Cat /dev/scd0 Input/output Error
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Dd: Error Reading ‘/dev/cdrom’: Input/output Error
Web Upd8: Ubuntu OMG! Ubuntu Ubuntu Insights Planet Ubuntu Activity Page Please read before SSO login Advanced Search Forum The Ubuntu Forum Community Ubuntu Official Flavours Support Hardware [ubuntu] Input/output error when reading from CD Having an Issue With Posting ? Do you want to help us debug the posting issues ? < is the place to report it, thanks ! Results 1 to 6 of 6 Thread: Input/output error when reading from CD Thread Tools Show Printable Version Subscribe to this Thread… Display Linear Mode Switch to Hybrid Mode Switch to Threaded Mode January 26th, 2010 #1 ThomasTC View Profile View Forum Posts Private Message First Cup of Ubuntu Join Date Jan 2008 Beans 8 Input/output error when reading from CD I'm trying to convert an audio CD to an ISO image, but all my attempts run into a brick wall. I'm beginning to suspect that this might be a kernel bug. The following happens on an Intel i7 system, running an up-to-date Ubuntu Karmic, Desktop Edition, 64-bits. My kernel is 2.6.31-16-generic. My DVD-RW drive is: Code: $ sudo lshw -class disk *-cdrom description: DVD-RAM writer product: DVD RW AD-7170A vendor: Optiarc physical id: 0.0.0 bus info: scsi@6:0.0.0 logical name: /dev/cdrom logical name: /dev/cdrw logical name: /dev/dvd logical name: /dev/dvdrw logical name: /dev/scd0 logical name: /dev/sr0 version: 1.O3 serial: [Optiarc DVD RW AD-7170A 1.O3 Jul14,2006 BT-LIG capabilities: removable audio cd-r cd-rw dvd dvd-r dvd-ram configuration: ansiversion=5 status=ready *-medium physical id: 0 logical name: /dev/cdrom First attempt: Code: $ dd if=/dev/sr0 of=image.iso dd: reading `/dev/sr0': Input/output error 0+0 records in 0+0 records out 0 bytes (0 B) copied, 0.127185 s, 0.0 kB/s $ dmesg ... [ 276.480290] sr 6:0:0:0: [sr0] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE [ 276.480295] sr 6:0:0:0: [sr0] Sense Key : Illegal Request [current] [ 276.480299] sr 6:0:0:0: [sr0] Add. Sense: Illegal mode for this track [ 276.480305] end_request: I/O error, dev sr0, sector 0 [ 276.480309] __ratelimit: 78 callbacks suppressed [ 276.480311] Buffer I/O error on device sr0, logical block 0 [ 276.480314] Buffer I/O err
icrave Member Registered: 2006-04-11 Posts: 193 [SOLVED] md5sum never works Hi,I'm trying to verify a cd with md5sum, but it doesn't work. I don't know why, but after many tries it seems to resists...The steps that i follow are:# Create .iso of files to burn: mkisofs -pad -J -r -o imagen.iso /directory/to/burn/ # Create md5 checksum: md5sum imagen.iso > imagen.iso.md5 # Burn iso image to CD: cdrecord -v -eject dev=/dev/scd0 -data imagen.iso # With the burned cd and isoinfo, i get volume size and block size: volume size = isoinfo -d -i /dev/scd0 | grep "^Volume size is:" | cut -d " " -f 4 block size = isoinfo -d -i /dev/scd0 | grep "^Logical block size is:" | cut -d " " https://ubuntuforums.org/showthread.php?t=1391249 -f 5 # Create iso image from CD: dd if=/dev/scd0 of=imagen.iso bs=(block size) co=(volume size) # Check md5sum: md5sum -c imagen.iso.md5Someone knows what I'm doing wrong? Last edited by icrave (2008-05-06 10:09:21) Offline #2 2008-05-05 19:58:29 ghostHack Member From: Bristol UK Registered: 2008-02-29 Posts: 261 Re: [SOLVED] md5sum never works When getting the md5sum of a burned CD I have found that I have to point md5sum at the device entry, e.gmd5sum /dev/cdromI don't know if that https://bbs.archlinux.org/viewtopic.php?id=48173 is the 'correct' method but its the only way I found of getting an md5sum from a CD. Offline #3 2008-05-05 21:28:58 icrave Member Registered: 2006-04-11 Posts: 193 Re: [SOLVED] md5sum never works Your command to generate md5 directly from /dev/cdrom doesn't work (input/output error).Now, I'm trying another method to create image from cd:dd if=/dev/cdrom | head -c 188160000 | md5sumWhere 188160000 is the exact size on bytes of image (used stat to get it)... but off course, It doesn't work . Offline #4 2008-05-05 21:35:07 ghostHack Member From: Bristol UK Registered: 2008-02-29 Posts: 261 Re: [SOLVED] md5sum never works hmm, /dev/cdrom is actually a link to /dev/sr0 on my system, try to find out the proper device that your cdrom maps to and use that instead Offline #5 2008-05-05 21:46:24 icrave Member Registered: 2006-04-11 Posts: 193 Re: [SOLVED] md5sum never works I think that the problem isn't /dev/cdrom, because i can do "cat /dev/cdrom | md5sum" (yes, the md5sum are incorrect).Using the original dev (in my case /dev/sr0, too), i have the same error. Offline #6 2008-05-05 21:51:58 _Marco_ Member Registered: 2008-04-21 Posts: 242 Re: [SOLVED] md5sum never works but are you sure that the cdrom md5sum should be equal to the .iso one?because to close the session the cd recorder writes some (I'm not a technician so I don't know which) bits...I think it is no
Common F23 Bugs Common F24 Bugs Communicate with Fedora The Documents Bug Reports Fedora Update System (Bodhi) Fedora Build System (Koji) Official Spins FedoraForum.org > Fedora 23/24 > Using Fedora Input/output http://forums.fedoraforum.org/showthread.php?t=241604 error when trying to copy DVD contents with DD FedoraForum Search User https://sourceforge.net/p/mondo/mailman/message/13475984/ Name Remember Me? Password Forgot Password? Join Us! Register All Albums FAQ Today's Posts Search Using Fedora General support for current versions. Ask questions about 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 output error to Page... Thread Tools 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 cat /dev/scd0 input/output error 5088+0 records in 5088+0 records out 2605056 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 th
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