package mariadb-server automatically aborts downgrading but users don't read the dpkg terminal output to see this

[botos eli]

stop the instalation with error

ProblemType: Package
DistroRelease: Ubuntu 14.10
Package: mariadb-server-5.5 (not installed)
ProcVersionSignature: Ubuntu 3.16.0-33.44-generic 3.16.7-ckt7
Uname: Linux 3.16.0-33-generic x86_64
ApportVersion: 2.14.7-0ubuntu8.2
Architecture: amd64
Date: Wed Apr 1 19:36:25 2015
DuplicateSignature: package:mariadb-server-5.5:(not installed):új pre-installation szkript alfolyamat 1 hibakóddal kilépett
ErrorMessage: új pre-installation szkript alfolyamat 1 hibakóddal kilépett
InstallationDate: Installed on 2015-04-01 (0 days ago)
InstallationMedia: Ubuntu 14.10 "Utopic Unicorn" - Release amd64 (20141022.1)
SourcePackage: mariadb-5.5
Title: package mariadb-server-5.5 (not installed) failed to install/upgrade: új pre-installation szkript alfolyamat 1 hibakóddal kilépett
UpgradeStatus: No upgrade log present (probably fresh install)

[Steve Beattie (sbeattie)]

Thanks for taking the time to report this bug and helping to make Ubuntu better. We appreciate the difficulties you are facing, but this appears to be a "regular" (non-security) bug. I have unmarked it as a security issue since this bug does not show evidence of allowing attackers to cross privilege boundaries nor directly cause loss of data/privacy. Please feel free to report any other bugs you may find.

[Otto Kekäläinen (otto)]

Relevant last lines in the log:

Aborting downgrade from (at least) 5.6 to 5.5.
If are sure you want to downgrade to 5.5, remove the file
/var/lib/mysql/debian-*.flag and try installing again.

Try removing MySQL 5.6 first before you install MariaDB, otherwise the install will abort on this downgrade warning. Any all official releases of Ubuntu that include MySQL 5.6 has MariaDB 10.0 so I don't see why you anyway try to install MariaDB 5.5 after 5.6 when you should have 10.0 available.

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.