thoroughly before I put into production. I will make sure to post my results to the forum later in case any is interested.

Patrick