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

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ubuntu 14.04 not detecting external hdd ext4

I have a 3TB external hard drive that I have formatted to ext4 using gparted. Now when I plug it into my laptop ubuntu doesn't detect it at all. This is the fdisk output sudo fdisk -l Disk ...
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Can't unmount ext 4 in gparted

I wanted to add extra swap to my pc I followed lots of tutorials but i needed to make a unallocated partition and for that I needed to unmount ext4 I'm totally new in Ubuntu or linux Anybody a ...
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External EXT4 Partition vanished. Ubuntu 14.08

I've had partitions disappear before and been able to rebuild and recover, this time its different. I have a Seagate 200g drive that is a couple of years old and showing bad sectors. No problem, I ...
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Can't create ext4 partition while installing ubuntuGnome 15.04

I tried to install ubuntu Gnome 15.04 on a Sony Vaio laptop currently running openSuse 13.2. The iso's md5 checked out and the usb booted all right, but when I select delete current Os and install it ...
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How to change FileSystem from, msdos to ext3/ext4 on a specific drive

I am relatively new to Ubuntu and I have recently added a new 480Gb+ SSD drive. When I attempted to install a program onto the drive it wouldn't allow it to happen and a error would occur. I ended up ...
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Copying .exe files from ext4 to ntfs

maybe a silly question but.. why cant i copy an .exe file format from linux (ubuntu 14.04) to windows 8.1 without corrupts when i try to execute it? I can copy some others file formats like images ...
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15 views

Recover data from repartitioned SD card?

I had an SD card with an important .cpp file. I forgot about this and repartitioned and reformatted the drive. The drive in question was formatted ext4. Is it possible for me to recover this file of ...
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44 views

Can't extend root partition even after booting from LiveUSB

After doing some research on how to extend Ubuntu root partition, I tried to extend it using the GParted from a liveUSB session of Ubuntu. But I couldn't extend it. When I right click on my root ...
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Permission Problems with Newly Formatted Drive

I'm using an old Windows PC as a NAS, it has 3 drives in it. I wiped the system drive and installed Lubuntu but I left the other 2 drives NTFS. Directories on them were mounted as shares using cifs ...
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30 views

Does not copy files on partitioned Hard Disk

Recently, I partitioned my SEAGATE 1 TB HDD into four portion (200GB, 200GB, 200GB and 300GB) by gparted. But while pasting any copied file to those disk, error occurred. Also while right click , ...
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Ubuntu 12.04 Ext4 ext4_dx_add_entry:2006: Directory index full!

I'm having in some servers this warning, I have a directory with millions (20 more or less) of files but according to ext4 documentation this shouldn't be an issue. Any idea how can this affect my ...
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278 views

How to create ext4 encrypted partition on Ubuntu 15.04 with new 4.1 kernel?

Can I create a new ext4 encrypted partition with kernel 4.1 on Ubuntu 15.04?
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55 views

VFS: Can't find ext4 filesystem

I'm using a Ubuntu 14.04 server. There are errors in the /var/log/syslog file, like this: Jun 26 11:25:36 compute4 kernel: [64813.543046] FAT-fs (nbd4): bogus number of reserved sectors Jun 26 ...
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21 views

Mount type always set to none

Wish you a good day! I want to mount a folder with type ntfs or ext2 or ext4 in order to set permissions for files in that. This is how I did: tudinh@Acoustic:~$ sudo mount --bind -v -t ext2 -o ...
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31 views

Resizing ext4 partition with ext4 partition on runtime

I have burnt an image on a 32gb SD card and about 28gb was unallocated. I have used the disk utility on the unallocated space and made him ext4 28gb. now, I wish to extended the primary ext4 ...
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79 views

Will resizing ext4 partitions with Windows destroy the installed Ubuntu?

As the title says, can I use Windows (7) to resize the ext4 partition Ubuntu is installed on? I dual-boot both Win7 and Ubuntu and want to enlarge the Ubuntu root partition. Is it safe to do this from ...
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43 views

How to get my raspberry pi to recognize my Ext4 formatted HDD

I'm trying to get my raspberry pi to function as a media center. Pretty much everything is working fine, but I can't seem to get it to recognize my ext4 formatted 1TB HDD. Whenever I go to ...
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How do I mount an SD Card as /home/wb9688 by startup?

I want to mount my SD Card as /home/wb9688 by startup using /etc/fstab. My SD Card is formatted as ext4 and the UUID is 93afcc06-65be-4154-9b20-6593f14f6c93. A normal user must have read and write ...
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How can I repair my LUKS / ext4 file system?

my computer was running the whole night and my only open windows where IntelliJ IDEA and Google Chrome. Today my file system seems completely corrupted. Linux Mint can't read any files and folders ...
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23 views

Ext4 to Ext4 file copy slows down whole system

When I try to copy big file/files >= 10 GB, my whole system slows down. Applications take long time to open. Even I can't type smoothly, video player starts frame drop. But everything goes normal ...
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do I still have to defrag my NTFS drive

so I know that my primary ext SSD doesn't need to be defragmented, but I have a storage HDD that is formatted as NTFS. Does this drive still need to be defragged? If so, what programs would you ...
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Ubuntu 14.04, ext4 remounts read-only 10-30 minutes after hibernate

After waking the laptop from hibernate, it successfully resumes. There are no errors in /var/log/pm-suspend.log and the filesystem is mounted read-write. After 10-30 minutes of regular use including ...
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How to recover data from a thrice formatted HDD?

So, long story short... My brother wanted to play the pc technician and went on and formatted our main computer. I had Ubuntu 14.04 LTS on a ext4 partition running there, hoping he wouldnt be so eager ...
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162 views

Cannot install Ubuntu 14.04 on new SSD - the ext4 file system creation in partition #1 (0,0,0)(sdd) failed

I'm a linux noob trying to install ubuntu 14.04 to a new 120 gb Kingston SSD. I'm aware there are other questions relating to this but I cannot find anything useful. Apologies if I have overlooked an ...
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65 views

Resize ext4 Partition to >2TB without data loss

Is it possible to resize an ext4 partition to >2TB without data loss? I added 1TB disk from a RAID 5 Hardware RAID (from 2TB usable to 3TB usable) fdisk command output: Disk /dev/sdb: 3000.5 GB, ...
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44 views

Modify size .ext4 file

I'm currently trying to modify the partition table for an embedded platform. One of the files flashed towards the platform is an .ext4 file. I can mount the file, but I can't increase it's size. ...
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61 views

How can I mount an external drive with the permission to execute programs from it?

I wanna mount my USB HDD formated as EXT4 to let say /home/user/exe where there will be executable files. when I mounted my HDD there it mounts fine but I can't run any executable file from there I ...
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Disk allocation

I installed ubuntu 15.04 and used entire space(640 GiB) for ext4 partition but now it is showing that used space = 30.91 GiB, free space = 24.96 GiB and 536.40 GiB unallocated space. I tried to extend ...
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fsck took only two seconds to report “clean”. What did I do wrong?

I booted a LiveCD (Ubuntu 14.04.2) and opened a terminal window. I used sudo lshw | more to determine that my usual boot volume was logically named /dev/sda1 . It's the primary partition on a 1 ...
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27 views

/proc/fs/jbd2/partition/history - how to enable?

I have the /proc/fs/jbd2/partition/info file that produces the summary of what happened in the partition's journal so far, but I am not able to see the history file. It doesn't exist. What should I do ...
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118 views

Cannot boot to SteamOS after upgrade to 15.04

A quick overview of my system: I have Ubuntu, Windows 8.1, and a Debian-based OS (specifically SteamOS) all installed. All of them booted just fine before yesterday. Yesterday, I upgraded to Vivid ...
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Manual Partitioning During Installation: Understanding File System Types

I am wondering if anyone can help me understand the difference(s) between the different file system types: ie. swap, ext4, reiserfs, etc... I am working with the manual partitioning during ...
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70 views

Ubuntu Server 14.04.2 LTS restarts continuously

is my first time asking here, so, congrats for the forum, is very instructive! I have an Ubuntu Server 14.04.2 LTS (64bits), and when Im working with that, I don't know exactly why, it restart again ...
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79 views

Windows 8 install turned my ext4 partition into unallocated space. How do I recover it?

The unallocated space in sda2 is supposed to be an ext4 partition with my ubuntu install in it. How do I recover this from a live CD so I can back up my data?
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Error mounting SCSI drive on Ubuntu Server 14.04

I'm trying to mount a SCSI Drive on my Ubuntu 14.04 server. To mount I entered this in the Terminal: geza@Server1:~$ sudo mount -t ext4 /dev/sdb /media/sdb mount: wrong fs type, bad option, bad ...
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102 views

Problem with EXT4 in Ubuntu 14.04

I tried to create a file system EXT4 on flash drive, and I failed. The resulting file system was not mountable. Mount gave an error. In addition, I formatted the drive in other distribution in EXT4 ...
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mounting drive remotely on server

I'm doing a school project and we've been given access to some servers, so we can build a simple Cassandra database. I need to mount a drive on each instance -- there are four instances. The ...
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How can I create an EXT4 partition with an extra large number of inodes?

About inodes In Ubuntu, each file and directory is a so-called inode. You can use df -i to check the number of inodes in use and available for all mounted filesystems. Question If you create a new ...
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Cannot write on ext4 partition Ubuntu 14.04

I formatted the disk in my computer as ext4. Now I'm trying to make it readable and writable for any user on this computer. My entries in /etc/fstab look like this # Data partitions ...
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75 views

Running ubuntu from ext4 formatted USB drive?

The "Make Startup Disk" ubuntu utility sees it as writable only if it's fat formatted. If I format it to Ext4, it sees it as 0 free space and doesn't allow to click "Make startup disk" button. ...
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195 views

Main data drive giving I/O errors

My main data drive is throwing up all sorts of weird I/O Errors: (tail of dmesg output) [ 7081.267852] sd 4:0:0:0: [sdb] Unhandled error code [ 7081.267856] sd 4:0:0:0: [sdb] Result: ...
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ext4 partition lost after windows installation.How to recover it?

My disk had two partitions one was an extended partition containing my root and swap space and the other was an ext4 partition. Recently I installed windows 8.1 on it by shrinking the ext4 partition ...
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I can't create both Swap and Ext4 partition

I installed Ubuntu using the dual boot method. My laptop is HP pavilion DV6. It has MBR on my HDD, so I'm limited to create 4 primary partitions. In Windows 8 I have used 4 primary partitions. In the ...
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Why are ext4 filesystems owned by root?

I formatted a flash drive to ext4 and created a new partition on my hard drive with fs type ext4. Both were owned by root and I had trouble writing files. Why does that happen? Also, if that has no ...
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what free percentage is good for a partition to maintain? [closed]

The use% of most my partitions (including /,/home, and two ntfs partitions shared between Windows and Ubuntu) are more than 90%. Now I plan to replace my hard drive with a bigger one, and install a ...
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179 views

how to exchange unusable space to ext4 in ubuntu 14.04 installer?

I am trying to install ubuntu 14.04 along side with windows 8 : when I try to create an ext4 partition after creating one ext4 and swap , remaining space changed to unusable how should I prevent ...
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387 views

Explanation of entries in dmesg log in Ubuntu Server 14.04

A few days ago I did a clean install of Ubuntu Server 14.04. Everything is working fine, but when my system boots I get these entries in dmesg log: [ 3.106082] EXT4-fs (dm-0): mounted filesystem ...
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236 views

Is it advisable to install Ubuntu on btrfs or ext4? [closed]

I used to install ubuntu on ext4 but I heard about btrfs. Is it advisable to use it for Ubuntu installation? What are the pros and cons?
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how to extend root (/) partition by freeing ext4 partition? [duplicate]

My root (/) partition is full and i want to extend my root file system by freeing extra memory present in other partition which is ext4. How to free some space with ext4 allocation and how to extend ...
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134 views

Unable to write to ext4, No space left on device?

After creating a folder in my ext4 partition, copying some data to it, then moving that whole folder to another drive, I became unable to add additional data to the ext4 partition when I boot into ...