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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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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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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Jan 4, 2010
I have two ext3 partitions within an encrypted lvm2 volume. when i start up my system it says that there are 0.3% non contiguous blocks.
This is my steup:
When i want to repair with repair system from dvd it tells me that the repair and check operation for encrypted LVM devices is not supported. so how can i fix my filesystem?
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Nov 23, 2009
Upgraded from 11.1 to 11.2 using GUI (YaST and Wagon)
Machine stops on boot and says:
fsck failed. Please repair manually and reboot. The root file system is currently mounted read-only. To remount it read-write do: bash# mount -n -o remount, rw /
Attention: Only CONTROL-D will reboot the system in this maintenance mode. shutdown or reboot will not work.
Give root password for login:
I write: mount -n -o remount,rw /
And then reboot with CONTROL-D.
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May 18, 2011
I am very new to linux, and I have a question regarding the filesystem check (fsck). The power recently went out and when I tried to restart linux the following error appears:
*/dev/sda1 contains file system w/errors, check forced it then goes on to say..
*An error occured during the file system check. Dropping you to a shell; the system will reboot when you leave the shell. Give root password for maintenance (or type Control-D to continue) I wasn't sure what to do, but checked some other online forums and they suggested running fsck manually - so I typed in the root password - and used the command, "fsck -A -V ; echo == $? ==" it then gave the following message
*WARNING!!! Running e2fsck on a mounted filesystem may cause SEVERE filesystem damage
*Would you like to continue (y/n)
Again, I wasn't sure what to do so i just checked no. I then manually turned off the computer and was prompted at the beginning to press Alt-3. I was brought to another screen and it informed me one of the drives was degraded and suggested rebuilding the array. I tried doing this, but it still brings me back to the original error of, "/dev/sda1 contains file system w/errors, check forced," and the process continues.
Also, when I tried to rebuild the array, I didn't backup any of the data on our home directory before doing this (which was probably a big mistake). After being prompted to type the root password, I was able to give the ls command and look at all the directories...the home directory where our data was stored was empty and I am afraid I may have lost some information. Is there a possibility that data was lost when I was trying to rebuild using the old drives?
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Jul 30, 2010
I had left a small windows partition for some programs like MS Office, (I'd failed to install it with wine :-( ) so I was dual booting OpenSUSE 11.3 & Vista. When I decided to replace Vista with Win 7, the grub was missing, I formated the Vista partition, then tried to boot into SUSE before installing win 7. there was some command line, that i tried the instructions I had found on the forums so I typed
grub
find /boot/grub/menu.lst
and I got (hd0,1) so I
root (hd0,1)
[code]....
I got an error about missing (hd0,1), when I pressed enter I got a menu not the one I was used to. When I chose to boot OpenSUSE 11.2 or the failsafe I got error 17 "cannot mount partition" so found a bit of assistance from the following page: How to fix GRUB after Windows breaks it, and how to edit the GRUB menu - Super User when I press "e" and change root (hd0,1) to (hd0,2) then boot by pressing b, I get the usual SUSE boot screen, then the bootup process stops with some text displayed on the screen. there was a lot of text but the following is what I jotted down: the superblock could not be read or does not describe a correct ext2.
superblock corrupt e2fsck with an alternative superblock
e2fsck -b 8193
fsck failed. Mounting root device read-only
[code].....
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Mar 24, 2010
I've had a look at some similar threads but as I'm very new to linux they're already a bit technical for me. Sorry, this calls for someone with patience. I gather from other threads that disconnecting an external drive without unmounting is a no-no, and this seems to be the likely cause. Now the disk is read only and I'm unable to change any settings through the usual control panel on ubuntu. I'm just not familiar with the terminal instructions. I tried to cut and past a few command lines from other threads but I got some warnings that proceding could damage data. Like this one: WARNING! Running e2fsck on a mounted filesystem may cause SEVERE filesystem damage.
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Apr 12, 2010
After upgrading from opensuse 11.1 to 11.2 I get the following error messages while booting the system caused by the initial filesystem check routines:
ERROR: Couldn't open /dev/null (Too many open files)
ext2fs_check_if_mount: Too many open files while determining whether ... is mounted.
fsck.ext3: Too many open files while trying to open ...
I found a new version of the e2fsprogs at the OBS package claiming to fix this problem. But installing this new version did not solve my problem.
Here some information about the affected system:
Operating System:openSUSE 11.2 (i586)
Installed e2fsprogs:e2fsprogs-1.41.11-4.1.i586
Number of LVs:35 (all ext3)
I can only boot if I comment out some of the filesystems in my /etc/fstab. It seems that the number of filesystems must be less or equal 32.
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Jul 2, 2010
I just got a new hard disk so that my "/" and "/home" partitions would be located at their own separate drives. All was well until i tried to expand my "/home" partition to fill up the entire drive that used to also have the "/" and swap partitions on there. Let me sketch the before-and-after scenario in GParted,
Before:
What actually happened after:
Gparted gave an error prompt after which i found out that the entire ext3 partition (/home) had been moved to the left but not yet expanded to the right, which is of course not a problem. However, for some reason it has labelled the entire ext3 partition as a swap partition!
I'm still running ubuntu from the usb flash drive, because i dont want to risk that the (120GB) swap area will actually be used and cause my data to be lost.
I guess my question is, can i relabel the swap partition as ext3 like it was before without formatting (ie without losing data)?
Here's the output of "fdisk -l", which doesn't show the swap area (the drive in question is "/dev/sdb"):
Code:
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Apr 19, 2010
I am trying to figure out a totally odd behavior of the ext3 filesystem mounted in Ubuntu 9.10. There is a Korn Shell script, part of which does the following in the loop:
while ((1)); do
mv dir1/file dir2;
if [[ ! -r dir2/file ]]; then
echo "ERROR"
ls -l dir1/* dir2/*
exit 1
elif
echo "OK"
fi
done
Given that dir2/file always exists and that I do not move it asynchronously with "&", my script should never hit the "ERROR" statement. The odd thing is that it does, and quite randomly (no pattern at all). However when it does hit the ERROR case, ls -l prints that file is in dir2 and it is readable! I tried using "-e" instead of "-r" test - no luck. I never seen anything like this in 10 years of my programming experience. Same script worked fine on Fedora 11, and yet it wouldn't work on Ubuntu.
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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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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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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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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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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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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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Jan 24, 2011
How to convert all ext3 partitions to ext2 on a existing Lenny without damage a system?
Code:
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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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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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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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Nov 13, 2010
how can i locate an Ext2 or Ext3 file system by using the terminal?
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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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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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Mar 10, 2010
I'm using opensuse 11.1,syetm specification is following
CPU entium 4 2.93GHz
motherboard:asus
Hardisk:40 gb maxtor
Ram:1 GB
my system getting hang periodically after some time and the kernal showing the following error message
[Code]...
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May 25, 2010
I have double boot (windows7 and Opensuse) on my laptop.
My problem is when try to login Opensuse says Read only file system.(While booting a lot of things FAILS(written red) because of Read only file system). So i can't login.
Cause of this problem is want to reach my Opensuse filesystem from windows7.I installed Ext2fsd software to windows7.After installed software can see my opensuse filesystem.But it looks empty from windows7.So uninstalled the software.
After that day try to login my Opensuse.While booting alot of thing fails to load it says "FAILED".and when entered my password after entering my username cant login it says ..... Read Only File System.
How can i make the filesystem Read/write permissions to my opensuse operating system.
I can't use any command beceause can't login. (I will try to boot with Opensuse Dvd)
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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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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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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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Jan 29, 2011
While trying to boot into the normal user the system aborts the login and tells me that /home does not have write permission.
The login manager gives:
Code:
If I log in as root and do a
Code:
Or to open some files, it works and no problem seems to exist.
All this happened for the first time after running luckybackup to fusion the old files of one home directory under EXT4 with the new files from my notebook (ext3, Opensuse 11.1 KDE3) in order to come to a unified home. But then the system did not boot any more. I tried to change the owner but some files did not have write access (not even as root, "the file does not exist"). So I thought I might have a a file system problem.
So I thought: unmount the /dev/sdb1 and then do a fschk on it. Runs and was perfect. So I did run it with forcing to control inode per inode.
No error.
So I thought: you screwed up the system. I then decided to reinstall OpensSuse11.3 from the scratch and create the same user for home. I formatted the rest (/swap /boot /root) and left only /home. Installation runs brilliantly, all ok, it comes to the login..................
Code:
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