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

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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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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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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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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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100 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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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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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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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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2answers
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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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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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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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429 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 ...
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37 views

Can I create another partition on a single partition system? [duplicate]

I have a system running Ubuntu 13.10 in a single partition. I need to create another ext4 partition, is it possible without reinstalling Ubuntu? Please show me the procedure, if it is possible.
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EXT4 Partition Lost?

Booted up from live media (ubuntu 12.04) with HDD (3TB, GUID, single EXT4 partition used for storing data and nothing else)connected via SATA. For some reason the file system was only allowing "read ...
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How to extend ext4 with gparted?

I am having short in disk space in my ubuntu /dev/sda6 and i have 11.08 GB of free space unallocated in the sense.I have followed different article about the repartition but they are not working here ...
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Is it safe to disable resize_inode on ext4 FS?

I have 2TB spanned LVM ext4 volume which contains large and mostly static files. With "static" I mean they usualy don't change in time. The volume is 99% full, and adding new files becomes very slow ...
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441 views

Why is there a size discrepancy between HFS+ and ext4?

I recently set up an NFS server on my Ubuntu server and I'm currently in the process of migrating my files from HFS+ HDDs to ext4. I've run into a problem however where the receiving disk (ext4 ...
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How to online resize the root partition? (ext4) [duplicate]

i've got a 1tb harddisk with 3 partitons: fat32 /boot/efi ext4 / linux-swap My ext4 partition has 700 GiB free so i would like to use some of that space (like 200 gib) for a Windows 8 partition. ...
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Formatting a USB flash drive as ext4

I'm making a custom bootable USB flash drive with a persistent partition. Formatting the partition as ext2 obviously makes the filesystem very sensitive to improper unmounting. I remember a while back ...
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Can't mount HDD /wrong fs type, bad superblock

I have browsed the many other questions related to my question, there seems to be many solutions for others, but not for me, when I try to mount my HDD using: sudo mount /dev/sdd ...
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My portable HDD cannot be mounted into filesystem — can't read superblock

I have a Seagate portable hdd 1 TB formatted fat32. Now I had no problems at the very beginning, but now I am getting the following error: Error mounting /dev/sdb1 at /media/zorobabel/EFI: ...
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Writes occurring to fresh ext4 partition every second endlessly. Cause and solution?

I've an external 500GB HDD connected to my Laptop which runs Ubuntu 12.04. I've formatted the external drive with one ext4 partition which spans the entire disk. My problem is that the disk makes ...
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How to expand the ext4 partition of virtualized Ubuntu running on top of CentOS/QEMU?

My company is running Xen--VMs run on top of CentOS/QEMU. Recently a customer using virtualized Ubuntu asked that his HDD space be increased. Now, with Windows, this is a joke. You type the new size ...
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Can't solve: ext4 file system creation failure Ubuntu 12.04

This seems to have been covered a lot before, but none of the solutions seem to help. It's the usual getting this error message while installing. The ext4 file system creation in partition #1 of ...
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How do I format an usb to ext4 to use it on Ubuntu without without sudo permisions? [duplicate]

I use Ubuntu in a machine I own and in a machine I only have standard user permissions ( not admin). Is there any way to format a usb to ext4 and make it work (file ownership problems) if I cannot run ...
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538 views

How do I get the source code for just the ext4 file system on a Windows machine?

I'd like to get the source of the just the ext4 file system, but from on a Windows machine. At the moment I've navigated to http://archive.ubuntu.com/ubuntu/dists/saucy/, but everything I've found ...
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Mount point for multiple ext4 partition

I can't find any related question and answer that will satisfy me on my quest. All I see that people telling to create a ext partition with mount point '/' and a swap space. But I want to create ...
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How do I create and tune an ext4 partition from the command-line?

PARTITIONING (e.g. fdisk) What are some useful commands used for partitioning an additional hard drive from the command-line? Since most published guides steer towards GParted and other graphical ...
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Recover from a corrupted filesystem when fsck do not help

Something went wrong with my filesystem, Ubuntu set it to read-only and now under Ubuntu Live Disc, fsck can't fix it. I'm running 13.04 and it won't boot - at startup, it just shows the grub rescue ...
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Why do I keep getting an error when I try to resize ext4 under extended?

I had already assigned unallocated space to my extended partition and now i want to enlarge my ext4 partition. The problem is, it starts and when its almost finished, it gives me an error and makes me ...
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mkfs.ext4 parameters

I have a question about the ext4 filesystem and in specific about the tool mkfs.ext4. mkfs.ext4 -j -O extent <device> What does -j really do? In the manual it says that it creates an ext3 - ...
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snapshot of certain user home directory every 12 hours

I have a build server that builds our comnay product in a continuous build method. the build user is called build (surprise ,surprise, i know :-) ) and most of the data that it uses is simply taken ...
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Mount external ext4 with changed uid and gid

I'm trying to share a single external hard-drive between two ubuntu different machines. The problem is, my user uid and gids are different across the two machines. Is there a mount option for ext4 or ...
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Hotkey to start sync or flushing memory

I'm asking a question in a very strange manner, i'm sorry. I know what i want, but i don't know exactly how it's called. I hear somewhere that ubuntu (or linux) has hotkeys , shortcut to start ...
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585 views

Lost extended partition after installing windows

I was using Ubuntu 13.04 and the hard disk was partitioned as follows: Primary Ext4 (250GB) Linux Extended (250GB) and Ext3 or Ext4 logical partition Linux Swap (4GB) I have installed Windows 7, ...
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Unable to mount Secondary Harddrive

My primary hard drive is a SSD and is boot essential drive. I have a 1.5 TB hard drive (HDD) in my computer which is partitioned: 440 GB for my Ubuntu as ext4. Today when I booted up I got an error. ...
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Use IOzone to check read/write performance of ext4 and btrfs?

Can someone help me to use IOzone filesystem benchmark tool on Ubuntu to check the performance of ext4 and btrfs filesystems? I have installed Ubuntu into a VM.
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Ext4 constantly mounts as read-only

I'm at a complete loss, here. After only using my computer for short periods of time (often less than a minute), my root partition (Ext 4, /dev/sda5) become read-only without warning. This happens ...
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Formated xfs partition to ext4 by mistake, can it be recovered?

I formatted a xfs partition by mistake to ext4. Can this be undone and the data recovered? Actually, I did not chose to have the partition reformatted during installation, I just kept the default ...
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Can't recover formatted Ext4 partition file system. :( Suggestions?

I've been at this for days now, so I'm hoping you can help me! Original setup: This is a 200GB firewire drive, originally formatted via Ubuntu 11.04 Disk Manager with a Master Boot Record, and a ...
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Recovering a file after having formatted from NTFS to EXT4

I used to have windows 7 but I've recently formatted my hard drive to install kubuntu and I've just realized that I forgot to backup a hidden .dat file which defines my bitcoin wallet. Is it possible ...
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how do i format my hard drive to ntfs from ext4 [duplicate]

I have a usb with my windows ISO loaded and ready. Problem is there is no ntfs partition on my hard drive for windows to load onto. I don't want to complicate things by running 2 operating systems. ...
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Superblock set in the future, fixing system clock

I keep getting errors messages about my Superblock mount time being in the future, and insisting on doing fsck on every boot and I have to go in from the recovery options to do this every time. Here ...
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Change root file-system type (LVM)

I have an Ubuntu 13.04 server configured in this way: % df -TPh ...
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Is there a way to find the LBAs for free blocks in ext4

tune2fs can show the number of free blocks. Is there a method/tool to find the actual logical block addresses for each free block? Thanks in advance