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Old 06-10-2015, 01:59 AM   #1
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bootable pendrive from live dvd

hi friends,
can anyone tell me how to create
bootable pendrive from live dvd?
I tried creating iso & made it bootable
in all famous softwares like ultra
iso,power iso,win iso.but still it's not
May be I don't know the steps.can
anyone tell me pliz?
Old 06-10-2015, 02:13 AM   #2
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what kind of live dvd is it? what kind of os do you have? probably unetbootin is your friend.
Old 06-10-2015, 05:11 PM   #3
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There are four basic ways to create a usb bootable linux.

One is to use a program like unetbootin or usb creator. These applications don't exactly make a real linux system. They don't work on every distro. See

Two is to use the live media to usb install if the distro has that. Not all do.

Three is to use a direct to usb with dd command. It will only work on iso images that have been made special called hybrid iso.

Four is the way I tend to use. I use the distro's installer to install directly to the usb just as if it were a real hard drive. (because linux thinks it is a scsi for most distro's)

Also one might use grub or other loader to load directly to the iso file. So that is five.

Last edited by jefro; 06-11-2015 at 04:33 PM.
Old 06-10-2015, 05:44 PM   #4
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If you have a bootable linux, you can mount the .iso file and rsync the files of the root filesystem to a filesystem on the storage medium. I actually made a youtube video on that. Setup a bootloader and it's mostly good. Many of them will detect that the filesystem isn't read-only and behave differently when you boot into it. The simpler method is to dd the .iso file to the stick. Some iso images have the root filesystem in another compressed file (squashfs), which makes the rsync option a bit complex at times. There's other options if you're doing it from a windows machine. With unetbootin, sysconfig, easy2boot, and other options. But it can be quirky so if one doesn't work move on and try another. With UEFI, and secure boot, it can be even more quirky. On a gateway desktop I have, I have to boot windows to reboot into the UEFI and change it to boot USB first everytime that I want to boot linux. But most of my other machines are less needy.


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