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-   -   cdrom issues (http://www.linuxquestions.org/questions/slackware-14/cdrom-issues-76994/)

scarsmonkey 07-29-2003 02:10 PM

cdrom issues
 
any ideas on how to mount a cdrom drive while logged in under another user. call me stupid i know you want to. please don't just tell me to log-in with su, i'm not that stupid. while i'm at it anyone have any ideas on cd burning and where to get the packages.

fancypiper 07-29-2003 02:18 PM

No! I don't want to call you names that may not be true! :p

# Managing drives
LNAG - Accessing my drives
Rute - Device Mounting

You probably have the cd burning stuff installed.
# CD burning info
Is it configured and what is the device? Command this to find out:
cdrecord -scanbus
Adding an IDE CD-Writer to Linux
CD Writing HOWTO
Burning CDs on Linux

# Burn an ISO to disk
cdrecord -v speed=<burning speed> dev=<your device> /path/to/foo.iso
# Burn from disk to disk
cdrecord -v dev=<your device> speed=<burning speed> -isosize /dev/cdrom
# Generate an ISO from a directory.
mkisofs -Jr -o foo.iso /path/to/directory
mkisofs -vrTJUV "Label" -o foo.iso /path/to/directory
# Generate an ISO from a CD
dd if=/dev/cdrom of=foo.iso
Linux MP3 CD Burning mini-HOWTO
# Convert mp3 to wav with lame
for i in *.mp3; do lame --decode $i `basename $i .mp3`.wav; done
# Burn a CD from wav files
cdrecord -v -audio -pad speed=<burning speed> dev=<your device> /path/to/*.wav
# Erase a CDRW
cdrecord -v dev=<your device> speed=<burning speed> blank=fast

scarsmonkey 07-29-2003 05:32 PM

thank you
 
i just read some of what you told me. i'm going to try to change my /etc/fstab to look something like this

/dev/sda /mnt/cdrom iso9660 noauto,ro,user 0 0

then i'm going to start looking at the burning software

tipaul 07-30-2003 10:39 AM

sda...
 
> /dev/sda /mnt/cdrom iso9660 noauto,ro,user 0 0

That means you have a SCSI cdrom...

Hope you have a real SCSI cdrom... If not, you must use /dev/hdx (x=b, c or d ... depending if it is the D:, E: or F: drive for Windows) instead of /dev/sda

By the way, if you have an IDE CDBurner, you must use ide-scsi emulation (hdx=ide-scsi) to use it... And I normally use the scsi emulation on my CDROM drive also to be able to use it under cdburning application under X (like K3b)....

slakmagik 07-30-2003 11:01 AM

Re: thank you
 
Quote:

Originally posted by scarsmonkey
i just read some of what you told me. i'm going to try to change my /etc/fstab to look something like this

/dev/sda /mnt/cdrom iso9660 noauto,ro,user 0 0

then i'm going to start looking at the burning software

Something like that but not exactly - you probably need to make sure it says users. That screwed me up for the longest time and it's one of those things that, once you've modified it, you think "Well, I've already done that" and you're lucky if you ever catch it.

reclusivemonkey 07-30-2003 11:12 AM

Try /dev/sr0, thats usually the device number when using ide-scsi for the cd-burner. My slackware always prompts this to me if I forget. You must make sure you have this line in /etc/lilo.conf:-

append = "hd[X]=ide-scsi"

(be sure to type 'lilo' if you are adding this line to refresh lilo)

Where [X] is the letter of your drive. If you have your hard drive on your primary IDE, and your cd burner on your secondary ide, it will be 'hdc' for the master and 'hdd' for the slave.

scarsmonkey 07-31-2003 08:38 PM

Thanks everyone. My users can now access the cdrom drive. All I did was change "owner" to "users" in my /etc/fstab

scarsmonkey 08-01-2003 05:23 PM

new problem i can't umount my cdrom it gives me one of three error even under root

umount failed

/mnt/cdrom busy

inproper filesystem

what is going on?

slakmagik 08-01-2003 05:38 PM

You'll get a 'busy' if you are in the directory or some app is using something in the directory. Not sure about the 'improper filesystem' - that usually occurs on mount when you don't have the type in fstab, rather than on unmount. I think.

So as far as the first, make sure no activity is going on and cd out of the /mnt/cdrom directory, close any apps using it, etc.

scarsmonkey 08-01-2003 07:21 PM

as for the busy part, nothing i open when it occurs. it happens in KDE if i use a desktop icon to mount and umount the cdrom device. if i use the prompt i can mount and umount all i want and nothing happens. sorry maybe that extra info will help.

slakmagik 08-01-2003 10:38 PM

Hm. Yeah, it narrows it down to something wiggy with KDE but I don't use KDE, so I'm not sure what it is. I *have* used KDE but never had that problem. With me, it's always because I've got an xterm or term up somewhere that I left in that directory. *g*

I don't really know what to say - I guess just check the properties of the icon - maybe it's pointing to the wrong device or has the wrong permissions or something of that nature? Also check that, if it points to /dev/cdrom that that symlink, in turn points to the right device. If you've changed stuff regarding ide/scsi/emulation/etc you may have broken shortcuts and links and config files here and there.


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