There was a bug fix awhile back for this problem: . My problem is the opposite of this bug fix.  On my test partition when I try to upgrade 16.04 to 18.04 and I run:  ~$ sudo do-release-upgrade Checking for a new Ubuntu release Get:1 Upgrade tool signature [819 B]                                                        Get:2 Upgrade tool [1,253 kB]                                                               Fetched 1,254 kB in 0s (0 B/s)                                                              authenticate 'artful.tar.gz' against 'artful.tar.gz.gpg'  extracting 'artful.tar.gz'   It is selecting Artful (17.10) and not Bionic (18.04).  If I change /etc/update-manager/release-upgrades last line from:  Prompt=normal   to:  Prompt=lts   and rerun do-release-upgrade I get this:  $ sudo do-release-upgrade Checking for a new Ubuntu release No new release found.   Assuming 18.04 has been properly populated into Canonical Repositories, what am I doing wrong???
1545
I'm following the , but on launching the upgrade tool I get this response:  Checking for a new ubuntu release No new release found   Am I doing something wrong? Is there a workaround?
93913
I have Git version 1.5.4.3 installed, but I think this must be an old version. I'm running Ubuntu Hardy 8.04. I need to install at least version 1.6 to get a Git GUI to work. How do I upgrade my installation?  Update: I managed to upgrade my installation of Git, but I also realized that my version of Ubuntu was old so I upgraded to the newest version, which automatically gave me access to newer packages (including Git).
71550
When trying to upgrade using the terminal, my upgrade stops. This is the line showing in the terminal:  The required dependency 'apt(&gt;=1.0.10.2 ubuntu2)' is not installed.   my problem is that I don't know the command to install this dependency. Using other commands, it says apt is up to date. Solutions?
19932
Using Ubuntu, I have a habit of running: sudo apt update sudo apt upgrade   on every startup. But for a month, I guess, there have been no updates whatsoever. The message shows: All packages are up to date  Now I am starting to worry. Can there be a fault in my update manager? As far as I know, I've made no changes to the package manager settings. But no updates for almost a month seems kind of weird. Any feedback would be helpful. Thanks.
43849
Did something expire that should not have? I am using debug symbols on my Ubuntu 20.10 install, and now I get this when I run the apt-get update command. W: An error occurred during the signature verification. The repository is not updated and the previous index files will be used. GPG error: http://ddebs.ubuntu.com groovy Release: The following signatures were invalid: EXPKEYSIG C8CAB6595FDFF622 Ubuntu Debug Symbol Archive Automatic Signing Key (2016) &lt;ubuntu-archive@lists.ubuntu.com&gt;
8854
I am running Ubuntu 14.04 LTS. Today when I logged into my computer I got an update alert saying that I could upgrade to Ubuntu 16.04 LTS. The other options were not now or do not upgrade. If I chose to upgrade will it delete my /home directories and the installed software under /opt and /usr/local ?
57501
Both apt-get update and upgrade hang:  sudo apt-get update [sudo] password for xxx:  0% [Connecting to archive.ubuntu.com (2001:67c:1360:8001::17)]   I'm able to ping archive.ubuntu.com:  ping archive.ubuntu.com PING archive.ubuntu.com (91.189.88.162) 56(84) bytes of data. 64 bytes from yukinko.canonical.com (91.189.88.162): icmp_seq=1 ttl=50 time=42.2 ms 64 bytes from yukinko.canonical.com (91.189.88.162): icmp_seq=2 ttl=50 time=42.1 ms 64 bytes from yukinko.canonical.com (91.189.88.162): icmp_seq=3 ttl=50 time=42.1 ms ^C --- archive.ubuntu.com ping statistics --- 3 packets transmitted, 3 received, 0% packet loss, time 2002ms rtt min/avg/max/mdev = 42.169/42.206/42.265/0.240 ms   I checked , and I don't think its the same issue.  Any tips for investigating this further?
89523
I'm using Ubuntu 11.04. The update manager once found the new release 'oneiric', and still shows up this screen when I log on use ssh:  Welcome to Ubuntu 11.04 (GNU/Linux 2.6.38-14-generic x86_64)   * Documentation:  https://help.ubuntu.com/  0 packages can be updated. 0 updates are security updates.  New release 'oneiric' available. Run 'do-release-upgrade' to upgrade to it.  Last login: Wed Apr 25 16:22:48 2012 from ***   But I didn't upgrade then, and change my apt sources. And now I cannot upgrade to 'oneiric'. do-relase-upgrade shows:  $ sudo do-release-upgrade Checking for a new ubuntu release No new release found $   And apt-get dist-upgrade shows:  $ sudo apt-get dist-upgrade Reading package lists... Done Building dependency tree Reading state information... Done Calculating upgrade... Done 0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded. $   I can successfully update all my packages.    File contents of source.list:  $ cat /etc/apt/sources.list ## See sources.list(5) for more information, especialy # Remember that you can only use http, ftp or file URIs  deb http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ natty main universe restricted multiverse deb-src http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ natty main universe restricted multiverse deb http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ natty-security universe main multiverse restricted deb-src http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ natty-security universe main multiverse restricted deb http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ natty-updates universe main multiverse restricted deb-src http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ natty-updates universe main multiverse restricted deb http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ natty-backports universe main multiverse restricted deb-src http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ natty-backports universe main multiverse restricted   # deb http://ubuntu.dormforce.net/ubuntu/ lucid main universe restricted multiverse # deb-src http://ubuntu.dormforce.net/ubuntu/ lucid main universe restricted multiverse # deb http://ubuntu.dormforce.net/ubuntu/ lucid-security universe main multiverse restricted # deb-src http://ubuntu.dormforce.net/ubuntu/ lucid-security universe main multiverse restricted # deb http://ubuntu.dormforce.net/ubuntu/ lucid-updates universe main multiverse restricted # deb-src http://ubuntu.dormforce.net/ubuntu/ lucid-updates universe main multiverse restricted  # CDROMs are managed through the apt-cdrom tool. # deb http://archive.canonical.com lucid partner # deb http://archive.canonical.com lucid-security partner # deb http://archive.canonical.com lucid-updates partner # deb-src http://archive.canonical.com lucid partner # deb-src http://archive.canonical.com lucid-security partner # deb-src http://archive.canonical.com lucid-updates partner   #medibuntu repo # deb http://packages.medibuntu.org/ lucid free non-free # deb-src http://packages.medibuntu.org/ lucid free non-free  # deb http://extras.ubuntu.com/ubuntu maverick main #Third party developers repository deb http://mirrors.sohu.com/ubuntu/ natty main restricted multiverse universe deb-src http://mirrors.sohu.com/ubuntu/ natty main universe restricted multiverse #Added by software-properties deb http://security.ubuntu.com/ubuntu/ natty-security universe main multiverse restricted deb-src http://mirrors.sohu.com/ubuntu/ natty-security universe main multiverse restricted deb http://mirrors.sohu.com/ubuntu/ natty-updates universe main multiverse restricted deb-src http://mirrors.sohu.com/ubuntu/ natty-updates universe main multiverse restricted   File contents of /etc/update-manager/meta-release:  $ cat /etc/update-manager/meta-release # default location for the meta-release file  [METARELEASE] URI = http://changelogs.ubuntu.com/meta-release URI_LTS = http://changelogs.ubuntu.com/meta-release-lts URI_UNSTABLE_POSTFIX = -development URI_PROPOSED_POSTFIX = -proposed   What may be the problem of this?
108099
I've just set up a new machine with Ubuntu Oneiric 11.10 and then run  apt-get update apt-get upgrade apt-get install git   Now if I run git --version it tells me I have git version 1.7.5.4 but on my local machine I have the much newer git version 1.7.9.2  I know I can install from source to get the newest version, but I thought that it was a good idea to use the package manager as much as possible to keep everything standardized.  So is it possible to use apt-get to get a newer version of git, and what is the right way to do it?
3113
I am currently using Ubuntu 10.04. I know there is a 10.10 release, but can I upgrade directly to 11.04? Could you walk me through the steps please?
83147
I want to upgrade my Ubuntu 13.04 to Ubuntu 13.10. I'm unable to do via GUI.   [ The reason why I'm unable to do so:  Via software updater, I proceed ahead and click upgrade (for upgrading my OS). I authenticate by providing my password. Then it proceeds and downloads upgrade tool. That time only (while downloading the tool) error message comes "system program problem detected". It then doesn't proceed ahead and I click to report the problem ]  So, I tried via command line but here also I couldn't succeed upgrading my OS.  For the same I ran   $ sudo apt-get update   Then I ran  $ sudo apt-get dist-upgrade   And then:  ravbholua@ravbholua-Aspire-5315:~$ sudo do-release-upgrade Checking for a new Ubuntu release Get:1 Upgrade tool signature [198 B]                                                                                                  Get:2 Upgrade tool [1,135 kB]                                                                                                         Fetched 1,135 kB in 6s (32.9 kB/s)                                                                                                    authenticate 'saucy.tar.gz' against 'saucy.tar.gz.gpg'  gpg exited 2 Debug information:    gpg: Signature made Friday 01 November 2013 10:34:27 AM IST using DSA key ID 437D05B5 gpg: Can't check signature: public key not found  Authentication failed Authenticating the upgrade failed. There may be a problem with the network or with the server.  ravbholua@ravbholua-Aspire-5315:~$    Please suggest how to go ahead and upgrade my OS.
51958
The update from Trusty to Xenial is officially available via the software updater. After updating all packages, upgrading through the software updater yields:  Fetching the upgrade failed. There may be a network problem.   Doing a sudo do-release-upgrade yields:      Checking for a new Ubuntu release Err Upgrade tool signature                                                        403  Sorry, not allowed to fetch that type of file: xenial.tar.gz.gpg         Err Upgrade tool                                                                  403  Sorry, not allowed to fetch that type of file: xenial.tar.gz             Fetched 0 B in 0s (0 B/s)                                                       WARNING:root:file 'xenial.tar.gz.gpg' missing Failed to fetch Fetching the upgrade failed. There may be a network problem.
20435
I have  about how to upgrade ghostscript to a version that is available on 15.04 but not on 14.04LTS (which I have). On this site there are numerous almost identical question regarding different packages, a few examples include:         So I thought it would be very useful in general to know: is there  a general, automated way to upgrade a package, including all its dependencies, to a version that is newer than Ubuntu's repos? Is this more easily done if the newer version exists in more recent Ubuntu releases?
103211
When I ssh into the server it says:  11 packages can be updated. 11 updates are security updates.   Then I verify that everything is installed:  canonical-livepatch status --verbose   And this is what I get:  client-version: 9.3.0 machine-id: xxx machine-token: xxx architecture: x86_64 cpu-model: Intel(R) Xeon(R) CPU E3-1246 v3 @ 3.50GHz last-check: 2019-05-15T18:08:12Z boot-time: 2019-05-11T10:06:52Z uptime: 104h34m56s status: - kernel: 4.15.0-48.51-generic   running: true   livepatch:     checkState: checked     patchState: nothing-to-apply     version: ""     fixes: ""   So there is nothing to apply? How about those 11 security updates then?  UPDATE:  As requested this is the list of upgradeable:  apt list --upgradable    intel-microcode/bionic-security,bionic-updates,bionic-updates,bionic-security 3.20190514.0ubuntu0.18.04.2 amd64 [upgradable from: 3.20180807a.0ubuntu0.18.04.1] libwbclient0/bionic-security,bionic-updates,bionic-updates,bionic-security 2:4.7.6+dfsg~ubuntu-0ubuntu2.10 amd64 [upgradable from: 2:4.7.6+dfsg~ubuntu-0ubuntu2.9] linux-generic/bionic-security,bionic-updates,bionic-updates,bionic-security 4.15.0.50.52 amd64 [upgradable from: 4.15.0.48.50] linux-headers-generic/bionic-security,bionic-updates,bionic-updates,bionic-security 4.15.0.50.52 amd64 [upgradable from: 4.15.0.48.50] linux-image-generic/bionic-security,bionic-updates,bionic-updates,bionic-security 4.15.0.50.52 amd64 [upgradable from: 4.15.0.48.50] linux-libc-dev/bionic-security,bionic-updates,bionic-updates,bionic-security 4.15.0-50.54 amd64 [upgradable from: 4.15.0-48.51] python3-distupgrade/bionic-updates,bionic-updates,bionic-updates,bionic-updates 1:18.04.32 all [upgradable from: 1:18.04.31] ubuntu-release-upgrader-core/bionic-updates,bionic-updates,bionic-updates,bionic-updates 1:18.04.32 all [upgradable from: 1:18.04.31]
17076
(This question was not resolved. Due to time constraints Computer was restored to factory settings.)  I was attempting to upgrade from 14.04 to 16.04, but apt threw this error:  The required dependency 'apt (&gt;= 1.0.1ubuntu2.13)' is not installed.   What does this mean, and how can I fix it?  When I type in the command apt-cache policy apt  Shageenth@shageenth-Inspiron-3451:~$ apt-cache policy apt apt: Installed: 1.0.1ubuntu2.11 Candidate: 1.0.1ubuntu2.11 Version table: *** 1.0.1ubuntu2.11 0 100 /var/lib/dpkg/status 1.0.1ubuntu2 0 500 http://us.archive.ubuntu.com/ubuntu/ trusty/main amd64  Packages   The error happens when I run the command:   sudo do-release-upgrade -d   and it produces the following:  Checking for a new Ubuntu release Get:1 Upgrade tool signature [198 B] Get:2 Upgrade tool [1,265 kB] Fetched 1,265 kB in 0s (0 B/s) authenticate 'xenial.tar.gz' against 'xenial.tar.gz.gpg' extracting 'xenial.tar.gz'  Reading cache  Checking package manager Reading package lists... Done Building dependency tree Reading state information... Done Building data structures... Done  Required depends is not installed  The required dependency 'apt (&gt;= 1.0.1ubuntu2.13)' is not installed.
2531
How do I upgrade to the unreleased version of Ubuntu for testing?
27136
I am trying to upgrade to a new Ubuntu version but the update manager does not recognize an update. Why not?