1)
Description: Ubuntu Bionic Beaver (development branch)
Release: 18.04
2)
apt:
Installed: 1.6.10
Candidate: 1.6.10
Version table:
*** 1.6.10 100
100 /var/lib/dpkg/status
3)
I would expect a helpful error message, saying there's not enough disk space, or maybe even pointing at the /tmp partition.
4)
My /tmp partition was full, when I tried `apt-get update`. It failed with the following errors:
Get:1 http://de.archive.ubuntu.com/ubuntu bionic InRelease [242 kB]
Err:1 http://de.archive.ubuntu.com/ubuntu bionic InRelease
Splitting up /var/lib/apt/lists/partial/de.archive.ubuntu.com_ubuntu_dists_bionic_InRelease into data and signature failed
Get:2 http://security.ubuntu.com/ubuntu bionic-security InRelease [88,7 kB]
Err:2 http://security.ubuntu.com/ubuntu bionic-security InRelease
Splitting up /var/lib/apt/lists/partial/security.ubuntu.com_ubuntu_dists_bionic-security_InRelease into data and signature failed
Get:3 http://de.archive.ubuntu.com/ubuntu bionic-updates InRelease [88,7 kB]
Err:3 http://de.archive.ubuntu.com/ubuntu bionic-updates InRelease
Splitting up /var/lib/apt/lists/partial/de.archive.ubuntu.com_ubuntu_dists_bionic-updates_InRelease into data and signature failed
Get:4 http://de.archive.ubuntu.com/ubuntu bionic-backports InRelease [74,6 kB]
Err:4 http://de.archive.ubuntu.com/ubuntu bionic-backports InRelease
Splitting up /var/lib/apt/lists/partial/de.archive.ubuntu.com_ubuntu_dists_bionic-backports_InRelease into data and signature failed
Reading package lists... Done
W: GPG error: http://de.archive.ubuntu.com/ubuntu bionic InRelease: Splitting up /var/lib/apt/lists/partial/de.archive.ubuntu.com_ubuntu_dists_bionic_InRelease into data and signature failed
E: The repository 'http://de.archive.ubuntu.com/ubuntu bionic InRelease' is not signed.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.
W: GPG error: http://security.ubuntu.com/ubuntu bionic-security InRelease: Splitting up /var/lib/apt/lists/partial/security.ubuntu.com_ubuntu_dists_bionic-security_InRelease into data and signature failed
E: The repository 'http://security.ubuntu.com/ubuntu bionic-security InRelease' is not signed.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.
W: GPG error: http://de.archive.ubuntu.com/ubuntu bionic-updates InRelease: Splitting up /var/lib/apt/lists/partial/de.archive.ubuntu.com_ubuntu_dists_bionic-updates_InRelease into data and signature failed
E: The repository 'http://de.archive.ubuntu.com/ubuntu bionic-updates InRelease' is not signed.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.
W: GPG error: http://de.archive.ubuntu.com/ubuntu bionic-backports InRelease: Splitting up /var/lib/apt/lists/partial/de.archive.ubuntu.com_ubuntu_dists_bionic-backports_InRelease into data and signature failed
E: The repository 'http://de.archive.ubuntu.com/ubuntu bionic-backports InRelease' is not signed.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.
The hint at unsigned repositories is misleading and it took quite some time to figure out the real problem. Therefore, I would expect an error message pointing at the real culprit, which in this case was missing disk space.
---
After removing files from /tmp, apt-get update succeeds as expected:
Get:1 http://de.archive.ubuntu.com/ubuntu bionic InRelease [242 kB]
Get:2 http://de.archive.ubuntu.com/ubuntu bionic-updates InRelease [88,7 kB]
Get:3 http://security.ubuntu.com/ubuntu bionic-security InRelease [88,7 kB]
Get:4 http://de.archive.ubuntu.com/ubuntu bionic-backports InRelease [74,6 kB]
Get:5 http://de.archive.ubuntu.com/ubuntu bionic/main amd64 Packages [1.019 kB]
Get:6 http://de.archive.ubuntu.com/ubuntu bionic/main Translation-en [516 kB]
Get:7 http://de.archive.ubuntu.com/ubuntu bionic/restricted amd64 Packages [9.184 B]
Get:8 http://de.archive.ubuntu.com/ubuntu bionic/restricted Translation-en [3.584 B]
Get:9 http://de.archive.ubuntu.com/ubuntu bionic/universe amd64 Packages [8.570 kB]
Get:10 http://security.ubuntu.com/ubuntu bionic-security/main amd64 Packages [284 kB]
Get:11 http://security.ubuntu.com/ubuntu bionic-security/main Translation-en [104 kB]
Get:12 http://security.ubuntu.com/ubuntu bionic-security/restricted amd64 Packages [4.296 B]
Get:13 http://security.ubuntu.com/ubuntu bionic-security/restricted Translation-en [2.192 B]
Get:14 http://de.archive.ubuntu.com/ubuntu bionic/universe Translation-en [4.941 kB]
Get:15 http://de.archive.ubuntu.com/ubuntu bionic/multiverse amd64 Packages [151 kB]
Get:16 http://de.archive.ubuntu.com/ubuntu bionic/multiverse Translation-en [108 kB]
Get:17 http://de.archive.ubuntu.com/ubuntu bionic-updates/main amd64 Packages [560 kB]
Get:18 http://de.archive.ubuntu.com/ubuntu bionic-updates/main Translation-en [207 kB]
Get:19 http://de.archive.ubuntu.com/ubuntu bionic-updates/restricted amd64 Packages [6.996 B]
Get:20 http://de.archive.ubuntu.com/ubuntu bionic-updates/restricted Translation-en [3.076 B]
Get:21 http://de.archive.ubuntu.com/ubuntu bionic-updates/universe amd64 Packages [747 kB]
Get:22 http://de.archive.ubuntu.com/ubuntu bionic-updates/universe Translation-en [196 kB]
Get:23 http://de.archive.ubuntu.com/ubuntu bionic-updates/multiverse amd64 Packages [6.388 B]
Get:24 http://de.archive.ubuntu.com/ubuntu bionic-updates/multiverse Translation-en [3.452 B]
Get:25 http://de.archive.ubuntu.com/ubuntu bionic-backports/main amd64 Packages [1.024 B]
Get:26 http://de.archive.ubuntu.com/ubuntu bionic-backports/main Translation-en [448 B]
Get:27 http://de.archive.ubuntu.com/ubuntu bionic-backports/universe amd64 Packages [3.468 B]
Get:28 http://de.archive.ubuntu.com/ubuntu bionic-backports/universe Translation-en [1.604 B]
Fetched 4.649 kB in 4s (1.266 kB/s)
Reading package lists... Done
Status changed to 'Confirmed' because the bug affects multiple users.