upgrade - errors upgrading from 14.04 to 16.04 about Unknown Multi-Arch type for compiz, libkf5akonadisearch-bin packages - Ask Ubuntu


i'm trying upgrade 14.04 machine 16.04 using do-release-upgrade. after downloading package lists wily, see following errors:

unknown multi-arch type 'no' package 'compiz-core' unknown multi-arch type 'no' package 'compiz-gnome' ignoring provides line depcompareop package python-cffi-backend-api-max ignoring provides line depcompareop package python-cffi-backend-api-min ignoring provides line depcompareop package python3-cffi-backend-api-max ignoring provides line depcompareop package python3-cffi-backend-api-min unknown multi-arch type 'no' package 'libkf5akonadisearch-bin' ignoring provides line depcompareop package php-psr-http-message-implementation ignoring provides line depcompareop package php-psr-log-implementation ignoring provides line depcompareop package php-math-biginteger unknown multi-arch type 'no' package 'compiz-core' unknown multi-arch type 'no' package 'compiz-gnome' ignoring provides line depcompareop package python-cffi-backend-api-max ignoring provides line depcompareop package python-cffi-backend-api-min ignoring provides line depcompareop package python3-cffi-backend-api-max ignoring provides line depcompareop package python3-cffi-backend-api-min unknown multi-arch type 'no' package 'libkf5akonadisearch-bin' unknown multi-arch type 'no' package 'compiz-core' unknown multi-arch type 'no' package 'compiz-gnome' unknown multi-arch type 'no' package 'compiz-core' unknown multi-arch type 'no' package 'compiz-gnome' may want run apt-get update correct these problems 

it proceeds abort installation. suggested run of apt-get update doesn't seem anything. googling above error messages yielded others having similar problems when upgrading other, previous releases, although i've not come across apparent fixes. it's suggested apt upgrade fix problem, don't see way (it's date latest trusty package).

what should in order upgrade directly 16.04?

this bug in apt, , yes, fix upgrade apt.

edit /etc/apt/sources.list , uncomment these lines:

deb http://au.archive.ubuntu.com/ubuntu/ wily main restricted deb http://au.archive.ubuntu.com/ubuntu/ wily-updates main restricted 

now run apt-get update , you'll see same errors 'unknown multi-arch type'.

now upgrade apt:

apt-get install --only-upgrade apt 

now run release installer:

do-release-upgrade 

:)


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