Subj : copy images under OpenBSD
To   : Jasen Betts
From : Francois Thunus
Date : Sun Nov 26 2000 03:34 am

 Hello !

25 Nov 00 16:05, Jasen Betts wrote to Francois Thunus:

 FT>> I mean obviously this is a device driver.
 JB> Is there another way to access the image of the volume?
 JB> with a floppy drive you just copy to/from /dev/fd0 (etc)
normally you mount it first, hence you use your mounting point.
I am not aware (unless specific cases) that you can just copy to /dev/fd0. 
normally you first mount /dev/fd0 somewhere (usually /mnt/floppy or /floppy and 
operate on those. If you are trying to look at the content of a cd by looking 
at the driver without mounting it first, I am not surprized it does not work.
step one is to mount the cd onto the system. Usually, this is a root 
priviledge, unless the device was declared for users use in /etc/fstab. There 
are alos now automounting syste that will automagically mount the cd and the 
floppy when a new one is inserted, and umount it when it is taken out. But as 
far as I know (I don't use those), they still function via a mountpoint defined 
in fstab.

 FT>> The size I am referring to is the size of the image you are
 FT>> copying, not the device
 JB> given a CD how can you determine how big it's image will be?
du or even df. but once they are mounted of course.


 Francois Thunus

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