Monday, April 9, 2018

How to fix blinking underscore on boot from USB flash drive?



My machine is an eMachines w3107 (2005 CSM/Legacy BIOS Machine) and I seem to have an issue with booting from USB flash drives, even with the proper partition table. I have had this issue many times on other computers and it ended up being because of an invalid partition table.




This problem is different. The USB flash drive isn't showing up as a bootable removable device in my boot device options. I have tried everything I could find online to overcome this issue.



When I force the computer to boot from removable media, the computer hangs with a blinking underscore. As far as I can tell, I can only do Ctrl+Alt+Delete to reboot.



Any help on this problem? Without a UEFI enabled BIOS, no help is currently available elsewhere.


Answer



Turns out certain file-system setups make this desktop detect the flash drive as a hard drive.
So pretty much it wasn't detected as a removable device, and instead a hard drive by the BIOS. Perfectly able to boot into installation media now by taking the different boot device path no problem.



Screenshot NO.1 Screenshot NO.2



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