package maas 2.6.2-7841-ga10625be3-0ubuntu1~18.04.1 failed to install/upgrade: new maas package pre-installation script subprocess returned error exit status 1

[Jeff Lane ]

Upgrading my MAAS server from Bionic / 2.6 to Focal / 2.7. The upgrade broke during handling of MAAS with a traceback. (Apologies for the formatting, this was copied from console and the formatting got skewed there for some reason).

Preparing to unpack .../6-libkrb5support0_1.17-6ubuntu4_amd64.deb ...
Unpacking libkrb5support0:amd64 (1.17-6ubuntu4) over (1.16-2ubuntu0.1) ...
Traceback (most recent call last):
File "/usr/lib/python3/dist-packages/apt/cache.py", line 289, in __getitem__
  return self._weakref[key]
File "/usr/lib/python3.6/weakref.py", line 137, in __getitem__
     o = self.data[key]()
     KeyError: '2-maas'

During handling of the above exception, another exception occurred:
                                                                          Traceback (most recent call last):
File "/usr/lib/python3/dist-packages/apt/cache.py", line 292, in __getitem__
 rawpkg = self._cache[key]
 KeyError: '2-maas'

During handling of the above exception, another exception occurred:
                                                                          Traceback (most recent call last):
File "/usr/lib/python3/dist-packages/apport/packaging_impl.py", line 126, in _apt_pkg
   return self._cache()[package]
File "/usr/lib/python3/dist-packages/apt/cache.py", line 294, in __getitem__
   raise KeyError('The cache has no package named %r' % key)
KeyError: "The cache has no package named '2-maas'"

During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/usr/share/apport/package_hook", line 48, in <module>
  pr['SourcePackage'] = apport.packaging.get_source(options.package)
File "/usr/lib/python3/dist-packages/apport/packaging_impl.py", line 159,
  in get_source
     if self._apt_pkg(package).installed:
File "/usr/lib/python3/dist-packages/apport/packaging_impl.py", line 128,
  in _apt_pkg
     raise ValueError('package %s does not exist' % package)
     ValueError: package 2-maas does not exist
                                                                          Preparing to unpack .../7-libcom-err2_1.45.5-2ubuntu1_amd64.deb ...
Unpacking libcom-err2:amd64 (1.45.5-2ubuntu1) over (1.44.1-1ubuntu1.3) ...
Errors were encountered while processing:
 /tmp/apt-dpkg-install-xFEKoD/2-maas_1%3a0.6_all.deb
Exception during pm.DoInstall(): E:Sub-process /usr/bin/dpkg returned an error code (1)

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ProblemType: Package
DistroRelease: Ubuntu 20.04
Package: maas 2.6.2-7841-ga10625be3-0ubuntu1~18.04.1
ProcVersionSignature: Ubuntu 4.15.0-65.74-generic 4.15.18
Uname: Linux 4.15.0-65-generic x86_64
ApportVersion: 2.20.9-0ubuntu7.14
Architecture: amd64
Date: Tue Apr 28 19:59:25 2020
ErrorMessage: new maas package pre-installation script subprocess returned error exit status 1
PackageArchitecture: all
Python3Details: /usr/bin/python3.6, Python 3.6.9, python3-minimal, 3.6.7-1~18.04
PythonDetails: N/A
RelatedPackageVersions:
 dpkg 1.19.0.5ubuntu2.3
 apt 1.6.12
SourcePackage: maas
Title: package maas 2.6.2-7841-ga10625be3-0ubuntu1~18.04.1 failed to install/upgrade: new maas package pre-installation script subprocess returned error exit status 1
UpgradeStatus: Upgraded to focal on 2020-04-28 (0 days ago)

[Jeff Lane  (bladernr)]

After sending this report, my system was left in a broken state:
Could not install the upgrades

The upgrade has aborted. Your system could be in an unusable state. A
recovery will run now (dpkg --configure -a).

Setting up libcom-err2:amd64 (1.45.5-2ubuntu1) ...
dpkg: dependency problems prevent configuration of maas-region-api:
 maas-region-api depends on maas (= 1:0.6); however:
  Version of maas on system is 2.6.2-7841-ga10625be3-0ubuntu1~18.04.1.

dpkg: error processing package maas-region-api (--configure):
 dependency problems - leaving unconfigured
dpkg: dependency problems prevent configuration of maas-region-controller:
 maas-region-controller depends on maas-region-api (= 1:0.6); however:
  Package maas-region-api is not configured yet.

dpkg: error processing package maas-region-controller (--configure):
 dependency problems - leaving unconfigured
dpkg: dependency problems prevent configuration of dnsutils:
 dnsutils depends on bind9-dnsutils; however:
  Package bind9-dnsutils is not installed.

dpkg: error processing package dnsutils (--configure):
 dependency problems - leaving unconfigured
Setting up libbsd0:amd64 (0.10.0-1) ...
Setting up libkrb5support0:amd64 (1.17-6ubuntu4) ...
Setting up bzip2 (1.0.8-2) ...
dpkg: dependency problems prevent configuration of maas-rack-controller:
 maas-rack-controller depends on maas (= 1:0.6); however:
  Version of maas on system is 2.6.2-7841-ga10625be3-0ubuntu1~18.04.1.

dpkg: error processing package maas-rack-controller (--configure):
 dependency problems - leaving unconfigured
Setting up libip4tc2:amd64 (1.8.4-3ubuntu2) ...
Setting up bsdmainutils (11.1.2ubuntu3) ...
Setting up libk5crypto3:amd64 (1.17-6ubuntu4) ...
Setting up libkrb5-3:amd64 (1.17-6ubuntu4) ...
Setting up libgssapi-krb5-2:amd64 (1.17-6ubuntu4) ...
Processing triggers for man-db (2.8.3-2ubuntu0.1) ...
Processing triggers for install-info (6.5.0.dfsg.1-2) ...
Processing triggers for plymouth-theme-ubuntu-text (0.9.3-1ubuntu7.18.04.2) ...
update-initramfs: deferring update (trigger activated)
Processing triggers for libc-bin (2.31-0ubuntu9) ...
Processing triggers for initramfs-tools (0.130ubuntu3.9) ...
Errors were encountered while processing:
 maas-region-api
 maas-region-controller
 dnsutils
 maas-rack-controller

Upgrade complete

The upgrade has completed but there were errors during the upgrade
process.

To continue please press [ENTER]

[Jeff Lane  (bladernr)]

after rebooting, this is what apt is telling me:
ubuntu@lxc-maas:~$ sudo apt-get dist-upgrade
Reading package lists... Done
Building dependency tree
Reading state information... Done
You might want to run 'apt --fix-broken install' to correct these.
The following packages have unmet dependencies:
 dnsutils : Depends: bind9-dnsutils but it is not installed
 maas : Depends: maas-rack-controller (= 2.6.2-7841-ga10625be3-0ubuntu1~18.04.1)
        Depends: maas-region-controller (= 2.6.2-7841-ga10625be3-0ubuntu1~18.04.1)
 maas-rack-controller : Depends: maas (= 1:0.6) but 2.6.2-7841-ga10625be3-0ubuntu1~18.04.1 is installed
 maas-region-api : Depends: maas (= 1:0.6) but 2.6.2-7841-ga10625be3-0ubuntu1~18.04.1 is installed
E: Unmet dependencies. Try 'apt --fix-broken install' with no packages (or specify a solution).

[Jeff Lane  (bladernr)]

Finally:

ubuntu@lxc-maas:~$ sudo apt-get -f install
Reading package lists... Done
Building dependency tree
Reading state information... Done
Correcting dependencies... Done
The following packages were automatically installed and are no longer required:
  archdetect-deb authbind avahi-daemon avahi-utils bind9utils curtin-common dbconfig-common dbconfig-pgsql docutils-common formencode-i18n grub-common ieee-data libavahi-client3 libavahi-common-data
  libavahi-common3 libavahi-core7 libdaemon0 libdbi-perl libdebian-installer4 libecap3 libip4tc2 libirs-export160 libisccfg-export160 libjs-angularjs libjs-sphinxdoc libjs-underscore liblcms2-2 libltdl7
  libnspr4 libnss-mdns libnss3 libpaper-utils libpaper1 libprotobuf10 libsodium23 libvirt-clients libvirt0 libwebpdemux2 libwebpmux3 libyajl2 maas-rack-controller maas-region-api maas-region-controller
  os-prober postgresql pxelinux python-babel-localedata python3-alabaster python3-babel python3-bs4 python3-bson python3-bson-ext python3-convoy python3-crochet python3-curtin python3-django
  python3-django-maas python3-django-piston3 python3-djorm-ext-pgarray python3-dnspython python3-docutils python3-formencode python3-html5lib python3-imagesize python3-iso8601 python3-lib2to3 python3-lxml
  python3-maas-client python3-maas-provisioningserver python3-macaroonbakery python3-mimeparse python3-nacl python3-netaddr python3-oauth python3-olefile python3-pbr python3-petname python3-pexpect python3-pil
  python3-ply python3-prettytable python3-protobuf python3-psycopg2 python3-ptyprocess python3-pygments python3-pymacaroons python3-pyparsing python3-pyvmomi python3-rfc3339 python3-roman
  python3-seamicroclient python3-simplejson python3-simplestreams python3-sphinx python3-sqlparse python3-tempita python3-txtftp python3-tz python3-uvloop python3-webencodings sgml-base sphinx-common squid
  squid-common squid-langpack syslinux-common xml-core
Use 'sudo apt autoremove' to remove them.
The following additional packages will be installed:
  bind9-dnsutils bind9-libs libjson-c4 liblmdb0 libmaxminddb0 libuv1 maas
Suggested packages:
  mmdb-bin
The following NEW packages will be installed:
  bind9-dnsutils bind9-libs libjson-c4 liblmdb0 libmaxminddb0
The following packages will be upgraded:
  libuv1 maas
2 upgraded, 5 newly installed, 0 to remove and 730 not upgraded.
4 not fully installed or removed.
Need to get 0 B/1433 kB of archives.
After this operation, 4240 kB of additional disk space will be used.
Do you want to continue? [Y/n] y
Preconfiguring packages ...
Selecting previously unselected package libjson-c4:amd64.
(Reading database ... 60175 files and directories currently installed.)
Preparing to unpack .../0-libjson-c4_0.13.1+dfsg-7_amd64.deb ...
Unpacking libjson-c4:amd64 (0.13.1+dfsg-7) ...
Selecting previously unselected package liblmdb0:amd64.
Preparing to unpack .../1-liblmdb0_0.9.24-1_amd64.deb ...
Unpacking liblmdb0:amd64 (0.9.24-1) ...
Selecting previously unselected package libmaxminddb0:amd64.
Preparing to unpack .../2-libmaxminddb0_1.4.2-0ubuntu1_amd64.deb ...
Unpacking libmaxminddb0:amd64 (1.4.2-0ubuntu1) ...
Preparing to unpack .../3-libuv1_1.34.2-1ubuntu1_amd64.deb ...
Unpacking l...

[Jeff Lane  (bladernr)]

ubuntu@lxc-maas:~$ snap list
Name Version Rev Tracking Publisher Notes
core18 20200311 1705 latest/stable canonical✓ base
maas-cli 0.6.5 13 latest/stable canonical✓ -
snapd 2.44.3 7264 latest/stable canonical✓ snapd

[Jeff Lane  (bladernr)]

ubuntu@lxc-maas:~$ dpkg -l |grep maas
ii maas 2.6.2-7841-ga10625be3-0ubuntu1~18.04.1 all "Metal as a Service" is a physical cloud and IPAM
ii maas-cert-server 0.4.9-0ppa1~gitdc398f0~ubuntu18.04.1 all Ubuntu certification support files for MAAS server
rc maas-common 2.6.2-7841-ga10625be3-0ubuntu1~18.04.1 all MAAS server common files
rc maas-dhcp 2.6.2-7841-ga10625be3-0ubuntu1~18.04.1 all MAAS DHCP server
rc maas-proxy 2.6.2-7841-ga10625be3-0ubuntu1~18.04.1 all MAAS Caching Proxy
iU maas-rack-controller 1:0.6 all Transitional package to the maas snap
iU maas-region-api 1:0.6 all Transitional package to the maas snap
iU maas-region-controller 1:0.6 all Transitional package to the maas snap
ii python3-django-maas 2.6.2-7841-ga10625be3-0ubuntu1~18.04.1 all MAAS server Django web framework (Python 3)
ii python3-maas-client 2.6.2-7841-ga10625be3-0ubuntu1~18.04.1 all MAAS python API client (Python 3)
ii python3-maas-provisioningserver 2.6.2-7841-ga10625be3-0ubuntu1~18.04.1 all MAAS server provisioning libraries (Python 3)

[Adam Collard (adam-collard)]

snapd failing to install when upgraded in a container is https://bugs.launchpad.net/snapd/+bug/1865503

[Alberto Donato (ack)]

The udev setup failure seems related to https://bugs.launchpad.net/snapd/+bug/1865503, which happens with snaps running in containers.

[Jeff Lane  (bladernr)]

Per ack's request:

ubuntu@lxc-maas:~$ dpkg -l |grep snapd
ii snapd 2.42.1+18.04 amd64 Daemon and tooling that enable snap packages

ubuntu@lxc-maas:~$ snap version
snap 2.44.3
snapd 2.44.3
series 16
ubuntu 20.04
kernel 4.15.0-65-generic