General :: Mounting An Ext3 File System Destroys Superblocks?
Jun 27, 2010
I have an image of an ext3 file system done with dd. I know that the file system is corrupted but I want to try to recover some files. Whatever I dd it again to the original partition or assign the dd image to a loop device, that's what happens:
- dumpe2fs -h gives me a valid ext3 superblock.
- as I try to mount the device read only, it fails with a bad magic number error.
- executing dumpe2fs -h again gives bad magic number error.
- trying debugfs or fsck with backup superblocks fails the same way.
For me it seems that in spite of mounting the device as read-only, mount command do something wrong with the superblock as before the mount the superblock is correct and it's there.
View 4 Replies
ADVERTISEMENT
Sep 7, 2009
How well is the ext4 new file system mounting compatibility with the older ext3 previous Linux installations ? I refer to Ubuntu 9.04 and the new Fedora 11 which have the option to install with the ext4 file format. Will it be better if I install with the older ext3, so that I will be able to mount all other Linux from each other in a multi-boot system ?
View 6 Replies
View Related
Jan 14, 2011
How do I go about mounting a device if I don't know the file system type (e.g ext3, NTFS)?
View 4 Replies
View Related
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.
View 2 Replies
View Related
Feb 7, 2010
I know there are many threads about recovering damaged superblocks. I've spent 3 evenings reading them and trying what they suggest. Invariably the commands do nothing except to report bad or missing superblocks. I've removed the physical disk from the machine and am working with a dd image file (/mnt/image). I can mount what used to be hdc1 and read its files with no problem. I'm trying to recover partions hdc6 and hdc7.$ mmls /mnt/image -b
DOS Partition Table
Offset Sector: 0
Units are in 512-byte sectors
[code]....
View 1 Replies
View Related
Jan 10, 2011
I used the ext3 format when I formatted my partition prior to installing Ubuntu10.10. I had accidentally deleted a file and began the process to get it back. It wasn't critical but helpful to recover the file. To make a long story short I ran into to some unexpected road blocks. I tried to use PhotoRec to get the job done but with no success.
I'm just looking down the road in the event I might have to recover something important.If it would be better going back to the Fat32 file system I would rather do it sooner than later. Just as a side note I am dual booting between linux and windows.
View 6 Replies
View Related
Jul 15, 2009
I'm trying to mount a second hard drive as a ext3 (rw_acl,user_xattr). I type the ff.:
# mkfs.ext3 -c /dev/sdb1(it seems to create a file system from this 2nd HD)
then type:
# mount -v /dev/sdb1 / type ext3 (it seems to mount it)
But when I check the ext3 systems with typing:
# mount -t ext3 (to check the list of ext3 devices, it gives me this)
/dev/sda1 on / type ext3 (rw,acl,user_xattr)
/dev/sda2 on /home type ext3 (rw,acl,user_xattr)
/dev/sdb1 on / type ext3 (rw)
How can I make /dev/sdb1 on type ext3 as (rw,acl,user_xattr) as the others?
View 11 Replies
View Related
Jun 20, 2009
I have accidentally removed vmware virtual disk, my host operating system is RHEL5.2 with ext3 file system, i have used photorec, magicresue and foremost but still no luck to recover the vmdk file. i have seen in foremost configuration file that there are some predefined files (ex- doc, pdf, jpg, avi, zip, etc),
1. is there any way to add vmdk file extension on that configuration file?
2. if yes how can i do ?
3. by adding vmdk on configuration file, can i specifically use recover option for vmdk?
View 2 Replies
View Related
Jul 7, 2011
I was in the process of installing Ubuntu 11.10, but got stuck choosing which file system to use. ext3 and ext4; which is better for a personal desktop? If ext4 is better, will it work well on my old PC (bought 3 years ago), or perhaps ext4 is not actually compatible with an old hard disk?
View 4 Replies
View Related
Sep 29, 2010
I am using linux kernel 2.6.10 after some time one of the file system is becoming read only. Here is the kernel dump
Freeing unused kernel memory: 160k init
kjournald starting. Commit interval 5 seconds
EXT3-fs warning (device hda1): ext3_clear_journal_err: Filesystem error recorded from previous mount: IO failure
[code]....
View 6 Replies
View Related
Oct 1, 2009
There were some files residing on my ext3 file system, using Ubuntu as my linux distribution. Yesterday I formatted the hard drive using a windows install CD, rewriting it with a new NTFS partition. I'm willing to restore my personal files deleted due to this format.
View 3 Replies
View Related
Apr 25, 2011
I have Debian Squeeze installed. I have 3 different HDDs, one of them is SATA, the other 2 are IDE, on one of which I have the distro installed.
How do I mount the other 2 partitions? I see them in "Places" but when I click on them I get an error message "Unable to Mount <The name of the volume> Can not get volume.fstype.alternative".
I can see both volumes in /dev/ntfs. I tried doing
Code:
View 14 Replies
View Related
Feb 16, 2011
I am trying to install a harddisk, which is already formatted as ext3, into my Qnap NAS box. The web interface of the NAS box shows, that the harddrive has been detected, but I am not able to mount any of its partitions.This is the output from fdisk -l:
Code:
Disk /dev/sdb: 1000.2 GB, 1000204886016 bytes
255 heads, 63 sectors/track, 121601 cylinders
[code].....
View 10 Replies
View Related
Apr 13, 2011
I have a dual boot Xp and Ubuntu 10.10.
Recently I was downloading some upgrades in Ubuntu and unfortunately the power to the system got off.
Thereafter on booting it comes to the Grub menu and I'm able to select the OS from the list but if I choose Ubuntu it comes up with a message "General error mounting file system" and the terminal is activated. However, if XP is selected it boots with no issues.
/dev/sda6 is ubuntu installation
/dev/sda7 is swap partition
I went through lot of threads over the net and tried fsck, e2fsck and other variations of that command but at the end all I get the message as
it says sda6 is clean but for sda7 it says :
Superblock invalid trying backup blocks.... Bad magic number in super-block while trying to open /dev/sda7 at the end it suggests "u might try running e2fsck with an alternate superblock: e2fsck -b 8193 <device>"
refering some threads here I tried my luck with live CD and the command : sudo e2fsck -C0 -p -f -v /dev/sda7
View 9 Replies
View Related
Jan 28, 2011
I made a modification to the /etc/fstab using Ubuntu 10.04 and now it wont boot correctly. I can get the cli but when I enter /etc/fstab and make an edit it says" changing permission of /etc/fstab: read only file system" This is what I get when the system boots:
PHP Code:
[code]....
so if I choose manual I get to the cli and whenever I attempt to edit the file I get the above error. I used another machine and attempted to mount the drive but I get the same error I added notaime option to my fstab by accident so if I choose manual I get to the cli and whenever I attempt to edit the file I get the above error. I used another machine and attempted to mount the drive but I get the same error. I tried
PHP Code:
[code]...
and I get
PHP Code:
[code]....
How can I mount the partition so that I can edit it?
View 2 Replies
View Related
May 11, 2011
I need to customize linux kernel root file system for embedded linux system. During compile time, for root file system I am able to create different user/group ex: "gnumuzic/Muzic". But I want to give access to group "Muzic" to some folders like /dev/nexig during compile time.
View 1 Replies
View Related
Oct 25, 2009
How would I format my partition into a ext3 file system?
View 1 Replies
View Related
Feb 9, 2011
I am using Ubuntu since release 8.10, but it is first time when i can`t solve problem
when i tried to create new NTFS partition on unallocated disk space with Paragon Partition Manager (damn, that was stupid). Process was aborted with error (later i finally made it with Gparted without problems)
After reboot mine Ubuntu say:
Code:
Errors were found while checking the disk drive for /
Press F to attempt to fix errors, I to ignore, S to skip mounting or M for manual recovery. I pressed "F" but that had help only for a boot and doesn`t really fix error :`(
Later i booted from liveCD and had checked partition (/dev/sdb1; file system - ext3) with gparted (result - aborted fixing process with error) Now i can`t even boot from that partition and even mount it from other linux system.
mine fdisk -l
Code:
/dev/sdb1 * 1 5957 47849568 83 Linux - problematic partition (unmountable)
/dev/sdb2 5958 29983 192988845 7 HPFS/NTFS
[Code]....
PhotoRec recover most of my files, but i need complete partition.
View 9 Replies
View Related
Apr 13, 2010
I need evaluate the ext3 file system performance; i need define:
- services provided
- parameters and
- the performance with different parameter values; for example, changin the value of the "data" parameter (journal, ordered, writeback).
I do not know what services ext3 provides. Well, i know intuitively that it provides services to read, write and erase files. But, there are anything more?. Where can i find the API?. Is the ext3 file system POSIX compliant?
View 7 Replies
View Related
Aug 29, 2009
I accidentally formatted a HDD when I meant to format a USB thumb drive. The HDD is a 250GB drive that had about 180GB of data in the EXT3 format. I was actually attempting to make a bootable USB thumb drive with TRK (Trinity Rescue Kit). Kind of funny/ironic to mess up a drive while trying to make a rescue disk. Anyway, as soon as I realized what had happened, I pulled the drive out of the computer to make sure I didn't do anything else stupid to it. I have been searching for some way to recover and haven't really found much. There are a lot of programs to get Windows data back, but I haven't seen anything specific on the EXT3 file system.
View 4 Replies
View Related
Sep 30, 2009
I have lost the data of my drive having file system ext3, please tell me the most reliable softwares for data recovery, please try to tell also GUI software.
View 1 Replies
View Related
Jun 22, 2010
how to mount ext3 file system with direct i/o.on AIX has dio mount option to use direct i/o and solaris too.
View 2 Replies
View Related
Aug 29, 2011
Which file system uses Centos 5.6 by default, Ext3 or Ext4? I have installed on Ext3, it's upgrade from 5.5, but howto convert into Ext4 without damage or lost data?
View 3 Replies
View Related
Jan 6, 2011
I want encrypt my fedora file system.
How to i can encrypt ext3 or ext4 file system.
View 5 Replies
View Related
Nov 13, 2010
how can i locate an Ext2 or Ext3 file system by using the terminal?
View 2 Replies
View Related
Nov 3, 2010
I have configured a "Syslog" server on /var directory as a separate ext3 partition - to receive the logs and events from the clients & the firewall as well. The directory needs to grow dynamically as the logs are populated. Is there a way i can make the filesystem grow dynamically as and when the directory is full.
View 6 Replies
View Related
Dec 27, 2010
I'd like to know which command i should run from the terminal to know which file system (ext3, ext4, etc...) my Ubuntu runs on.
View 2 Replies
View Related
Feb 9, 2010
i needed to change my external hard drive's file system from ext3 to fat32, to use it in windows, which i did the simple way: i shrunk the ext3 partition, made a fat32 partition, copied the files over, removed the ext3 and made the fat32 bigger. unfortunately, while gparted was making the partition larger, my computer shut down. i lost all my files and the partition messed up immediately. i made a new fat32 partition, after deleting the old one, but noticed that gparted was showing 100 gigs already in use (???). so now i have a 300 gb hard drive with only 200 gb i can use; i ran df to make sure gparted wasn't messing up, but indeed it shows the partition as being only 200 gigs in size. i haven't tried making any other kind of partition yet, such as ext3, for fear of losing my files again, and because it wouldn't be permanent anyway, because i need those files in windows and stupid microsoft won't make their OS ext3 compatible.
View 2 Replies
View Related
Sep 29, 2010
In the boot process of Linux we have the initrd that is a root file system and is mounted before the real root file system become ready to mount. What is the procedure of mounting? What should happen so we can say that file system is mounted? And another little question why we say ¨root¨ file system instead of just file system?
View 2 Replies
View Related
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..
View 1 Replies
View Related
