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azambuja
Apprentice
Joined: 12 Jul 2002
Posts: 257
Location: Porto Alegre, RS, Brazil
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 Posted: Wed Jul 31, 2002 4:59 pm Post subject: CD-RW mounting and configuration |
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hello,
ive installed gentoo and i have 2 cd-drives. A DVD and a CD-RW. in /mnt/cdrom is my DVD drive, but my CD-RW is not there (as cdrom1 or cdrom2)... how do i configure it, so i can mount /mnt/cdrom1 the cd-rw drive?
im passing this parameters to the kernel thru grub:
hdd=ide-scsi devfs=mount
i think that the hdd=ide-scsi is required for a cd-rw drive, right?
thanx/cheers |
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BonezTheGoon
Bodhisattva
Joined: 14 Jun 2002
Posts: 1408
Location: Albuquerque, NM -- birthplace of Microsoft and Gentoo
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| Posted: Wed Jul 31, 2002 7:24 pm Post subject: |
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I'm not sure whether hdd=ide-scsi is a valid command, I know that hdd=scsi is though (they could both be valid, but I can only guarantee that the latter is correct). Also I found it interesting when troubleshooting the other night that the "SCSI Emulation" option in the kernel indicates (inside the help menu for SCSI Emulation) that IDE-CDROM support must be disabled (otherwise the IDE support will be used instead, regardless of the hdd=scsi option). So if and when you recompile your kernel you should remove support for IDE-CDROMs and you should be sure to specify both your DVD and CD-RW as scsi devices to your kernel (in your bootloader, grub, lilo, etc). After making such mentioned changes I would guess that your DVD and CD-RW will show up in /dev/cdroms/ (as cdrom0 and cdrom1). Hope that helps!
Regards,
BonezTheGoon |
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mksoft
l33t
Joined: 28 May 2002
Posts: 844
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| Posted: Wed Jul 31, 2002 9:56 pm Post subject: |
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There's an article about it in LinuxPlanet. You might want to read one of the comments about it in LinuxToday talkback, which gives a very detailed explanation.
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weirdo
Tux's lil' helper
Joined: 16 Apr 2002
Posts: 114
Location: Montreal/Quebec/Canada
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| Posted: Wed Jul 31, 2002 10:00 pm Post subject: |
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Simple go in the install guide and read the yellow block after the kenrel installation.
then add hd*=ide-scsi (* replace by the letter of your cdr) to the kernel line in the menu.lst of grub for lilo its a bit more complex. |
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MBCook
Tux's lil' helper
Joined: 27 Jul 2002
Posts: 136
Location: Insanity, USA
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| Posted: Thu Aug 01, 2002 1:40 am Post subject: |
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You're install is right, I would guess it's showing up as /dev/scd0, or somewhere under /dev/scsi/
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Read an intelligent book like "The New Thought Police" or "The War Against Boys", and learn the TRUTH. |
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azambuja
Apprentice
Joined: 12 Jul 2002
Posts: 257
Location: Porto Alegre, RS, Brazil
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| Posted: Wed Aug 07, 2002 11:05 pm Post subject: |
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i had not compiled the kernel with scsi emulation support...
now im recompiling it...
after its recompiled, will i have to create a directory for the cdrom1 ? (i dont know, just guessing, but maybe /mnt/cdrom1 or /dev/cdroms/cdrom1) or are they created automatically?
about the boot parameter im 99,99% that its correct: hdd=ide-scsi (in the grub menu.lst file)
thanx/cheers |
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rac
Bodhisattva
Joined: 30 May 2002
Posts: 6553
Location: Japanifornia
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| Posted: Wed Aug 07, 2002 11:09 pm Post subject: |
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| azambuja wrote: | | will i have to create a directory for the cdrom1 ? (i dont know, just guessing, but maybe /mnt/cdrom1 or /dev/cdroms/cdrom1) or are they created automatically? |
The entry under /dev should be created automatically by defsd, so don't worry about that. You will need to make a mount point directory (under /mnt seems the most consistent place) and, optionally, add a line to your /etc/fstab if you want to make mounting a bit easier.
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azambuja
Apprentice
Joined: 12 Jul 2002
Posts: 257
Location: Porto Alegre, RS, Brazil
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| Posted: Thu Aug 08, 2002 1:14 am Post subject: |
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ok, ive recompiled it...
now /dev/cdroms/cdrom1 exists, but a /mnt/cdrom1 doesnt...
is this going to work?
1. mkdir /mnt/cdrom1
2. add in fstab /dev/cdrom1 ... ... ... ... /mnt/cdrom1 iso9660 ... ... ...
thanx/cheers |
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mksoft
l33t
Joined: 28 May 2002
Posts: 844
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| Posted: Thu Aug 08, 2002 8:17 am Post subject: |
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| azambuja wrote: | ok, ive recompiled it...
now /dev/cdroms/cdrom1 exists, but a /mnt/cdrom1 doesnt...
is this going to work?
1. mkdir /mnt/cdrom1
2. add in fstab /dev/cdrom1 ... ... ... ... /mnt/cdrom1 iso9660 ... ... ...
thanx/cheers |
Yes it will work.
Note that you don't have to create mount points to mount the cdrom if you rarely use it, as mounting is quite flexible. You can always do (as root):
| Code: | mkdir temp_mount
mount /dev/cdroms/cdrom1 temp_mount -t iso9660 -o ro
......
umount temp_mount
rmdir temp_mount |
/etc/fstab makes it easier (and allows user mounting as well).
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azambuja
Apprentice
Joined: 12 Jul 2002
Posts: 257
Location: Porto Alegre, RS, Brazil
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| Posted: Fri Aug 09, 2002 1:39 am Post subject: |
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ok, it worked fine...
im using it in the fstab...
theres a difference i saw...
in konqueror browser, the directory that was automatically created (/mnt/cdrom0/) has in its proprieties LOCKED...
the one that ive created doesnt...
what does this means? do i have to make /mnt/cdrom1 locked too? how do i do that?
thanx/cheers |
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mksoft
l33t
Joined: 28 May 2002
Posts: 844
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| Posted: Fri Aug 09, 2002 8:17 am Post subject: |
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Locked  That means you have no access perms on the dir.
Can you specify the perms to both dirs also posting your fstab would help.
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There's someone in my head but it's not me - Pink Floyd |
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azambuja
Apprentice
Joined: 12 Jul 2002
Posts: 257
Location: Porto Alegre, RS, Brazil
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| Posted: Tue Aug 13, 2002 10:29 pm Post subject: |
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drwx------ 2 root root 4096 Jul 11 17:59 cdrom
drwxr-xr-x 2 root root 4096 Aug 7 23:06 cdrom1
/dev/cdroms/cdrom0 /mnt/cdrom iso9660 noauto,owner,ro
0 0
/dev/cdroms/cdrom1 /mnt/cdrom1 iso9660 noauto,owner,ro
00
the "auto" created on the installation is only acessible after a mount... the other is acessible without the mount (but you wont see the contents of the cd before a mount, 
thats the only difference between them...
thanx/cheers |
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