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

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What is the best freeware app for Windows to mount EXT4 partitions (from a GPT 4TB Disk) as RW, safely without corrupting the EXT4 partition?

My Computer is set up as Dualboot Windows and Ubuntu. I have 1 OS drive, and 1 hard drive with a /backup partition (which has all my family photos and data) and it is ext4. Also note... it is EXT4, ...
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Synology file recovery using extundelete

It's never easy... build a Ubuntu machine for the expressed purpose of recovering deleted files or folders from a Synology NAS using extundelete. I took one of the RAID1 drives out of the Synology ...
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Xubuntu 14.04 Automount ext4 USB Stick as root

I recently formatted my new Sandisk USB Stick with linux from the default FAT32 to ext4. Unfortunatelly, when Thunar Automounts the stick, it is mounted as root and not as the current user, so if I ...
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fstrim does not work for ext4 as root

I have a SanDisk SSD P4 32GB and I use ext4. Ubuntu 14.04. I read that I should execute the trim command from time to time, however, this command doesn't work on my machine: # LANGUAGE=en_US:en ...
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37 views

How can I allow anyone to read/write files on a USB stick?

I've got a USB stick which is only used on Ubuntu machines, so is formatted ext4. The users on my machines have various user IDs, which means that a file created by a user on one won't necessarily be ...
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ext4 data recovery from gparted error

There is a number of other questions on this topic, however majority concerns formatted partitions or drive failure. In my case: During resizing and moving 2.7TB partition in Gparted, I encountered ...
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2answers
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why is ext3 being used as disk format for most of linux and ubuntu and not other file systems [on hold]

Can anyone explain why is ext4, ext3 or ext2 disk formats that have been used in Ubuntu as default and not others. Are there any advantages or disadvantages over other? If so, what?
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ext4 File System got damaged due to improper write

This is what happened, I inserted my (important) external HDD into a RedHat 6 machine, did my task's, unmounted the drive via Nautilus, and physically detached the drive from the machine (and now I ...
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116 views

Why is btrfs slower than ext4, and why would I want to use it in an ubuntu install? [closed]

At this time (August 2014); having been following the benchmarks for btrfs on Phoronix,(http://www.phoronix.com/scan.php?page=home) and have been seeing on the aggregate; slower performance than ext4; ...
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29 views

Suspending with root on USB

I have a laptop running Ubuntu 14.04 from a root file system on USB storage. This is not working well, because after wake up from suspend, ext4 will frequently try to write to the root file system ...
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25 views

How to extend EXT Partition of Ubuntu

I've Dual booted Ubuntu in PC by shrinking the C: drive actual size of c: drive ntfs is 100 GB and Ext partition is 15 Gb now I'm thinking to extend the size of EXT where Ubuntu is installed without ...
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53 views

Ext4 going wild

All of my main hard drive Barracuda 7200.12 SATA 6Gb/s 250GB ST3250312AS ( 2 years old ) going wild. It has started from 28 June 2014. Partitions sda1(root), sda5(home), sda7(var) caught this from ...
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How to modify the starting boundary of an ext4 partition?

There are 4 partitions on the disk. parted /dev/sda --script -- print ... 1 1049KB 50.0GB ... ext4 2 50GB 82GB ... linux-swap 3 82GB 100GB ... ext4 4 100GB 1000GB ... ext4 My goal is to ...
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118 views

slow hard disk Ubunto 14.04 ext4 on thinkpad dual boot

Ext4 - is it slower? Have a Thinkpad with 8GB drive , 4 processors. Intel® Core™ i3-3110M CPU @ 2.40GHz × 4 . Ubuntu 14.04 LTS with updates applied. File reading is very slow. IDE STS hangs when a ...
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425 views

Can't automatically mount ext4 partitions under Ubuntu 14.04 (but can mount NTFS ones)

So I just got alongside my Windows 8.1 a cool Ubuntu 14.04 and quite happy with it (my default OS now). I just have a problem: the fact that I can't mount ext4 partitions at boot is quite annoying. I ...
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153 views

Bcache hangs on Ubuntu 14.04

I successfully setup my system to use bache in /home partition (200GB SSD partition as cache for 500 GB HDD partition). However, I keep receiving these messages: INFO: task bcache_writebac:222 ...
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90 views

How to remove has_journal feature on primary disk

I'm running a Ubuntu 14.04 LTS on a VMware virtual machine and I'd like to disable journaling feature on the primary disk. I did find this useful post but I can't use it because it says The ...
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Is my harddrive broken?

I've got a new 4TB drive. My old (2TB) drive was NTFS formatted. I formatted my new drive with a single 4TB partition to ext4. I've moved content of my old drive to the new drive to format my old ...
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shrink ext4 partition on raid 10

My question is similar to Move ext4 partition, but the challenge I couldn't figure out is how to shrink a partition from the start. So suppose originally the partition (with raid) is like this. ...
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117 views

bcache corruption after reboot

bcache seems to work fine, but after rebooting, the ext4 filesystem stored in /dev/bcache0 frequently, but not always, becomes corrupted - seemingly, it only damages metadata for recently modified ...
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22 views

When is disk fragmentation an issue and how does one fix it?

My ext4 drive recently filled up to 95 percent capacity before I cleared out space on my disk. While transferring files from my computer to an external hard drive, I noticed a lot of my oldest media ...
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Ext4 switching to read only mode

I have very frustrating problem. My server randomly switches / mount to read only without any pattern. Only message that I've found in logs is: htree_dirblock_to_tree:920: inode #14286877: block ...
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Unable to access ext4 partition, but can access Fat32 [duplicate]

I recently installed ubuntu on a new hard disk with several ext4 partitions and 1 fat32 partition for installing windows in the future. I am able to view all partitions in File Manager. The ...
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Block size of 4096 Byte min. file size is 1 MB

If I create a new text file of size 1 KB, it takes 1 MB on my disk, although block size is 4096 Byte, how is this possible and how can I change this? System: Ubuntu Server Kernel: 3.5.0-39-generic ...
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ext4 partition of a 1TB hdd keeps slowing down when in use

I have a 1tb hard disk that has 3 partitons, a 890 ext4 partition and 2 ntfs partitions that add upto around 70gb Accessing the 2 ntfs partitions is fast and read and write operations on them are ...
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53 views

Linux partition system

While installing Ubuntu, I only created two partitions for Ubuntu one for swap and I formatted the other as ext4 and set mount point as "/". The Operating System is working flawlessly. I was just ...
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Superblock error

Here's what I did: I wanted to reinstall the system so I ran Ubuntu Live CD, started to resize my HDD partition and suddenly everything crashed, the black display appeard. Then thought that I ...
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Ubuntu installer on ext4 partition on sd card

I have an 16 GB sd card, which I'm using in order to make a triple-boot installer with osx, windows 8.1 and ubuntu 14.4. I am trying to make it with three partitions, namely hfs, ntfs and ext4, so ...
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288 views

Ext4 larger than 16TB is stable for production systems? [closed]

Ext4 seems to have had a size limit of 16TB due to e2fsprogs. But e2fsprogs 1.42 release says it supports filesystem larger than 16TB. So, Ubuntu 12.04's current e2fsprogs' version is 1.42, and I ...
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49 views

Gparted resizing boot partition

So i have some unallocated space and the root partition which is pretty small. I want to add that space but it needs to move it and then grow it . I know it will take some time but i'm more concerned ...
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39 views

Add space from a NTFS partition to Ubuntu

So, i installed Ubuntu alongside my Windows 8 on a 15 GB partition i took from another drive . Ubuntu splitted it into 2 partitions of 7,96 GB and 7,04 GB and i realized that it's kind of small so i ...
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Using part of an external hard drive for ubuntu and another part for windows

I have a 1TB external hard drive that I have installed ubuntu 14.04 on, partioned as 150gig for ubuntu and 2gig for swap space. The remaining memory is free. What I am wanting to do is use the ...
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Any File Manager for accessing files of linux from Windows? [closed]

Any File Manager for Windows that can read ext formatted disk?
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How long does ubuntu take to create ext4 journal;ing file systems for 500Gb drives?

I have a new server with four new 500Gb rotary hard drives. I am installing Ubuntu 14.04LS from a bootable USB flash drive. I asked Ubuntu to format the HD's with ext4 journaling file systems. Three ...
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37 views

How do I backup system to a different partition on the same drive?

I am a linux newbie, tech oldie. I am setting up a system with Lubuntu 14.04. Although, when I ran the installation I created two partitions -- 1/2 for quickie backups and 1/2 for the installed ...
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Advice on what FS to use

I am installing a 2TB drive on an Ubuntu server that will be accessible on a network of Windows and Ubuntu machines. Should I format it using FAT32 or EXT3/4? Thanks David C
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Problem with booting Ubuntu 14.04 from a btrfs partition

I have installed Windows 8.1 Update 1. After that I have installed Ubuntu 14.04 on a btrfs partition. However, after the restart there was no GRUB menu to choose from and the system booted directly to ...
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1k views

Upgrade to Ubuntu 14.04LTS from 13.10 failed and now have a black screen

I tried to upgrade from Ubuntu 13.10 to 14.04LTS. In between it asked about some configuration files whether to keep or replace them, for all I chose to replace them on each prompt but at the end ...
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I accidentally formatted the wrong volume - is it possible to restore the old Ext4 Filesystem?

I just formatted the wrong volume - is it possible to restore the old ext4 partion? Of course that happened after deleting the old backup - great.
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Files tranfered from ubuntu to an external NTFS hdd are UNREADABLE in Windows. Why?

Transfered files from Ubuntu-ext4 to NTFS HDD are UNREADABLE in Windows. I have transfered files from ext4 Ubuntu hdd[my notebook] to an external NTFS HDD used in windows[a workstation]. Before i ...
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Got a corrupt BTRFS partition, but is still usable, how to convert it to ext4? [duplicate]

I've got a corrupt btrfs partition, and also because of its low speed, I am thinking of 'converting' it to ext4, how can I convert a root partition from btrfs to ext4 without loosing the ability to ...
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Ubuntu 12.04 ext4-fs error/inode

I am running a Dell PowerEdge T420 with Ubuntu 12.04 32bit. The hard drives are a RAID1 setup. Last week, I began getting errors that cause the build I am running to fail. I found this in the log ...
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dd'ed the first 200MB of a HDD, is the filesystem recoverable?

In a moment of stupidity I let a script run dd on one of my (non backed up :() HDD's, 3TB in size. It had a single ext4 filesystem on it, which now won't mount. Things I've done so far (without ...
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Hardware RAID1 - ext4 errors won't go away with fsck

Short summary: yesterday my server's root drive (RAID1, 2 identical drives mirrored) was kicked into read-only. Trying to reboot I saw superblock errors, so I boot into Live-CD and fsck the drive. It ...
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Gparted merge unallocated space to ext4 partition

Here I want to merge unallocated space to ext4 partition. But during running in Ubuntu it is not allowed. Am I right? It has key picture. I must do that Ubuntu DVD booting from it and selecting try ...
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Ubuntu 12.04.4 ext4 filesystem, excessive overhead

I'm experiencing a baffling problem with two 12.04.4 servers I've just installed - there is what appears to be excessive file system overhead for anything I save on its folders; for example, a single ...
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Partition Scheme Questions in Dual Boot Ubuntu/Windows installation

I just got a new laptop with Windows 8 and I am ready to install Ubuntu. I see the hard drive already has quite a few partitions, most of which seem related to Windows recovery. See capture: I am ...
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wrong file system type passed to fsck

My Ubuntu hanged today while it was downloading, as it was unresponsive for long i shut it down forcefully . Later when i switched it on, it was not coming up so i used a live cd to fix the file ...
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1answer
589 views

Value too large for defined data type

I need to burn a ISO (3.3GB in size) using Brasero using my Ubuntu machine, however when I try to do it which the ISO is saved in my Portable USB Drive with NTFS file system, Ubuntu 64-bit says: ...
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223 views

HDD data recovery from a formatted ext4 into fat32

I'm new to ubuntu but it didn't took me long to realize that it's way better than privative options. I've got it installed on a desktop PC and I also wanted to install it in a laptop which is not mine ...