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Old 06-09-2005, 02:38 PM   #1
noru2
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Registered: Jun 2005
Location: Dallas Area
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USB cd rom


Hi,

I am definitely a newbie to linux, but long time PC user. My interest in Linux finally reached the point that I ordered a couple of "LIVE" cd's so I could see what Linux looked like without installing it.

I ordered and received the disks, Knoppix and Mepis, from OSDISK.com and have every reason to believe the disks are in good shape, however, I cannot make them work with my configuration.

My Pc is Compaq Presario which has been altered physically so that I could use two interchangeable 80GB HD's, one as a backup. The holder for these HD's is made by StarTech.com and take up the only two 5 1/4 slots in the PC. To accomplish this, the CDROM is external in a USB to IDE enclosure. This cd rom has worked in every application that I have tried it in, including burning CD;s, but I may or may not have a problem with Linux. I worte to OSDISK.com and they said that sometimes external CD roms would not work with Linux, and that i could return the disks if I wanted to, and referred me to this organization. I really don't want to return them. I always want to learn something new and would like to made them work.

I did a search for my problem, but did not find an exact help of any kind so now the posting. If any of you can offer a solution other than putting the cd rom back in the PC, would appreciate it.

The CD ROM recognises and starts the loading of the program, but stops after a short time. The error message from MEPIS is:

Can't start up File system - Halting.

--------------------------------------------------

The error message from Knoppix is:

Welcome to the Knopix Live on CD
Scanning for USB?FIREWARE devices - done.
Can't find Knoppix File system, sorry.

---------------------------------------------------------

Thanks in advance,

Norman
 
Old 06-09-2005, 07:53 PM   #2
J.W.
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Registered: Mar 2003
Location: Boise, ID
Distribution: Mint
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Welcome to LQ! I'm not familiar with the equipment you mention, however, if you are attempting to boot from a USB device, that would only be an option if your BIOS supports it. Reboot, get into BIOS, and look at the boot choices that appear -- if booting from a USB device is an option, move it to the top of the list, save the changes, and you should be ready to go. If it does not appear as a boot option, there is no workaround (at least none that I'm aware of)

Additionally, there is a possibility that the CD's you purchased are defective, but I would guess this is probably not the case. However, you can download those same Live CD's yourself, for free, from places like our own LQ ISO, LinuxISO, or the distro's websites, then burn them yourself and see if you have better luck.

If you decide to do this, make sure to run the MD5SUM against the downloaded file to verify that it is not corrupted, before you burn it to a CD (as there is no sense in creating coasters unnecessarily). Basically this is done by simply running the following command
Code:
md5sum <filename>
where <filename> is the actual ISO file name. The output will be a long series of letters and numbers, which should be compared to the reference number (the site you downloaded the ISO from willl have it) Unless those MD5SUM's match perfectly, the image has been corrupted and should be discarded. Lastly, when you burn the ISO to the CD, you must burn it as an image -- you cannot just do a drag-and-drop copy, or burn it as a regular data file. You may already know all of this, but I've included this in case you didn't. Good luck with it either way -- J.W.
 
Old 06-09-2005, 08:13 PM   #3
kencaz
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Registered: Mar 2005
Location: Las Vegas, NV
Distribution: Mandriva Slackware FreeBSD
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I agree with J.W. sounds like a bad burn. Even though your Hardware (IDE to USB) or (USB to IDE)??? is un-usual in a sense. It seems to be booting and if MEPIS is giving the error then It seems to have been burned as an image.

Are you burning the CD on this drive or some other CDRW. Also you may want to decrease the burn speed if your md5sum continues failing.

KC
 
  


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