Inputoutput Error Dd
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Dd Input/output Error Dvd
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"dd: /dev/rdisk3: Input/output Error"
Join them; 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
Dd Conv=noerror
vote favorite I tried to copy /dev/Storage/Storage (an LV under LVM) to an image file using a dd | pv | dd pipeline. 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 dd writing to input/output error 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 47.5k1462125 asked Aug 16 '15 at 0:08 Scoopta 177114 (1) Please show the command(s) that you typed to get this output. (2) Do you know how big you disk is? Please do not respond in comments; edit your question to provide the requested information. –Scott Aug 16 '15 at 0:36 One obvious question is whether your disk has 1627672400 sectors or not. Try blockdev --getsz /dev/whatever. If you copied the right number of sectors, then you are probably okay. –user3188445 Aug 16 '15 at 0:39 @user3188445 taking that as a no it didn't finish because it's 1953513472 sectors. –Scoopta Aug 16 '15 at 1:26 @Scott I updated my question but it's looking like it didn't fini
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 input output error hard drive mac Stack Overflow the company Business Learn more about hiring developers or posting ads with dd skip errors us Unix & Linux Questions Tags Users Badges Unanswered Ask Question _ Unix & Linux Stack Exchange is a question and answer ubuntu input output error external hard drive site for users of Linux, FreeBSD and other Un*x-like operating systems. Join them; it only takes a minute: Sign up Here's how it works: Anybody can ask a question Anybody can answer The best answers are http://unix.stackexchange.com/questions/223444/interpreting-dd-input-output-error voted up and rise to the top The dd command fails with an “Input/output” error while burning a USB stick up vote 1 down vote favorite This question is somewhat related to the previous question I asked regarding the dd command, The dd command isn't appear to accomplish anything. I'm trying to burn the Ubuntu operating system onto a USB flash drive, so that I can boot from it. Currently I'm getting http://unix.stackexchange.com/questions/235275/the-dd-command-fails-with-an-input-output-error-while-burning-a-usb-stick this output like this when I attempt the burn: dd: reading `ubuntu-14.04.3-desktop-i386.iso': Input/output error 1280+0 records in 1280+0 records out 655360 bytes (655 kB) copied, 0.04214 s, xx.x MB/s For reference, I'm running the following command: sudo dd if=ubuntu-14.04.3-desktop-i386.iso of=/dev/sda1 To clarify: I know that /dev/sda1 is my USB stick. I'm running this on a Raspberry Pi, running the Debian distribution. usb dd burning share|improve this question asked Oct 10 '15 at 20:50 Ethan Bierlein 1356 Can you read the SD card? That is sudo dd if=/dev/sda1 of=/dev/null. –Brian Oct 10 '15 at 22:04 is the iso located on /dev/sda1? –mikeserv Oct 10 '15 at 22:06 @Brian Yes, I can read the USB drive. –Ethan Bierlein Oct 10 '15 at 22:07 @mikeserv Yes it is. When I run the lsblk it tells me that it's the case. –Ethan Bierlein Oct 10 '15 at 22:08 /dev/sda1 is a partition, not a drive. Or at least, it should be. What does sudo fdisk -l /dev/sda print? –The Sidhekin Oct 10 '15 at 22:11 | show 3 more comments 1 Answer 1 active oldest votes up vote 2 down vote Well, it seems that I really don't understand a lot of basic concepts about this stuff. Turns
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 http://stackoverflow.com/questions/19470160/cant-back-up-sd-card-with-dd-complains-input-output-error Overflow the company Business Learn more about hiring developers or posting ads with us http://superuser.com/questions/35349/dd-clone-hard-drive-input-output-error-though-chkdsk-says-ok Stack Overflow Questions Jobs Documentation 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 output error I have successfully backed up my SD card 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) dd writing to runs fine (ish) and Disk Utility claims that the sd card is 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 6,1091165126 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 47.7k85391 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 H
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 Learn more about hiring developers or posting ads with us Super User Questions Tags Users Badges Unanswered Ask Question _ Super User is a question and answer site for computer enthusiasts and power users. Join them; 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 dd clone hard drive: Input/Output Error though “chkdsk” says OK up vote 3 down vote favorite 2 I've used dd to clone hard drives before using 'dd' and a live cd, but have run into a problem. The issue: dd fails with an "Input/Output Error" on /dev/sda3 , even though windows "check disk" (chkdsk) says it's ok. Context: Trying to replace my laptop hard drive w/ a faster one of the same size Laptop has NTFS on a 320gb hard drive Booting into knoppix Knoppix recognizes 'original' drive(/dev/sda) I am using a usb connection for ‘new' drive (irrelevant, but just an fyi) Knoppix recognizes the usb drive as /dev/sdb Using dd, as follows: dd if=/dev/sda of=/dev/sdb `dd gives the I/O error above at 82Gb (out of 320Gb) I then tried checking each partition as follows and found it failed on /dev/sda3: dd if=/dev/sda1 of=/dev/null dd if=/dev/sda2 of=/dev/null dd if=/dev/sda3 of=/dev/null I have ran windows xp chkdsk on the offending drive in both "find only" and "find and fix" mode and it reports no errors Question How can I find and fix the error on my original hard drive partition (i.e. /dev/sda3) so that dd reads it successfully? ntfs clone dd share|improve this question edited Jan 13 '14 at 19:52 Thor 3,0251727 asked Sep 3 '09 at 22:55 user31575 1262210 migrated from stackoverflow.com Sep 3 '09 at 23:00 This question came from our site for professional and enthusiast programmers. add a comment| 3 Answers 3 active oldest votes up vote 3 down vote Use ddrescue for that, it's able to read damaged disks. And chkdsk probably won't find the i