Dd /dev/ Input/output Error
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Input Output Error During Read On Dev Sda
it only takes a minute: 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 Interpreting dd Input/Output error up vote 4 down vote favorite I tried to copy /dev/Storage/Storage (an LV under LVM) to an image file using a dd | pv | dd pipeline. input output error during read on dev sda ubuntu install dd reported an error, and I want to know whether dd finished copying my disk or stopped due to the error. I'm not sure since it gave me two different outputs: one with an error at the top and one without. I'd take a guess and say it didn't because between the two there's only an extra 0.1 seconds and no extra data, but I'm not sure if it did or not. /dev/Storage/Storage is a 1 TB disk (terabyte = 1012 = 10004) or 931.51 GiB (gibibyte = 230 = 10243) or 1953513472 sectors. The filesystem on the disk is messed up and doesn't work properly. $ sudo dd if=/dev/Storage/Storage | pv | dd of=Storage.img dd: error reading ‘/dev/Storage/Storage’: Input/output error ] 1627672400+0 records ins] [ <=> ] 1627672400+0 records out 833368268800 bytes (833 GB) copied, 75181 s, 11.1 MB/s 776GB 20:53:01 [10.6MB/s] [ <=> ] 1627672400+0 records in 1627672400+0 records out 833368268800 bytes (833 GB) copied, 75181.1 s, 11.1 MB/s linux dd share|improve this question edited Apr 27 at 15:26 Anthon 47.4k1462125 asked Aug 16 '15 at 0:08 Scoopta 167114
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Ubuntu Web Upd8: Ubuntu OMG! Ubuntu Ubuntu Insights Planet Ubuntu Activity Page Please read before SSO login Advanced Search Forum The dd writing to ‘/dev/sdb’ input/output error Ubuntu Forum Community Ubuntu Official Flavours Support General Help [SOLVED] dd: reading `/dev/sda1': Input/output error Having an Issue With Posting ? Do you want to help us debug the posting issues ? < is the http://unix.stackexchange.com/questions/223444/interpreting-dd-input-output-error place to report it, thanks ! Results 1 to 5 of 5 Thread: dd: reading `/dev/sda1': Input/output error Thread Tools Show Printable Version Subscribe to this Thread… Display Linear Mode Switch to Hybrid Mode Switch to Threaded Mode January 13th, 2011 #1 ibod View Profile View Forum Posts Private Message A Carafe of Ubuntu Join Date Sep 2010 Location Kent UK Beans 92 DistroUbuntu dd: reading `/dev/sda1': Input/output error Hi https://ubuntuforums.org/showthread.php?t=1666299 all, I was trying to copy from a hard drive, to an image file using :- Code: sudo dd if=/dev/sda1 of=/media/Iomega\ HDD/backup/pc130111.img Some info about the hard drive. The hard drive I am trying to copy is formatted ntfs and has XP on it. It is about 6 years old and is having problems. When booted from a 10.4 live CD. Most of the time the hard drive reports that it is not a S.M.A.R.T. capable drive. Once, it was, able to read the SMART data and reported OK except 3 bad sectors. From the above and especially the "smart / no smart" I am assuming that there is likely a controller problem on the drive as well as the bad sectors. dd exits with the following error :- Code: ubuntu@ubuntu:~$ sudo dd if=/dev/sda1 of=/media/Iomega\ HDD/backup/pc130111.img dd: reading `/dev/sda1': Input/output error 6406224+0 records in 6406224+0 records out 3279986688 bytes (3.3 GB) copied, 432.584 s, 7.6 MB/s ubuntu@ubuntu:~$ The windows system still runs, but its time for an .img and a new drive, before it dies. What do I need to do here to get a usable copy of this drive ? Ibod. Adv Reply January 13th, 2011 #2 GNU-Cody View Profile View Forum Posts Private
here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more about Stack Overflow the company Business http://stackoverflow.com/questions/19470160/cant-back-up-sd-card-with-dd-complains-input-output-error Learn more about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation https://www.raspberrypi.org/forums/viewtopic.php?f=28&t=20869 Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up Can't back up SD card with dd, complains “Input/Output Error” up vote 4 down vote favorite I have successfully backed up my SD card output error twice by issuing the following command sudo dd if=/dev/sdb of=/home/user/Documents/raspi/images/raspi1.v2.iso bs=1M However, now it is giving me the following error: dd: reading `/dev/sdb': Input/output error 3027+1 records in 3027+1 records out 3174977536 bytes (3.2 GB) copied, 200.723 s, 15.8 MB/s Looking around the net, this seems to indicate a corrupted SD card. However, my raspi (which I runs off of this SD card) runs fine (ish) and Disk Utility claims that the sd card is input output error not corrupted. Is there another way I can find out why dd is complaining, if the card is corrupted, and if so, how to fix the SD card. UPDATE: I gave up trying to run dd on the SD card, but I did figure out what was corrupting my SD card, it was the updating of the Raspi firmware as specified on this site backup dd flash-memory share|improve this question edited Oct 21 '13 at 22:34 asked Oct 19 '13 at 19:28 puk 6,0941065126 add a comment| 1 Answer 1 active oldest votes up vote 2 down vote It is possible that your raspi simply does not hit badblock on your SD card, and that's why it appears to work fine. You can dd image and ignore bad blocks by adding conv=noerror parameter. This will replace bad blocks with zeros, and if you dd that image back to another same-size card, it should work the same. share|improve this answer answered Oct 19 '13 at 19:34 mvp 47.3k85191 1 I already tried that and it still does not work. It gives more or less the same error, but many more times –puk Oct 19 '13 at 19:42 Hmm. Looks like it is time to buy new SD card. You can try to force remapping bad sectors by sudo dd if=/dev/zero of=/dev
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