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

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Resize ext4 /home partition from start sector

I need to resize my ext4 /home partition to make space to my boot partition before it. The thing is to do so I need to change the start sector of my home partition (the boot partition is extended on ...
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1answer
206 views

Ubuntu and fat partition, why and can I change it?

I have a mac from 2006 and it is already not supported by new Apple system. So I did get back to Linux and I did chose Ubuntu 13.04. I did install Ubuntu side by side with OSX, but I did notice that ...
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305 views

ntfsresize -b -f not working chkdsk /r freezing

I've got a failing hard drive. Don't have the funds atm to buy a new hard drive. So I need to hold up. My main operating system is now ubuntu which is able to run the hard drive fine without any ...
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2answers
2k views

How to backup Ubuntu partition via Windows?

I wanted to make a backup of my Ubuntu (12.04) partition before upgrading to 13.04, but I've come up against a snag. None of the tools I can find can make an image of the currently-mounted drive - ...
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2answers
789 views

Hide ubuntu partition in win7 [closed]

I was searching forum but I didn't find solution to my problem. I've installed Ubuntu 13.04 and Win7 on one HDD in UEFI mode. I'm able to boot in both OS'es separately from grub (added some entries). ...
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1answer
229 views

Hard Disk Formatting Error

so here is the situation.. I installed Ubuntu, pretty sweet.... all was going well till i tried to install an application " LPCXpresso IDE for ARM micro controllers" now the PC hung up as soon as the ...
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1answer
579 views

Cannot format USB drive to ext4 [duplicate]

i'm trying to format USB drive (some noname 32GB) to EXT4. It always hangs on step writing superblocks ... and always stops writing numbers after it reach to 125/256. I'm use command mkfs.ext4 ...
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1k views

How to shrink an ext4 /home partition without using a LiveCD and losing data?

I need to shrink an ext4 /home partition (/dev/sda9) to make space for something else. I would prefer avoid live CDs (boot troubles with new EFI and. I don't have a CD/USB in hand in the office). I ...
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1answer
506 views

How do I fix my broken/damaged Kubuntu installation?

(I am dual booting Windows 8 and Kubuntu.) I've been having a lot of fun with Kubuntu. I've done a lot with it, including installing GNOME desktop, just to try it out. One day I was in Steam and I ...
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3answers
3k views

Is it possible to unmount the /home partition?

I want to recover some files in my home directory using extundelete http://sourceforge.net/projects/extundelete/ This tool needs to unmount the device before start to work, but I cannot umount ...
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238 views

What algorithm is used by Disk Utility encryption?

What encryption algorithm is used by the partition encryption function of Disk Utility?
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1answer
263 views

fsck on ext4 resulted in file corruption

I had to hard reboot my machine and I had a file system corruption. I have tried to run fsck on the partition from live CD. However my partition is ext4 and I understand that fsck defaults to ext2 ...
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1answer
260 views

Where are drivers located for rEFInd?

I am planning to recompile my kernel with EFI Stub support, but currently my Ubuntu installation's partition is formatted with ext4fs. I have the rEFInd ext4fs driver (ext4_x86.efi) in the refind-bin ...
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1answer
134 views

Why aren't my drives fscking [duplicate]

I logged on to my Ubuntu server and the message of the day contained these wonderful messages: *** /dev/sda1 will be checked for errors at next reboot *** *** /dev/sda6 will be checked for errors at ...
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0answers
191 views

Install a software throe wine on ntfs partition

I have a question I want to install windows software, but I do not have enough space on ext4 partition, so if I install the software on ntfs directory will the software run as it would run on ext/home ...
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1answer
11k views

Can I disable updatedb.mlocate?

On ubuntu server here and I'm trying to unpack 300M image files from a compressed file format using Java. My unpack rate is 0.5Mbytes/sec, abysmal (34 days to unpack 1.5TB at this rate). I'm trying ...
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1answer
191 views

Changed Partition from NTFS to EXT4 and owner is set to root

I just changed the file-system of one of my partitions to be able to install games from steam on it. It is now ext4 and Owner is set to root, I can not create any folders there or do anything with it. ...
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1answer
9k views

Is it safe to defrag ext4 file system using e4defrag?

My file system partition is 90GB, and now 75% of the space is free after removing 53GB of recovered files using photorec from my home directory. I just want to know, is it safe to defrag the whole ...
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1answer
1k views

File recovery after reformattig ext3/4 partition — extract old journal/superblock?

I seem to have reformatted my /home partition (previously ext4) as ext3 during an Ubuntu installation. It took me a couple of mounts to figure that out. Which, of course, is a bad thing. I've tried ...
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2answers
2k views

My NTFS and ext4 partition mounts as read only

After upgrading some packets (that I don't know what), my ext4 partitions are mounted as read only: m@mpc ~ $ sudo mount /dev/sda5 /mnt mount: warning: /mnt seems to be mounted read-only. My NTFS ...
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2answers
2k views

ext4 to btrfs conversion: how long can it take? space requirements?

I started btrfs-convert for my ext4 partitioned hdd. I did a fsck first which was fine. So since it is running over 4 hours now (1.) I wonder if it will ever finish ? I read multiple articles ...
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1answer
1k views

Installing Ubuntu 12.04 LST along windows without formatting any drive

I am facing a problem while installing ubuntu along with win8. The specs about my pc are following: 500 GB HDD (c:100, d:100, f:50, g:100 h:100 i:50) and every drive has important data, and are NTFS ...
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1answer
74 views

Does ubuntu one synchronize extended file attributes?

Ext3 and 4 filesystems, if mounted with that option, support extended file attributes with which you can add metadata to your files: author, ACLs, and actually whatever you want. Does Ubuntu One ...
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2answers
18k views

How could I mount an ext4 partition and have write permission?

I've set the /etc/fstab file so that I can mount an ext4 partition on startup and I did it with the following options : rw, auto, nouser, exec, sync. The problem is that I can't create or delete any ...
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436 views

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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1answer
2k views

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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1answer
561 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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1answer
271 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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1answer
1k 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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2answers
185 views

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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1answer
1k views

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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1answer
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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
17k views

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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265 views

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
886 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
4k views

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
205 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
36k 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
660 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
274 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 ...
0
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1answer
668 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
2k views

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
177 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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3answers
14k views

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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0answers
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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
285 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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1answer
5k views

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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1answer
877 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
5k 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 ...
2
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0answers
68 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 ...