Ubuntu :: StartUp Halt Error - Filesystem?
Jan 22, 2011
I just accidentally clicked on my ubuntu drive when I was in PCBSD Unix and I had somehow glanced at a few things. When I tried, it didn't really let me in as much, but it said something about an access error and denial when I looked with the KDE Dolphin file browser.All I did was leave the rest alone and reboot but then got this when attempting to access Ubuntu:----------init: hwclock main process (366) terminated with status 29564.General error mounting file systems.---------- also got back into BSD and formally unmounted and rebooted again, but to no avail.
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Aug 30, 2010
The other they my laptop totally halted in the middle of a luks-encrypted external-hd copy operation or such.After a hard poweroff and reboot, the linux procedure would halt at the
Code:(initramfs) line and couldn't be pushed further. I booted with a LiveCD, ran sudo fsck /dev/sda1 and answered yes to a bundh of filesystem-fixing prompts. Yesterday the it happened again: freeze then incomplete boot with same error message. Do you have an idea of what can be causing it? How can I diagnose this problem?
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Mar 7, 2011
Yesterday I installed the latest version of ubuntu to my computer that was already running windows 7. I had everything working fine until in windows I deleted a partition that had nothing in it.
After this I restarted but I can't get into either OS. I get an error that says Error: unknown filesystem grub rescue>
I think I need to fix something in grub. I have been booting off of a usb stick with linux on it in the mean time.
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Mar 7, 2011
Yesterday I installed the latest version of ubuntu to my computer that was already running windows 7. I had everything working fine until in windows I deleted a partition that had nothing in it. After this I restarted but I can't get into either OS.
I get an error that says Error: unknown filesystem grub rescue>
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Jul 21, 2010
I am having a strange problem I've never encountered before. I have an Asus Eee S101 10.1" netbook with the 32GB SSD. I installed Ubuntu 10.04 Netbook Edition.
The other day, I was browsing with Firefox, when suddenly the entire computer came screeching to a halt. Had to power it down with the power button. After this happened, I have been unable to use the same Firefox profile I had been using. I had to start Firefox from the command line with the -ProfileManager switch, then create a new profile to keep browsing.
I wanted to completely get rid of the old profile, so from the Profile Manager I tried to delete the old one. Computer hung, had to reboot with the power switch. I then tried to browse to the .mozilla/firefox directory and delete the profile's directory there, from both Nautilus and the command line. Both times, the computer froze.
I tried a few more times, and the couple of times the computer didn't freeze, I got an error from the command line saying a Bash input/output error. After this error appeared, it would appear no matter what command I ran - I couldn't even run a sudo reboot now.
I can create/delete other files and directories, just not that Firefox profile.
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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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Apr 20, 2011
I was installing last night some applications , then i forgot to plugin my laptop so suddenly it turned off , anyways today i turned it on , while booting it gave me this error : "error where found when mounting the disk file /"so i press I to ignore , and it works , but now how can i fix this error?
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Nov 23, 2010
I have a dual boot system with ubuntu 9.10 x64 and Windows 7. Everything has been working fine for a a long time but yesterday I tried to delete an unused partition through the Disk Utility in ubuntu (System->Adminstration->Disk Utility) and everything was messed up. I used to get the "Grub error: Unknown filesystem". I managed to create an ubuntu bootable usb and followed some tutorials for fixing grub but all i managed to do is to get another error: "Grub error: No such disc". After some experimentation i got
"Grub stage 1.5" which gave me a grub> command prompt./dev/sda is the drive containing Windows and Ubuntu.
Code:
[ Boot Info Script 0.55 dated February 15th, 2010
============================= Boot Info Summary: ==============================
=> Grub 0.97 is installed in the MBR of /dev/sda and looks on the same drive
in partition #6 for /boot/grub/stage2 and /boot/grub/menu.lst.
[code].....
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Mar 7, 2010
Running ubuntu server (ie no gui) but suspect this might be a general problem.
With the machine booted from the hard drive, if I run fdisk -l I get an invalid partition table message code...
Unable to read the contents of this file system!
Because of this some operations may be unavailable.
How do I correct this error?
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Nov 28, 2010
I went away for a few days but left my computer on to seed torrents. I come back today to find that my flatmate decided to have a tidy up, unplugging my computer and external HDD in the process...I set my computer back up but now my external drive is refusing to mount. This drive has EVERYTHING on it - about 5 years worth of music & video d/ls plus a lot of important documents so I'm praying that it isn't wrecked.That I know of, the drive was mounted but not in use when the power was pulled. The disk utility recognises its there and SMART-healthy, but claims "Filesystem is NOT clean" and won't mount it.
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Mar 22, 2011
having a bit of a problem here. I woke up this morning, and my computer was froze. It does this from time to time, the monitor won't respond and wake up, flashing lights in the keyboard etc. Well anyways, I turned it off, then turned it back on, and it says:
Code:
error: unknown filesystem
grub rescue >
[code]....
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Feb 25, 2010
i have changed from windows xp to ubuntu 9.10 in monday but yesterday i turned my pc on and when i get in my session all get freeze, i waited for an hour and it was the same so i turned it off pressing the on/off button of the cpu, when i restarted it it saysGrub loading...Grub failed: unknown filesystemGrub rescuei dont knoe what to do.PD:i removed windows, only ubuntu is in the PC
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Jul 14, 2010
I have a laptop with windows7 and ubuntu installed. When I installed Ubuntu it created 4 partitions (2 for swap and 2 for ubuntu). Yesterday, a friend of mine deleted one of the partitions (swap+linux) because they weren't being used (weren't even mounted) and he thought I could use the free space. I kept on using the laptop but today I had to reboot it. Instead of getting the usual grub menu I got this:
Code:
error: unknown filesystem.
grub rescue>
I tried using the solutions I found in lots of posts related with this matter but I couldn't fix it. What I tried was this:
Code:
#show you the available partitions
ls
#look for boot files on the partitions
ls (hd0,1)/boot
[code]....
The problem is that it doesn't recognise the commands 'linux', 'boot' or 'initrd'...
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Jan 3, 2010
I had win7 on my laptop. Before sometime I install Ubuntu 9.10 and it worked fine. Bur later that I resize the partition using third party software. Now when I restart the system it is giving me an error
GRUB Loading
error: unknown filesystem
grub rescue>
I am not able to access the harddrive. I am very new to ubuntu.
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Feb 7, 2010
I have been using ubuntu 9.10 for a month. i have it installed on a 5GB separate partition of a 80 GB hard disk with my XP installed on a C drive(a separate partition ofcourse) then i had to remove it from my PC so i boot my PC with a partition manager cd and directly formatted that partition of 5GB from that software now i am having this error on my boot of PC....
grub rescue> error:unknown filesystem
I have tried a lot of commands here on this screen and nothing happens...i want to go to my XP .... and can't loose my XP OS and other data as well on different partitions.....
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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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Oct 16, 2010
there was ubuntu on my pc operating system but it is strange for me so i wanted to instal windows 7 on my pc. I inserted Window 7 disk and started to install it and i formated Ubuntu but the disk what i was using was damaged and it could not complite the installation and now i dont have any programs in my pc. Problem is that i got another disk but i cant boot anymore my pc, i select drive and stuff and then comes error.
error: unknown filesystem grub rescue- i tryed different commands but those didnt worked.
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Oct 24, 2010
I am using Ubuntu 10.04 and am having a major issue with it not booting. My PC worked fine yesterday but when I tried to boot this morning I get the error "error: unknown filesystem" and under that I get the "grub rescue>" prompt.
At first I thought this was just a problem with Grub that would be easy fixed so I put in my Ubuntu USB and loaded it up in live mode. But when I try to look at my file system from within the live environment I can't seem to see any of my files.
I have looked at the drive in GParted and my main file system (/dev/sda1) shows up as 'unknown', while the swap partition (/dev/sda5) shows up as it should. I have also looked at the drive with the Disk Utility and the SMART Status says the disk is healthy.
I am really concerned about this as currently the system is totally unable to load, not only that but I am also unable to recover my data from the drive which is my main concern as I havent done a backup for quite some time and I have a lot of python code that I have been working on that I really need to get back.
Has anyone got any idea of what to do and how I might be able to sort this out or at the very least recover all my data. I can't understand why this has happened I have not made any changes to the system recently other than installing the updates that came through yesterday. This is a really urgent issue for me and any help will be very appreciated.
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Nov 17, 2010
I had dual boot with windows 7 and ubuntu 10.04 running, and working. In my grub menu on startup I could choose (among things) something called Vista loader. Dont know why, since I installed windows 7 and not vista. Could also choose windows7 and ubuntu, both worked.
Today I accidentally pressed the vista loader, and now I get the following error upon boot: Error unknown filesystem grub rescue
So the next thing I did was download the latest ubuntu and boot from live cd. I followed instructions [url] on how to purge grub2 and reinstall it, and did so with out any problems. However the same error remains when I boot.
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Dec 3, 2010
My sister got a Dell laptop installed Ubuntu 9.10Her 3 year old son got to the laptop and i have no idea how hey did this.He accidentally deleted the hole hard drive + file system ext4.Can com one tel me how the blip i can recover the lost data.Now if i do this sudo fdisk -lu i get this
Device boot Start END Blocks ID System
/dev/sda1 * 19131 19458 2620416 C w95 FAT32 (LBA)
/dev/sda2 18707 19457 6032407+ 5 Extended
[code]....
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Apr 19, 2011
I just recently decided to install Ubuntu alongside windows 7 64bit. I was working fine until I decided to increase the partition size of the unused space to take up some space of an unused partition I had made earlier. When I tried to reboot windows I got the error -
error: unknown fileystem.
grub rescue>
I have tried a windows repair disc with no results, it cannot find any problem with the startup routine and I have looked at many different tutorials and information about how to restore grub using command from the grub rescue menu. Ubuntu 10.10
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May 19, 2011
I'm trying to format an external hard disk under Ubuntu 10.04. All starts well, but eventually I get the message:
Error formatting volume
Error creating file system: helper exited with exit code 1:
Error calling fsync(2) on /dev/sdb1: Input/output error
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Sep 6, 2010
I've just got a new laptop with 4GB RAM available, in order to fully utilize the available memory I'm going to install Ubuntu Lucid Lynx 64bit, but when I boot with Live CD, I always get the following errors:
Code:
BusyBox v1.13.3 (Ubuntu 1:1.13.3-1ubuntu11) built-in shell (ash)
Enter 'help' for a list of built-in commands.
(initramfs) mount: mounting /dev/loop0 on //filesystem.squashfs failed: Input/output error
Can not mount /dev/loop0 (/cdrom/casper/filesystem.squashfs) on //filesystem.squashfs
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May 2, 2011
I tried upgrading to 11.04 this morning and after rebooting grub left me at the grub rescue> prompt with the message 'error: unknown filesystem'. I've tried purging and reinstalling grub using a live-cd but no joy.
Let me know what additional information to provide. EDIT: Here is the output from the Boot Info Script
[Code]...
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Jul 29, 2011
I am trying to put Ubuntu on my USB.
I use the tool here (as recomended by Ubuntu) to put it on my USB. It seems to work well up until it says "Data error in 'casper/filesystem.squashfs'. File is broken".
I tried to install it anyways (I know how to work the BIOS and everything) and the installation just stops with an error message.
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Mar 18, 2011
my ubuntu installation has stopped booting after i deleted and again created one of my partitions (not the ubuntu partition but my data partition). but now when i switch on my netbook it says: error: unknown filesystem grub rescue>
i used gparted live to resize. this is my disk partition structure:
[Code]....
before doing this, my ubuntu partition was /dev/sda7, the swap partition was /dev/sda 6, and the data partition was /dev/sda 7.
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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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Mar 6, 2010
I need to examine a hard drive that came from another system running Ubunut Server (not sure what version). I know the drive has LVM on it, so as far as I understand that means the drive will be treated as EXT4 for mounting. I can't boot from the actual disk, but I have used a IDE to USB connector to make a binary copy of the drive, which I've mounted as a loopback device. However, when I try to mount the loopback device properly, I get this:
root@~je:/# mount -o ro -t ext4 /dev/loop0 /mnt
mount: wrong fs type, bad option, bad superblock on /dev/loop0,
missing codepage or helper program, or other error
In some cases useful info is found in syslog - try
dmesg | tail or so
I tried using -t ext4dev too, but that just gives an unknown filesystem error. The file I've got mounting in /dev/loop0 is a .dd file, created by imaging the drive using dcfldd on the server drive while it was mounted (as /dev/sdb). System I'm working on is running Ubuntu 9.10. All I need is to be able to mount the server drive so I can traverse the file directories, there's a few things I need to check on it. If needed I can dispense with the whole loopback setup and just directly connect the server hard drive again using the IDE to USB cable, but I'd rather not do that; it's imperative that the drive doesn't get altered, or at least as little as possible.
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Mar 22, 2011
I am experiencing a problem with virtual box 4. Did an install from binary, and everything went ok and virtual box launches, but once I have created the virtual disk and the want to run it, I get an error, and the log says that it has to do with the ext4 filesystem and has a known kernel bug. How does one go about sorting this out. Here with the log from virtual box.
00:00:00.654 VirtualBox 4.0.4 r70112 linux.x86 (Feb 17 2011 17:29:29) release log
00:00:00.654 Log opened 2011-03-22T15:50:28.174435000Z
00:00:00.654 OS Product: Linux
00:00:00.654 OS Release: 2.6.34.7-0.7-desktop
00:00:00.654 OS Version: #1 SMP PREEMPT 2010-12-13 11:13:53 +0100
00:00:00.654 DMI Product Name: HP Pavilion dv6700 Notebook PC
00:00:00.654 DMI Product Version: Rev 1
00:00:00.655 Host RAM: 1988MB RAM, available: 1595MB .....
Then tried moving the vbox files to my home partition which is ext3, but it says that file system is unknown, again herewith log:
00:00:00.589 VirtualBox 4.0.4 r70112 linux.x86 (Feb 17 2011 17:29:29) release log
00:00:00.589 Log opened 2011-03-22T16:06:15.412283000Z
00:00:00.589 OS Product: Linux
00:00:00.589 OS Release: 2.6.34.7-0.7-desktop
00:00:00.589 OS Version: #1 SMP PREEMPT 2010-12-13 11:13:53 +0100
00:00:00.589 DMI Product Name: HP Pavilion dv6700 Notebook PC
00:00:00.589 DMI Product Version: Rev 1
00:00:00.590 Host RAM: 1988MB RAM, available: 1476MB .....
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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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