How do I mount ejected external USB flash storage? [duplicate]

The problem you describe was initially the intention for me to write an app that allows you to manage your drives from the menu bar. It is called Mountain and you can get it here.

Hope you enjoy it!!

UPDATE: The only way to re-mount ejected external USB flash drives is to unload and load the USB mass storage kernel extension:

kextunload /System/Library/Extensions/IOUSBMassStorageClass.kext

Followed by:

kextload /System/Library/Extensions/IOUSBMassStorageClass.kext

Be aware that this will re-mount ALL external USB drives..

You mount devices using:

diskutil mountDisk device

where device can be a

• device node: /dev/disk2
• disk identifier: disk1s7
• volume mount point: /Volumes/Macintosh HD

For those that like the graphical Disk Utility.app, it also shows a connected drive that happens to not be mounted and you are able to mount ejected disks again from there as well.