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Questions tagged [user-mode-linux]

Use this tag only if you are asking about User-Mode Linux (UML) virtualisation software. If you are asking about users and/or permissions, then use those tags.

User-Mode Linux (UML) is a GNU GPL-licenced virtualisation technology designed to allow running multiple Linux systems as virtual machines.

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10 questions
9
votes
2 answers

How to correctly start a Ubuntu user-mode-linux from the command line

I have installed the package user-mode-linux for the UML kernel. I have built a user mode linux filesystem using the these commands I have even tried the Ubuntu filesystem from: http://fs.devloop.org.uk/ But it seems that I can not get a Ubuntu…
Andrew Stern
  • 739
6
votes
1 answer

User Mode Linux on ARM

I usually use UML but seems ARM architecture doesn't support it. Can I use UML on ARM? Before this I shared tiny servers with my friends. Now, I bought ARM based server. Anybody knows how to use UML on ARM based PC?
user125372
  • 61
5
votes
1 answer

usermod: cannot lock /etc/passwd

I get this massage: usermod: Permission denied. usermod: cannot lock /etc/passwd; try again later after trying to add myself to audio group by: usermod -a -G audio USERNAME. I would be grateful for any help.
ijonfryderyk
  • 137
2
votes
1 answer

user-mode-linux on Xenial

Is the package user-mode-linux still available on 16.04 Xenial? I couldn't find it now, $ apt-cache search user-mode-linux user-mode-linux-doc
sof
  • 497
2
votes
0 answers

changing username in ubuntu 18.04

My terminal reads xyz@Sam .I want to change it to some name say Ema . I tried usermod but everytime I get an error that this process is used by this process(some random four digit number ).
godfather_satyajeet
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  • 3
1
vote
0 answers

How do I install bind on user mode linux?

I am trying to build a DNS simulation by using bind on several user mode linux (UML) instances on the same computer. I have UML installed and working, but I can't figure out how to install anything. I set up UML with this tutorial, using the…
Trevin Avery
  • 111
0
votes
1 answer

Rearding OpenSSL connection

Once i connect to a server using command Openssl s_client -quiet -connect ircs.overthewire. org:6697 What to do after I m connected It shows cursor on line in which I can type anything?
shon
  • 1
0
votes
2 answers

Permission denied error while installing MATLAB 2017 a on ubuntu16.4

i tried to install MATLAB 2017a the first i used ./install and got permission denied error the next made super user and that error repeated again. This is whole of my installation process: reza@reza:~$ cd…
Reza Qasemi
  • 1
0
votes
0 answers

I’ve changed username by sudo usermod now I can’t log in the user account

I was trying to change my username and searching in the internet I’ve found this command: sudo usermod -l new_username -d /home/new_username previous_username To apply the changes to all directories. I ran the command from another user. But now I…
Selene Melo
  • 9
-7
votes
1 answer

How to install any GNU/Linux distro without virtualization, containers, sandboxing, VMM solutions?

I have a mystery about why and how it is possible to run an unknown managed solution, e.g., Windows VMM, containers, or Kubernetes on my laptop such that I end up in user-mode Linux. Since the end of 2022, it seems to be impossible to install any…
t7wd
  • 1