. ERROR! The server quit without updating PID file(/usr/local/mysql/data/3940510-42c130. pid).

当出现"ERROR! The server quit without updating PID file"的错误时，可能有几种可能性。其中一种可能性是MySQL用户没有足够的权限来修改数据目录。可以通过执行"chown -R mysql.mysql /usr/local/mysql/data"来授予MySQL用户权限。

另一种可能性是与syslog(3)事件相关。如果产生了syslog(3)事件，则需要使用一个空的/etc/syslogd.conf文件运行syslogd(8)，否则不需要运行它。

另外，在处理这个问题时，你可能需要进入u-boot shell，并更改cmdline来设置bootargs为"noinitrd root=/dev/mtdblock0 console=ttySAC0 init=/init"。如果你想重复这个过程，可以在u-boot shell中执行以上步骤，并输入"y"来重新启动。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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