Dd /dev/sr0 Input/output Error
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Dd: Error Reading ‘/dev/cdrom’: Input/output Error
Stack Exchange is a question and answer site for users of Linux, FreeBSD and other Un*x-like operating systems. Join them; it only takes a minute: dd reading dev dvd input output error Sign up Here's how it works: Anybody can ask a question Anybody can answer The best answers are voted up and rise to the top Why can't I copy my DVD with dd? up vote 6 down vote favorite 2 I tried dd copy cd dd, dd_rescue and ddrescue, all failed. I thought these tools bypass the filesystem and make a bitwise copy. dd is fooled, it finishes but just produces a small file and states it's finished. dd_rescuse and ddrescue are complaining about read errors and are intolerably slow. These tools can copy only a few MB in 10 minutes. Why is this happening, why are these tools failing? AnyDVD makes the disc copyable in a second on a Win7 host. It says that the UDF filesystem is
Ddrescue Dvd
patched, curiously, it also says that there are no bad sectors. The whole disc can be copied in 10 minutes. UPDATE: As for the solution, see my similar question on superuser. filesystems backup data-recovery dd dvd share|improve this question edited Feb 28 '12 at 21:07 asked Feb 24 '12 at 11:21 Ali 90141114 add a comment| 4 Answers 4 active oldest votes up vote 10 down vote accepted I think that the simplest answer is that dd, dd_rescue and ddrescue are not designed to defeat copy protection schemes. They make no assumptions about the format of the data and try to maintain the integrity of the whole of the original on disk data. In the case of dd I suspect that it is terminating due to an intentional read error on the disk that is part of the copy protection scheme. It would help to confirm this if you included the commandline output from dd with your question. You may also find some read errors recorded in the dmesg command output. You may get dd to copy more of the file by passing the noerror flag to it on the commandline. However you may find that this just leaves you with corruption in your final image. share|improve this answer answered Feb 24 '12 at 15:00 Richm 2,6141210 Thanks, upvoted. If I bypass the filesystem and do a "bitwise" copy, and replace the read errors with zero bytes, would that still yield a corrupted image? After all I on
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Fedora that do not belong in any other forum. Google™ Search FedoraForum Search Red Hat Bugzilla Search Search Forums Show Threads Show Posts Tag Search Advanced Search Go to Page... Thread Tools http://unix.stackexchange.com/questions/32564/why-cant-i-copy-my-dvd-with-dd Search this Thread Display Modes #1 3rd March 2010, 11:16 PM jonrpick Offline Registered User Join Date: Jun 2008 Posts: 171 Input/output error when trying to copy DVD contents with DD Here's what I'm getting... I even threw some video DVDs at it to make sure it wasn't the disc. Code: [pickens@acer1 Videos]$ dd if=/dev/sr0 of=POTC.iso dd: reading `/dev/sr0': Input/output error 5088+0 records in 5088+0 records out 2605056 http://forums.fedoraforum.org/showthread.php?t=241604 bytes (2.6 MB) copied, 1.67727 s, 1.6 MB/s [pickens@acer1 Videos]$ I am getting the same thing on my laptop running Mandriva, oddly enough. Two different drives, two different computers, two different distros and multiple DVDs. What could be the problem?? __________________ Desktop machine: Zotac MiniITX MB / Pentium Dual Core E2200 (Soon to be Core 2 Duo), 4GB RAM, 640GB SATA, nVidia integrated GPU. Fedora 13, adding Mandriva Powerpack and Puppy soon. Netbook: HP Mini 311: 3GB RAM, 160GB SATA. Nvidia ION LE Graphics. XP SP3 and F13...adding Mandriva soon. My avatar is indicative of my attitude... [SIGPIC][/SIGPIC] jonrpick View Public Profile Find all posts by jonrpick #2 3rd March 2010, 11:34 PM Nokia Offline Registered User Join Date: Aug 2006 Location: /dev/realm/{Abba,Carpenters,...stage} Posts: 3,285 DRM protected disc ? __________________ For safer browsing, use OpenDNS nameservers 208.67.222.222 and 208.67.220.220 SELinux User Guide AutoPager Nokia View Public Profile Find all posts by Nokia #3 3rd March 2010, 11:42 PM jonrpick Offline Registered User Join Date: Jun 2008 Posts: 171 Quote: Originally Posted by Nokia DRM protected disc ? I'd say so, yeah... I've never had a problem doing this in the past. But VLC won't even play it, so...doesn't it usually play ANYTHING? Also, I
Registered: 2009-07-29 Posts: 6 /dev/sr0: Input/output error I'm sorry if this has already been posted, but I haven't seen anything that might work to fix this. I'm not sure which update caused https://bbs.archlinux.org/viewtopic.php?id=89926 this problem, but I am seeing this error on two different Arch boxes. It's been happening for a few weeks and I had hoped the recent update would fix this problem.[root@sleepingHost http://www.linuxquestions.org/questions/linux-software-2/dd-reading-%60-dev-cdrom'-input-output-error-228896/page3.html ~]# dd if=/dev/sr0 of=/home/chadley/Desktop/a.iso dd: reading `/dev/sr0': Input/output error 0+0 records in 0+0 records out 0 bytes (0 B) copied, 0.0407595 s, 0.0 kB/sI have seen instances where it will output error work if I try to do an md5 sum on each file in the CD, the first few break, but the rest work. I'm not sure what this is related to. dmesg prints out some very interesting results (I think), which I can post here if requested.Thanks in advance.PS: I'll give you the relevant part of dmesg anyway...wlan0: RX AssocResp from dvd to iso 00:19:e4:b1:a5:b9 (capab=0x421 status=0 aid=1) wlan0: associated ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready cfg80211: Calling CRDA for country: US wlan0: no IPv6 routers present CE: hpet increasing min_delta_ns to 15000 nsec sr 1:0:0:0: [sr0] Result: hostbyte=0x00 driverbyte=0x08 sr 1:0:0:0: [sr0] Sense Key : 0x5 [current] sr 1:0:0:0: [sr0] ASC=0x64 ASCQ=0x0 sr 1:0:0:0: [sr0] CDB: cdb[0]=0x28: 28 00 00 00 00 00 00 00 40 00 end_request: I/O error, dev sr0, sector 0 Buffer I/O error on device sr0, logical block 0 Buffer I/O error on device sr0, logical block 1 Buffer I/O error on device sr0, logical block 2 Buffer I/O error on device sr0, logical block 3 Buffer I/O error on device sr0, logical block 4 Buffer I/O error on device sr0, logical block 5 Buffer I/O error on device sr0, logical block 6 Buffer I/O error on device sr0, logical block 7 Buffer I/O error on device sr0, logical block 8 sr 1:0:0:0: [sr0] Result: hostbyte=0x00 driverbyte=0x08 sr 1:0:0:0: [sr0] Sense Key : 0x5 [current] sr 1:0:0:0: [sr0] ASC=0x64 ASCQ=0x0 sr 1:0:0:0: [sr0] CDB: cdb[0]=0x28: 28 00 00 00 00 00 00
Wiki Search Tutorials/Articles Search HCL Search Reviews Search ISOs Go to Page... LinuxQuestions.org > Forums > Linux Forums > Linux - Software dd: reading `/dev/cdrom': Input/output error User Name Remember Me? Password Linux - Software This forum is for Software issues. Having a problem installing a new program? Want to know which application is best for the job? Post your question in this forum. Notices Welcome to LinuxQuestions.org, a friendly and active Linux Community. You are currently viewing LQ as a guest. By joining our community you will have the ability to post topics, receive our newsletter, use the advanced search, subscribe to threads and access many other special features. Registration is quick, simple and absolutely free. Join our community today! Note that registered members see fewer ads, and ContentLink is completely disabled once you log in. Are you new to LinuxQuestions.org? Visit the following links: Site Howto | Site FAQ | Sitemap | Register Now If you have any problems with the registration process or your account login, please contact us. If you need to reset your password, click here. Having a problem logging in? Please visit this page to clear all LQ-related cookies. Introduction to Linux - A Hands on Guide This guide was created as an overview of the Linux Operating System, geared toward new users as an exploration tour and getting started guide, with exercises at the end of each chapter. For more advanced trainees it can be a desktop reference, and a collection of the base knowledge needed to proceed with system and network administration. This book contains many real life examples derived from the author's experience as a Linux system and network administrator, trainer and consultant. They hope these examples will help you to get a better understanding of the Linux system and that you feel encouraged to try out things on your own. Click Here to receive this Complete Guide absolutely free. Page 3 of 4 < 12 3 4 > Search this Thread 10-02-2004, 04:20 PM #31 kilgoretrout Senior Member Registered: Oct 2003 Posts: 2,452 Rep: They match if you use that rawrite script I gave in my original post. I've done it many times. kilgoretrout View Public Profile View LQ Blog View Review Entries View HCL Entries Find More Posts by kilgoretrout 10-02-2004, 06:40 PM #32 mritch Member Registered: Nov 2003 Location: austria Distribution