Useful tip: Run LiveCD and eject CD

[henrique]

do this at the command line

$sudo umount -l /cdrom
$sudo eject /dev/cdrom


be careful to not open any new program
to open a new application that's not yet opened put the livecd back on the drive and do

$mount /dev/cdrom

[j.drake]

Now why in the world would you want to do that when you have the options of the tohd, fromhd and bootfrom cheatcodes???

jd

[henrique]

my hd is full and I have only one cd-rom drive

someone could do this in a hd-less computer, small is beautiful

[paradocs]

Hi henrique

I like working with anad exploring the advantages of
using knoppix from the cd with no hard drive.

I like you idea. Now could you have two remasters that
are the same -- except make some programs are different?

If you could swap disks, without bothering the kernel
you could break the 700 limit for content. You would have
a 2 CD version of knoppix.

Each disk may have to have the same files -- but some
file could be place holder files, taking only a few bytes.
Of course you could not use a program on disk A
with a program on disk B, so logical coordination
would be needed.

Let me know when you have this working.

Best Wishes
paradocs

[j.drake]

OK, cool.

[Cuddles]

henrique,

Interesting...

I know a lot of people have been asking about "releasing" the CD-ROM from a Knoppix Live CD boot, so, here comes the questions - If I see any other posts on this issue, I will be sure to "pass on" what the answers come down too...

( 1 ) I take it, that, if a person wants to play an Audio CD, in the only CD-ROM they have, which was used by Knoppix to boot off of, that the person would fire up the CD Player program, and then umount the /dev/cdrom device, insert there Audio CD, and then press "play" in the player program... ( will this work? )

( 2 ) If the above will work, then take a second example: the booted CD-ROM drive is a DVD drive, and the person wants to view a DVD from that same drive... Would they be able to load the DVD Player program, umount the /dev/cdrom device, insert the DVD disc, press "play"...

In both the examples above, when the person was done, they would, of course, remove the "playing" media from the device, re-insert the Knoppix Live CD, and re-mount /dev/cdrom...

Most of the questions being posted into the "General Forum", and, once in a while, in "The Lounge" -=- usually fall into the two issues above, and if this works, ( though I would have never thought to umount the cdrom in the first place ), it would help a lot of people out...

For some people, they don't want to put "anything" on there system, but want to "see" what Knoppix can do - not much, when the cdrom is dedicated to the booting of Knoppix, and this would allow them to "see" a lot more of the OS, working, and "in action", without having to install anything.

Ms. Cuddles

[dreday202]

I tried doing this, and I was able to eject the knoppix cd and put in a blank cd, but how would I go about backing up data using K3B this way? I tried to burn a data cd (containing mp3's and some word documents) but it said it could not write the iso file this way. Is there any way of doing this? I don't have another cd rom drive, and my system is NFTS

thanks a lot

Andre

[henrique]

I tried doing this, and I was able to eject the knoppix cd and put in a blank cd, but how would I go about backing up data using K3B this way? I tried to burn a data cd (containing mp3's and some word documents) but it said it could not write the iso file this way. Is there any way of doing this? I don't have another cd rom drive, and my system is NFTS

thanks a lot

Andre

I do not tried to burn a backup data cd before but I always burn isos downloaded from the net using this tip. Try to make an iso before ejecting cd or experiment another burner as gcombust (only the main executable needed)

[Fabianx]

I have yet to see a much more useful tip.

I have been searching for something like that for a _looong_ time ...

cu

Fabian

PS: That means we can do: tohd and changetohd _while_ running from CD.

Thank you. Thank you. Thank you !!!

[drmarathe]

I tried doing this on Notebook Toshiba using the 2.6 Kernal
First I had logged in as a Root shell and tried doing it. But it didn't work, so next I tried at the $ prompt.
So I guess the /cdrom was already unmounted.
But the eject didn't work

knoppix@ttyp2[knoppix]$ sudo umount -l /cdrom
umount: /cdrom: not mounted
knoppix@ttyp2[knoppix]$ sudo eject /dev/cdrom
eject: unable to find or open device for: `/dev/cdrom'
knoppix@ttyp2[knoppix]$ mount /dev/cdrom
mount: mount point /mnt/auto/cdrom does not exist

I am exactly in the situation mentioned. MY HD controller has crashed and have no HD, but would like to play audio and video cds under knoppix.

Please Help! Thanks