Dd /dev/disk2 Input/output Error
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"dd: /dev/rdisk3: Input/output Error"
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. dd reported an error, and I dd writing to input/output error 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 (1) Please show the command(s) that you typed to get this
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Twitter Useful Links Distrowatch Bugs: Ubuntu PPAs: Ubuntu Web Upd8: Ubuntu OMG! Ubuntu Ubuntu Insights Planet dd fails with input/output error Ubuntu Activity Page Please read before SSO login Advanced Search Forum The Ubuntu Forum Community Ubuntu Official Flavours Support General Help [SOLVED] dd: ubuntu input output error external hard drive reading `/dev/sda1': Input/output error 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 5 of 5 Thread: dd: http://unix.stackexchange.com/questions/223444/interpreting-dd-input-output-error 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 all, I was trying to copy from a hard drive, to an image file using :- Code: sudo dd if=/dev/sda1 https://ubuntuforums.org/showthread.php?t=1666299 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 Message First Cup of Ubuntu Join Date Jan 2011 Beans 6 Re: dd: reading `/dev/sda1': Input/output error I wouldn't recommend imaging an OS from a HDD with unrepaired/unflagged bad sectors on it as the corrupted data will be imaged as well. While
#1 2013-06-15 11:24:02 epaaj Member Registered: 2011-08-10 Posts: 5 [SOLVED] Disk crash - Input/output error - Error reading blocks Hi guys,I need some help recovering data from a disk that I believe either is completely broken already https://bbs.archlinux.org/viewtopic.php?id=165237 or it will soon be.It started when trying to browse a specific folder. When https://nbalkota.wordpress.com/2013/01/13/recovering-a-non-readable-disk-on-mac-os-x/ i ran "ls" in it I got "Input/output error" for all folders in it. I could not list anything within the folder.I unmounted the hard drive immediately.I noticed several rows with these in dmesg:"[607277.950354] Buffer I/O error on device sdb1, logical block 23320""dd if=/dev/sdb1 of=/mnt/backup/location" gives me about 44kB and then it thinks it is output error done. The drive is 500GB and almost full. Only one partition.Disk /dev/sdb: 500.1 GB, 500107862016 bytes, 976773168 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk label type: dos Disk identifier: 0x000621d7 Device Boot Start End Blocks Id System /dev/sdb1 * 63 976768064 488384001 83 Linux"sudo e2fsck -f /dev/sdb1" dd input/output error gives:e2fsck 1.42.7 (21-Jan-2013) e2fsck: Attempt to read block from filesystem resulted in short read while trying to open /dev/sdb1 Could this be a zero-length partition?Ran "sudo dumpe2fs /dev/sdb1 | grep -i superblock" to find the superblock locations:Primary superblock at 0, Group descriptors at 1-30 Backup superblock at 32768, Group descriptors at 32769-32798 Backup superblock at 98304, Group descriptors at 98305-98334 Backup superblock at 163840, Group descriptors at 163841-163870 Backup superblock at 229376, Group descriptors at 229377-229406 Backup superblock at 294912, Group descriptors at 294913-294942 Backup superblock at 819200, Group descriptors at 819201-819230 Backup superblock at 884736, Group descriptors at 884737-884766 Backup superblock at 1605632, Group descriptors at 1605633-1605662 Backup superblock at 2654208, Group descriptors at 2654209-2654238 Backup superblock at 4096000, Group descriptors at 4096001-4096030 Backup superblock at 7962624, Group descriptors at 7962625-7962654 Backup superblock at 11239424, Group descriptors at 11239425-11239454 Backup superblock at 20480000, Group descriptors at 20480001-20480030 Backup superblock at 23887872, Group descriptors at 23887873-23887902 Backup superblock at 71663616, Group descriptors at 71663617-71663646 Backup superblock at 78675968, Group descriptors at 78675969-78675998 Backup superblock at 102400000, Group descriptors at 102400001-102400030with "e2fsck -f -b 32768 /dev/sda3" if got further but after a while a lot of these showed up:(when I started to get these erro
public IPaddress Recovering a non-readable disk on Mac OSX 2013/01/13 nbalkota Mac 84 Comments Today, as I intended to perform my regular Time Machine backup, I got welcomed by a very scary message when I connected my external hard disk to my MacBook. The disk you inserted you inserted was not readable by this computer. Now, I take pride in having never ever lost any data on my Macs since 1998, so I was concerned this might be the end of my record… In Disk Utility the drive device was listed, but no volume could be mounted due to a corrupted partition map. Don't ask me how it got corrupted in the first place. I would guess the disk never liked incident when it got unplugged without using the eject command… Anyway, salvation can come at no cost by using the Terminal in Mac OS X (assuming you have administrative rights): Connect your external disk Start terminal and use the 3 commands in bold red below If the last command was successful, disconnect and reconnect your disk, which should now be OK IronMan:~ nbalkota$ diskutil list /dev/disk0 #: TYPE NAME SIZE IDENTIFIER 0: GUID_partition_scheme *250.1 GB disk0 1: EFI 209.7 MB disk0s1 2: Apple_HFS IronMan 249.2 GB disk0s2 3: Apple_Boot Recovery HD 650.0 MB disk0s3 /dev/disk1 #: TYPE NAME SIZE IDENTIFIER 0: FDisk_partition_scheme *1.0 TB disk1 1: 0xEE 1.0 TB disk1s1 IronMan:~ nbalkota$ sudo gpt recover /dev/disk1 WARNING: Improper use of the sudo command could lead to data loss or the deletion of important system files. Please double-check your typing when using sudo. Type "man sudo" for more information. To proceed, enter your password, or type Ctrl-C to abort. Password: gpt recover: /dev/disk1: recovered primary GPT table from secondary gpt recover: /dev/disk1: recovered primary GPT header from secondary IronMan:~ nbalkota$ diskutil eject /dev/disk1 Disk /dev/disk1 ejected An alternative to the second command (gpt) would be diskutil repairDisk /dev/disk1 Note than the manpage for gpt does not cover the recover option whereas the manpage for diskutil does cover the repairDisk option. Share this:TwitterFacebookLike this:Like Loading... Related 84 Comments (+add yours?) sarah Jan 31, 2013 @ 07:09:04 Hi! I did the "diskutil list" command. and then i did the "sudo gpt recover /dev/disk1" command. then it asks for my password. does it mean my computer password? or is the password the third command "diskutil eject /dev/disk1"? either way once i get to that step it won't let me type in any password. i type and nothing appears. the cursor just disappears…? Reply nbalkota Jan 31, 2013 @ 12:14:00 Sarah, The sudo command stands for Super