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498:20190826 solve ubuntu boot directory full problem.<br><table width=800 border=8><tr><td bgcolor=cyan><p>(1) 手動移除/boot中過期的系統檔。</p>
<p>$ <span style="background-color: #ffff99;">sudo apt-get autoremove --purge</span></p>
<p>...<br />移除 linux-modules-4.4.0-154-generic (4.4.0-154.181) 中...<br />Purging configuration files for linux-modules-4.4.0-154-generic (4.4.0-154.181) ...<br /><br /></p>
<p>(2)設定自動移除：</p>
<p>$ sudo vi /etc/apt/apt.conf.d/50unattended-upgrades</p>
<p>修改如下設定為真</p>
<p><span style="background-color: #ffff99;">Unattended-Upgrade::Remove-Unused-Dependencies "true";</span></p>
<p>&nbsp;</p>
<p>&nbsp;</p></table><br> select id,article_id,topic,text from lt_articles_text where article_id =498; ok.
update lt_articles set num_reads=num_reads +1 where id=498; ok.