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I had installed MySQL server 5.1.1 on my PC (windows 7 ultimate 32bit, CPU Dual core 2.60 MHz, 2.00 GB RAM) and it was up and running well, until last Wednesday I was forced to uninstall it, and now when I reinstall it,in the last level of creating server instance, when I press execute, It checks OK for 'prepare configuration' and 'write configuration file', but in 'start server' it faces an error and doesn't continue... and afterward when I try to start MySQL service manually from windows services, It says: "Windows could not start MySQL service on local computer. Error 1067: The process terminated unexpectedly." When I wanna check error log to see why? the data folder of mysql is empty! I tried everything: port 3306 is open and no one is listening on it. my firewall has mysql exception and I even disabled it. i even tried new versions of mysql 5.1.2 it's the same. What should I do... please guys! this is urgent.

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migrated from Nov 11 '10 at 16:40

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If your 'data' Directory is empty you already found the problem. It ain't supposed to empty, at least the 'mysql' Directory within and files are necessary so it can start.

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Heh, well spotted! :) +1 – Pekka 웃 Nov 10 '10 at 11:45
thanks, but how can i fix it... the error is from installation and I don't know how to fix this? – Ehphan Nov 10 '10 at 11:56

Look into the server's error log (your_hostname.err). You should find a detailed message there.

IIRC, 1067 is a missing data directory.

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I fixed this empty folder somehow and now in .err files there is some errors:101110 15:23:12 [ERROR] Can't open the mysql.plugin table. Please run mysql_upgrade to create it. I ran mysql_upgrade but it's still the same and wth starting mysql server the error does not change – Ehphan Nov 10 '10 at 11:59
@Ehphan well, then fix the errors? – Pekka 웃 Nov 10 '10 at 11:59
and there's also another error in the last line of error log and says: 101110 15:29:08 [ERROR] Fatal error: Can't open and lock privilege tables: Table '' doesn't exist – Ehphan Nov 10 '10 at 12:04
@Ehphan You need certain tables in the data directory. They should have been installed automatically. You should find them and copy them over – Pekka 웃 Nov 10 '10 at 12:31

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