[Bug 1312936] Re: Post-installation script fails

[Arnaud Koëbel]

Strange. I just tested this on a fresh 14.04 VM with 512Mb RAM.

>From the original message : 
"AppArmor parser error for /etc/apparmor.d/usr.sbin.mysqld in /etc/apparmor.d/usr.sbin.mysqld at line 44: Could not open 'local/usr.sbin.mysqld'", the apparmor problem seems clear.

That doesn't mean there isn't something else wrong.

On my new setup, MySQL 5.6 installed without trouble (created my empty
file beforehand. I'll have to check it without) and runs. It requires
1.1 Gb of virtual RAM, but only occupies 440Mb at startup, so it runs
fine (granted, it should run into trouble soon). Maybe the difference is
what other packages you installed : apache2 itself would eat enough RAM
to OOM a machine on Mysql install.

The innodb buffer pool seems to be 128Mb on my machine, which is the official default value.
mysqlcalculator states that RAM usage at 128Mb buffer pool is close to 700Mb (to be compared with the 576Mb RAM occupied by the previous 8Mb 5.5 default buffer pool) => Neither should be able to run out of the box with 512Mb RAM only.

With small machines, I think your best bet would be to deploy a my.cnf
file prior to the mysql package installation (or to put a file in
/etc/mysql/conf.d) with some alterations to the configuration
(max_connections = 50 alone shaves 200Mb off RAM requirements) to ensure
mysql will start and run fine.

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https://bugs.launchpad.net/bugs/1312936

Title:
  Post-installation script fails

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