USB Multi-Card reader with FC3

Fritz Whittington f.whittington at
Mon Dec 20 20:53:55 UTC 2004

[FC3 system, installed to bare disk, up2date as of yesterday.]

I have two of these devices, and they both exhibit the same symptom:  I
can only see one of the four different media slots.  (Turns out to be

I have Googled, searched these archives, and come up with the general
idea that I need to enable multiple LUN support.  I can find several
things that talk about how to do it on FC2, but those solutions do not
seem to work on FC3.

I have tried:
adding max_scsi_luns=6 to the end of the boot entry in grub.conf.
adding options scsc_mod max_scsi_luns=6 to /etc/modprobe.conf
After doing modinfo scsi_mod, I note the option now seems to be max_luns
instead of max_scsi_luns.  Changed grub.conf and modprobe.conf
appropriately.  No good.  (Yes, I did reboot.)

Is this a bug in FC3, or has anyone else got it working in FC3?

Fritz Whittington
"There are two ways of constructing a software design. One way is to make it 
so simple that there are obviously no deficiencies. And the other way is to 
make it so complicated that there are no obvious deficiencies." - C.A.R. Hoare

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