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Hello - this year's project is to learn about MySQL, Apache and PHP and to get them working together to produce web databases. I've got a copy of a book ...
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- 03-05-2007 #1
MySQL: problems starting it
I've got a copy of a book by O'Reilly which suggests I should compile MySQL from source. This makes sense when trying to get it working with PHP because you then get all the mysql_config files in the right places for PHP to compile against.
My problem isn't compiling MySQL: that went well; it's getting it to start. A lot of people seem to have this problem.
I have an error code 13, and Googling won't turn up an answer. It seems to be a problem with mysqld accessing directories. I've tried every combination of chown I can think of. I've copied the MySQL config file (called my.cnf) into /etc . My error message looks like this:
070305 11:43:41 mysqld started /usr/local/mysql/libexec/mysqld: Can't read dir of '/root/tmp/' (Errcode: 13) /usr/local/mysql/libexec/mysqld: Can't create/write to file '/root/tmp/ibGsqDEW' (Errcode: 13) 070305 11:43:41 InnoDB: Error: unable to create temporary file; errno: 13 070305 11:43:41 [ERROR] Can't init databases 070305 11:43:41 [ERROR] Aborting 070305 11:43:41 [Note] /usr/local/mysql/libexec/mysqld: Shutdown complete 070305 11:43:41 mysqld ended
If I install MySQL as an rpm I can start it from Mandriva's front-end ... but then I can't easily get PHP working with it.I am always doing that which I can not do, in order that I may learn how to do it. - Pablo Picasso
- 03-05-2007 #2
No worries. This looked impossible but this page gave me the answer (at the bottom under 'Quick FAQ').
The solution: as root do export TMPDIR=/tmp then run ./mysqld_safe --user=mysql &
Without Google I wouldn't have had a chance to sort this out. It seems that when you compile from source, environment variables aren't set up correctly. The error messages are slightly misleading!I am always doing that which I can not do, in order that I may learn how to do it. - Pablo Picasso
- 03-05-2007 #3
That problem seems to only happen on Mandriva because the use a seperate tmp directory for each user. Another way to resolve the issue is to edit my.cnf and make sure that the temp directory is set to /tmp.
- 03-05-2007 #4Originally Posted by daark.child
I found plenty of posts about the problem on other forums. A lot of these were very long, very articulate and completely wrong! Many of them hadn't been resolved because they only focused on the chown and chmod commands.I am always doing that which I can not do, in order that I may learn how to do it. - Pablo Picasso