USB drives tend to have firmware in front of what may wish to boot.
What I like to do is use Gparted to make room in the end of the drive (say move the end of the drive up so that enstead of having a 16gb fat partition I have a 1 gb fat partition and 15 gb unallocated. I do not bother the front of the drive (other than to add the MBR later in the Linux install).
Then treat the Flash drive as a regular drive otherwise during the install process.
Not all flash drives will allow this. Simply find one that does.
Currently I am using F20 flash drives to in my laptop and netbook (each specifically made on and for the specific device) to do all of my on line banking. Simply I like the idea of the Flash drive not being exposed to normal use otherwise. I do check the security certificate fingerprints. I do keep the Linux install updated.
On Sat, Sep 27, 2014 at 6:32 AM, Paolo De Michele <paolo@xxxxxxxxxxxxxxxxx> wrote:
On 26/09/14 23:36, bitlord wrote:
> On Fri, 2014-09-26 at 23:11 +0200, Paolo De Michele wrote:
>> hi everybody,
>>
>> I'm not be able to boot fedora 20 x64 or x32 from usb (I tried fedora
>> kde live, fedora complete and centos 6.5 minimal)
>> I used a lot of software like liveusb-creator, unetbootin and the shell
>> command like dd
>>
>> the pendrive is formatted in vfat and the client is a veriton N281G (on
>> the bios I see that support removable devices)
> When you are copying complete image to flash drive, you don't need to
> format it. (useless action, you will overwrite it later)
ok
>>
>> the shell command is: dd if=/dir/file.iso of=/dev/sdx1 bs=1M
>> with liveusb-creator and the unetbootin the steps are via gui
> Not sure for centos images (I think older ones are not compatible to be
> directly copied to device, and don't know for new ones >=7. But fedora
> should work fine, and when you do it, you don't copy your image to the
> partition, but to the device, so of=/dev/sdx1 is wrong, (1,2,3.... ) is
> a partition number.
> You need something like this
> # dd if=<fedora_iso_image> of=/dev/sdx (where X can be a,b,c,...)
> Be careful with this method it will overwrite device with data of size
> of the image ...
> More info on writing usb images
> https://fedoraproject.org/wiki/How_to_create_and_use_Live_USB
it works
>
> And always when you download ISO images verify them
> https://fedoraproject.org/verify
>> so, where I wrong?
>> let me know, thanks in advance
>>
>> regards
>
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