Ext4-fs Dm-0 Previous I/o Error To Superblock Detected
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Subject: fsck failing to notice that the block device was pulled out from under it? Date: Mon, 25 May 2015 23:59:44 +0200 Hello, tl;dr: it seems like fsck fails
Unable To Read Itable Block
to notice when the block device disappears from under it. I have the buffer i/o error on device dm-0 following setup: * external USB disk * a partition with LUKS in it * ext4 filesystem inside the LUKS block device While doing backups to it I noticed that after some time backups would fail with an error (failed to write, ). In the following log I'm attaching the disk, enabling LUKS and mounting the disk and then starting the backup, which will fail after a while: May 25 11:39:18 hier kernel: [76241.727367] usb 4-1.1: new high-speed USB device number 6 using ehci-pci May 25 11:39:19 hier kernel: [76241.881892] usb 4-1.1: New USB device found, idVendor=0bc2, idProduct=3320 May 25 11:39:19 hier kernel: [76241.881902] usb 4-1.1: New USB device strings: Mfr=2, Product=3, SerialNumber=1 May 25 11:39:19 hier kernel: [76241.881907] usb 4-1.1: Product: Expansion Desk May 25 11:39:19 hier kernel: [76241.881911] usb 4-1.1: Manufacturer: Seagate May 25 11:39:19 hier kernel: [76241.881915] usb 4-1.1: SerialNumber: NA4JDN4N May 25 11:39:19 hier kernel: [76241.882652] usb-storage 4-1.1:1.0: USB Mass Storage device detected May 25 11:39:19 hier kernel: [76241.883007] scsi7 : usb-storage 4-1.1:1.0 May 25 11:39:20 hier kernel: [76242.907527] usb 4-1.1: USB disconnect, device number 6 May 25 11:39:30 hier kernel: [76252.987833] usb 4-1.1: new high-speed USB device number 7 using ehci-pci May 25 11:39:30 hier kernel: [76253.142659] usb 4-1.1: New USB device found, idVendor=0bc2, idProduct=3320 May 25 11:39:30 hier kernel: [76253.142669] usb 4-1.1: New USB device strings: Mfr=2, Product=3, SerialNumber=1 May 25 11:39:30 hier kernel: [76253.142674] usb 4-1.1: Product: Expansion Desk May 25 11:39:30 hier kernel: [76253.142678] usb 4-1.1: Manufacturer: Seagate May 25 11:39:30 hier kernel: [76253.142681] usb 4-1.1: SerialNumber: NA4JDN4N May 25 11:39:30 hier kernel: [76253.143465] usb-storage 4-1.1:1.0: USB Mass Storage device detected May 25 11:39:30 hier kernel: [76253.144285] scsi8 : usb-storage 4-1.1:1.0 May 25 11:39:31 hier kernel: [76254.144816] scsi 8:0:0:0: Direct-Access Seagate Expansion Desk 070B PQ: 0 ANSI: 6 May 25 11:39:31 hier kernel: [76254.145528] sd 8:0:0:0: Attached scsi generic sg1 type 0 May 25 11:39:31 hier
by: Jordi Mallach
Get Kubuntu Get Xubuntu Get Lubuntu Get UbuntuStudio Get Mythbuntu Get Edubuntu Get Ubuntu-GNOME Get UbuntuKylin Ubuntu Code of Conduct Ubuntu Wiki Community Wiki Other Support Launchpad Answers Ubuntu IRC Support AskUbuntu https://ubuntuforums.org/showthread.php?t=2122438 Official Documentation User Documentation Social Media Facebook Twitter Useful Links Distrowatch Bugs: Ubuntu http://www.linuxquestions.org/questions/red-hat-31/intermittent-read-only-filesystem-and-ata-errors-4175494574/ PPAs: Ubuntu 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 General Help [ubuntu] EXT4/fd (sda1): previous I/O error to superblock detected during boot Having an Issue With Posting ? Do you want to help us debug i/o error the posting issues ? < is the place to report it, thanks ! Results 1 to 2 of 2 Thread: EXT4/fd (sda1): previous I/O error to superblock detected during boot Thread Tools Show Printable Version Subscribe to this Thread… Display Linear Mode Switch to Hybrid Mode Switch to Threaded Mode March 5th, 2013 #1 thom_ View Profile View Forum Posts Private Message Visit Homepage First Cup of Ubuntu Join ext4-fs dm-0 previous Date Feb 2009 Location Indonesia Beans 6 DistroUbuntu 9.04 Jaunty Jackalope EXT4/fd (sda1): previous I/O error to superblock detected during boot Hello, I am using Ubuntu 11.10 32 bit. Yesterday, my computer had some line error during boot-time, showed EXT4/fd (sda1): previous I/O error to superblock detected (screenshoot : http://i.imgur.com/TMow5UU.jpg). On this condition, my compie still could reached Desktop, but then, my Desktop showed a dialog window with unreadable-character, (screenshot : http://i.imgur.com/YmljPwk.jpg). After that, it wouldn't show the Unity and some shortcut folders on Desktop became unknown-file-like (screenshot : http://i.imgur.com/OJJZvC2.jpg). Could any body tell me what is this and how could I get rid of it? Adv Reply March 5th, 2013 #2 oldfred View Profile View Forum Posts Private Message Super Master Roaster Join Date Jun 2009 Location SW Forida BeansHidden! DistroUbuntu 16.04 Xenial Xerus Re: EXT4/fd (sda1): previous I/O error to superblock detected during boot I might first try fsck to see if that repairs issues with partition. #From liveCD so everything is unmounted,swap off if necessary, change example shown with partition sda1 to your partition(s) #e2fsck is used to check the ext2/ext3/ext4 family of file systems. -p trys fixes where response not required sudo e2fsck -C0 -p -f -v /dev/sda1 #if error
Search Tutorials/Articles Search HCL Search Reviews Search ISOs Go to Page... LinuxQuestions.org > Forums > Linux Forums > Linux - Distributions > Red Hat Intermittent read-only filesystem and ata errors User Name Remember Me? Password Red Hat This forum is for the discussion of Red Hat Linux. Notices Welcome to LinuxQuestions.org, a friendly and active Linux Community. You are currently viewing LQ as a guest. By joining our community you will have the ability to post topics, receive our newsletter, use the advanced search, subscribe to threads and access many other special features. Registration is quick, simple and absolutely free. Join our community today! Note that registered members see fewer ads, and ContentLink is completely disabled once you log in. Are you new to LinuxQuestions.org? Visit the following links: Site Howto | Site FAQ | Sitemap | Register Now If you have any problems with the registration process or your account login, please contact us. If you need to reset your password, click here. Having a problem logging in? Please visit this page to clear all LQ-related cookies. Introduction to Linux - A Hands on Guide This guide was created as an overview of the Linux Operating System, geared toward new users as an exploration tour and getting started guide, with exercises at the end of each chapter. For more advanced trainees it can be a desktop reference, and a collection of the base knowledge needed to proceed with system and network administration. This book contains many real life examples derived from the author's experience as a Linux system and network administrator, trainer and consultant. They hope these examples will help you to get a better understanding of the Linux system and that you feel encouraged to try out things on your own. Click Here to receive this Complete Guide absolutely free. Search this Thread 02-11-2014, 04:45 PM #1 orev LQ Newbie R