The ext4 or fourth extended filesystem is a journaling file system for Linux, developed as the successor to ext3.
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Amount of data written on a partition
Is there any way to find out how much data have been written on the partition since it was created?
Talking about ext4 fs.
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setting time from ext4 superblock in embedded system
In an embedded system it seems the battery is not present/working, so I need to get around the 'Superblock last write time is in the future' warning.
The time of the system will be set back many ...
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1answer
38 views
Does copying files from NTFS to EXT4 degrade/corrupt the files?
The reason I ask is I am very new to Ubuntu, but I want to get into mobile development. I installed Ubuntu alongside windows 8 but it just doesn't run quite as well as I would expect so a friend ...
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how to access ext4 partition
i had already installed ubuntu on other partition. in installer i've chosen option "overwrite Windows 7" because i haven't got option to update the ubuntu. How do I access to ext4 partitions of the ...
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1answer
71 views
How to expand the ext4 primary partition size in a VMware Player virtual disk?
I have a VMware Player virtual machine setup, running Ubuntu 10.04 as the a guest OS.
The VM was created on a 20GB virtual drive, with a single partition for working space. Finally I got to the point ...
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1answer
32 views
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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40 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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1answer
53 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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41 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
37 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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0answers
42 views
ext4 is full but checked OK with fsck and badsector and shows plenty of free space
I need your opinion on this, any idea welcomed:
I have a PC with separated / and /home FSs.
The root fs has ext4 on sda5, Ubuntu is Precise Pangolin LTS 3.2.0-40-generic-pae.
I had a package update ...
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25 views
Recovering directory structure from accidental install of Ubuntu 12.10 on ext partition
I mistakenly installed 12.10 Desktop on my 3TB data drive I specified , and upon realizing it, I tried to recover data by looking for the old partition map--which of course was not there. However, I ...
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1answer
46 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
119 views
Cannot format USB drive to ext4
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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1answer
103 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
74 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
91 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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1answer
68 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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59 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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232 views
Messed up SuperBlock/Journal SDCARD
I had recently partitioned my SDCARD to work with my phone. Added an EXT4 and FAT32 partitions. After a power failure the data got corrupted. I can still see it but it's not the same as before. I've ...
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1answer
49 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
37 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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28 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
245 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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0answers
108 views
Recover data from NTFS partition after being formatted to ext4
I understand this is EXTREMELY unlikely, I was just wondering if someone might have a tip or two?
I have an external 500GB HDD that was formatted to NTFS and I (VERY stupidly...) left it plugged in ...
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1answer
69 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
209 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
159 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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0answers
172 views
High IO load with Dropbox (jbd2 on top of iotop)
I have Ubuntu 12.04 with Dropbox installed. Sometimes, when files are downloading (we have a huge shared Dropbox share), I get very high disk activity (HDD led almost continuously bright, with easy to ...
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40 views
Lost file .xhb with homebank in ext4. It's 0 bytes now. How to restore it?
Today I switched on my laptop and saw the LED of the HDD on for long time. It never went off. Usually it stays on while booting - around 15-20 seconds. This time the laptop didn't boot and the screen ...
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1answer
239 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
168 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
41 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
604 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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1answer
208 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
218 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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55 views
problem with disk quota
I have just a couple of users in partition /home, say, home/u1 and home/u2, mounted on a 2TB hard disk. Both users use up only about 10 GB of disk space. Quota is not enabled, in fact, when I run ...
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1answer
105 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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0answers
290 views
Ext4 vs Mounted Windows NTFS for HDD Data Storage
My system has an SSD (120 gb) and HDD (3 tb).
I am dual-booting Ubuntu 12.10 and Windows 8. Right now I only have 30 gb allocated to Ubuntu on the SSD. The rest of the SSD and HDD drive is used by ...
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1answer
123 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
371 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
119 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
172 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
423 views
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
2k 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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194 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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208 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
301 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
314 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
57 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 ...
