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

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NTFS vs EXT4 behavior on a HDD with a bad block

Anyone have a guess as to why a HDD, formatted to EXT3, failed showing a bad block, and when wiped and reformatted (just to test) gave errors in gparted for every file type except NTFS? The drive ...
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Mounting NFS issues - LVM - ext4

I set my ubuntu desktop up with LVM2. I don't know if that is contributing to the issue or whether I have forgotten something. When I try to mount the external filesystem with this command: sudo ...
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431 views

ext4 filesystem wrongly detected as jmicron_raid_member

I have an installation of Ubuntu 12.04 on an SSD disk that I'm unable to boot after a kernel upgrade and a reboot. Additional things that might be a possible cause is that I did some cleanup (dpkg -r) ...
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260 views

Will converting my first partition to EXT4 make me lose boot info?

I recently switched from Windows to Lubuntu as my sole OS. My filesystem now has a NTFS partition with all my data (which I now would like to convert to EXT4), a EXT4 partition with Lubuntu on it and ...
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956 views

ext4 partition ubuntu lost after Windows 7 installation

I've got this problem: I have one hdd and use ubuntu 12.10 on this hdd with several partitions(one nfts, two ext4 and one unallocated). today after windows 7 installation, and booting with live usb, ...
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How can I install Ubuntu in such a way that files are readable by both Ubuntu and Windows?

I am installing Ubuntu alongside Windows, choosing the dual-boot option. I do not want to do a Wubi installation. I want a full fledged installation. I want to share files between Windows and Ubuntu. ...
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How to mount root.disk from WUBI when booted from dual boot install of Ubuntu?

I'm running Ubuntu 12.04 LTFS. On the same disk, I have another Win7. On the NTFS Win7, I have buntu 11.04 running on a ext4 partition that was installed with Wubi. I'd like to be able to access my ...
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I need to convert ext2 filesystem to ext4 to prevent fsck every time I boot?

Installed Ubuntu 12.10 alongside manufacturer-installed Win 8 with no problems. Was "clever" enough to install as ext2 filesystem, which has resulted in the inconvenience of fsck making the usual ...
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1answer
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How to recover data from Ext4 partitions?

I've removed an old HDD from a computer and to install in another computer to use for data storage (personal files, specifically tv series episodes, not system files) and the file system that I've ...
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529 views

disable initramfs in order to accelerate boot process

I was wondering if it is possible to disable initramfs on an ext4 partition in order to reduce the time it takes Ubuntu (12.04) to boot. See source here! Instead, setting up the root device directly ...
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Difficulty mounting Ubuntu 12.10 (64-bit) on new HDD

To the gentle membership of the Ubuntu Linux Forum: After my laptop passed away a few weeks ago, I made up my mind to build n open source system. So I put together a computer for this purpose. I have ...
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1answer
795 views

Ubuntu12.10 “Disks” Pendrive 64GB format LUKS+ext4

I just bought Pendrive / Flshdrive 64GB and need to archive on it file bigger than 10GB so i believe FAT32 is not an good option since it can handle only 4GB file in size. Next thing is that i though ...
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2answers
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Why is disk usage greater than the size of all files on it?

I have a 3TB HDD. In the properties screen of the HDD, it says that I have used 471.4GB, but when I select all the files in nautilus, it says that 321.0GB is selected. If I only have 321.0GB of ...
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1answer
171 views

duplicate truecrypt drive

How would I go about duplicating a truecrypt hard drive for redundancy purposes? I have lots of original video content, which I store on encrypted drives. And wanted to know the best way to create ...
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2answers
31k views

Automount ext4 partition with user permission/ownership (fstab?) [duplicate]

I just installed Lubuntu 12.10 "Quantal Quetzal" on my Acer Aspire One D257, creating the partitions: $ df -h Filesystem Size Used Avail Use% Mounted on /dev/sda5 15G 2.1G 12G 15% / ...
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1answer
592 views

/dev/sda2 contains a filesystem with error after partitioning (updated)

I just wanted to create a separate home partition on my Ubuntu 12.10 system. I booted the liveDVD, resized the sda2 partition (28gb of data resized to 30gb based on MiB [originally on a 100gb ...
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2answers
265 views

Installed ubuntu over windows vista..cant reinstall windows [closed]

I recently used the "compress hard drive" option within windows. i got the horid "boot mngr is compressed" after the restart. i tried booting my system back to windows vista but it doesnt read the cd ...
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1answer
567 views

I accidentally permanently deleted a file, how can I recover it? [duplicate]

Possible Duplicate: How to recover deleted files? It's probably best to ask for advice on a support forum. Is it possible to recover a deleted file?
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2answers
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Copying to ntfs from ubuntu slower than ext4 - why?

Is copying to ext4 faster than copying to ntfs, because I was making new containers today on ext4 speed was 45Mb on ntfs same container size speed 14Mb, both containers where madden from ubuntu with ...
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1answer
156 views

Max file size can recover on ext4

Is there a limitation for recovering big files on ext4 like ntfs ( 4 giga max )
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undelete files on ext4

My mother has placed some important files on her /tmp per accident. Now, of course, they are gone. This happened yesterday (2 boots of the machine since) I want to try to undelete the files. They ...
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Recovering deleted ext4 Ubuntu partitions using TestDisk (None partition media table type) [closed]

All screenshot images in one album: http://imgur.com/a/gqPio#0 (updated: added deep search results) Question How do I write (recover) found partitions from [None] None partition media table ...
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1answer
262 views

Trying to copy an ext4 partition that has errors on it, to a new disk

I have a linux installation in a 50GB partition, on an old 80GB sata disk that is starting to show some errors in it's SMART status, and also, it's an old slow disk. So I want to copy it to a newer ...
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Default file system on ubuntu 12.10

Why does ubuntu 12.10 default to ext2 file system? Is ext4 not stable enough?
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856 views

Is this tactic of switching from btrfs to ext4 safe?

I've been using btrfs on Ubuntu 12.10 for both / and /home for several weeks. Through out the time I've come to the conclusion that ext4 performs better on my system and I'd like to switch back ...
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1answer
4k views

File Sharing With Ext4 Partition

I tried googling this problem but I haven't received a definitive answer. This is my situation, I have a 3TB external hard drive connected to my server via esata. I plan on sharing this drive over a ...
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66 views

How to best check my hardware (mem and HD) for errors? [duplicate]

Possible Duplicate: How can I check my RAM and harddrive for errors? Lately, I have been experiencing problems using an Apple (macbook pro 3,1 2GB ram) with Natty installed. In three ...
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1answer
387 views

full internal harddrive converted to ext4 file system..what to do install windows back again ?? plz help

hi i m a complete newbie at linux...i had a windows 7 installed in my laptop nd drive partitioned..i installed it formatting the drive as it didnt detect i had windows 7 too already...neverthlss it ...
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1answer
218 views

High CPU load for 1:30 minutes when mounting ext4-raid partition

--> The problem solved itself <-- Sometime between November 2012 and January 2013 one of the Ubuntu updates made the time the mount command takes to complete go down to ~1 second again: time ...
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How to convert ext2 to ext4?

I installed Ubuntu 12.10, and I don't know why, I have an ext2 partition. How can I convert this ext2 file system to an ext4? Will I lose all my data?
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1answer
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Is SSD TRIM support still automatic in 12.10?

Folks I had automatic TRIM working on my laptop running Ubuntu Precise. As in the TRIM guide I added discard to mount options in /etc/fstab, and hdparm --read-sector read 0s immediately after a rm ...
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348 views

How to create a common ext4 [ read / write ] partition with all ubuntu users?

I have a shared EXT4 drive with 777 permissions for all users to use. Problem is : When a user creates a new folder / file, it gets 644. I guess that is because of the umask for that user. Now, I ...
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1answer
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Repair ext4 filesystem on USB drive [closed]

Yet another filesystem question. I wanted to use a USB drive that I hadn't mounted for a month or so and was surprised by the fact Ubuntu was unable to mount it. I looked it up in the disk utility and ...
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1answer
581 views

Uninstalling ubuntu + partitions

I have Ubuntu 12.04 installed onto my dual-boot system; how can I uninstall it? Which partition(s) should I delete? As you can see, I have two used/Full up 'Other' partitions and one ext4 ...
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4answers
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Mounting ddrescue image after recovery (in over my head)

I'm having problems mounting the recovery image. I've tried to mount the image multiple ways. quark@DS9 ~ $ sudo mount -t ext4 /media/jump1/1recover/sdb1.img /mnt mount: wrong fs type, bad option, ...
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1answer
390 views

Writable permission is not writable

I am running Ubuntu 12.04 x64 server on ext4 partition. I set a directory's permission to '766' as below. sudo chmod 766 /archive drwxrw-rw- 3 root root 4096 Sep 27 10:50 archive/ But, when I ...
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1answer
710 views

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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1answer
712 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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1answer
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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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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! ...
2
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1answer
5k views

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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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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How do I determine my drive format?

How do I find out what format my hard drive is in?
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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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2answers
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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 ...