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

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How do I format a drive as EXT4 on Windows 7?

I'm trying to create an ext4 file system on an external drive. The partition manager I usually use, EASEUS Partition Master, doesn't support ext4. What are some free alternatives? Edit: It turns out ...
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Why are the sizes of 2 directories different if the data within the directories is identical? They are identical ext4 partitions and disks

root@phoenix:~# ls -ld /backups/external?/var/subsonic/thumbs/110 drwxr-xr-x 2 root root 73728 Mar 4 15:35 /backups/external3/var/subsonic/thumbs/110 drwxr-xr-x 2 root root 69632 Mar 4 15:35 ...
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300 views

Ext4 forensic analysis

I'm doing a thesis about forensic analysis and I'd like to format a disk with an ext4 file system without zeroing it, to analyze the possibility to recover deleted files. This is a problem, because ...
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parted killed my ext4 stuff

In parted you're supposed to be able to delete a partition, make a new one, and your data will still be there. It's gone. Nothing, not even testdisk is finding the partition. If I do the same stuff ...
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486 views

Booting an EXT4 image file from GRUB2

My friend needed a fast HDD so I gave her my small 64GB SDD. This SSD had my Linux install on it. I used dd to make an image of the partition (boot, root and home on one partition). This partition is ...
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Unable to repair an ext4 filesystem with bad superblock

Using the dd command, I was hoping that I would be able to copy over the first 446 bytes from Disk B (250GB) to Disk A (80GB), in order to make Disk A bootable just like Disk B. I issued the command: ...
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Drive system file size

When i made a new drive it take some space for system file FAT32 take the less space, then NTFS, then ext4 my question how to know the space will be taken for the system before make the drive, if the ...
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Mounting external usb harddisk (ext4) in virtual box in windows

I would like to mount my external linux formatted usb harddrive in a virtual machine. The host is windows 7. Unfortunately virtual box doesn't enumerate the external harddrive in the options menu of ...
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69 views

Is it possible to fork a symlink?

I have my configuration file (e.g. .zshrc) put into an encfs container. When I log into the system the container is not yet mounted, hence the the symlink is dangling then. Is there a way to let the ...
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how to convert NTFS to ext4 in windows?

I want to convert one partition of my windows which is NTFS (or can be FAT32) to a linux file system partitioning? I'm looking for some tools or ways to do it for me!
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linux change ext4 block size to 8192 now can't mount it

I've done that: mkfs.ext4 -j -b 8192 /dev/sda3 Now I'm trying to mount it with: sudo mount -t ext4 /dev/sda3 foo But I'm getting this error: mount: wrong fs type, bad option, bad superblock on ...
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using setfacl to give access to another user without giving access to a group

I have a user that I use for backup, and I use setfacl to give that user access to files. However, setfacl changes the base ACL entry for group and some applications require that the base ACL entry ...
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How can I get access to EXT2, EX3 and EXT4 partitions on Windows 7?

I tried all programs recommended to mount Linux partitions like EXT2 or EXT3 or even EXT4 but no one can do well on Windows 7 32 bit. I want to access read-write, is there a program that can do this? ...
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1answer
336 views

Recovering ext4 data after accidental partial re-image?

I had a CD that automatically starts to image a system with windows XP/NTFS. Accidentally booted from it on a Linux system which has one large ext4 partition (500GB). Interrupted the imaging process ...
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Linux file system for a big file server

I would like to know, from more experienced people, what would be the best choice of file system to use for a file server having more than 20TB of hard disks. Personally I always used EXT3 (back in ...
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Kernel log littered with re-mount attempts because of going to/from battery mode. How do i turn it off?

My boot times became a bit too much so i decided to take a look ad kernel log to see what might be causing the problem.. There i noticed repeating: 12/17/11 02:25:28 PM EXT4-fs (sda6) ...
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Data recovery after sudo rm -rf /* on ext4

I sent the following command to my friend: sudo rm -rf /* He launched it. Does someone know how to recover data after deleting from ext4 on Ubuntu 10.10?
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Strange file permissions on FAT32 under Ubuntu

On my machine (Lenovo ThinkPad w510, Ubuntu 10.10) I have (at least) two logical partitions: an ext4 partition to which Ubuntu is installed; a FAT32 partition (the bigger one) on which I store all ...
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Recovering data from two partitions, one NTFS, the other ext4

I have an external HD, and it had three partitions on it. One was a 4GB ext4 filesystem ,and two others 120GB NTFS and 120 GB ext4. I created an image on the 4GB using the Linux utility dd on Fedora ...
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SSD: NTFS vs EXT4

Always when I read about SSD usage under Linux, the advice is to disable journalling in Ext4 (or use Ext2), since it's too bad for your SSD. But in all articles about SSD tweaks for Windows, I never ...
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458 views

Does stat/lstat on nonexistent file cause a disk seek?

When searching for a library file from a right folder, my application currently does couple of lstat's for the possible locationslocations. Now I'm wondering whether these lstat's (application is ...
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sharing an ext3/ext4 partition on external drive

is there a way of sharing an ext3/ext4 formatted partition on an external USB drive between different users (uids) on different Linux machines without creating a group for this purpose, setting the ...
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798 views

unable to mount lvm ext4 filesystem

I was moving a couple of physical volumes from my lvm. I managed to successfully pvmove and pvremove them. After this i was moving some files from the lvm to one of the removed pvs. Now during this my ...
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Recover data from repartitioned EXT4 filesystem

On my drive I had 2 partitions for an Ubuntu 9.04 (swap, /) and one partition for Windows. I figured out that I should upgrade my Ubuntu, so I deleted the "/" partition and in its place created 2 new ...
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373 views

Recommendations for Filesystem

I have built the bones of a NAS system (which comprises of Ubuntu server 11.04 on 500GB SATA drive, and 3 2TB SATA disks in software RAID5 configuration)... I'm looking for some advice on what ...
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Does an ext4 writer for Windows exist?

Are there any applications that can write to ext4 file systems from Windows?
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Command: How to format Ext2/Ext3 with Cygwin? [duplicate]

Possible Duplicate: How to format Ext2 in WinXP? I just installed Cygwin, then i want to format my usb drive to Ext2/3/4 or any other Linux FS. What do i need? And, what is the command?
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How do I prevent external systems from mounting my ext4 partition?

I have an ext4 partition which I use as my home partition. I noticed that by running another Linux system either from the disk or even from LiveCD I am able to mount and inspect the contents of said ...
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Stuck choosing between ext4 and ext3 for the file system

I was in the process of installing Ubuntu 11.10, but got stuck choosing which file system to use. ext3 and ext4; which is better for a personal desktop? If ext4 is better, will it work well on my ...
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How do you make NTFS living with ext4 safe for windows to mount

Hi I want to partition a hard drive with NTFS and ext3. I was going to partition the drive all with primary partitions (don't need 5+ parts) in windows XP then change the last partitions to 83/Linux ...
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773 views

ext2explore for windows doesn't read ext3/4 sparse files what does?

I have some sparse files that I want to read/copy to windows but I can't find a FS reader that works any suggestions? EDIT: to clarify the sparse files are living on an ext3 partition it's this ...
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Is ext4 more expensive than ntfs?

I have just converted an NTFS partition to ext4, however the total space seems reduced from 421G to 415G. Where did the 6G go? And, the reserved space is grown to 199M in ext4, much larger compared to ...
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resize2fs seems stuck at pass 3 (scanning inode table) - what to do?

I have a machine running Arch Linux (2010, I believe) with a 6TB RAID-5 array hooked up to a Highpoint RocketRaid 2320. I've been having issues with the RAID controller's drivers and the latest Linux ...
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2answers
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Filesystem config for 4k sector drive that reports 512 byte sectors [duplicate]

Possible Duplicate: Western Digital Green drive from 512 byte sectors (jumpered) to 4k byte sectors (removal of jumper) I have just purchased two Western Digital WD20EARS disks and ...
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Mount ext4 partition with >4KiB block size

I'm attempting to mount a partition from a NAS and the block size is 65536 bytes, this is above my distribution's precompiled kernel memory paging size of 4KiB, so I cannot mount it normally. Which ...
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Online, “Smart” Partition Manager with Full Ext4 Support?

Is there any partition manager for Windows that can manage (resize, move, etc.) ext4 partitions? Caveats: Resize must be smart when resizing from the beginning of the partition. Many partition ...
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Disk formatting issue on Linux [duplicate]

Possible Duplicate: Free Data recovery tool for linux? my dad formatted a 204GB disk and it's now showing as "Unknown" 199GB partition with 4.7GB extended partition and 4.7GB swap space ...
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Recover ext4 filenames

I have a corrupted ext4 file system that had ~7 TiB of data on it. Using photorec, I was able to recover usable data, but all the filenames are gone. Is there a tool that would let me recover the ...
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script to convert ext4 filenames to ntfs

ext4 allows certain chars in filenames which ntfs doesn't. Is there a script to replace those chars in filenames?
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Recovering files from a failed ext4 partition resize

I didn't know a resize operation on a 750 GB disk was going to take 40+ hours, and I was biting my nails the whole time, until the power went out when "only" 8 hours where left... I can still mount ...
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Is fsck for ext4 available for 64-bit systems?

First, I'd like to thank James T & ct64116 for their help on my first question; I accidentally overwrote an ext4 partition with the Windows 7 installer and lost something like 300Gb of files. I ...
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Multiple partitions for an external USB hard drive used by Linux and Windows

I want to split a large external USB hard drive into at least 2 partitions. I've heard that multiple partitions on a USB drive involves problems not associated with partitioning a regular IDE/SATA ...
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are there any drawback for using NTFS for linux?

I use linux for work (perform c++ calculations, latex) and I use windows for entertainment (dj software, tablet functionality). I'd like to access (read and write) to my linux partition from windows. ...
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1answer
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Identical hard drives with different sizes (formatting)

I have two hard drives, which are identical, same model though purchased at different times, but in all respects the same. Afaik the manufacturer hasn't changed capacity (Seagate expansion). However, ...
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741 views

What filesystem should I use for a large amount of disk space in Linux (>32TB)?

I am trying to make a large file system in linux, but have run into problems with many of the common file systems. JFS has a bug that does not allow expansion over 32TB. XFS has a bug in the fsck ...
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Encryption, loop device and journaling file system on Linux

I've been reading up on tools like Truecrypt, loop-AES and Cryptoloop that use a "loop device" to create an encrypted disk volume within a file. On the README page for loop-AES, it has this paragraph ...
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View bad blocks on mounted ext2/ext3/ext4 filesystem

I've ran fsck -c on the (unmounted) partition in question a while ago. The process was unattended and results were not stored anywhere (except the bad block inode). Now I'd like to get bad block ...
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Why is an Ext4 disk check so much faster than NTFS?

I had a situation today where I restarted my computer and it said I needed to check the disk for consistancy. About 10 minutes later (at "1%" complete), I gave up and decided to let it run when I go ...
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Ubuntu doesn't start, how to repair its ext4 system-partition?

My netbook crashed while booting Ubuntu (I accidently removed a usb stick while booting) and now doesnt start anymore. It gives the following error and goes into an ash (BusyBox built-in) shell: ...
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Is there any way to restore EXT4 partition

Is there any way to restore ext4 partition after formatting the entire hard disk then making two partitions of NTFS