I have installed ubuntu 16.04 (32 bit) into my USB drive. But in last section of installation i got an error that is cannot install bootloader to my USB device. I don’t know why it is so. But Ubuntu is successfully installed and I can only boot into it thorough my computer. And can’t boot Ubuntu in my usb in any other PC. I need to install a bootloader to my USB so that I can even boot into my Ubuntu in any other PC. Please help me.
I have found a solution for this. During installation I have made another partition of fat32 type and I had successfully installed grub bootloader in my device.