Bug #66 incorrect information in file host.frm
Submitted: 12 Feb 2003 16:14 Modified: 25 Feb 2003 11:33
Reporter: Georg Richter Email Updates:
Status: Closed Impact on me:
Category:MySQL Server Severity:S1 (Critical)
Version:4.1 OS:Any (all)
Assigned to: CPU Architecture:Any

[12 Feb 2003 16:14] Georg Richter
After latest bk pull I can't start mysqld_safe

From err-file:

Fatal error: Can't open privilege tables: Incorrect information in file: './mysql/host.frm'

Also mysql_fix_privileges_table doesn't work anymore, cause you can't start mysqld.

How to repeat:

Suggested fix:
remove mysql db, run mysql_install_db and add all settings again :(
[22 Feb 2003 5:35] jocelyn fournier
It seems the problem is due to the fact MySQL-4.1 doesn't support anymore the "old" FRM 4.0 file format :

e.g. :
SHOW CREATE TABLE forumconthardwarefr13;
ERROR 1033: Incorrect information in file:

forumconthardwarefr13.frm uses the old FRM 4.0 file format.

After performing an "alter table forumconthardwarefr13 type=myisam" under mysql-4.0.11, the table uses now the new extended FRM 4.0 file format, and MySQL-4.1 is able to read the table again.
[22 Feb 2003 13:29] jocelyn fournier
I've just figured out this problem also occurs in the latest 4.0.11 bk tree !
[22 Feb 2003 14:07] Georg Richter
SHOW TABLE STATUS on these tables crashes server in 4.1
[25 Feb 2003 11:32] Sergei Golubchik
Thank you for taking the time to write to us, but this is not
a bug. Please double-check the documentation available at
http://www.mysql.com/documentation/ and the instructions on
how to report a bug at http://bugs.mysql.com/how-to-report.php

SHOW TABLE STATUS crash - it's ticket #93.

wrong frm format - these frm files (FRM_VER+2) were created in 4.1 - and in some intermediate version. Neither 4.0 nor 4.1-latest can generate these files. It's true that 4.0.9 can read these files, and 4.0.11 cannot. Still it's a non-issue.
[25 Feb 2003 11:33] Sergei Golubchik
Oops. This "Quick Fix" field added the first paragraph automatically. I didn't mean it :)