Questions tagged [data-corruption]

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Home directory reset, all data lost after restart

After starting my ubuntu 21.10 machine this morning, I find that the home directory of one of my user accounts is completely reset to the state of a new user. All my files are gone and ubuntu presents ...
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Problem dealing with corrupt file and mdadm

I'm running ubuntu server 20.04 with 4x 4TB drives in a RAID5 array using mdadm to provide a non-root, ext4 partition. I have a few rsync scripts to backup key folders and one of them generated an ...
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I am stuck at GNU GRUB prompt while starting my laptop but after applying all the solution given in this community I'm again stuck at ( initramfs)

Currently problem is with superblock has an invalid journal error. I want to know how to fix this? Solutions I've tried is First i tried this: Stuck at GRUB command line Then this: https://linuxhint....
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External harddrive files corrupted after usings Disks (and hitting wrong button)

New user of Ubuntu 20.04 here and royally messed up already. I apologize but I need someone with patience to support and hopefully help me. I used a Seagate harddisk to backup my files from the ...
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4 votes
1 answer
699 views

fdimage of 800 GB?

I'm using Ubuntu 20.04.4 LTS. Why do I have a file in /home/myname/ called fdimage that is 805,8 GB? My SSD is a 500 GB one, and the partition allocated on it is only 125 GB... Clearly something is ...
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"/etc" directory is missing or corrupted in Ubuntu 20.04 LTS

Hello fellows Ubuntu users ! I hope this is not a duplicate but I need help on my computer. Since I switched from Kubuntu to Ubuntu (both 20.04 LTS), I keep having issues with this computer. I thought ...
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321 views

Cannot boot - Getting Failed to isolate default target error

Here's what I have on my hard disk Primary partition 1 win-xp Extended partition 2 data1 boot partition swap ubuntu 18.04 ubuntu 20.04 data2 Both ubu18 and ubu20 partitions have grub config files. ...
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Causes and consequences of "/dev/sdb3: Inodes that were part of a corrupted orphan linked list found" error?

Recently had to fix a /dev/sdb3: Inodes that were part of a corrupted orphan linked list found error (using the info here: https://askubuntu.com/a/948207/760862) by simply running the fsck /dev/sdb3 ...
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137 views

Ubuntu volume is corrupt but it works on Windows

I'm trying to install ubuntu in dual boot with Windows 10. My PC has 1 SSD where Windows is located and another hard disk where I want to create a partition for Ubuntu. It worked one time but during ...
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External HDD Appears Bigger (More Space) Than It Should

I've come upon quite a weird situation.(Or maybe it's not, but it's the first time I notice something like this). I bought two 1-Tb HDDs about 6 months ago and I've been using them on both Windows and ...
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Broken text file on Ubuntu 20.04

Like i said in the title, i have Ubuntu 20.04. I was doing some stuff and i noticed that one little text file that i have where i save some important stuff its suddenly broken. I think its size its ...
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3 votes
1 answer
820 views

Opening this file in nano shows peculiar red area

I have a simple text file. When I open it with nano, there is a red area covering space in front of some of the text. I have never seen this: What can I do about this?
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3 votes
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787 views

Ubuntu freezes and doesn't respond even to Alt + SysRq + REISUB

I have HP ZBook Firefly laptop with Ubuntu 20.04.2 on it. And about once a week it freezes. I'm going to describe the last freezing that I had recently: My laptop didn't respond to mouse (the cursor ...
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1 answer
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Recurrent fsck /dev/sda1 error - should I reinstall Ubuntu 20.04?

Last week I booted Ubuntu 20.04 but I got the error initframfs: /dev/sda1 contains a file system with errors. I fixed it by manually entering fsck /dev/sda1 but today I got the same problem. Shall I ...
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My USB drive is corrupted and read only

I have a problem: My USB drive (SanDisk) is corrupted and marked as read only. When trying to mount it in the terminal it throws the following error: Error opening '/dev/sdd1' read-write $MFTMirr does ...
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How to know if my Linux distro is corrupt - Windows Subsystem for Linux

I have the Windows Subsystem for Linux installed on my Windows 10 laptop, and I have Ubuntu-20.04 installed there. Today, I read an old blog post from Microsoft, Do not change Linux files using ...
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Exception emask 0x0 SAct in Ubuntu 20.04

Basically when I try to get into the ubuntu, the error is coming. Please help me out with this. EDIT : It might be useful for others. So basically my hard disk was corrupted in which ubuntu is stored. ...
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Can you help me please about fsck [duplicate]

Check the image or ask me for details. Thanks
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1 answer
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Apache + File on mounted folder = Corrupted file

We migrated our LAMP Ubuntu 16.04 (Apache 2.4.7) to a new one with Ubuntu 20.04 (Apache 2.4.41). Both with a drive mounted on /var/www/intranet/onyar. With the new one, if I download a file from this ...
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2 answers
1k views

Linux Root Partition gets corrupted frequently

I have Ubuntu 20.04 Installed Alongside Windows 10. Used it for more than a year and worked flawlessly but now I'm facing this disk corruption error. First Encounter: Was Trying to take a screenshot ...
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Corrupt external Hard Drive

after plugging in my Hard Drive to to a Windows 10 PC it got corrupt. i'm using Ubuntu 20.4 and it only shows when i open Disk. but the only options i get are Format Partition Create Partition Image ...
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2 answers
353 views

Ubuntu 20.04 occasionally freezes shortly after login Ext4 Journal Failure

I have an Asus laptop with newly installed Ubuntu Budgie 20.04, installed on dev/sdb2, a 1TB Crucial M.2 SSD. Fairly often (about 50% of the time), shortly after I login and begin working, Ubuntu will ...
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1 vote
0 answers
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Ubuntu not booting and can't mount system partition from live USB (partition in use)

I have a dual boot installation with Ubuntu 20.04 that got somehow corrupted to the point that it won't boot anymore. I have all my data backed up so in the worst case I can just reinstall, but I'd ...
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1 vote
0 answers
71 views

How to fix a disk image that is flagged as read-only (and save my wedding pictures on the way)?

Back in 2014, my wedding photographer sent me some pictures he took and were not worth printing on a USB key. Last week, I tried to take a look at these pictures but most them were now corrupted. ...
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3 votes
1 answer
3k views

How to repair corrupted JPEG files that still have their thumbnails?

I've got a bunch of photos that were on an SD card. Most of them are corrupted now and I cannot open them in any program (Gwenview, GIMP, same on Windows...). But every file browser can still ...
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1 vote
0 answers
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Bad blocks reported by the kernel, none to be found after scanning

Recently a system that I mainly use over SSH stopped working. I rebooted it and it showed error messages (sorry, didn't take a photo) saying the disk needed to be checked. I checked the disk with fsck ...
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SD disk with win 10 is corrupted - how to fix it?

I'm currently using Ubuntu but would like to also install win 10 - But I cannot do anything with my SD disk Any ideas how to fix it? <- I dont care about data at /dev/sdb, just wanna make it work (...
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0 votes
1 answer
369 views

Intermittent data corruption, how to diagnose?

TL;DR: I thought I had a data-at-rest corruption error on 2 SSDs, but I think it is after reading the data. How can I diagnose where the failing part is? My ML training algorithm opens thousands of ...
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Viewing files from a corrupted Windows hard drive

I apologize if I sound really nooby ahead of time; this hard drive is giving me so many problems... So, it's a windows laptop hard drive that has the notorious "Blue screen of death," I can install ...
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1 vote
2 answers
4k views

How can I delete a corrupted directory? (`rm: cannot remove 'directory': Bad message`)

I am in a mounted VeraCrypt volume and have a corrupted directory that I wish to delete. When I attempt to rm the directory, I get a message like the following: rm: cannot remove 'directory': Bad ...
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1 vote
1 answer
3k views

Repairing a corrupt mp4 - I'm having issues getting untrunc installed

Basically, I get the error "moov atom not found" when attempting to play an mp4 video on vlc or any other players. Following the advice given on this thread, I'm attempting to use untrunc to generate ...
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1 answer
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Customizing Ubuntu 18.04 for protecting data

Is there any way to display and give access to only the browser on Ubuntu 18.04? I want the whole system to be protected and my use case anyway needs only the browser. To give a clear picture, I want ...
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1 vote
1 answer
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Zero byte files after power-cycling 18.04 LTS

I tried to reboot an 18.04 LTS machine but it didn't respond so after waiting some minutes I power-cycled the machine. The machine started fine but I have found some of the recently edited files are ...
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1 answer
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Ubuntu Corrupts BIOS on Ryzen 3000 Machine

I have a PC with an Asrock B450M Steel Legend motherboard and a Ryzen 3700X CPU and I occasionally boot Ubuntu from the live DVD. Unfortunately it looks like Ubuntu is corrupting the BIOS though. ...
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1 vote
1 answer
164 views

Formartting SD Card - Corrupted FAT32 Filesystem

I have a corrupted SD Card whose filesystem is FAT32. I tried the following stuff but i am still able to see the contents in the SD card. I can neither add new files nor can i delete any files from ...
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Corrupted files

While installing something, I used the chown command the wrong way (changed permissions for basically all directories) and had to reinstall Ubuntu. Before that I had a big problem with making a backup ...
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1 vote
0 answers
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Files corrupted after space transfer between partitions

So I was trying to move space from my windows partition to Ubuntu partition using Gparted using a live Ubuntu USB disk. Everything was going fine until out of nowhere the screen went black and then '...
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4 votes
1 answer
752 views

File Corruption Large Files (32 GB) on 18.04 LTS [RESOLVED]

I am getting irregularities with large sized files. I have 64 GB of RAM, and my storage drives are all Samsung 860 EVO. I am running mdcrypt on top of my raw drives, luks RAID on top of that, and ext4 ...
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2 votes
1 answer
586 views

Ubuntu Server 18.04.2 HWE kernel: ./boot/grub/efi.img file failed the MD5 checksum when booting UEFI

I downloaded Ubuntu Server 18.04.2 (classic installer) and put it on a flash drive. I then ran the integrity check and all was well. But then I realized that I wanted to install the HWE kernel. After ...
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0 votes
0 answers
1k views

Why does Ubuntu seem to be destroying my SSDs?

Hi folks, I tried to upgrade from (Lubuntu) 18.04 to 19.04 over the weekend. The upgrade didn't go as planned - the system wouldn't boot - so I decided to do a fresh install of Ubuntu 19.04 (I ...
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1 answer
285 views

Software corrupted during upgrade to 19.04

I had followed this guide to upgrade my system from Ubuntu 18.04 LTS to 19.04.. sudo apt dist-upgrade After issuing this command, as the update progress reached almost 75%, the system automatically ...
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0 votes
1 answer
2k views

Unable to recongnize patition table after overwriting the first MB of HD. How can I recover the data

I had my GRUB partition of 1 MB starting at block 2049. My BIOS did not recognize it, so I decided to move it to the beginning of the disk using the command dd if=/dev/sda5 of=/dev/sda bs=512 count=...
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1 vote
1 answer
7k views

Fix packages with missing files

Somehow two packages (that I don't want anymore) got corrupted after a file system check and are now missing files. I installed and initialized debsums and when I run it it gives a load of missing ...
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1 vote
1 answer
526 views

Photorec : No file found in a full 64GB SD card. What to do?

Recently my memory card (Samsung Evo 64GB, almost full) was showing 'corrupt' on my Tablet. So I tried to recover the important details using photorec. It ran for around 1 hour but 0 files have been ...
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Cannot boot ubuntu due to corrupt disk

I am having a problem with my main hard disk which I normally boot to. When I tried to switch on tonight and couldn't boot to ubuntu and was presented with grub rescue due to a bad sector. I tried ...
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0 votes
1 answer
4k views

Error at startup on Linux after computer shutdown during Ubuntu 18 update [duplicate]

I tried to update my laptop to Ubuntu 18.04 (from 16.04) last night, but I had a power outage and I believe it was interrupted in the middle. As I woke up and noticed that the power was out, I ...
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2 votes
1 answer
47 views

Windows 10 'fixed' files created in Ubuntu

I have a dual-boot system with Ubuntu 16.04 and Windows 10. Today when I launched Windows 10 it started "Checking and repairing" the hard drive, found several "corrupt files" and "fixed" them. Has ...
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0 votes
1 answer
51 views

Removing exeuctable bit on ntfs stored linux files corrupts files

I have a shared partition setup as ntfs for storing Linux files between distros and WSL. My /etc/fstab for the shared partition looks like this: UUID=F2C2ACE4C2ACADF3 /mnt/e ntfs-3g permissions,...
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3 votes
1 answer
117 views

Completely disable Ubuntu 16.04 updates Yoga 2 11

I was just wondering how to completely disable updates on my Yoga 2 11, which has a corrupted BIOS-- I can't fix broken updates with a reinstall anymore. I was wondering specifically if there was a ...
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2 votes
1 answer
11k views

Error in brand new External Hard Drive: "ls: reading directory '.': Input/output error"

This morning I was downloading some files directly to an EXTERNAL Hard Drive (1TB Seagate Hard Drive, bought a week ago) and I had to shut down the PC without unmounting the disk and while it was ...
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