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Old 07-02-2014, 09:12 PM   #1
Gremlin022
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Computer thinks flash drive is CD-ROM


I currently have Lubuntu installed on my old Dell, but I found Sonar Linux that has everything I need for large text! It's an Ubuntu derivative.

The trouble is, I installed the iso onto a USB flash drive, and the computer thinks it's a CD-ROM when loading and errors about not being able to mount /dev/sdr? (whichever is the CD-ROM device name). How can I get the computer to treat the flash drive properly?
 
Old 07-02-2014, 09:42 PM   #2
frankbell
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Did you just copy the *.iso to the flash drive or did you use something like Unetbootin to make the flash drive bootable?

Unetbootin works very well. I've used it to install Mint on two computers (my netbook, which had Mint 14 on it, and my girlfriend's old XP netbook) in the past three days. (I'm trying to convert her to Linux, but she works at a Microsoft shop.)

Last edited by frankbell; 07-02-2014 at 09:43 PM.
 
Old 07-03-2014, 12:49 AM   #3
Gremlin022
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Quote:
Originally Posted by frankbell View Post
Did you just copy the *.iso to the flash drive or did you use something like Unetbootin to make the flash drive bootable?

Unetbootin works very well. I've used it to install Mint on two computers (my netbook, which had Mint 14 on it, and my girlfriend's old XP netbook) in the past three days. (I'm trying to convert her to Linux, but she works at a Microsoft shop.)
Trying it now, but I'm not sure it's working. I used Universal USB Installer to create the disk.

Just tried Unetbootin and the flash drive is still detected as an unmountable cd-rom.

I found a script on a site that describes this problem as one to do with short filenames, but it still won't work (probably because it's for Ubuntu and not the Sonar distro):

http://cirrus.ucsd.edu/~pierce/fix_ubuntu_usb/

Last edited by Gremlin022; 07-03-2014 at 07:31 AM.
 
Old 07-03-2014, 03:42 PM   #4
jefro
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If you used either dd or some of the live installers it will or can make the install seem like it it running from an optical media. There normally isn't a problem not being able to mount the usb as a user. You just want to run the installer from this usb.
 
Old 07-03-2014, 03:51 PM   #5
EDDY1
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Some of the drives like SanDisk do have a portion of the drive that is read as a cdrom but the partition will be very small. Post output of
Quote:
fdisk -l
 
Old 07-03-2014, 04:36 PM   #6
yancek
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UUI and unetbootin are both types of software which simply put a Live CD on a flash drive and make them bootable. It will behave in the same manner as a Live CD. Are you rebooting your computer with the flash plugged into a port and set to first boot priority in the BIOS?
 
Old 07-03-2014, 05:38 PM   #7
Gremlin022
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Output of fdisk -l was nothing. I don't know why.

I'm creating the "LiveCD" in Windows 7 and then booting the USB on my Linux machine as first boot priority (over BIOS). I've used three programs now and nothing has worked. Maybe I should try creating one under Linux, but I'm so new I don't know how.

Last edited by Gremlin022; 07-03-2014 at 05:55 PM.
 
Old 07-03-2014, 08:08 PM   #8
EDDY1
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You do realize that some usb drives are recognized as hdd's. Check in bios under hdd's if it is bootable you'll see a + sign.
 
Old 07-03-2014, 08:22 PM   #9
maples
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Quote:
Originally Posted by Gremlin022 View Post
Output of fdisk -l was nothing. I don't know why.
You need to be root. So you should really type:
Code:
sudo fdisk -l
Type your password (don't panic if nothing appears on the screen as you type the password- it's not suppossed to) then hit Enter. Then post the results.

Hope this helps!
 
Old 07-04-2014, 06:52 PM   #10
Gremlin022
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Output from fdisk -l:

Code:
Disk /dev/sda: 80.0 GB, 80000000000 bytes
255 heads, 63 sectors/track, 9726 cylinders, total 156250000 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x000aa8e2

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1   *        2048   155205631    77601792   83  Linux
/dev/sda2       155207678   156248063      520193    5  Extended
/dev/sda5       155207680   156248063      520192   82  Linux swap / Solaris

Disk /dev/sdb: 31.4 GB, 31379685376 bytes
8 heads, 32 sectors/track, 239408 cylinders, total 61288448 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0xd1cd3d33

   Device Boot      Start         End      Blocks   Id  System
/dev/sdb1   *        2760    61288447    30642844    c  W95 FAT32 (LBA)
 
Old 07-04-2014, 08:19 PM   #11
jefro
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I think we've gotten lost here.

You created a usb. (not sure what the iso part in windows 7 is)

You booted to this usb.

Why do you care about how it see's this drive? What stops you from installing the OS?
 
Old 07-05-2014, 06:55 AM   #12
Gremlin022
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Quote:
Originally Posted by jefro View Post
I think we've gotten lost here.

You created a usb. (not sure what the iso part in windows 7 is)

You booted to this usb.

Why do you care about how it see's this drive? What stops you from installing the OS?
When I try to load the kernel it gives an error message about cannot mount /dev/sdr and cycles through various drives that I can't remember, that it says it cannot mount. Then it goes into a fallback mode and ends up at a boot prompt but I don't know what it needs to run properly.

I don't think it can mount and that's why I can't load the kernel.

Last edited by Gremlin022; 07-05-2014 at 07:03 AM.
 
Old 07-05-2014, 11:38 AM   #13
Gremlin022
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Thanks everyone for all the help offered. I switched to 12.04 and the install worked. I still have no idea why it wasn't working before, but I have a working OS now.
 
Old 07-05-2014, 12:46 PM   #14
frieza
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Quote:
Originally Posted by EDDY1 View Post
Some of the drives like SanDisk do have a portion of the drive that is read as a cdrom but the partition will be very small. Post output of
that is known as U3

http://en.wikipedia.org/wiki/U3
 
Old 07-05-2014, 03:15 PM   #15
jefro
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Since the distro is odd/not main stream it could have any number of errors.

Not all distro's optical media works correctly by placing it on a usb.

Thanks for the update and sorry we didn't get you going.

Maybe you can borrow a usb CD/DVD drive and make a disc to install this special distro.
 
  


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