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Old 04-29-2015, 03:33 AM   #1
hack3rcon
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Post Format Cool Disk for Linux USB boot.


Hello.
For Create a Linux USB boot, Cool disk File system must be EXT or FAT or...?
I used "dd if=/ISO File Patch of=/dev/sdc" but my Linux can't boot.

Thank you.
 
Old 04-29-2015, 04:33 AM   #2
TobiSGD
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If you use dd to copy an ISO to a USB device the filesystem on the USB device doesn't matter, it is overwritten anyway. You will have to give us more information so that we are able to help you:
- Which ISO did you copy that way (not all distros support this way of copying)?
- What exactly do you mean with "can't boot"?
 
Old 04-29-2015, 05:04 AM   #3
fatmac
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If the .iso file is a hybrid, dd will work, if it is not a hybrid, then you need to use something like unetbootin to put it onto your pendrive.

The filesystem on your pendrive is overwritten by the disk image when you use these methods.

However there are some distros that you can frugally install, (MX, TinyCore, etc).
 
Old 04-29-2015, 05:18 AM   #4
hack3rcon
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I wanted to Boot "Ubuntu 14.4 LTS" and use above command but USB can't booted and my Linux launched from HDD. I guess you right about some Distro.
Why some Distro can't booted via "dd" command?

---------- Post added 04-29-15 at 05:18 AM ----------

I wanted to Boot "Ubuntu 14.4 LTS" and use above command but USB can't booted and my Linux launched from HDD. I guess you right about some Distro.
Why some Distro can't booted via "dd" command?
 
Old 04-29-2015, 05:21 AM   #5
TobiSGD
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Quote:
Originally Posted by hack3rcon View Post
Why some Distro can't booted via "dd" command?
As fatmac stated, to be able to use dd for this purpose the distro must offer their ISOs in the hybridiso format. I don't know if Ubuntu does this, though, but it usually works fine with Unetbootin (for which you need a FAT32 formatted partition on your USB).
 
Old 04-29-2015, 05:39 AM   #6
jpollard
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It isn't the dd command that handles the boot.

It is the boot blocks on the media. If the boot program there isn't designed to handle different devices, it can't work as the I/O fails as the directed hardware interface isn't present. Hence the unetbootn to substitute.
 
Old 04-29-2015, 07:53 AM   #7
yancek
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Ubuntu iso files have been hybrid since 11.10 so it is quite likely another problem. Maybe if you posted the actual command someone could give some advice.
 
Old 04-29-2015, 11:20 AM   #8
fatmac
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http://unetbootin.sourceforge.net/
 
Old 05-01-2015, 11:39 AM   #9
hack3rcon
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I thought dd command will enable flag boot automatically.
 
  


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