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I'm using Ubuntu 15.10 and I want to reinstall it. I tried Startup Disk Creator, Unetbootin, and sudo dd after formatting the disk with FAT 32 and NTFS, and also I tried these with three different USB drives in two different USB ports, and two different computers. But every time, Ubuntu 15.10 started. When I press F12 (Dell's boot menu) USB drive doesn't occur as one of the options. I tried these different .iso files from different sources, and even a couple Win 7 .iso files.

My laptop is a Dell Inspiron N5110 B45B45 with 500 GB Serial ATA (5400RPM) HDD, Intel Core i5-2450M (2.50GHz, 3M cache), 4096MB RAM(1x4096) 1333MHz DDR3 Dual Channel.

Is it a problem about BIOS?

Thank you

SinanDogan
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2 Answers2

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Startup Disk Creator and Unetbootin are known to not configure the media properly.

Open the Disks tool and click ☰ (on the right top corner) - select Restore Disk Image.

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Select the Ubuntu installation ISO image and the USB disk - start the restore process.

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Reboot the computer and select the USB drive entry from BIOS menu to boot from.

This method is proven to work and to create the Ubuntu installation media properly.

Update addressing your comments that you cannot boot into a working system:

Create the media using the diskpart tool in Windows.

Open command prompt as administrator and execute : 

diskpart
list disk  
select disk *  
clean  
create partition primary  
active  
format fs=fat32 quick  
assign letter=**

Note: * = number of USB drive | ** = select a free drive letter

Mount the ISO image and copy the content to the USB drive.

Change the boot order in BIOS to boot from the USB drive.

Byte Commander
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cl-netbox
  • 31,491
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Check your BIOS boot order. It usually is under system configuration or the last tab on the bios. Make sure that USB hard drive is the first in order or at least before notebook hard drive. If that doesn't work check for a boot from USB drive toggle option somewhere in the BIOS options I have seen those as well.

Check the documentation for installing Ubuntu wily to see which option is recommended for creating a bootable installer and use that.

user526154
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