This article explains how to easily make your USB thumb drive appear in Linux when you plug it in. This can also be applied to external hard disks.
The Initramfs prompt (busybox) issue arises after selecting to boot into Ubuntu from your boot menu. The boot process halts at a black screen with an initramfs prompt is displayed. You have probably installed Ubuntu on an NTFS partition dual booting with Microsoft Windows which is causing the problems.
After switching on your computer or after restarting Windows XP you receive either of the error messages below and cannot get into Windows.
These errors are usually shown on a black screen with white writing and you cannot get anywhere further. You have no choice but to shutdown or restart the computer.
After switching on your computer or after restarting Windows XP you receive the error message ‘Missing Operating System’ or ‘Operating System Not Found’ and cannot get into Windows.