Questions about updates. This is a very general tag. If you have a tag that's more specific (e.g. the package name that your question is about) please use that one.

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47
votes
9answers
23k views

Trouble downloading updates due to a “Hash sum mismatch” error

When I check for updates, I get a "Failed To Download Repository Information" error. This is what comes up under details: W: Failed to fetch ...
84
votes
9answers
48k views

How to prevent updating of a specific package?

Because of bug #693758 I'd like to prevent apt-get upgrade and Update Manager from updating the "libgtk2.0-0" package. How can this be achieved?
19
votes
3answers
53k views

How do I fix a “Failed to download package files” error?

After I installed Ubuntu , I cannot update any software with the error message "failed to download package files". After having googled, I have tried: sudo apt-get update sudo apt-get upgrade ...
27
votes
8answers
115k views

How to update kernel to the latest mainline version without any Distro-upgrade?

Currently I'm running Linux-3.0 and I want to update it to Linux-3.3.1 the latest stable kernel release as mentioned at http://www.kernel.org. Can I update to 3.3.1 in Ubuntu without any risk of ...
10
votes
4answers
3k views

Update Manager Error - Authentication Error

When I run Update Manager I get this error: This is what the error box says: W: A error occurred during the signature verification. The repository is not updated and the previous index files ...
39
votes
7answers
54k views

Update Error: Require Installation Of Untrusted Packages

It didn't fixed the error. So, how do I fix my GUI update? For every software I have to install it from command line because I got same error when install software from Ubuntu Software Center.
100
votes
8answers
231k views

What does “sudo apt-get update” do?

I am wondering what sudo apt-get update does? What does it update?
57
votes
11answers
7k views

Why can't I update applications without upgrading the whole OS?

In Ubuntu, once a release is out the software one has installed receives security updates only. In Windows, I can get new versions of programs with new features. How can Windows do this and why can't ...
60
votes
5answers
19k views

How do I enable automatic updates?

Update Manager is constantly offering me updates (e.g. security fixes, updates from PPAs). How can I tell my Ubuntu installation to automatically download and install updates whenever they become ...
21
votes
1answer
12k views

Should I upgrade to the “mainline” kernels?

Newer "mainline" versions of the kernel are available from the Ubuntu kernel team, e.g. 3.4 and 3.5, while Ubuntu 12.04 is on 3.2. What are the mainline kernels? Are they better than my existing ...
83
votes
0answers
96k views

How do I remove a PPA added via command-line? [duplicate]

I added a PPA for updating my kernel for ubuntu-12.04. Later, I found that the kernel doesnot exist on the link within PPA. I used this command. sudo add-apt-repository ppa:kernel-ppa/ppa Now if I ...
8
votes
7answers
20k views

How can I work around “something wicked happened resolving” mirror errors?

I see the following being queried all over. But don't see any answers or did I miss them ? Seems to be a strange use of language. Something wicked happened. Is this a form of malware ? How do I get ...
9
votes
7answers
13k views

How can I update Ubuntu offline without using Synaptic or Keryx?

I use Ubuntu 12.04 at my home and have good internet connection and my system works fine. One of my friend is having small office and he is thinking to switch from Windows to Ubuntu 11.10 or above. ...
12
votes
1answer
20k views

Ubuntu not booting: “Could not write bytes: broken pipes”

The problem When I boot Ubuntu 11.10, the boot process hangs, before even getting to the login screen of the display manager, with the message Could not write bytes: broken pipes at the top of the ...
34
votes
6answers
14k views

Where can I look up my update history?

Is there a place where I can look what updates I've installed?
7
votes
4answers
10k views

Why are updates downloading so slow?

All other connection speeds are normal, average download speed is about 2mbps but my updates are lucky to get to 100kbps. Updates and this website are the only things running any ideas what the ...
1
vote
1answer
2k views

Why did my Canon or Epson printer stop working after a recent update on 12.04?

I have a Canon (or Epson) printer and use Ubuntu 12.04. It looks like my printer has partially stopped working after a recent update -- only half of the last page is printed out (sometimes this ...
28
votes
4answers
2k views

When will Ubuntu include delta updates?

I'm tired of downloading 300mb updates. Windows has done delta updating since XP. It's just silly to download the whole thing if just a few bits of the package change.
1
vote
0answers
3k views

Update manager generates 404 error while attempting update. Will not update [duplicate]

Possible Duplicate: How can I fix a 404 Error using a PPA? While running update manager in Ubuntu 11.10 Oneric Ocelot I receive this list of errors. > W:Failed to fetch > ...
36
votes
5answers
9k views

apt-get update only for a specific repository

When I add a ppa and I want to install some of its content is quite annoying to re-update all my apt list using apt-get update Is it instead possible to only sync the content of a given repository?
6
votes
0answers
354 views

How can I fix a 404 Error using the Ubuntu archives? [duplicate]

Possible Duplicate: How to install software or upgrade from old unsupported release? When running an update I get these errors: :Failed to fetch ...
45
votes
11answers
4k views

Can't update because the word prox* is blocked

I live in Ethiopia and the government blocks all urls with the word "proxy" in them. I couldn't use that word in the title above because that would make the url contain the word proxy. When I ...
12
votes
2answers
13k views

could not mount /dev/mapper/cryptswap1

I have just had a major issue with my Ubuntu 11.04 Natty which I think is going to end up in a reinstall :-( This is problem one of two so I've put them as two questions. For some unknown reason I ...
0
votes
1answer
970 views

error occured while running sudo apt-get install -f

I get this error Sub-process /usr/bin/dpkg returned an error code (1) so I tried sudo apt-get clean and autoclean. When I ran sudo dpkg --configure -a: Errors were encountered while processing: ...
87
votes
6answers
56k views

How can I install just security updates from the command line?

sudo apt-get upgrade installs all updates, not just security updates. I know that I can use Update Manager to select only important security updates, but is there a way to do this from the command ...
23
votes
5answers
26k views

How do I install the latest stable version of LibreOffice?

LibreOffice is seeing some dramatic improvements each version and subversion that goes out. I would like to have always the latest version of LibreOffice on my machine(s). I know of the PPA that ...
18
votes
4answers
33k views

apt-get update very slow, stuck at “Waiting for headers”

I have looked at similar questions: Stuck at 0% [waiting for headers] (apt) apt-get update stuck on "Waiting for Headers" However neither one of them answer my problem. I am running ...
7
votes
4answers
106k views

Apt-Get Update: failure to fetch; can't connect to any sources

I realize there are dozens of "apt-get update: failure to fetch" questions (I read through all I could find), but my present circumstance is unique to 12.04 and it affects all sources; not just ...
4
votes
3answers
3k views

Ubuntu 13.10, kernel still 3.8.0-31-generic

I updated from 13.04 to 13.10 but uname -r still says I am on 3.8.0-31-generic. How can i fix this and get 3.11 or 3.12 ?
22
votes
5answers
8k views

Update available message after installing update

I have just updated my HTPC to 13.04 (using do-release-upgrade) and when logging in I get the "new release available" message, while there isn't as I've just upgraded and running that version. ...
8
votes
5answers
18k views

How to fix “-5 No address associated with hostname error” while updating?

I am getting this error frequently while updating Ubuntu 12.04 LTS. How can I fix it? Log is: Ign http://archive.scrapy.org precise/main Translation-en Fetched 6,620 kB in 1min 21s (81.2 kB/s) W: ...
1
vote
1answer
416 views

Update information outdated, “Failed to fetch cdrom” [duplicate]

I have a warning triangle on the top of my screen. When I click on it, it says that my update information is outdated. When I type sudo apt-get update && sudo apt-get upgrade into a terminal, ...
2
votes
1answer
7k views

How do I fix a download issue when updating? [duplicate]

Possible Duplicate: How can I fix a 404 Error using a PPA? For some reason every time I try to update by terminal, synaptic, and update manager I get this error message and I cannot update ...
16
votes
2answers
6k views

How to enable silent automatic updates for any repository?

I read here how to enable silent automatic updates for Google Chrome. However, I have other repositories like spotify, docky and others for which I would like to enable silent updates. I am trying ...
15
votes
4answers
2k views

Why does Ubuntu only support versions for a limited time (and what does it mean)?

Why is it that Ubuntu only support a version for a limited time? Since I have been on this site I have seen many references to particular versions not being supported. What does it actually mean? ...
8
votes
1answer
5k views

How do I resume a release upgrade/update?

Yesterday I started the upgrade from 12.10 to 13.04, but I interrupted it because it was taking too long. Now if I restart it, it doesn't proceed. Is there any possibility to clean the mess he left ...
9
votes
5answers
32k views

Solving the Ubuntu 12.04 Update Error: (-5 - No address associated with hostname)

Problem Description: Each time i try to download the updates for my operating system (Ubuntu 12.04) i get the following list of error messages: W:Failed to fetch ...
6
votes
2answers
8k views

How to skip kernel update?

I am running Ubuntu 12.04.1 LTS i686 on VirtulBox. Every time I check the updates, there's a new Linux kernel. If I install the new kernel, I have to install the Virtulbox Guest Additions again and ...
5
votes
1answer
8k views

Getting “Failed to download repository information” error while updating?

I updated to 12.04 a week ago. Everything is fine, However when I recently tried to update by using the update manager, The update stopped and I received the error message: Failed to download ...
14
votes
2answers
1k views

What is apt-fast and should I use it?

Several times over the past couple years, I've heard of people using apt-fast for updating and installing packages, but I'm not really sure what it does. I think I've traced its origin to this forum ...
6
votes
1answer
4k views

Problems with apt-get update (-11 -System error) and GitHub

I am having some problems when running apt-get update: W: Failed to fetch http://br.archive.ubuntu.com/ubuntu/dists/raring/Release.gpg Something wicked happened resolving 'br.archive.ubuntu.com:http' ...
3
votes
2answers
2k views

Updated Nvidia graphics driver, now won't make it past the boot screen

I recently installed a ASUS GTX560 graphics card in my desktop and out of the box everything was working fine. I decided to check for available updates and one of the suggested ones was the most ...
2
votes
2answers
1k views

I can't use update manager, access Ubuntu related sites or Launchpad

I turned on my computer today and when I tried to run updates through Update Manager, it would just sit there slowly loading a repository forever. Then I tried to access ubuntuforums.org and it ...
14
votes
1answer
11k views

“method driver /usr/lib/apt/methods/https could not be found” update error

sudo apt-get update E: The method driver /usr/lib/apt/methods/https could not be found. michael@Ubuntu:~$ sudo apt-get clean michael@Ubuntu:~$ cd /var/lib/apt michael@Ubuntu:/var/lib/apt$ sudo mv ...
2
votes
0answers
5k views

"Your system is running in low-graphics mode'' on an Acer Aspire 5552 [duplicate]

Possible Duplicate: How to fix “The system is running in low-graphics mode” error? I own a Acer Aspire 5552 laptop, which has Ubuntu on it. And now i updated it to 12.04 LTS from 11.10. ...
39
votes
9answers
91k views

How to fix missing GPG keys?

I have just installed Ubuntu 12.04 and I added some repo and when apt-get update i got missing gpg key. Following command seems to doesn't work for me: apt-get update 2> /tmp/keymissing; for key ...
4
votes
2answers
5k views

How to disable a particular PPA?

I want to lock updating from the ppa:ricotz/testing repository. I don't want to purge it. I just want to lock the updates from that repository. How do I do it?
8
votes
2answers
2k views

Why are my apt-get update fetches so large? [duplicate]

Possible Duplicate: the size of apt-get update lists is too big After clean installing 12.04 (Release Candidate), and accepting all updates and upgrades till today, I find that sudo apt-get ...
14
votes
3answers
9k views

“Failure to download extra data files” after installing ttf-mscorefonts-installer

After fresh install 12.04 I && updating apt and system restart, I always get this annoying message after reboot : Failure to download extra data files The following packages requested ...
10
votes
3answers
1k views

How do software updates work?

I would like to know how software updates work for my Ubuntu Server 10.10. I have been recommended to use apt-get install for installing new software and apt-get update for updating software for a ...