Problems when seeking system update

[buntubarry]

Used sudo apt-get update. This is the message I received after trying to get system updates.

E: Some index files failed to download. They have been ignored, or old ones used instead.

I’ve been using terminal for updates because I am not receiving the latest updates due to failure to down,load repository updates.

[anon42388993]

Hello

Open a terminal and enter:

inxi -Sr

and please post the output

[buntubarry]

Hello v3xx, Thank you for trying to help. I tried the command line code you had given me then I restarted my computer. But again, the same error message appeared when I tried to check on system updates as stated below:

W:The repository 'cdrom://Ubuntu-MATE 16.04.2 LTS _Xenial Xerus_ - Release amd64 (20170215) xenial Release' does not have a Release file., W:Data from such a repository can't be authenticated and is therefore potentially dangerous to use., W:See apt-secure(8) manpage for repository creation and user configuration details., W:http://www.openprinting.org/download/printdriver/debian/dists/lsb3.2/Release.gpg: Signature by key F8897B6F00075648E248B7EC24CBF5474CFD1E2F uses weak digest algorithm (SHA1), E:Failed to fetch cdrom://Ubuntu-MATE 16.04.2 LTS _Xenial Xerus_ - Release amd64 (20170215)/dists/xenial/main/binary-amd64/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.

This message has appeared everytime I have tried for updates since I first installed Ubuntu Mate 16.04.2 64-bit.

Best regards,

[anon42388993]

Open up your software sources (in the main menu) and uncheck CD/DVD ROM.

[wolfman]

See also:

Ubuntu Mate Update Guide

These are my own setting preferences, use at your own risk!. AN IMPORTANT NOTE FOR LINUX BEGINNERS. WHEN YOU ARE IN RECOVERY MODE, THE KEYBOARD DEFAULTS TO US ENGLISH, IF YOU HAVE ANY OTHER LANGUAGE KEYBOARD OTHER THAN US ENGLISH, WHEN YOU TYPE "Y" (FOR "YES"), IT MIGHT SHOW UP AS A DIFFERENT LETTER, ON MY KEYBOARD I MUST PRESS THE "Z" KEY WHICH EQUATES TO "Y" AS I HAVE A GERMAN KEYBOARD, JUST PRESS "BACKSPACE" AND HIT A DIFFERENT KEY UNTIL YOU SEE THE "Y" SHOW UP!. Click on "Subscri…

[ouroumov]

@anon42388993’s advice should do it, but it’s weird that this happened in the first place.
Did you use a non-standard installation method?
Did something weird happen during the installation?

[buntubarry]

Hello v3xx , I think the problem is resolved. I had taken the check mark off of code and also removed the A software updater, I utilize Ubuntu Software updater. so I no longer het that message at all.

Barry Parker

[buntubarry]

I think I’ve cured the problem with v3xx advice and I also got rid of the A software updater and I only use the Software Udater and I don’t get that message.

Barry Parker

[buntubarry]

Hi wolfman, I think I’ve cured the problem. I took v3xx advice, but I removed the A software updater in the Welcome area and I use Ubuntu Software updater for my updates now.

Barry Parker

[buntubarry]

When seeking system updates utilizing command line this is the error message I receive:

E: Failed to fetch cdrom://Ubuntu-MATE 16.04.2 LTS Xenial Xerus - Release amd64 (20170215)/dists/xenial/main/binary-amd64/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.

[samuvuo]

Check your /etc/apt/sources.list file. You most likely have a line there starting with

deb cdrom:

Comment that out and run apt-get update again.

[ouroumov]

@buntubarry, this is the second time you report this issue so I’ve merged the two posts in the new topic into this one.
I’m surprised you’re still experiencing this issue, did you perform a new install?

[buntubarry]

Yes I did but I did not experience any difficulties at first.

[buntubarry]

Hello v3xx, I took your advice listed below and here was my answer: W: http://www.openprinting.org/download/printdriver/debian/dists/lsb3.2/Release.gpg: Signature by key F8897B6F00075648E248B7EC24CBF5474CFD1E2F uses weak digest algorithm (SHA1)

E: Failed to fetch cdrom://Ubuntu-MATE 16.04.2 LTS Xenial Xerus - Release amd64 (20170215)/dists/xenial/main/binary-amd64/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.

[anon42388993]

I’m a bit confused too. Thought we solved this. Anyhow please post the output of:

cat /etc/apt/sources.list

Thanks

[buntubarry]

Hello v3.xx, This is the printout I received. Maybe I should get another Ubuntu Mate dowload and start again from scratch. I had no idea that Ubuntu did not support this Ubuntu Mate. buntumatebp@pluto:~$ cat /etc/apt/sources.list

deb cdrom:[Ubuntu-MATE 16.04.2 LTS _Xenial Xerus_ - Release amd64 (20170215)]/ xenial main multiverse restricted universe# See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to


# newer versions of the distribution.


deb http://us.archive.ubuntu.com/ubuntu/ xenial main restricted## Major bug fix updates produced after the final release of the


## distribution.


deb http://us.archive.ubuntu.com/ubuntu/ xenial-updates main restricted## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu


## team. Also, please note that software in universe WILL NOT receive any


## review or updates from the Ubuntu security team.


deb http://us.archive.ubuntu.com/ubuntu/ xenial universe


# deb-src http://ca.archive.ubuntu.com/ubuntu/ xenial universe


deb http://us.archive.ubuntu.com/ubuntu/ xenial-updates universe


# deb-src http://ca.archive.ubuntu.com/ubuntu/ xenial-updates universe## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu 


## team, and may not be under a free licence. Please satisfy yourself as to 


## your rights to use the software. Also, please note that software in 


## multiverse WILL NOT receive any review or updates from the Ubuntu


## security team.


deb http://us.archive.ubuntu.com/ubuntu/ xenial multiverse


# deb-src http://ca.archive.ubuntu.com/ubuntu/ xenial multiverse


deb http://us.archive.ubuntu.com/ubuntu/ xenial-updates multiverse


# deb-src http://ca.archive.ubuntu.com/ubuntu/ xenial-updates multiverse## N.B. software from this repository may not have been tested as


## extensively as that contained in the main release, although it includes


## newer versions of some applications which may provide useful features.


## Also, please note that software in backports WILL NOT receive any review


## or updates from the Ubuntu security team.## Uncomment the following two lines to add software from Canonical's


## 'partner' repository.


## This software is not part of Ubuntu, but is offered by Canonical and the


## respective vendors as a service to Ubuntu users.


deb http://archive.canonical.com/ubuntu xenial partner


deb-src http://archive.canonical.com/ubuntu xenial partnerdeb http://us.archive.ubuntu.com/ubuntu/ xenial-security main restricted


deb http://us.archive.ubuntu.com/ubuntu/ xenial-security universe


# deb-src http://security.ubuntu.com/ubuntu xenial-security universe


deb http://us.archive.ubuntu.com/ubuntu/ xenial-security multiverse


# deb-src http://security.ubuntu.com/ubuntu xenial-security multiverse


deb http://www.openprinting.org/download/printdriver/debian/ lsb3.2 contrib

[anon42388993]

I had no idea that Ubuntu did not support this Ubuntu Mate.

It is supported.

Open a terminal and enter:

gksudo pluma /etc/apt/sources.list

And change only the first line:

deb cdrom:[Ubuntu-MATE 16.04.2 LTS _Xenial Xerus_ - Release amd64 (20170215)]/ xenial main multiverse restricted universe# See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to

To read:

##deb cdrom:[Ubuntu-MATE 16.04.2 LTS _Xenial Xerus_ - Release amd64 (20170215)]/ xenial main multiverse restricted universe# See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to

Thats all, just add the two ## to the front of that line. Then close, save and update.