Installed xscreensaver on a 32 GB thumbdrive running Linux Operating System Ubuntu 18.04 LTS which is connected to a USB 3.0 port of a MSI GE70 computer hardware

cindy@roses333:~$ sudo su
[sudo] password for cindy:
root@roses333:/home/cindy#
root@roses333:/home/cindy#
root@roses333:/home/cindy#
root@roses333:/home/cindy#
root@roses333:/home/cindy#
root@roses333:/home/cindy#
root@roses333:/home/cindy# apt install xscreeensaver
Reading package lists... Done
Building dependency tree     
Reading state information... Done
E: Unable to locate package xscreeensaver
root@roses333:/home/cindy#
root@roses333:/home/cindy#
root@roses333:/home/cindy#
root@roses333:/home/cindy#
root@roses333:/home/cindy# apt install xscreeensaver
Reading package lists... Done
Building dependency tree     
Reading state information... Done
E: Unable to locate package xscreeensaver
root@roses333:/home/cindy# apt install xscreensaver
Reading package lists... Done
Building dependency tree     
Reading state information... Done
The following additional packages will be installed:
  libbonobo2-0 libbonobo2-common libbonoboui2-0 libbonoboui2-common
  libglade2-0 libgnome-2-0 libgnome2-common libgnomecanvas2-0
  libgnomecanvas2-common libgnomeui-0 libgnomeui-common libgnomevfs2-0
  libgnomevfs2-common libjpeg-turbo-progs liborbit-2-0 xscreensaver-data
Suggested packages:
  libbonobo2-bin desktop-base gnome-icon-theme libgnomevfs2-bin
  libgnomevfs2-extra gamin | fam gnome-mime-data xfishtank xdaliclock
  xscreensaver-data-extra xscreensaver-gl xscreensaver-gl-extra fortune
  qcam | streamer
Recommended packages:
  perl5
The following NEW packages will be installed:
  libbonobo2-0 libbonobo2-common libbonoboui2-0 libbonoboui2-common
  libglade2-0 libgnome-2-0 libgnome2-common libgnomecanvas2-0
  libgnomecanvas2-common libgnomeui-0 libgnomeui-common libgnomevfs2-0
  libgnomevfs2-common libjpeg-turbo-progs liborbit-2-0 xscreensaver
  xscreensaver-data
0 upgraded, 17 newly installed, 0 to remove and 16 not upgraded.
Need to get 2,574 kB/2,880 kB of archives.
After this operation, 16.0 MB of additional disk space will be used.
Do you want to continue? [Y/n] Y
Get:1 http://my.archive.ubuntu.com/ubuntu bionic/universe amd64 libbonobo2-common all 2.32.1-3 [34.7 kB]
Get:2 http://my.archive.ubuntu.com/ubuntu bionic/universe amd64 liborbit-2-0 amd64 1:2.14.19-4 [140 kB]
Get:3 http://my.archive.ubuntu.com/ubuntu bionic/universe amd64 libbonobo2-0 amd64 2.32.1-3 [211 kB]
Get:4 http://my.archive.ubuntu.com/ubuntu bionic/universe amd64 libglade2-0 amd64 1:2.6.4-2 [44.6 kB]
Get:5 http://my.archive.ubuntu.com/ubuntu bionic/universe amd64 libgnomevfs2-common amd64 1:2.24.4-6.1ubuntu2 [23.0 kB]
Get:6 http://my.archive.ubuntu.com/ubuntu bionic/universe amd64 libgnomevfs2-0 amd64 1:2.24.4-6.1ubuntu2 [213 kB]
Get:7 http://my.archive.ubuntu.com/ubuntu bionic/universe amd64 libgnome2-common all 2.32.1-6 [397 kB]
Get:8 http://my.archive.ubuntu.com/ubuntu bionic/universe amd64 libgnome-2-0 amd64 2.32.1-6 [54.6 kB]
Get:9 http://my.archive.ubuntu.com/ubuntu bionic/universe amd64 libgnomecanvas2-common all 2.30.3-3 [3,958 B]
Get:10 http://my.archive.ubuntu.com/ubuntu bionic/universe amd64 libgnomecanvas2-0 amd64 2.30.3-3 [84.3 kB]
Get:11 http://my.archive.ubuntu.com/ubuntu bionic/universe amd64 libbonoboui2-common all 2.24.5-4 [3,700 B]
Get:12 http://my.archive.ubuntu.com/ubuntu bionic/universe amd64 libbonoboui2-0 amd64 2.24.5-4 [154 kB]
Get:13 http://my.archive.ubuntu.com/ubuntu bionic/universe amd64 libgnomeui-common all 2.24.5-3.2 [396 kB]
Get:14 http://my.archive.ubuntu.com/ubuntu bionic/universe amd64 libgnomeui-0 amd64 2.24.5-3.2 [208 kB]
Get:15 http://my.archive.ubuntu.com/ubuntu bionic-updates/universe amd64 libjpeg-turbo-progs amd64 1.5.2-0ubuntu5.18.04.1 [59.1 kB]
Get:16 http://my.archive.ubuntu.com/ubuntu bionic/universe amd64 xscreensaver amd64 5.36-1ubuntu1 [545 kB]
Fetched 2,574 kB in 12s (223 kB/s)                                       
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root@roses333:/home/cindy#
root@roses333:/home/cindy#
root@roses333:/home/cindy#
root@roses333:/home/cindy#
root@roses333:/home/cindy#
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root@roses333:/home/cindy#
root@roses333:/home/cindy#
root@roses333:/home/cindy#