I am trying to install curl using
apt-get install curl
But it is producing errors:
Err:1 http://security.ubuntu.com/ubuntu xenial-security/main amd64 curl amd64 7.47.0-1ubuntu2.12
404 Not Found
Err:1 http://security.ubuntu.com/ubuntu xenial-security/main amd64 curl amd64 7.47.0-1ubuntu2.12
404 Not Found
E: Failed to fetch http://security.ubuntu.com/ubuntu/pool/main/c/curl/curl_7.47.0-1ubuntu2.12_amd64.deb 404 Not Found
My Thoughts:
I referred to this article, then I realized that since my version 16.04 LTS, so it's still supported, and it's not the problem.
I also read this question, but both answers can't be applied to my case (apt-get update fails and xenial-security is present in http://security.ubuntu.com/ubuntu/dists/).
Next, I visited the URL http://security.ubuntu.com/ubuntu/pool/main/c/curl, and I figured out that curl_7.47.0-1ubuntu2.13_amd64.deb is there instead of curl_7.47.0-1ubuntu2.12_amd64.deb, which is being requested by apt-get. As a result, I deduce that apt-get should ask for 2.13 rather than 2.12, hence the title.
However, I am kind of stuck here. I am not sure what I should do next to resolve this issue, and I appreciate any advice.
Output of cat /etc/apt/sources.list
#deb cdrom:[Ubuntu 16.04.2 LTS _Xenial Xerus_ - Release amd64 (20170215.2)]/ xenial main restricted
# See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to
# newer versions of the distribution.
deb http://tw.archive.ubuntu.com/ubuntu/ xenial main restricted
# deb-src http://tw.archive.ubuntu.com/ubuntu/ xenial main restricted
## Major bug fix updates produced after the final release of the
## distribution.
deb http://tw.archive.ubuntu.com/ubuntu/ xenial-updates main restricted
# deb-src http://tw.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://tw.archive.ubuntu.com/ubuntu/ xenial universe
# deb-src http://tw.archive.ubuntu.com/ubuntu/ xenial universe
deb http://tw.archive.ubuntu.com/ubuntu/ xenial-updates universe
# deb-src http://tw.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://tw.archive.ubuntu.com/ubuntu/ xenial multiverse
# deb-src http://tw.archive.ubuntu.com/ubuntu/ xenial multiverse
deb http://tw.archive.ubuntu.com/ubuntu/ xenial-updates multiverse
# deb-src http://tw.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.
deb http://tw.archive.ubuntu.com/ubuntu/ xenial-backports main restricted universe multiverse
# deb-src http://tw.archive.ubuntu.com/ubuntu/ xenial-backports main restricted universe multiverse
## 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 partner
deb http://security.ubuntu.com/ubuntu xenial-security main restricted
# deb-src http://security.ubuntu.com/ubuntu xenial-security main restricted
deb http://security.ubuntu.com/ubuntu xenial-security universe
# deb-src http://security.ubuntu.com/ubuntu xenial-security universe
deb http://security.ubuntu.com/ubuntu xenial-security multiverse
# deb-src http://security.ubuntu.com/ubuntu xenial-security multiverse
Output of apt-get update
Hit:1 http://tw.archive.ubuntu.com/ubuntu xenial InRelease
Get:2 http://tw.archive.ubuntu.com/ubuntu xenial-updates InRelease [109 kB]
Get:3 http://tw.archive.ubuntu.com/ubuntu xenial-backports InRelease [107 kB]
Hit:4 http://packages.microsoft.com/repos/vscode stable InRelease
Get:5 http://tw.archive.ubuntu.com/ubuntu xenial-updates/main amd64 Packages [957 kB]
Get:6 http://tw.archive.ubuntu.com/ubuntu xenial-updates/main i386 Packages [824 kB]
Get:7 http://tw.archive.ubuntu.com/ubuntu xenial-updates/main Translation-en [381 kB]
Ign:8 http://tw.archive.ubuntu.com/ubuntu xenial-updates/main amd64 DEP-11 Metadata
Ign:9 http://tw.archive.ubuntu.com/ubuntu xenial-updates/main DEP-11 64x64 Icons
Get:10 http://tw.archive.ubuntu.com/ubuntu xenial-updates/universe amd64 Packages [748 kB]
Get:11 http://security.ubuntu.com/ubuntu xenial-security InRelease [109 kB]
Get:12 http://tw.archive.ubuntu.com/ubuntu xenial-updates/universe i386 Packages [685 kB]
Get:13 http://tw.archive.ubuntu.com/ubuntu xenial-updates/universe Translation-en [311 kB]
Ign:14 http://tw.archive.ubuntu.com/ubuntu xenial-updates/universe amd64 DEP-11 Metadata
Ign:15 http://tw.archive.ubuntu.com/ubuntu xenial-updates/universe DEP-11 64x64 Icons
Get:16 http://tw.archive.ubuntu.com/ubuntu xenial-updates/multiverse amd64 Packages [16.7 kB]
Get:17 http://tw.archive.ubuntu.com/ubuntu xenial-updates/multiverse i386 Packages [15.8 kB]
Ign:18 http://tw.archive.ubuntu.com/ubuntu xenial-updates/multiverse amd64 DEP-11 Metadata
Ign:8 http://tw.archive.ubuntu.com/ubuntu xenial-updates/main amd64 DEP-11 Metadata
Ign:9 http://tw.archive.ubuntu.com/ubuntu xenial-updates/main DEP-11 64x64 Icons
Ign:14 http://tw.archive.ubuntu.com/ubuntu xenial-updates/universe amd64 DEP-11 Metadata
Ign:15 http://tw.archive.ubuntu.com/ubuntu xenial-updates/universe DEP-11 64x64 Icons
Ign:18 http://tw.archive.ubuntu.com/ubuntu xenial-updates/multiverse amd64 DEP-11 Metadata
Ign:19 http://tw.archive.ubuntu.com/ubuntu xenial-backports/main amd64 DEP-11 Metadata
Ign:20 http://tw.archive.ubuntu.com/ubuntu xenial-backports/universe amd64 DEP-11 Metadata
Ign:8 http://tw.archive.ubuntu.com/ubuntu xenial-updates/main amd64 DEP-11 Metadata
Get:9 http://tw.archive.ubuntu.com/ubuntu xenial-updates/main DEP-11 64x64 Icons [309 kB]
Err:9 http://tw.archive.ubuntu.com/ubuntu xenial-updates/main DEP-11 64x64 Icons
Hash Sum mismatch
Ign:14 http://tw.archive.ubuntu.com/ubuntu xenial-updates/universe amd64 DEP-11 Metadata
Ign:18 http://tw.archive.ubuntu.com/ubuntu xenial-updates/multiverse amd64 DEP-11 Metadata
Ign:19 http://tw.archive.ubuntu.com/ubuntu xenial-backports/main amd64 DEP-11 Metadata
Ign:20 http://tw.archive.ubuntu.com/ubuntu xenial-backports/universe amd64 DEP-11 Metadata
Ign:19 http://tw.archive.ubuntu.com/ubuntu xenial-backports/main amd64 DEP-11 Metadata
Ign:20 http://tw.archive.ubuntu.com/ubuntu xenial-backports/universe amd64 DEP-11 Metadata
Get:19 http://tw.archive.ubuntu.com/ubuntu xenial-backports/main amd64 DEP-11 Metadata [7280 B]
Err:19 http://tw.archive.ubuntu.com/ubuntu xenial-backports/main amd64 DEP-11 Metadata
Hash Sum mismatch
Get:21 http://security.ubuntu.com/ubuntu xenial-security/main amd64 Packages [648 kB]
Get:22 http://security.ubuntu.com/ubuntu xenial-security/main i386 Packages [535 kB]
Get:23 http://security.ubuntu.com/ubuntu xenial-security/main Translation-en [264 kB]
Ign:24 http://security.ubuntu.com/ubuntu xenial-security/main amd64 DEP-11 Metadata
Ign:25 http://security.ubuntu.com/ubuntu xenial-security/main DEP-11 64x64 Icons
Get:26 http://security.ubuntu.com/ubuntu xenial-security/universe amd64 Packages [435 kB]
Get:27 http://security.ubuntu.com/ubuntu xenial-security/universe i386 Packages [378 kB]
Get:28 http://security.ubuntu.com/ubuntu xenial-security/universe Translation-en [176 kB]
Ign:29 http://security.ubuntu.com/ubuntu xenial-security/universe amd64 DEP-11 Metadata
Ign:30 http://security.ubuntu.com/ubuntu xenial-security/universe DEP-11 64x64 Icons
Ign:31 http://security.ubuntu.com/ubuntu xenial-security/multiverse amd64 DEP-11 Metadata
Ign:24 http://security.ubuntu.com/ubuntu xenial-security/main amd64 DEP-11 Metadata
Ign:25 http://security.ubuntu.com/ubuntu xenial-security/main DEP-11 64x64 Icons
Ign:29 http://security.ubuntu.com/ubuntu xenial-security/universe amd64 DEP-11 Metadata
Ign:30 http://security.ubuntu.com/ubuntu xenial-security/universe DEP-11 64x64 Icons
Ign:31 http://security.ubuntu.com/ubuntu xenial-security/multiverse amd64 DEP-11 Metadata
Ign:24 http://security.ubuntu.com/ubuntu xenial-security/main amd64 DEP-11 Metadata
Err:25 http://security.ubuntu.com/ubuntu xenial-security/main DEP-11 64x64 Icons
Could not open file /var/lib/apt/lists/partial/security.ubuntu.com_ubuntu_dists_xenial-security_main_dep11_icons-64x64.tar.gz - open (13: Permission denied) [IP: 91.189.91.23 80]
Ign:29 http://security.ubuntu.com/ubuntu xenial-security/universe amd64 DEP-11 Metadata
Ign:30 http://security.ubuntu.com/ubuntu xenial-security/universe DEP-11 64x64 Icons
Ign:31 http://security.ubuntu.com/ubuntu xenial-security/multiverse amd64 DEP-11 Metadata
Ign:24 http://security.ubuntu.com/ubuntu xenial-security/main amd64 DEP-11 Metadata
Fetched 5766 kB in 14s (394 kB/s)
Reading package lists... Done
E: Failed to fetch http://tw.archive.ubuntu.com/ubuntu/dists/xenial-updates/main/dep11/Components-amd64.yml Could not open file /var/lib/apt/lists/partial/tw.archive.ubuntu.com_ubuntu_dists_xenial-updates_main_dep11_Components-amd64.yml.xz - open (13: Permission denied)
E: Failed to fetch http://tw.archive.ubuntu.com/ubuntu/dists/xenial-updates/main/dep11/icons-64x64.tar Hash Sum mismatch
E: Failed to fetch http://tw.archive.ubuntu.com/ubuntu/dists/xenial-updates/universe/dep11/icons-64x64.tar Could not open file /var/lib/apt/lists/partial/tw.archive.ubuntu.com_ubuntu_dists_xenial-updates_universe_dep11_icons-64x64.tar.gz - open (13: Permission denied)
E: Failed to fetch http://tw.archive.ubuntu.com/ubuntu/dists/xenial-backports/main/dep11/Components-amd64.yml Hash Sum mismatch
E: Failed to fetch http://tw.archive.ubuntu.com/ubuntu/dists/xenial-backports/universe/dep11/Components-amd64.yml Could not open file /var/lib/apt/lists/partial/tw.archive.ubuntu.com_ubuntu_dists_xenial-backports_universe_dep11_Components-amd64.yml.xz - open (13: Permission denied)
E: Failed to fetch http://security.ubuntu.com/ubuntu/dists/xenial-security/main/dep11/icons-64x64.tar Could not open file /var/lib/apt/lists/partial/security.ubuntu.com_ubuntu_dists_xenial-security_main_dep11_icons-64x64.tar.gz - open (13: Permission denied) [IP: 91.189.91.23 80]
E: Some index files failed to download. They have been ignored, or old ones used instead.
cat /etc/apt/sources.list. – Olimjon May 30 '19 at 14:25sudo apt updatebit is pretty important to the system: "update" tells the system what versions of what programs are available - since you can't run update, your installation does not know the correct version. Or many other important things, like security updates. Please append your question with the output ofsudo apt updateand this site will try to help you fix that problem, which will make the problem you wrote about, go away. – Charles Green May 30 '19 at 14:29sudowhen you ran the command? – Charles Green May 30 '19 at 14:38sudo su. Besides, I successfullyapt-get updateby referring to this question, hence the original problem is also solved. Thank you for pointing out how importantapt-get updateis, and I think I will update the question to emphasize this. – David Chen May 30 '19 at 14:44sudo rm /var/lib/apt/lists/partial/*, and thensudo apt-get updatecan be executed successfully. – David Chen May 30 '19 at 14:49sudo apt updateto bring your system up to date, andsudo apt install curl– Charles Green May 30 '19 at 14:50