Fedora Installation :: Ext2 Or Ext3 - Which Filesystem Should Be Used?

May 4, 2009

When installing fedora 10 from scratch on an acer aspire one 150L, which filesystem should be used? ext2 or ext3? a basic explanation of the reason would be great too.

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Ubuntu :: Filesystem Ext2 - Ext3 And Ext4 ?

Apr 30, 2010

I run an upgrade and an update on a lucid lynx beta 2. --- got no problems. but about the filesystems i have some questions because it seems for me that at every system boot the system will run an fsck. somtimes it's shown up, somtimes not. but in /var/log/messages and in syslog

I have always following messages ( occured in beta 2 too ).

But first before i continue - here my disk layout:

And here my filesystem types:

This is my problem because those values are seems to be static ! ( note: this partiton is mounted but not in use ) and last not least: the drive is an external usb scsi disk. but on the other side lucid lynx is running fine on my box.

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OpenSUSE Install :: Boot Error Because E2fsck Thinks Ext3 Filesystem Is Ext2 ?

Jan 19, 2010

During the file system check of an ext3 partition at boot I get the following output:

The super-block could not be read or does not describe a correct ext2 filesystem. If the device is still valid and it really contains an ext2 filesystem (and not swap or ufs or something else), then the superblock is corrupt, and you might try running e2fsck with an alternate super-block:

I'm then forced to login in as root and given the following prompt:

I'm reluctant to do as advised by the output and run e2fsck -b because it is not an ext2 filesystem.

Although I can still enter runlevel 5, it doesn't seem to recognise mouse and keyboard input in KDE so my system is effectively redundant at the mo. For this reason any short term workarounds are welcome, but a fix is needed. This problem is part of a longer saga to do with recovering a Windows Vista installation which started failing to boot. I have used both Vista and SUSE tools to try and recover my bootloader to no avail, and this has been the result. If more detail about this is needed please ask and I can explain what I have done.

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Ubuntu Installation :: Converting Swap Space To Ext2 Or Ext3?

Sep 1, 2011

I want to convert my swap space 8GB to usable formatHere is the output of sudo fdisk -l command$sudo fdisk -lDisk /dev/sda: 80.0 GB, 80026361856 bytes255 heads, 63 sectors/track, 9729 cylindersUnits = cylinders of 16065 * 512 = 8225280 bytesDisk identifier: 0x26af26ae

Device Boot Start End Blocks Id System
/dev/sda1 * 1 2295 18434556 7 HPFS/NTFS
/dev/sda2 2296 9728 59705572+ f W95 Ext'd (LBA)

[code]...

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Fedora :: Convert LVM Volume Formatted Ext2 To Ext3?

Nov 5, 2010

I have a question, i accidentally formatted an lvm volume as ext2 after creating it. Then of course, we copied a ton of data to it before I realized it was ext2. (I guess ext2 was the default when using mkfs without a -t) Anyway - can I just use tune2fs -j on the LVM just like I would a /dev/sdx device?

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Fedora :: Hard Disk Data Recovery Of Ext2 And Ext3

Jul 1, 2010

I am student of MCS and working on final project. I am the user of windows xp. I am new in Linux. I am working on a project that titles "Hard disk data Recovery of ext2 and ext3 in linux". In windows, including dos.h and bios.h header files in program of c language I can send interrupt to bios and access most of the devices like parallel port, hard disks etc. But problem is that there is no bios.h and dos.h files in gcc. Now how can I access my hard drive using c program. How can I call int13h interrupt in linux or there is any other function in the linux to access the hard disk. In fact I want to access sectors of my hard disk using c language program. How can I do it?

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Fedora Installation :: 'Upgrade' Filesystem Ext3 To Ext4 While Upgrading ?

Jun 11, 2009

Is that possible, I mean when I upgrade F10 to F11 with yum upgrade is there a way to 'upgrade' the filesystem to ext4 for example (with the exception of boot partition)? Or I have to reinstall fedora like new?

While changing the filesystem can I do it by parts? what I mean is for example: I have 2 partitions like '/' and '/home' with ext3, so I backup data in '/home', change '/' to ext4 then mv files from '/home' to '/' and change '/home' to ext4 and finally mv those files from '/' to '/home'. Is that possible?

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Ubuntu :: EXT2 Vs EXT3

Apr 23, 2010

I am planning on dual-booting Windows XP and Ubuntu on a new laptop, and because I have a program that lets me mount an ext2 filesystem on Windows, I was thinking of installing Ubuntu with ext2 instead of ext3. I am concerned, however, that it might open up a security risk for my Ubuntu partition. Would this cause a problem? (In case it's relevant, I use AVG Free antivirus in Windows.)

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Ubuntu :: Ext2 Or Ext3 For Usb Stick ?

Nov 5, 2010

I use 8GB USB sticks for backup of Ubuntu 10.04. I have had a variety of problems with ext3 format (security tar file not readable, etc) and have reformatted to ext2, so far without a problem.

But - am I missing something by not using ext3 (or even ext4)? Should I be sticking with ext3 and try to resolve the problems - bearing in mind that as the USB stick is my backup I need it to be secure!

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General :: Convert Ext3 To Ext2?

Mar 28, 2011

I would like to convert my /tmp and /boot partitions from Ext3 to Ext2 on my Arch Linux setup. I don't see any use in having journaling for either partition. I want to make sure that I have the right steps lined up so could someone verify that this is correct (from a live cd):

Code:
#sudo tune2fs -O ^has_journal /dev/sda7
#sudo e2fsck /dev/sda7
#sudo tune2fs -O ^has_journal /dev/sda5
#sudo e2fsck /dev/sda5
I then edit /etc/fstab to reflect these changes (ext3 to ext2 for both lines)

Does it matter what order I do it in (/dev/sda7 is /tmp and /dev/sda5 is /boot).

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Hardware :: Vertex2 SSD - ATA Timeout With Ext3 / 4 But Not Ext2?

Jun 1, 2010

I have a new Vertex2 Solid State Drive. When I try to install any distributions, formating the drive in EXT3 or EXT4 (or LUKS with EXT3, or EXT4). My hard drive times out during a copy process. (OpenSUSE 11.2 for example would crash after the 2nd file of X11. Debian got ~12% done when it crashed.)

DISTRO'S ATTEMPTED:
Ubuntu 10 - x64
Debian 5 - x64
PCLinuxOS 9 - x32
CentOS 5.4 - x64

[Code]...

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General :: /var On SD Card :: Ext2 .vs. Ext3 .vs. Jfs .vs. Jffs2?

Apr 22, 2011

We are running debian off of an SD card and want to know what's best for /var?

- Plenty of room on 2GB SD card, so do we, make /var as large as possible (everything else is read only) to reduce block overwrites, or do we make /var as small as possible, hopefully reducing the load 'pdflush' places on the 200 Mhz system?

That said, why not ext2? Is there damage that can happen in /var due to insta-crash or power loss that will prevent proper system function? We heard ext4 is more optimized, but ext4 on 2.6.29, not sure.

If we must use a journaled file system for /var, then which is lowest load on system, or "better": jfs, ext3, jffs2 ...

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Debian :: Convert Ext3 To Ext2 On A Existing System ?

Jan 24, 2011

How to convert all ext3 partitions to ext2 on a existing Lenny without damage a system?

Code:

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General :: How List The Attributes - Difference B/w Ext2 And Ext3 ?

Mar 10, 2010

What is attribute?

How list the attributes?

What is the diff b/w ext2 and ext3?

What is the types of files?

What is the drived files?

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General :: Cannot Copy File Over 16,843,020 Kb On Ext2 Or Ext3 Partition

Aug 26, 2010

i m not able to copy a file over 16 gigs on an EXT2 or EXT3 partition. Is there a way to do this. I even tried to split my iso file too. I splitted my iso file in 4 files then copy them on the ext2 or ext3 partition. But as soon as I was trying to join the files together it never went over 16 gigs. Actually it stops at 16,843,020 kb exactly. is there a limit for those partitions or is there an another way to see my 20gigs iso file in one piece?

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Ubuntu :: Locate An Ext2 Or Ext3 File System By Using The Terminal?

Nov 13, 2010

how can i locate an Ext2 or Ext3 file system by using the terminal?

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General :: Change Umask For Files Created In Ext2/ext3

Oct 28, 2009

I have ext3 partition mounted on /mnt/shared/ as follows

Code:

Permissions above are of the actual mounted fs.

Goal is to have all files created on the fs
1) to belong to group 'users'
2) to have this groups permissions set to rw (rwx for directories) so that all users who belong to group 'users' have full read/write access to data and everyone else to have only read access.

Now because of setgid bit (s) in group permissions every file created has group 'users' and additionally setgid bit is set for directories. Because every users umask by default (on my system) is set to 0022 all created files will have permissions 644 for ordinary files and 755 for directories.

Net result of above means that users A and B who both belong to group 'users' won't be able to modify files created by the other.

So how can I make files created on the fs to be created always with umask 0002 WITHOUT changing default umask for users that is used elsewhere (like in their home directory) ?

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Software :: Deleting A Filesystem (ext2)

Feb 1, 2010

is there any way to delete a filesystem?

Odd question I know and this is more out of curiosity then out of real usage.
Background:

I have a bit of a script that creates a xen image and within I check if the partition that is given contains a filesystem and if this filesystem has inodes in use. (This is all under ext2). After one run of the script which I had to abort there was a filesystem on the partition and my script refused to create a new one. Simple solution was just to create a new filesystem on the very partition and the script went on. I also thought of recreating the partition but this would not be very applicable on a running system with the partition on the same disk like root paritition.

So I'm looking for a way to delete a filesystem or at least set it's used inode number to zero.

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Server :: Mounting Ext3 File System As Ext2 On Slackware With Custom Build Kernel?

May 16, 2010

I just rebuild the kernel for slackware 13, everything works, but root file system which is ext3 is mounted as ext2. Normally I've build ext3, ext4 and so on as modules, not in the kernel... but if I do this, then the kernel mounts the file system as ext2, which is build in the kernel. I also modified rc.modules so I can make sure that ext3,ext4,jbd are loaded, but it doesnt work.

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Ubuntu :: Sh:grub - Root Mount File System Failed ... Ext2 Ext3 Ext4

Mar 27, 2010

I have dual boot system..i.e, windows XP and ubuntu 9.10(insatlled side by side). when i try to boot ubuntu, Im gettin sh:grub > prompt

[Code]...

I am getting something like this.. root mount file system failed.. ext2 ext3 ext4 ....... kernel panic message and hanged at kenelthreadhelpper+ what can i do.. I cant reinstall ubuntu again.. Because I have installed nany application there..

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Programming :: Directory Record Length Is Variable In Ext2 Filesystem?

Jan 7, 2011

The declaration for directory record length in ext2 filesystem is as follows:

Code:
#define EXT2_NAME_LEN 255
struct ext2_dir_entry_2 {
__u32 inode; /* Inode number */
__u16 rec_len; /* Directory entry length */
__u8 name_len; /* Name length */
__u8 file_type;
char name[EXT2_NAME_LEN]; /* File name */
};

Some say because the record is not in a fixed length so rec_len is the real record length. Why is the length of the array `name' not fixed? I thought C arrays like this should be fixed length. C99 has variable-length arrays, does this structure count on C99?

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Ubuntu :: Superblock Could Not Be Read Or Does Not Describe A Correct Ext2 Filesystem

Jul 12, 2010

[URL]

This problem has arrived again.......I tried the same solution but didn't work out...the problem is described below.

I use Ubuntu 9.10 .

I did this in Ubuntu 9.10 live CD.

quote from terminal :-

ubuntu@ubuntu:~$ sudo mkdir /win
ubuntu@ubuntu:~$ sudo mount /dev/sda5 /win
ubuntu@ubuntu:~$ sudo mkdir /vdisk
ubuntu@ubuntu:~$ sudo mount -o loop /win/ubuntu/disks/root.disk /vdisk

[Code]....

The superblock could not be read or does not describe a correct ext2 filesystem. If the device is valid and it really contains an ext2 filesystem (and not swap or ufs or something else), then the superblock is corrupt, and you might try running e2fsck with an alternate superblock:

e2fsck -b 8193 <device>
ubuntu@ubuntu:~$ "
> ^C
ubuntu@ubuntu:~$
^^ quote ends.

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Debian :: Recover Ext3 Filesystem ?

Nov 13, 2010

Yesterday I ran an extremely dangerous command by mistake:

Acctually I intended to dump the iso to a usb disk. Soon I found the "of" is incorrect, but 1 second has passed...

Since everything happens in 1 second, only MBR and /dev/sda1 has been affected. The filesystem of sda1 is ext3.

So, can I get any luck trying to recover data from the broken partition?

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Ubuntu :: Format Pen Drive Into An Ext3 Filesystem?

Mar 6, 2010

I was running ubuntu as a live cd and I wanted to format my pen drive into an ext3 filesystem. I put in sudo mkfs /dev/sda1, but know im thinking that sda1 was my HDD!! I removed the cd from my computer, and it wont boot up into windows anymore!The only thing that is giving me hope is that the mkfs took about 1 min to format whatever it was formatting (my pen drive or my hdd!!) and my hdd is 500gb big. Is there anyway that I could have accidentaly formatted my HDD?

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Ubuntu :: Mount Ext3 Filesystem In Windows Xp?

Dec 12, 2010

This question is about windows xp but since I rarely use it and dont care about to sign up for some xp related forums

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Hardware :: Duplicated Directory On Ext3 Filesystem?

Jul 11, 2010

I was looking in a dir I haven't used for a while (I use it for data storage) and found a directory was repeated - that is, two directories with the same name. I renamed one of them, on the assumption that one of them has a non-printing character in its name, and that worked without a problem, but ls -i lists their inodes as the same. ls -l says they both have two inodes (. and ..), and the files they contain have the same names. The inodes of the files is the same (that is, the inode of a file in dir A is the same as the file of the same name in dir B.) Each file in each dir is listed as having only one inode, but it's the same as that in the other dir.

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Slackware :: Trying To Set Filesystem Type To Ext3 In Cfdisk?

Jun 21, 2010

I've scoured the list of options for FS type in cfdisk for ext3 or ext4 to no avail. How then do I set the filesystem type for my partition to ext3?

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Fedora Installation :: Stymied Trying To Install F13 On Ext2 Partitions?

Oct 5, 2010

I'm stuck trying to install f13 on my trusty old eeepc 701 4g. It has a 4GB SSD and 32GB of usb flash memory. The plan is to replicate how I had f9 installed: / and /boot on the ssd with /usr/share and some /home/<user> data directories on the usb flash. I had a hacked f9 kernel that supported persistent usb, allowing me to suspend to ram with this arrangement. It looks like that's now built into the stock kernel. he problem I have is that the Live CD image (I've tried the stock Fedora and the XFCE spin) can't deal with installing to ext2 (only 3 and 4) and the boot.iso image flatly ignores the "lowres" and resolution=800x480" options. I can work my way through the first few screens blind, but can't deal with repartitioning.I'm sure this is a Standard Problem, but I haven't hot on the magic google search to find it all afternoon

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Debian :: What Will Be Squeeze's Default Filesystem - Ext3 Or Ext4 ?

Apr 30, 2010

I'm wondering if anyone knows what will be Squeeze's default filesystem. Will it be the proven ext3 or the newer (sometimes faster, sometimes slower) ext4?

I currently have ext4 and I have nothing to complain about. In fact, my overall experience has been very positive. Ext4 is definitely faster when fsck runs during boot.

What would be the cons of having ext4 as default in Squeeze?

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General :: View Bad Blocks On Mounted Ext3 Filesystem?

Mar 18, 2011

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 badblock inode). Now I'd like to get badblock information to know if there are any problems with the harddrive. Unfortunately, partition is used in the production system and can't be unmounted.

I see two ways to get what I want: Run badblocks in read-only mode. This will probably take a lot of time and cause unnecessary bruden on the system. Somehow extract information about badblocks from the filesystem iteself. How can I view known badblocks registered in mounted filesystem?

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