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

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Root filesystem not mounted

The problem occurred after I powered off my 10-year-old Ubuntu 10.04 Compaq PC while booting. Now all I get is the initramfs prompt and an error on mounting the root file system. Below is the output ...
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757 views

EXT4 Ideal Size?

I have 1TB HDD and I will use ubuntu and won't use dual boot with windows, any tips about partitions' size and how many partitions, can I have just 2 partitions? The second question is about swap ...
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laptop crashed: why? [closed]

my linux (ubuntu 12.04) laptop crashed, and I am trying to figure out why. # last sds pts/4 :0 Tue Sep 4 10:01 still logged in sds pts/3 :0 ...
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2answers
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Ubiquity installer hangs after “Prepearing to install…”

I have tried this on a brand new latest Xubuntu disk, and then on an old regular Ubuntu 10.10 disk. Both result in the same thing (and I would prefer to use Xubuntu, if possible.) I have tried ...
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2answers
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Can I format my Windows 7 NTFS partition and use it in Ubuntu even if it appears earlier on disk?

I have installed and working Windows 7 and Ubuntu 12.04. I discovered that I do not need all this space that I have assigned to my D:\ drive in Windows and now would like to include it as a partition ...
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2answers
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How to make a drive NTFS from EXT4?

I want to know how to make a drive ( non-system ) from EXT4 to NTFS. Can anyone help me out?
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simple alternative to ext2fsd?

I have been using ext2fsd on a few occasions to print ext4 ubuntu files from Windows 7. I found the program to be somewhat unpolished with respect to simplicity, intuitiveness and the user interface. ...
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2answers
549 views

Formatting a 1T storage drive ext4 how much should i leave free to avoid problems?

While browsing the net about formatting my 1T hard drive as ext4, I read about people completely filling their drive and being unable to mount. How much can I fill it to safely? Even 95% wastes 50 GB! ...
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1answer
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When cloning ext4 partition with the “dd” command to a bigger partition free space doesn't increase [duplicate]

Possible Duplicate: Drive reporting incorrect free space Recently I've been trying to clone my hd using dd tool. Everything was ok, as cloning ntfs partitions but when it comes to ext4 - dd ...
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328 views

Permissions to access an encrypted external HDD

I have an external HDD which has an encrypted ext4 filesystem. When I plug it into one of my laptops and provide the encryption password, I get this popup box saying: You do not have permissions ...
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3answers
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How do I determine my drive format?

How do I find out what format my hard drive is in?
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2answers
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FDISK Logical Partition

I have tried to create a logical partition via Fdisk for a flash drive. The problem is that I choose the option -n to create a partition, of course , and fdisk gives me only two options "extended and ...
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Why do I get more free space than ext4 after formatting in XFS?

I've bought a 1TB external hard drive and after formatting the entire drive in ext4 Nautilus says there are 934.3 GB of free space. I've also tested formatting the drive in XFS, and in this case ...
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How to resize an ext4 encrypted home partition?

Which is the best way in order to resize an encrypted (ecryptfs) ext4 home partition ? Pros nad Cons of each method are greatly appreciated. $ fdisk -l Disk /dev/sda: 256.1 GB, 256060514304 bytes ...
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959 views

Optimizing EXT4 performance

I'm using my machine to build stuff a lot and there's a specific directory that gets used very often. I've got 8GB of RAM, which is helpful for the build, but is far from enough to cache the whole ...
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2answers
821 views

Recover EXT4 Partition from Interrupted Resize

world! [that's funny, it automatically takes out leading "hello"s] I'm installing Ubuntu on a friend's laptop, and I encountered a problem while resizing the Ubuntu partition. I was expanding it to ...
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How to mount ext4 partition?

How do I mount an ext4 partition as my user account so I wouldn't require root access to r/w on it? I used -o uid=flint,gid=flint on the mount command but I keep getting mount: wrong fs type, bad ...
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Convert existing internal hard disk into network attached storage

How can I setup an internal 3.5" SATA hard disk, with existing data on an ext4 partition, so that I am able to access the data on WLAN? What product should I be looking for to turn the bare drive ...
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4answers
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How to set permissions so that I can read and write to another partition?

I m using Ubuntu 12.04 and i have to partitions part1 and part2, both are ext4. I want to transfer media files to and from them freely through programs.
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1answer
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Restore Encrypted /home partition

I need to recover my lost data. Tonight I reinstalled ubuntu without formatting /home, thinking that ubuntu was enought smart to install itself without wiping the previous data in directory like ...
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1k views

Android phone: how do I play MP3s on my hard drive over WiFi?

Wasn't sure whether to ask on here on on android.stackexchange.com ... but I want to play music which is on my desktop machine through my phone. The music is coming from ext4 partition which I am ...
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1answer
41 views

Ubuntu crashed unexpectedly when browsing

How can I boot to Live CD and then access Ext4 partitions.
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5answers
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Moving 11.10 complete system to a new bigger Harddisk

I would like to move my current installation of Ubuntu 11.10 to a bigger harddisk, since the old one is failing. I would like to avoid solutions like dd block copying (since there would be unused ...
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403 views

Journaling Backup

Is there any software that takes journaled backups for Ubuntu? I'm currently using the built-in deja-dup, which is great. However, it backs up at most once every 24 hours (daily). Is there any way ...
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979 views

How to make ext3 converted to ext4 support e4defrag?

I have two ext3 filesystems that are very old and have been 99% full for a long time, leading to fragmentation. Also, they've been used for running VMs with dynamic disk images and other ...
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809 views

Copy/Backup ext4 files to external ntfs hdd: Permissions etc

Normally I backup my files (from ext4 drive) to an external ext4 hdd. Now I want to copy/backup some files to an external ntfs hdd, so I have the possibility to access them from Windows, too. Is ...
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319 views

I can't copy any file to ext4 partition! [closed]

I converted on of my NTFS partition to EXT4 format with GParted tool, But now I can not copy create any files to that partition, also on start up I have error reading of one partition so I have to ...
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How long does an ext4 format take?

The USB cable on my Iomega Prestige 1TB hard drive conked out a while back, and I've finally managed to get a new one. I removed the old NTFS file system because I use Windows maybe once a month, and ...
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5answers
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Move ext4 partition

I have an ext4 partition at the end of an hard drive, and want to resize it to the full disk size (the rest of the disk is empty). It's not the root partition, just a data partition, so it's no ...
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1answer
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Can't access an ext4 partition in a external HD

I have a 1TB external HD that I partitioned into a FAT32 partition and an ext4 partition. Apparently the file system of the ext4 is damaged and I cannot access it. The disk utility on the drive looks ...
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278 views

Stuck on 12.04 install [closed]

brand new HP box -- installing from cd that is a good burn, have tried several times. I am stuck at "creating ext4file system for / in partition #3" Been here for 25 minutes? Normal on a new ...
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6answers
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XFS or ext4 on external hard drive

I have an external hard drive on which i want to make a backup of my files. Which file system between XFS and ext4 will be the fastest to write data on the hard drive?
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Formating NTFS partition into EXT4 and setting up as home

I have 750gb drive and i have 3 partitions on it (i am not counting swap.) One is for Ubuntu. Second is for Arch, and third is in NTFS format (i have that partition since i was on windows and nope i ...
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New ext4 partition and used space

I have fresh ext4 partition, which means I just formated it with mkfs.ext4 -m 0.1 /dev/mapper/abak-home, and there's already 27G space used. Setting reserved root space (-m) to 0 didn't have any ...
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ext4 hogs lot of unkown space compared to ext3

Ext4 FS has claimed 3% of partition space. Where has this gone and can I get it reclaimed? I have tried disabling Journals for the ext4 partition. Even this is not helping. Any other tricks I can try ...
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1answer
664 views

What filesystem should I use for a Seagate Momentus XT Hybrid ST750LX003?

I am considering upgrading my regular HDD hard drive on my laptop by the SSD/HDD Seagate Momentus XT Hybrid ST750LX003 hard drive, and I was wondering if I should take any particular consideration in ...
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How to view ubuntu files from windows? [duplicate]

Possible Duplicate: How to read ext4 and btrfs partitions in Windows? How to view ubuntu files from windows. If i cant access ubuntu(it crashed badly). Files are important! Please help !
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1answer
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bind (hardlink) one directory to many places

I need to "bind" one directory to many chrooted places. I know that I can do "mount -o bind", but this requires special processing on startup each time (run the mount). Is there a way to do it on ...
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How do I enable extended attributes on ext4?

I want to play around with Ceph and it needs extended attributes enabled. How do I mount my filesystem with this support?
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How can I mount a shared partition with nobody.nogroup? [closed]

I've successfully shared a dedicated partition using samba, setting new files & directories ownership to nobody.nogroup. How can I edit fstab to make the local user work with the partition using ...
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1answer
6k views

Disks constantly spinning no matter what I do (jbd2). I'm on the brink of insanity

My disks have been spinning for months. It started with Ubuntu 11.10, and continues with 12.04. I can't figure out how to stop it. I've looked at various folks suggestions online about ext4 commit ...
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1answer
805 views

(No Root File System)-ergo no install 12.04

I have my HDD 1Tb partitioned with fs ext4. Previously I was booting from the 2TB Hard Drive...I disconnected that. Now I want a clean install 12.04 but cannot figure out "Root File System" ("/") ...
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1answer
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ext4 jbd2 journaling active even on empty filesystem

I have been having several issues with my ext4 file-systems that seem to be due to jbd2 journaling. I made a related post here and am rephrasing it with the hope that someone may be able to help. For ...
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Share Ext4 Partition Over Network

I have an Ext4 partition (not auto-mounted) that I would like to share (entirely) in my home that contains Mac OSX, Windows and Linux machines (currently the most important is sharing with the Mac). ...
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How to overwrite Ubuntu with Windows 7? [closed]

So I have a Windows DVD and it works. But when it gets to the part when it says "Upgrade" or "Custom" I click on custom and at the bottom it says cannot install over it because Windows 7 can only be ...
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4answers
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rsync not working between NTFS/FAT and EXT

I have music that I play in my car, from an FAT32 USB stick. The folder which I use to put songs on is stored on my EXT4 hard drive. I add/remove/retag songs regularly and occassionally want to ...
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2answers
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Arbitrary EXT4-fs remounts scattered throughout dmesg output

I've been trying to diagnose a message I see in my dmesg output. Last night I was watching a video which really taxed my notebook and I noticed that the computer was super hot and the fan wouldn't ...
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2answers
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Utility for resizing partitions

Is there a partition utility in Ubuntu from which I can break my existing 'ext4' partition into more partition w/o loosing this partition's data?
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1answer
456 views

How do I change the size of an ext4 partition? [duplicate]

Possible Duplicate: Resize partition with GParted I upgraded the hdd in my FOG server (Ubuntu 11.4) to 500gb but I can't find a simple way to enlarge the partition to take up the empty ...
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Vanished partition recovered, disk still half full but no data to be found! [closed]

I recently had a hard drive partition vanish on me while moving the drive from one machine to another. In an attempt to fix the problem I took it out of my Ubuntu box and put it in a Windows machine ...