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

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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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57 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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51 views

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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120 views

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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660 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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62 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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1answer
41 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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29 views

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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2answers
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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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161 views

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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2answers
55 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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2answers
51 views

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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398 views

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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2answers
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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2answers
97 views

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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353 views

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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22 views

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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241 views

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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71 views

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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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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112 views

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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3answers
4k views

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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41 views

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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1k 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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1answer
312 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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1answer
30 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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1answer
224 views

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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176 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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883 views

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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1answer
2k views

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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333 views

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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154 views

Problem creating ext4 partition

I can format partition to linux-swap and ntfs, but can't for ext4. I did boot on a ubuntu usbkey in "try ubuntu" mode. /dev/sda1 was unmounted Here is gparted reports : GParted 0.11.0 ...
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How a tmp folder set on a mounted folder from another ntfs drive does can report free space from that drive to Audacity?

I have set the tmp folder for Audacity on a mounted folder from a target ntfs drive. But I've seen that Audacity does not see the free space from that ntfs drive but instead the free space from the ...
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165 views

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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1answer
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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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Moving free space from C drive(NTFS) to G Drive(ext4)

I am totally new to Ubuntu. I have installed Ubuntu 13.1 with 5Gb space in Drive G but now I cleaned windows on C drive and want to move free space from C drive to G drive. Pls help me with the ...
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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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1answer
327 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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1answer
612 views

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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1answer
5k views

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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2answers
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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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1answer
30 views

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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1answer
436 views

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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1answer
219 views

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 ...