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[joomla] mysqldump error - ' Can't create/write to file...'

David Roth davidalanroth at gmail.com
Mon Feb 27 20:12:51 EST 2012


Hi Scott.

Thanks for the reply.

I'm able at the command line do a mysql -p and login with the usual
password. Are you referring to resetting some other
password/permissions for the mysqld?

Never had a serious MySQL problem like this before. Time for the long pants. :-)

David Roth

On Mon, Feb 27, 2012 at 7:13 PM, Scott Wolpow <scott at wolpow.com> wrote:
> Hmm,
> Sounds like you MySql root user got corrupted.
>
> I suggest you search on lost MySql root password and follow those
> directions.
> SW
>
>
> On 2/27/2012 2:37 PM, David Roth wrote:
>>
>> I'm using Joomla 2.5.1 on my CentOS 6.2 server running MySQL Server
>> version: 5.1.61.  All the sudden I get error messages when logged in
>> as Admin when trying to access the Menu Manager items such as Home.
>> Things were working fine the night before so I look in the PHP error
>> log:
>>
>> [27-Feb-2012 01:23:47] PHP Notice:  Trying to get property of
>> non-object in
>> /home/www/html/staging/administrator/includes/application.php
>> on line 275
>> [27-Feb-2012 01:23:47] PHP Notice:  Undefined property:
>> stdClass::$params in
>> /home/www/html/staging/administrator/includes/application.php on line
>> 276
>> [27-Feb-2012 01:23:47] PHP Warning:  Invalid argument supplied for
>> foreach() in
>> /home/www/html/staging/libraries/joomla/database/database/mysql.php
>> on line 377
>> [27-Feb-2012 01:23:47] PHP Notice:  Trying to get property of
>> non-object in
>> /home/www/html/staging/administrator/includes/application.php
>> on line 275
>> [27-Feb-2012 01:23:47] PHP Notice:  Undefined property:
>> stdClass::$params in
>> /home/www/html/staging/administrator/includes/application.php on line
>> 276
>> [27-Feb-2012 01:23:47] PHP Warning:  Invalid argument supplied for
>> foreach() in
>> /home/www/html/staging/libraries/joomla/database/database/mysql.php
>> on line 377
>> [27-Feb-2012 01:23:47] PHP Warning:  Invalid argument supplied for
>> foreach() in
>> /home/www/html/staging/libraries/joomla/database/database/mysql.php
>> on line 377
>> [27-Feb-2012 01:23:47] PHP Warning:  Invalid argument supplied for
>> foreach() in /home/www/html/staging/libraries/joomla/database/table.php
>> on line 406
>> [27-Feb-2012 01:23:47] PHP Notice:  Trying to get property of
>> non-object in
>> /home/www/html/staging/administrator/components/com_menus/models/item.php
>> on line 544
>> [27-Feb-2012 01:23:47] PHP Warning:  Invalid argument supplied for
>> foreach() in
>> /home/www/html/staging/libraries/joomla/database/database/mysql.php
>> on line 377
>> [27-Feb-2012 01:23:47] PHP Warning:  Invalid argument supplied for
>> foreach() in
>> /home/www/html/staging/libraries/joomla/database/database/mysql.php
>> on line 377
>> [27-Feb-2012 01:23:47] PHP Warning:  Invalid argument supplied for
>> foreach() in /home/www/html/staging/libraries/joomla/database/table.php
>> on line 406
>> [27-Feb-2012 01:23:47] PHP Warning:  Invalid argument supplied for
>> foreach() in
>> /home/www/html/staging/libraries/joomla/database/database/mysql.php
>> on line 377
>> [27-Feb-2012 01:23:47] PHP Warning:  Invalid argument supplied for
>> foreach() in
>> /home/www/html/staging/libraries/joomla/database/database/mysql.php
>> on line 377
>> [27-Feb-2012 01:23:47] PHP Warning:  Invalid argument supplied for
>> foreach() in /home/www/html/staging/libraries/joomla/database/table.php
>> on line 406
>>
>> So it appears to be MySQL related. So I decided to do a mysqldump of
>> the database Joomla 2.5.1 is using to rebuild the database and come up
>> with this error message:
>>
>> mysqldump: Couldn't execute 'show fields from `cmyzk_assets`': Can't
>> create/write to file '/tmp/#sql_6da_0.MYI' (Errcode: 13) (1)
>>
>> I do a ' perror 13' command to see what Errcode 13 means and get this:
>> OS error code  13:  Permission denied
>>
>> This doesn't make sense to me because I'm logged in as root doing all
>> this. Furthermore, I didn't change anything (that I know of).  I
>> looked to see how MySql is running:
>>
>> root      1665  0.0  0.0 108256  1432 ?        S    12:15   0:00
>> /bin/sh /usr/bin/mysqld_safe --datadir=/home/mysql
>> --socket=/var/lib/mysql/mysql.sock
>> --pid-file=/var/run/mysqld/mysqld.pid --basedir=/usr --user=mysql
>> mysql     1754  0.0  0.5 217712 19536 ?        Sl   12:15   0:01
>> /usr/libexec/mysqld --basedir=/usr --datadir=/home/mysql --user=mysql
>> --log-error=/var/log/mysqld.log --pid-file=/var/run/mysqld/mysqld.pid
>> --socket=/var/lib/mysql/mysql.sock
>>
>> I don't know what the next step should be. I'd appreciate suggestions.
>> Thanks!
>>
>> David Roth
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>
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