I was trying to create a persistent storage on a Live Ubuntu USB drive. Then I came to many tutorials that required mkusb. I've searched for many ways to install it but I couldn't, even after adding PPAs, restarting, editing sources.list, etc. This is the output:
$ sudo add-apt-repository ppa:mkusb/ppa
More info: https://launchpad.net/~mkusb/+archive/ubuntu/ppa
Press [ENTER] to continue or Ctrl-c to cancel adding it.
Hit:1 http://ppa.launchpad.net/mkusb/ppa/ubuntu bionic InRelease
Hit:2 http://security.ubuntu.com/ubuntu bionic-security InRelease
Hit:3 http://vn.archive.ubuntu.com/ubuntu bionic InRelease
Hit:4 http://vn.archive.ubuntu.com/ubuntu bionic-updates InRelease
Hit:5 http://vn.archive.ubuntu.com/ubuntu bionic-backports InRelease
Reading package lists... Done
$ sudo apt update
Hit:1 http://ppa.launchpad.net/mkusb/ppa/ubuntu bionic InRelease
Hit:2 http://security.ubuntu.com/ubuntu bionic-security InRelease
Hit:3 http://vn.archive.ubuntu.com/ubuntu bionic InRelease
Hit:4 http://vn.archive.ubuntu.com/ubuntu bionic-updates InRelease
Hit:5 http://vn.archive.ubuntu.com/ubuntu bionic-backports InRelease
Reading package lists... Done
Building dependency tree
Reading state information... Done
All packages are up to date.
$ sudo apt install mkusb
Reading package lists... Done
Building dependency tree
Reading state information... Done
E: Unable to locate package mkusb
I don't know if I made some mistakes somewhere. Thanks!
EDIT: I managed to install mkusb using tarball, but it doesn't detect my USB drive. But the main point is finished, maybe I will ask another question. Thank you!