Can't open and lock privilege tables: Table 'mysql

presidentccj

mysql不能启动了
# more mysqld.log
091022 15:35:06  mysqld started
InnoDB: The first specified data file ./ibdata1 did not exist:
InnoDB: a new database to be created!
091022 15:35:06  InnoDB: Setting file ./ibdata1 size to 10 MB
InnoDB: Database physically writes the file full: wait...
091022 15:35:06  InnoDB: Log file ./ib_logfile0 did not exist: new to be created
InnoDB: Setting log file ./ib_logfile0 size to 5 MB
InnoDB: Database physically writes the file full: wait...
091022 15:35:06  InnoDB: Log file ./ib_logfile1 did not exist: new to be created
InnoDB: Setting log file ./ib_logfile1 size to 5 MB
InnoDB: Database physically writes the file full: wait...
InnoDB: Doublewrite buffer not found: creating new
InnoDB: Doublewrite buffer created
InnoDB: Creating foreign key constraint system tables
InnoDB: Foreign key constraint system tables created
091022 15:35:06  InnoDB: Started; log sequence number 0 0
091022 15:35:06 [ERROR] Fatal error: Can't open and lock privilege tables: Table 'mysql.host' doesn't exist
091022 15:35:06  mysqld ended
091109 12:20:34  mysqld started
091109 12:20:34  InnoDB: Database was not shut down normally!
InnoDB: Starting crash recovery.
InnoDB: Reading tablespace information from the .ibd files...
InnoDB: Restoring possible half-written data pages from the doublewrite
InnoDB: buffer...
091109 12:20:34  InnoDB: Starting log scan based on checkpoint at
InnoDB: log sequence number 0 36808.
InnoDB: Doing recovery: scanned up to log sequence number 0 43634
091109 12:20:34  InnoDB: Starting an apply batch of log records to the database...
InnoDB: Progress in percents: 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 3
9 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 8
3 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99
InnoDB: Apply batch completed
091109 12:20:34  InnoDB: Flushing modified pages from the buffer pool...
091109 12:20:34  InnoDB: Started; log sequence number 0 43634
091109 12:20:34 [ERROR] Fatal error: Can't open and lock privilege tables: Table 'mysql.host' doesn't exist
091109 12:20:34  mysqld ended

执行mysql_install_db
重启数据库，发现数据库初始化了，幸好是测试

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