General :: Ubuntu 9.10 Install Won't Boot After Filesystem Damage?
Feb 13, 2010
I was running a somewhat standard install of Ubuntu 9.10, when my drive got pushed into read-only mode, so I switched to tty1, ran /etc/init.d/gdm stop, and then ran fsck -y /. It took an hour or too, but eventually finished. However, now that partition is unbootable, and upon attempting to boot into Ubuntu, it complains about libsepol.so.1 as missing and starts a recovery shell. In this recovery shell, only certain tools work. ls complains about libacl.so.1, and the filesystem is still read-only. When I try mount -rw /dev/sda1, it complains about libsepol.so.1 again. I can however still run fsck. I tried running it with fsck -p -f /, and it completes, much quicker, but the system remains unbootable. I could probably boot into the Ubuntu live-cd to get read-write access, but I wouldn't know what to do. I read an interesting suggestion here, but I don't know how I would go about reinstalling the base Ubuntu packages without write access to the hd, or through the live cd.
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Feb 13, 2010
I was running a somewhat standard install of Ubuntu 9.10, when my drive got pushed into read-only mode,It took an hour or too, but eventually finished. However, now that partition is unbootable, and upon attempting to boot into Ubuntu, it complains about "libsepol.so.1" as missing and starts a recovery shell. In this recovery shell, only certain tools work. ls complains about "libacl.so.1", and the filesystem is still read-only. It completes, much quicker, but the system remains unbootable. I could probably boot into the Ubuntu live-cd to get read-write access, but I wouldn't know what to do.I don't know how I would go about reinstalling the base Ubuntu packages without write access to the hd, or through the live cd.
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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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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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Mar 26, 2010
I am running Ubuntu 9.04 on a Dell Optiplex SX280 Yesterday the system locked up, and when I rebooted I got stuff like this:
Code:
[ 126.466459] ata3.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0
[ 126.466464] ata3.00: BMDMA stat 0x24
[ 126.466471] ata3.00: cmd 25/00:20:bf:a2:21/00:01:00:00:00/e0 tag 0 dma 147456 in
[ 126.466473] res 51/40:41:00:a3:21/40:00:00:00:00/e0 Emask 0x9 (media error)
[ 126.466476] ata3.00: status: { DRDY ERR }
[Code]...
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Feb 1, 2011
How to change boot loader from Grub to syslinux on running Lenny without damage the system?
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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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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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Mar 27, 2010
When I try to boot to OpenSUSE I get the following error during boot-up: unknown filesystem type 'reiserfs' could not mount root filesystem - exiting to /bin/sh$
This only started happening quite recently - before this I could boot to Linux quite happily.
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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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Jun 22, 2010
I would like to test alphas (of distros and packages), but without doing so from my everyday environment.Obviously, frequent backups are essential for maintaining important files.Apart from that, what other measures can I take to prevent catastrophic data loss?Could a well-designed partition structure the chances of an alpha blowing up data on other partitions?
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Mar 24, 2010
Is it somehow possible to boot a Linux operating system from an encrypted filesystem/disk without having uesr interaction? Background: I am preparing a VmWare Image for shipment to a customer. This image contains sensible data. The only access granted shall be via an apache server running from inside in the image.
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Feb 5, 2010
you can refer to this ubuntu thread for context, but i'll sum up what i'm trying to do here to spare the reading. basically i want to be able to schedule a filesystem check with automatic repairs at the next boot time. but i'm not sure if this will try to automatically fix errors which is what i want to do. the reason i want to do this is because i experienced a power outage (the machine was not plugged into an UPS) and i want to make sure everything is ok.
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Mar 21, 2010
I have a problem when trying mounting, checking my ext3 partition. Is a external HD with my "portable" Linux system. Suddenly started to fail, when I try to boot it, the GRUB can't locate the config file, and show me the command line. I boot from my internal HD and try to mount it and have this messages.
Code:
sd 2:0:0:0: [sdb] Attached SCSI disk
sd 2:0:0:0: Attached scsi generic sg2 type 0
sd 2:0:0:0: [sdb] Unhandled sense code
sd 2:0:0:0: [sdb] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE,SUGGEST_OK
sd 2:0:0:0: [sdb] Sense Key : Medium Error [current]
sd 2:0:0:0: [sdb] Add. Sense: Unrecovered read error
[Code]...
1.- What exactly is in this first sectors (ext3 metadata?)
2.- Is there some way to fix this quickly, maybe with some "sectors relocation", Or re-create the first logical sectors.
3.- If not, who could i make a full backup (something like dd copy), of all the partition.
4.- How fix it?, even with a long prosses, i don't know, maybe backup the file structure (with forensic tools) and copy into a new (and re-located) partition. This is my last option because the forensic tools sometime can't recover all files and sometimes only parts, or very old files.
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Oct 1, 2010
i don't understand this, why do you have to mount a usb or cd to use them? its such a hassle, in windows the usb/cd just works, but in linux you have to mount it, why? when ever i shutdown in linux, i am using ubuntu it says my drive didn't unmount on shutdown and it might damage my files?
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Mar 11, 2011
I am trying to mount a file image, like this
mount -o loop /tmp/apps.img /media/apps
But I get the following:
mount: you must specify the filesystem type
I try ext3:
mount -o loop /tmp/apps.img /media/apps -t ext3
dmesg says:
error: can't find ext3 filesystem on dev loop6.
I've also tried ext2, vfat etc. How can I detect the filesystem type of apps.img?
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Feb 2, 2011
I would like to install linux (ubuntu) on a Flash disk with NTFS partition and boot from flash disk, is it possible? Yf yes how could i install ?
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May 24, 2011
Until now I always used a non-journaled filesystem for my /boot-partitions.But as it would make system restoring much easier after crashes I would prefer to use ext3 for my /boot-partition as well.Is this possible, and before all, recommendable?
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May 11, 2011
error: unknown filesystem grub rescue>
Background: My mother's HP laptop had Ubuntu and Vista on it, Ubuntu my brother's doing. He decided he wanted to take off Ubuntu yesterday (he had forgotten the password), and deleted the partition that it was contained within. The computer now boots to this error.
Inventory: We no longer have the install disk for Windows Vista, he cannot tell me what version he used of Ubuntu, what partition it was on, any of the specs for the machine, or generally any information about the system. All I am aware of is that error on the boot-up screen. I have nothing else to work with.
I would like to remove Grub, and Ubuntu, and leave Windows intact (the request of the owner of the computer), but I have no idea what commands I could use to get rid of either when I can't access Windows, or how to properly remove them if I did access Windows.
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Mar 17, 2010
I'm running Windows 7 on my desktop (But Ubuntu 9.10 on two laptops), and I have an odd problem.I backed up my system from one HDD to another HDD, and in the process the MBR of the destination drive got fouled up and now sees Windows Vista and Ubuntu (even though I never used anything Ubuntu - I assume the backup program used an ubuntu build).Is there any way No, I know there is. I had the answer once but lost it.HOW do I manually edit my MBR to remove the Ubuntu reference and rename Windows Vista to Windows 7? Please note Ubuntu was never dual booted, let alone installed at all, on the HDD in question.
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Jan 2, 2011
I've searched the internet all over, but somehow I didn't find a solution (I REALLY hope there is one :/). Of course I might have missed something, I found a lot of similar, but not quite identical problems.Today, when I tried to start up my system I was quite shocked, as my Ubuntu 10.10 didn't boot. The error I got was "No init found. Try passing init=bootarg".I didn't have any problems booting Windows XP, which I had installed alongside Ubuntu, so I burned a Live CD and tried to find out what was the matter.
As it appears, my Linux partition (/dev/sda5) is broken. I can't access it via Nautilus, as I always get a "A job is pending on /dev/sda5" error. Mounting it via terminal doesn't seem to work either.When trying to check the filesystem, either in Disk Utility or in GParted, I instantly get an error that the "device is busy" and (again) that "a job is pending".I tried to set a boot flag on /dev/sda5 (it wasn't there before), but this didn't help neither with accessing the partition from the Live CD norI tried to run the boot info script I found somewhere in a forum post, but it is just hanging itself up as soon as it starts checking /dev/sda5.
And "sudo mke2fs -n /dev/sda5" just gives me a "/dev/sda5 is apparently in use by the system" error.By the way I did all these steps just byollowing advices in other threads, so I do not necessarily understand what I did there.e .. is there a way I can get my files back? I would really, really hate having lost all that since my last backup is 3-4 months old (yeah, yeah, I know) and I have some quite rtant data on that filesystem.While there seems to be a big problem in that NOTHING seems to be working, GParted still recognizes the partition and how much of the disk space is in use .. so not everything can be lost - or am I wrong?
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Dec 20, 2009
I have dual-boot XP and Karmic.
I want to practice restoring the grub, before any emergency occurs
I plan to use the following thread: Grub/XP/Vista Bootloader - Ubuntu Forums
I would be grateful if someone could tell me an easy way to damage the grub. For example, re-installing XP always damages the grub, but I'm sure there are quicker ways to do the same thing
.
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Oct 16, 2010
My filesystem crashed/corrupted. When i start my machine i see the following messageTarget filesystem doesn't have /sbin/init.No init fount. Try passing init= bootarg.BusyBox v1.13.3 (Ubuntu 1:1.13.3-1ubuntu7) built in shell (ash)Enter 'help' for a list of build in commandsAfter googleing, found that i need ti run fsck on my partition (/dev/sda5)I used a Livecd and logged in the single user mode and tryedfsck /dev/sda5But i get fsck.ext4: Device or source busy while trying to open /dev/sda5Filesystem mounted or opened exclusively by another program?When i do lsof | grep sda5I see
jbd2/sda5 594 root cwd dir 0,17 280 2/
jbd2/sda5 594 root rtd dir 0,17 280 2/
jbd2/sda5 594 root txt unkown /proc/594/exe
[code]....
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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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Aug 27, 2010
I'm dual booting Win7 & Ubuntu 10.04 on a Gateway NV78 series laptop, and while on the Windows side, the Gateway Update Manager asks to update my BIOS. If I allow it to do so, will it mess up Grub? For bonus points: how could I fix Grub if the BIOS updates does damage it?
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Dec 28, 2010
I was in Ubuntu when I dropped my laptop, which resulted in a cracked screen. I loaded Windows (Vista), and found it and the files to be unharmed. On my attempt to load Ubuntu, it takes me to a GRUB screen, where it gives me a default message about GRUB. If I try the command "exit" it replies "No bootable device -- insert boot disk and press any key. It's installed on the same hard drive as Windows (dual boot setup), and Windows works fine. I do have files I would like to get off of Ubuntu (if it is unrecoverable),
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Jul 18, 2011
<CPU Performance Indicator>
Can it damage a laptop in the long run to have it on Performance rather than a lower speed like "Ondemand" or "Powersave"? My laptop runs a lot better with "Performance" rather than something else, but I don't want it to suddenly die or get overheated in a couple of weeks or months.
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Jul 20, 2011
extended my ubuntu partition with a free space that I had on my NTFS partition. It did get any problem. However, today I couldn't boot into ubuntu ( It was loading for about half an hour ). then I reboot and I got some GRUB error, so I boot into live cd to repair the grub but then unfortunately I found out that my Linux partition is damaged.I some how managed to repair it but the only folder that is there is "lost+found". also there is written 62.8 GB free space, but this should be 112GB (unless there are some hidden files that i can access to )
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Apr 30, 2010
After upgrading and restarting my laptop, The purple splash screen hangs, and the terminal gives this message.
Code:
Also the boot menu does not show (I cannot open the recovery mode)
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Nov 7, 2010
since yesterday that my ubuntu does not boot. This message appears...Target filesystem doesnt have /sbin/init,No init found. Try passing init=bootarg. (initramfs)
I boot ubuntu-live from a usb flash drive, but i can't mount the partition where i have installed ubuntu /dev/sda6. Either run fsck command. this error appears.... Filesystem mounted or opened exclusively by another program?
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