I got the following error message:

I got the following error when trying to run mysql server on a fresh reinstallation on Debian 7 on my VPS:

Stopping MySQL database server: mysqld.
131114 5:01:54 [Note] Plugin 'FEDERATED' is disabled.
131114 5:01:54 InnoDB: The InnoDB memory heap is disabled
131114 5:01:54 InnoDB: Mutexes and rw_locks use GCC atomic builtins
131114 5:01:54 InnoDB: Compressed tables use zlib 1.2.7
131114 5:01:54 InnoDB: Using Linux native AIO
131114 5:01:54 InnoDB: Warning: io_setup() failed with EAGAIN. Will make 5 attempts before giving up.
InnoDB: Warning: io_setup() attempt 1 failed.
InnoDB: Warning: io_setup() attempt 2 failed.
InnoDB: Warning: io_setup() attempt 3 failed.
InnoDB: Warning: io_setup() attempt 4 failed.
InnoDB: Warning: io_setup() attempt 5 failed.
131114 5:01:57 InnoDB: Error: io_setup() failed with EAGAIN after 5 attempts.
InnoDB: You can disable Linux Native AIO by setting innodb_use_native_aio = 0 in my.cnf
131114 5:01:57 InnoDB: Fatal error: cannot initialize AIO sub-system
131114 5:01:57 [ERROR] Plugin 'InnoDB' init function returned error.
131114 5:01:57 [ERROR] Plugin 'InnoDB' registration as a STORAGE ENGINE failed.
131114 5:01:57 [ERROR] Unknown/unsupported storage engine: InnoDB
131114 5:01:57 [ERROR] Aborting
131114 5:01:57 [Note] /usr/sbin/mysqld: Shutdown complete

Fix:
Disable aio.
Edit /etc/mysql/my.cnf

nano /etc/mysql/my.cnf

In section [mysqld], add the following line:

innodb_use_native_aio=0

Joel G Mathew

Joel G Mathew, known in tech circles by the pseudonym Droidzone, is an opensource and programming enthusiast.

He is a full stack developer, whose favorite languages are currently Python and Vue.js. He is also fluent in Javascript, Flutter/Dart, Perl, PHP, SQL, C and bash shell scripting. He loves Linux, and can often be found tinkering with linux kernel code, and source code for GNU applications. He used to be an active developer on XDA forums, and his tinkered ROMS used to be very popular in the early 2000s.

His favorite pastime is grappling with GNU compilers, discovering newer Linux secrets, writing scripts, hacking roms, and programs (nothing illegal), reading, blogging. and testing out the latest gadgets.

When away from the tech world, Dr Joel G. Mathew is a practising ENT Surgeon, busy with surgeries and clinical practise.