https://www.thinkwiki.org/w/index.php?action=history&feed=atom&title=Problems_accessing_cdrom_drive 2026-05-16T19:49:21Z Revision history for this page on the wiki MediaWiki 1.31.12 https://www.thinkwiki.org/w/index.php?title=Problems_accessing_cdrom_drive&diff=48259&oldid=prev 2010-04-16T18:58:01Z

<p>←Created page with &#039;== Problem == There are problems with DVD drive model &quot;DVD-RAM UJ862A&quot;. It will have problems at random times. Either when mounting or it will allow you to mount but will ...&#039;</p> <p><b>New page</b></p><div>== Problem ==<br /> There are problems with DVD drive model &quot;DVD-RAM UJ862A&quot;. It will have problems at random times. Either when mounting or it will allow you to mount but will fail when reading data. In dmesg you will get errors like:<br /> <br /> ata2.00: exception Emask 0x2 SAct 0x0 SErr 0x1000400 action 0x6 frozen<br /> <br /> ....<br /> <br /> ata2: hard resetting link<br /> <br /> sr 1:0:0:0: [sr0] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE<br /> <br /> sr 1:0:0:0: [sr0] Sense Key : Illegal Request [current] <br /> <br /> sr 1:0:0:0: [sr0] Add. Sense: Media region code is mismatched to logical unit region<br /> <br /> sr 1:0:0:0: [sr0] CDB: Read(10): 28 00 00 00 03 8e 00 00 10 00<br /> <br /> end_request: I/O error, dev sr0, sector 3640<br /> <br /> Buffer I/O error on device sr0, logical block 455<br /> <br /> Buffer I/O error on device sr0, logical block 456<br /> <br /> Buffer I/O error on device sr0, logical block 457<br /> <br /> <br /> <br /> ----<br /> <br /> == Fix ==<br /> <br /> The way to fix this is to make sure that the region on the dvd drive is correct<br /> {{cmdroot|command}} regionset /dev/sr0<br /> <br /> regionset version 0.1 -- reads/sets region code on DVD drives<br /> <br /> Current Region Code settings:<br /> <br /> RPC Phase: II<br /> <br /> type: NONE<br /> <br /> vendor resets available: 4<br /> <br /> user controlled changes resets available: 5<br /> <br /> drive plays discs from region(s):, mask=0xFF<br /> <br /> <br /> Would you like to change the region setting of your drive? [y/n]:y<br /> <br /> Enter the new region number for your drive [1..8]:1<br /> <br /> New mask: 0xFFFFFFFE, correct? [y/n]:y<br /> <br /> Region code set successfully!<br /> <br /> {{cmdroot|command}}</div>

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