Questions tagged [ext4]

The ext4 or fourth extended filesystem is a journaling file system for Linux, developed as the successor to ext3.

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Why do disk errors appear in dmesg output even though fsck has not been run?

I have an 8TiB disk attached via UBS3 and formatted into 3 EXT3 partitions which I use as a backup drive (it's plugged into a SATA cradle). The disk has been attached and mounted for several days ...
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What is the state of ext2/3/4 support in Windows as of 2020?

I haven't used Windows on my own machine for several years, and thus have not had the need to access ext2/3/4-formatted partitions with Windows. I had used to use ext2fsd, which, with some grumbling ...
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Can't create files with specific names in specific directories. “no space left on device”

I ran into problems with a proces that produces a huge amount of files within a subdirectory (potentially even going into the millions) following a very specific filename-scheme (e.g. something like ...
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How to read/write a filesystem with ext4+LVM+LUKS on Windows?

I'm dual-booting Windows with Ubuntu, and I've installed Ubuntu in an encrypted partition. The partition layout is like this: OEM Partitions Windows partition Some other partitions Ubuntu ...
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ext4 disk cleanly unmounted, but fsck.ext4 claims it was not and finds errors

I've got a (new) 8TB SATA hard disk that I bought to backup my Ubuntu 16.04 data disks. It's connected to my box via a Technet USB3 docking station (that I've used before and not had problems with). ...
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NTFS vs Ext4 - Reliability [closed]

Background I have an NTFS formatted external drive attached to my Ubuntu 18.04LTS system that I use for temporary staging of files - some video files, some large archives receive from clients, lots ...
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What's the best way of creating and automounting disk images on Linux?

I have an existing Ubuntu installation, it has ext4 filesystems in it. I'm trying to use Timeshift to backup its data to an external hard drive. The Timeshift utility is only able to take either ...
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Ext4: messing inodes & superblocks

writing my first post here after searching all known linux forums looking desperately for a solution. Short story is, I did a lv size reduction before resizing the fs first. That turned into a ...
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Directory junction equivalent for ext4

In the NTFS, directory junctions used as hard links for a directory. However, on the ext4 file system, no such equivalent exists (to accomplish this task, you have to make a symbolic link). Is there ...
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etx4: failed to create a filesystem with block size less than 4 KB on large partition

OS: Ubuntu 18.04 File system partition size: 472 TB ext4 file system is successfully created with 4KB block size. When attempted to create same filesystem with 1KB or 2KB file system block szie ...
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Is it possible to mount an ext4 partition in Windows, and move the ProgFiles and Users folders on that partition?

I am looking for the most storage-efficient way to dual boot windows and linux with linux being the 'primary' OS. I had an idea, that maybe I can create a very small partition that is just big enough ...
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How do you check the size of a disk and its max number of inodes

I just had a computer crash I think because I exceeded the max number of files. Eventually I would like to increase the number of inodes of a drive as this person has done https://serverfault.com/...
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ext4 slow write performance after file system is 90% full

I'm using Ubuntu 18.04. My observation for ext4 file system is, once I cross the 90% of data usage the write performance crawls. We have a RAID6 configuration over 12 disks, total 90TB file system. ...
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“No valid partition table was found on this device.” + “Error: Can't have a partition outside the disk!” + fdisk reads “7.3T” Size; How do I fix this?

Distro: Netrunner Blackbird (Debian) I/O: Sata to USB cable KDE Parition Editor: "No valid partition table was found on this device." me@computer:~$ sudo parted -l Model: ATA LITEONIT LCT-128 (scsi)...
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is it right to mix diff file system between kafka machines

we have kafka cluster with 3 machines each kafka machine use disk for DATA , and each disk is 20TB size the file system on the disk is ext4 now we want to add additional 5 kafka machines but to ...
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How to make every file available for every one on every computer on an EXT4 usb stick?

I need to have an USB stick with a git repository on it because i may want to change things in the repo on several computers (centos and redhat) The repository uses symbolic links so this stick ...
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How to fix jorunald, ext4-fs error on ubuntu

I have ubuntu installed on my laptop. At first, everything worked fine, but at some point the following error occurred. Ubuntu freezes during operation and after a few seconds comes a black screen and ...
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Linux: Specifying precise total size when formatting

How do I format a partition into ext4 with a specific amount of total filesystem space, which is in the second column of df -B1? Can I do that with another filesystem type? I need that only for test ...
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Does Windows 10 now support EXT4? [closed]

I recently updated my home PC from Windows 7 Pro to Windows 10 Pro via the inline update tool (update existing installation.) This went smoothly with no notable issues. Upon completing the update I ...
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how to change from zfs to ext4

i accidentally create zfs pool to sda1 with sudo zpool create -f lxd-zfs-pool /dev/sda1 zpool status output is pool: lxd-zfs-pool state: ONLINE scan: none requested config: NAME STATE ...
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Make a folder access case insensitive on Linux ext4

I'm trying to run a mod for a game on Linux and this mod reads files from a texture folder in a case insensitive manner (the mod runs on windows as well). I was wondering if there was a way to expose ...
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Can I create an encrypted file containing a filesystem whose content can be altered only in a docker container?

Filesystem in a file with on-the-fly encryption accessed by docker container in an isolated manner. I am trying to achieve the following setup: A file is on the host The content of this file is ...
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Windows/Linux shared system drive storage formatting

I plan on setting up a dualboot with Windows10 and ArchLinux. They will share a 1TB SSD and a 3 TB HDD. How should I format the partitions on the different drives? What are the advantages of ext4 vs ...
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Ubuntu 16.04 create ext4: 500 TB file system

The ext4 standard suggest one can create a file system upto 1 EB in size. My goal is to create 500 TB of ext4 file system on Ubuntu 16.0.4. Check my fs creation command: sudo mkfs.ext4 -m 0 -J ...
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How do I mount an overlay with dmsetup?

Simple question but I couldn’t find the answer : I’ve an ext4 filesystem stored inside a squashfs volume (so read‑only) and a dm_snapshot_cow file for providing write access. What’s the dmsetup ...
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How to rename a file on an ext4 filesystem from Windows with ext4 incompatible features with ext3 enabled?

I know about doing something like mounting the disk but all those solutions works because ext2 is retro compatible with ext3 and ext4. But that time, it won’t work : I enabled ext4 feautres so ...
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45Gb used out of 70Gb but only about 500Mb left according to df. How to troubleshoot the reason?

I’ve an ext4 filesystem which is stored as a file inside another fileystem (not a block device). On this system, I have 2 Berkley databases with the first being 25Gb large and the second being 20Gb ...
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Generated ext4 filesystem fails to copy correctly a big file

I'm using Buildroot to generate a Linux system for an embedded device. It build all the system in a "target" directory and then call mke2fs to generate a filesystem from this "target" directory. The ...
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How to mount Android 10 vendor image file

I used to extract Android vendor image via following steps: Convert sparse image to raw image: simg2img vendor.img v.img Mount the raw image for copying files: sudo mount v.img somefolder However, ...
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543 views

How to get a list of the least used (read) files on a Linux system

I'm doing a clean up of a hard drive to free up some space and avoid unnecessary files, I want to get a list of the files by their frequency of usage (i.e get a list of the most files read and the ...
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Do I have to sync after mv?

starting with data at rest, I mv ./file1 ./file2. Assuming etx4, will the (inode) data be at rest when mv completes? What if it's mounted with sync and/or data=ordered? I just can't find this ...
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Clone EXT4 Drive on Windows with Buffer

I have an external drive with Linux on it on EXT4 partition. I want to clone it to another (Larger) external drive. I have the following constraints: Both drives can not be attached at the same time ...
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Grub2 Not Recognizing EXT4 File System

I am trying to make a bootable kali linux usb and have it working for legacy bios computers. However, uefi is causing some trouble. The usb is split up into 3 partitions. The first is the efi/boot ...
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Recovering data from Synology NAS – RAID5, ext4, “number of reserved GDT blocks insanely large”

I have a 4-disk RAID5 array that had one of its four 3TB HDDs die. Being that RAID5 can tolerate a single drive failure, I'd like to try to operate the RAID5 without replacing the dead drive. (Run ...
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Virtualbox Says I can't create over 4GB files at FAT but I have EXT4

I installed VirtualBox at AUR and want to create a virtual machine for Arch Linux. For that, I mounted my SSD which has an EXT4 file system. Then I tried to create a virtual hard disk for my virtual ...
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flash drive available space lower than expected with ext4

I recently formatted a 256G flash drive with ext4 on debian. Afterwards I set the reserved disk space to 0 via tune2fs -m 0 /dev/sdb1. However when I call df -h the available space shows only 229G. ...
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Remove specified directories with debugfs to save time to e2fsck verification?

Turns out that my NAS QNAP had a disk failure, ending in the Filesystem clean with errors. I have little to no experience dealing with recovering failed filesystems. I have been running e2fsck_64 and ...
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Resized partition is not recognizing new space [duplicate]

I'm migrating from a 250GB SSD to a 1TB SSD, but after cloning and resizing the root partition the volume still only shows the original partition size. Here are the steps I took: First, cloning the ...
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Linux ext4 restore file and directory access rights after bad backup/restore

I kind of screwed up the backup of my personal directory with rsync (maybe because I'm backuping on an NTFS filesystem): all files are here but all files and directories access rights are 777. I was ...
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How do I Edit ext4 filesystem data file

I have an ext4 filesystem data file myfile.bin file myfile.bin gives Linux rev 1.0 ext4 filesystem data, UUID=...... (needs journal recovery) (extents) (large files) (huge files) I am able to ...
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Ext4 “Block bitmap differences” on new USB3 drives

I just bought two new USB3 drives, 2.1TB capacity and they came formatted to ExFAT. Normally I'd reformat to NTFS because NTFS works on Microsoft and Linux devices but recent difficulty with drive ...
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Recover data after reformatting an ext4 partition and after trying recovery tools

I have mistakenly formatted a linux ext4 partition in the hard disk and wanted to recover the data. I have ran testdisk and fsck.ext4 on the /dev/sdb1 partition, but with no luck. Testdisk has ...
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can't read files of a ext4 USB stick on Windows

I setup a USB stick like this: lsblk sudo fdisk /dev/sda o n w sudo fdisk -l /dev/sda sudo mkfs.ext4 -L mystick /dev/sda1 sudo mkdir /home/pi/Desktop/mystick sudo mount -L mystick /home/pi/Desktop/...
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Analyse allocated space in Ext4 partition to improve data recovery efficiency

I'm trying to use Lubuntu to recover as much data as possible from a failing 4TB hard disk drive. According to GParted the main partition, formatted in Ext4, contains only 553GB of data. I attempted ...
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745 views

Repair corrupt ext4 filesystem

I have a 500GB HDD on my Ubuntu machine with about 80GB worth of data with one partition (/dev/sdb1) formatted as ext4. I wanted to resize it in order to make room for another partition, and so I did,...
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What could cause a freshly formatted ext4 partitions to have wildly different used space?

I have four ext4 partitions on a newly formatted gpt disk. Eventhough I have no files in these partitions a lot of space is used up already. Highlighted in blue is a partition that has less used ...
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Why an empty directory has large volume?

All the directories below are empty [user@xxxx ~]$ ls -lah /home/1m total 387M drwxr-xr-x 22 foo foo 4.0K Apr 17 22:49 . drwxr-xr-x 10 foo foo 4.0K Apr 17 22:49 .. drwxr-xr-x 2 foo foo 9.2M Apr 17 ...
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Recover secondary drive

I haven't been able to mount my secondary hard drive, and I am unsure as to the error. This happens when I try mounting through Nautilus: I tried sudo fsck.ext4 -y /dev/sdb1 and sudo fsck /dev/sdb ...
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Filesystem immediately stops working after hotswap disk inserted in secondary controller

I have a computer with one 250GiB SSD disk connected to first onboard SATA connector which holds one EFI partition and one root partition (ubuntu 19.04). The computer also has a second discrete SAS ...
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Is there a way to execute software from EXT4 partitions on Windows 10?

Right, my scenario is that I have a Linux system set up and I was thinking about maybe setting up a Windows 10 dual boot, for reasons. The problem is that I like gaming, and I have a hard drive ...

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