Cp Bad Copy To Read I/o Error
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Cp Cannot Stat Input/output Error
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Mv Failed To Extend Input/output Error
Meta Discuss the workings and policies of this site About Us input output error android Learn more about Stack Overflow the company Business Learn more about hiring developers or posting ads with us error creating directory input output error Ask Ubuntu Questions Tags Users Badges Unanswered Ask Question _ Ask Ubuntu is a question and answer site for Ubuntu users and developers. Join them; it only takes a https://community.hpe.com/t5/System-Administration/can-not-copy-file/td-p/3137951 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 cp fails to copy with errors “cp: error reading 'file': Input/output error” and "cp: failed to extend 'file': Input/output error up vote 2 down vote favorite I'm a user of Oracle Virtualbox http://askubuntu.com/questions/509695/cp-fails-to-copy-with-errors-cp-error-reading-file-input-output-error-and on Ubuntu. And I used to copy vdi files as a kind of backup. Previously I did this (copying vdi file and then copying it back) many times without any problem. But today I experienced this error VirtualBox VMs/win_7$ cp ../../Bkps/win_7.vdi . cp: error reading ‘../../Bkps/win_7.vdi’: Input/output error cp: failed to extend ‘./win_7.vdi’: Input/output error I googled for this a little but from the advices on similar problems I undersood nothing unfortunately. Could anyone suggest how to solve this, please? The output from the dmesg is, (and I understand nothing from it) [ 2347.982876] ata1.00: exception Emask 0x0 SAct 0x1900406f SErr 0x0 action 0x0 [ 2347.982887] ata1.00: irq_stat 0x40000008 [ 2347.982895] ata1.00: failed command: READ FPDMA QUEUED [ 2347.982908] ata1.00: cmd 60/08:70:d0:da:f4/00:00:2e:00:00/40 tag 14 ncq 4096 in [ 2347.982908] res 41/40:08:d0:da:f4/00:00:2e:00:00/00 Emask 0x409 (media error)
a crash of the video application. How to Detect an I/O Error It's easy to verify whether a file has I/O problems: Just try to copy http://aeroquartet.com/wordpress/2012/06/06/how-to-copy-a-file-with-io-errors/ it to a different location. If the operating system reports an error (Finder error -36 for Mac) then we have an I/O error. I/O error means that the storage media (card, disk, …) cannot be read at a certain location. Think of it as a scratch on a DVD or a "bad sector" on a card or a disk. The bad news is that this output error "rough spot" is in the middle of your file. If the "rough spot" is big (a big scratch on your DVD, hundreds or thousands of "bad sectors" on your disk), then the chances of recovery will be low. But in any case, the first step is to generate a clean, error-free copy of the damaged file. Since some segments of the file are not failed to extend readable, the best that can be done is to skip them. We will explain later how to do this. With a clean copy of the file, parts of the original data are missing, but we no longer have I/O errors causing our diagnostics and repair tools to choke and crash. How to Copy a File with I/O Errors To salvage all readable data, we will use a fault-tolerant copy utility called dd. dd stands for "disk duplication". This is a command-line utility bundled with Mac OS X. A free version for Windows is also available for download. Be extremely careful, even if you are familiar with command line, because dd can cause unrecoverable damage to your data if you don't specify correctly input and output. You have been warned. The arguments of dd are straight-forward: if=path_of_file_with_IO_errors specifies input path of=path_of_clean_copy_to_create specifies output path conv=noerror,sync tells dd to be fault-tolerant Your output path should not be on the same disk as the damaged file. Actually, you shouldn't continue using the card or disk with I/O errors, because it's likely to cause more problems in the future. After recovery the data, you should sc