Wednesday, September 11, 2019

14.04 - Problem installing Ubuntu on USB drive with "no root file system is defined"


I am trying to install Ubuntu Tahr on a VisionTek USB ssd thumb with 120 GB. Using Gparted, I deleted the old partition and created a new one in fat32. Then with Startup Disk Creator, I put the Ubuntu iso on it and tried booting from the thumb drive.


Only problem is i come up against the message


No Root File System is Defined.  Please correct this from the partitioning menu.

When I try clicking on the change button or plus, the page freezes.


I tried formatting the thumb drive as ext4 Same results. Tried using unetbootin but that didn't even see my thumb drive. Tried lili usb creator from windows. Same results. Tried Lubuntu, same results. Tried


sudo apt-get remove dmraid

during the live Ubuntu. Same thing.


Funny thing is I can get into the live Ubuntu but I can't seem to install it. My laptop doesn't have an internal hard drive or any other usb plugged into it at the time, aside from the ssd and the charger. I am ready to tear my hair out. Please don't let me become bald.




  • Select the Partition in which You need to install.


  • Unallocate it by clicking the - sign.


  • Create Partition of EXT 4

  • Remember to Set the / in the last option of Partition Creation.

  • Continue to Install


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