http://wiki.cas.mcmaster.ca/index.php?action=history&feed=atom&title=Device_is_busy 2026-04-09T04:48:33Z Revision history for this page on the wiki MediaWiki 1.15.1 http://wiki.cas.mcmaster.ca/index.php?title=Device_is_busy&diff=10&oldid=prev 2007-04-09T17:36:22Z

<p></p> <table style="background-color: white; color:black;"> <col class='diff-marker' /> <col class='diff-content' /> <col class='diff-marker' /> <col class='diff-content' /> <tr valign='top'> <td colspan='2' style="background-color: white; color:black;">← Older revision</td> <td colspan='2' style="background-color: white; color:black;">Revision as of 17:36, 9 April 2007</td> </tr> <tr><td colspan="2" class="diff-lineno">Line 1:</td> <td colspan="2" class="diff-lineno">Line 1:</td></tr> <tr><td class='diff-marker'>-</td><td style="background: #ffa; color:black; font-size: smaller;"><div><del class="diffchange diffchange-inline">&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; </del>'''umount ---&quot;device is busy!&quot; ''' &nbsp;</div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins class="diffchange diffchange-inline">&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; </ins></div></td></tr> <tr><td colspan="2">&nbsp;</td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins class="diffchange diffchange-inline">==&nbsp; </ins>'''umount ---&quot;device is busy!&quot; ''' <ins class="diffchange diffchange-inline">==</ins></div></td></tr> <tr><td colspan="2">&nbsp;</td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins class="diffchange diffchange-inline"> </ins></div></td></tr> <tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr> <tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>When using Linux, after finishing using CDROM or floppy disk, when try to un-mount them, sometimes users may get an error message &quot;device is busy&quot;.</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>When using Linux, after finishing using CDROM or floppy disk, when try to un-mount them, sometimes users may get an error message &quot;device is busy&quot;.</div></td></tr> <!-- diff generator: internal 2026-04-09 04:48:33 --> </table>

RobertLi http://wiki.cas.mcmaster.ca/index.php?title=Device_is_busy&diff=9&oldid=prev 2007-04-09T15:59:15Z

<p>error message when try to un-mount a CDROM or floppy disk in Linux</p> <p><b>New page</b></p><div> '''umount ---&quot;device is busy!&quot; ''' <br /> <br /> When using Linux, after finishing using CDROM or floppy disk, when try to un-mount them, sometimes users may get an error message &quot;device is busy&quot;.<br /> <br /> In this situation, first, make sure you are not in the /mnt/floppy or /mnt/cdrom directory when issuing the &quot;umount&quot; command. Second make sure no file and directory in the floppy disk or cdrom is used by any applications. If you still get the &quot;device is busy&quot; error message, &quot;fuser&quot; command may be used to further trouble shooting.<br /> <br /> Command &quot;fuser -u /dev/fd0&quot; or &quot;fuser -u /dev/cdrom&quot; will give you information as which processes and users are using the floppy drive or cdrom. Then you can kill the processes. This may help you to unmount the device.<br /> <br /> You may also use the command &quot;fuser -k /dev/fd0&quot; or &quot;fuser -k /dev/cdrom&quot; to directly kill the processes which are using the filesystem.</div>

RobertLi