sudo apt-get update
finishes with this error:
Fetched 325 kB in 3s (36.0 kB/s)
Reading package lists...
Done
W: The repository ' cdrom 16.04.6 LTS _Xenial Xerus
Release i386 (20130226) xenial Release' does not have a Release file.
N: Data from such a repository can't be authenticated and is therefore potentially dangerous to use .
N: See apt—secure(8) manpage for repository creation and user conf iguration detai Is.
W: The repository 'https://conuersionupdates.paloaltonetworks.com expedition—updates/ Release' does not have a Release file.
N: Data from such a repository can't be authenticated and is therefore potentially dangerous to use .
N: See apt—secure(8) manpage for repository creation and user conf iguration detai Is.
E: Failed to fetch cdrom 16.04.6 LTS Xenia I Xerus - Release i386 (Z0130ZZ6)/distsz xenia l/ma in/binary—i386/Packages Please use apt—cdrom to make this CD—ROM recognized by APT. apt—get update cannot be used to add new CD—ROMs
E: Some index files failed to download. They have been ignored, or old ones used instead .
$ echo ' deb https://conversionupdates.paloaltonetworks.com/expedition-updates/' > etc/apt/sources.Iist.d/exp-repo.Iist
—bash: /etc/apt/sources.Iist.d/exp-repo.Iist: Permission denied
$ echo ' deb https://conversionupdates.paloaltonetworks.com/ expedition-updates/' > etc/apt/sources.Iist.d/exp-repo.Iist
—bash: /etc/apt/sources.Iist.d/exp-repo.Iist: Permission denied
$ cat /proc/version
Linux version 4.4.O—14Z—generic (gcc version 5.4.0 20160603 (Ubuntu 5.4.0—6
ubuntuE16.04.10) ) "168-Ubuntu SMP Wed Jan 16 21 UTC 2013
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