Ubuntu
mysql-5.7 package

  1. Bug #1602763
  2. Comment #3

Comment 3 for bug 1602763

Revision history for this message
Christian Ehrhardt  (paelzer) wrote :

Verified:
echo "invalid_mysql_option=foo" >> /etc/mysql/my.cnf.
Then on upgrade it should fail to start and complain - now with a reasonable message.
Going from Trusty -> Xenial-Proposed now with aforementioned change in place I see:

ERROR: Unable to start MySQL server:
2016-07-20T13:15:02.743028Z 0 [ERROR] unknown variable 'key_buffer=16M'
2016-07-20T13:15:02.746251Z 0 [ERROR] Aborting
Please take a look at https://wiki.debian.org/Teams/MySQL/FAQ for tips on fixing common upgrade issues.

That is one of the old variables (now key_buffer_size) which just reflects what would happen on old custom-config.
=> Verified