对mysql数据库初始化过程中，会有如下报错信息：
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[root@localhost scripts]
# ./mysql_install_db --user=mysql
FATAL ERROR: Could not
find
.
/bin/my_print_defaults
If you compiled from
source
, you need to run
'make install'
to
copy the software into the correct location ready
for
operation.
If you are using a binary release, you must either be at the
top
level of the extracted archive, or pass the --basedir option
pointing to that location.
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按照报错信息，去mysql安装目录的bin目下查找是否有_print_defaults，在第一列的第七行有发现这个文件
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[root@localhost bin]
# ls
innochecksum mysql_client_test mysql_setpermission
msql2mysql mysql_client_test_embedded mysqlshow
myisamchk mysql_config mysqlslap
myisam_ftdump mysql_convert_table_format mysqltest
myisamlog mysqld mysqltest_embedded
myisampack mysqld_multi mysql_tzinfo_to_sql
my_print_defaults mysqld_safe mysql_upgrade
mysql mysqldump mysql_waitpid
mysqlaccess mysqldumpslow mysql_zap
mysqlaccess.conf mysql_find_rows perror
mysqladmin mysql_fix_extensions replace
mysqlbinlog mysqlhotcopy resolveip
mysqlbug mysqlimport resolve_stack_dump
mysqlcheck mysql_secure_installation
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看来其实不是没有这个文件，不是这个问题。
认真查看报错信息，可注意到那个路径是相对路径，是以mysql的安装目录为起始。
而初始化则是进去初始化脚本目录里运行脚本，而在这个目录下不会有./bin/my_print_defaults的。
所以回到安装目录以相对路径去执行初始化脚本。
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[root@localhost mysql]# ./scripts/mysql_install_db --user=mysql
Installing MySQL system tables...
OK
Filling help tables...
OK
To start mysqld at boot time you have to copy
support-files/mysql.server to the right place for your system
PLEASE REMEMBER TO SET A PASSWORD FOR THE MySQL root USER !
To do so, start the server, then issue the following commands:
./bin/mysqladmin -u root password 'new-password'
./bin/mysqladmin -u root -h localhost.localdomain password 'new-password'
Alternatively you can run:
./bin/mysql_secure_installation
which will also give you the option of removing the test
databases and anonymous user created by default. This is
strongly recommended for production servers.
See the manual for more instructions.
You can start the MySQL daemon with:
cd . ; ./bin/mysqld_safe &
You can test the MySQL daemon with mysql-test-run.pl
cd ./mysql-test ; perl mysql-test-run.pl
Please report any problems with the ./bin/mysqlbug script!
[root@localhost mysql]#
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OK！初始化成功！
希望能对大家有帮助