Booting Ubuntu 16.04 from a pendrive with persistent storage

[loukitkhemka]

I am trying to create a live ubuntu usb drive using etcher. The instructions I was following was from this page:
https://www.lifewire.com/create-uefi...-drive-2202085

However, after the OS image was etched in the pendrive, I cannot create the casper-rw file because I am unable to view the pendrive in the disc list.

Upon checking in the disk management, I am only to see the unallocated space.

Please help me with any solution. Any other technique will also do.

[sudodus]

There is another tool, mkusb, that works in linux, and that can create a persistent live drive automatically, including a casper-rw partition. See the following links

help.ubuntu.com/community/mkusb

help.ubuntu.com/community/mkusb/persistent

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If you want to create a persistent live drive from Windows, you use Win32 Disk Imager to clone from an image file according to the following link,

Compressed image file with a persistent live system

[C.S.Cameron]

I always use mkusb for making a Persistent USB in Ubuntu, For making a Persistent USB in Windows I find UNetbootin easiest. Both tools work for BIOS and UEFI.
If the USB is over 16GB I use a Live USB to do a Full install to the drive. It is more stable than a Persistent install, is more secure, boots faster, uses space more efficiently and can be updated and upgraded.