Hot swap cdrom, need help

beatryder · Veteran Joined: 08 Apr 2005 Posts: 1138

I have a laptop with a hotswapable cd/dvdrw drive, I have a floppy drive and a second battery that I can swap out for it.

The floppy drive is detected as a USB drive and has always worked.

If I boot the laptop with the dvdrw installed, everything works fine. I can swap them out at my hearts content, and everything is cool.

However:
If I start the computer with the second battery installed instead of the dvdrw, I can not for the life of me get it the dvdrw to work when swapped out.

Here is the sequence of events:
1) boot with battery installed
2) Once booted, I take out the battery, ACPID sees it and adds a log entry (cause i have not set it up to do anything with that event)
3) I put in the dvdrw, and watch the logs, check dmesg, and get NOTHING.
4) Try to mount a cd/dvd, and get told that it is not a valid block device (this is for hdc dvd cdrom sr0)

if I boot with the dvdrw installed then it all works just fine.

Is there a way that I can tell udev that this device is there all the time, effectivly forcing it to create the deivce node?
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SpecvWillis · Posted: Tue Jun 07, 2005 6:40 pm Post subject:

Are the usb modules loading when you boot with the battery installed? Try booting with the battery installed, swap in the dvd/rw, then loading your usb modules.

beatryder · Veteran Joined: 08 Apr 2005 Posts: 1138

yeah, tried that already.

the dvdrw is NOT usb. its an ide.
_________________
Dont make it idiot proof, make it work.
Neucode.org
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beatryder · Veteran Joined: 08 Apr 2005 Posts: 1138

bump
_________________
Dont make it idiot proof, make it work.
Neucode.org
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SpecvWillis · Posted: Fri Jun 10, 2005 12:33 pm Post subject:

If you boot with the dvd drive in the bay, then swap in the battery, does ACPID see the battery?

beatryder · Veteran Joined: 08 Apr 2005 Posts: 1138

Yup, that works just fine, as they each have a unique connector.
_________________
Dont make it idiot proof, make it work.
Neucode.org
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SpecvWillis · Posted: Fri Jun 10, 2005 4:45 pm Post subject:

When you boot up with the dvd in the bay, then remove it and put it back, what do you see in dmesg or the logs?

beatryder · Veteran Joined: 08 Apr 2005 Posts: 1138

Nothing, nothing at all, which is part of the problem...
_________________
Dont make it idiot proof, make it work.
Neucode.org
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SpecvWillis · Posted: Fri Jun 10, 2005 5:17 pm Post subject:

What if you do a modprobe ide-cd ? You may need to compile this as a module to get it to work properly.