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

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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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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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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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2answers
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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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1answer
359 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
6k views

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
591 views

Uninstalling ubuntu + partitions [duplicate]

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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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, ...
0
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1answer
428 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
751 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
769 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
2k views

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
1k views

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 ...
2
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2answers
2k views

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
2k views

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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1answer
1k views

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
553 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! ...
3
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1answer
6k 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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330 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
4k views

How do I determine my drive format?

How do I find out what format my hard drive is in?
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2answers
1k views

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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3answers
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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
1k views

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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2answers
972 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
827 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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2answers
1k views

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 ...
4
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4answers
28k views

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
672 views

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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2answers
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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2answers
412 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 ...
4
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1answer
992 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 ...
4
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1answer
822 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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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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1answer
3k views

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
6k views

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
1k views

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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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 ...
2
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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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1answer
1k views

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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2answers
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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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2answers
349 views

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 ...
2
votes
1answer
670 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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69 views

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
357 views

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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1answer
17k views

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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0answers
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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 ...