CentOS 5 :: XFS Root Filesystem Corrupt After 5.3 Upgrade?
Apr 5, 2009
today I upgraded (yum update) one of my Dell Poweredge Server from 5.2 to 5.3. After rebooting the system first seems to start normal but then the following Error Messages appear:
Apr 5 14:28:26 srv_1 kernel: I/O error in filesystem ("dm-0") meta-data dev dm-0 block 0x668000008 ("xfs_trans_read_buf") error 5 buf count 4096
Apr 5 14:28:26 srv_1 kernel: attempt to access beyond end of device
Apr 5 14:28:26 srv_1 kernel: dm-0: rw=0, want=27514634256, limitfs]
[code]....
Booting with a rescue disk and doing a xfs_repair solves the file system Problems but moved a lot of files ( at least /usr/bin and /usr/lib completly) to "lost+found"... I tried the update with a spare 5.2 Server (different Hardware), and ended up with exactly the
same effect and error message. Both systems are running XFS as root File system on an LVM Disk.
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May 19, 2009
Ive setup a filesystem on a RAID 0+1 and am looking at moving root filesystem from a single disk to the new one. I could not install CentOS on mirrored filesystem as the RAID card did not have a pre-built driver for CentOS 5.3, so I had to compile the driver after installing the system.
What Im going to do now is:
1.Mount the new mirrored filesystem under /root1
2.use find | cpio to copy everything from the existing / to /root1
3.use grub to create a boot record on /root1
4.edit /root1/etc/fstab to point / to the new disk
5. reboot the system and keep my fingers crossed
Is this the way to go? Am I missing anything?
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Jun 27, 2009
I have successful tar an existing CentOS 5.2 partition from Fefora10. The idea is to move a working CentOS 5.2 reside in an internal hard drive to a portable hard drive. I know how to edit a stencil in menu.lst to boot the clone CentOS5.2. During boot, I encountered
Red Hat nash version 5.1.19.6
mount: could not find filesystem /dev/root
setuproot: moving /dev failed No such file or directory
setuproot: mounting /proc: No such file or directory
setuproot: mounting /sys: No such file or directory
[Code]...
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Oct 26, 2009
I was looking at the root filesystem folder for mounting a device when I noticed extra folders. I'm using an encrypted filesystem so I'm not sure if it's that, a break in or the default Red Hat layout. I searched these forums and Google to no avail on extra folders. The root system contains the following:
bin {fda00e13-8c62-4f63-9d19-d168115b11ca} media opt selinux usr
boot home misc proc srv var
dev lib mnt root sys
etc lost+found net sbin tmp
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Jun 17, 2011
I had a LiveUSB of CentOS 5.5, so I decided the install it.With no installer,I just copied the files to my hard drive.his was in a multi boot with Windows 7, Ubuntu 9.10, and FreeDOS.I updated GRUB2 and it detected CentOS. I loaded my entry and it failed to mount the root filesystem.I took the initrd0 file from the LiveUSB syslinux folder and added that ramdisk to the entry. Now it finds the root filesystem (/dev/sda9 as Ext3).But it fails shortly after loading /sbin/init. It talks about an init error where it says "File not found!!!".The previous lines involved umounting old filesystems, like /dev.
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Jan 8, 2010
I had an interesting problem with my workstation this morning. When I booted the system I got a message that the sda1 filesystem was corrupt. I ran fsck on all the unmounted filesystems and found them to be clean. I then booted from the F12 live CD and checked the file systems again using 'Disk Utility' - everything appeared to be clean. However I still couldn't boot the system. I eventually reinstalled F12 from the Live CD.
Seems to be a bit strange as all the checks I ran showed the file system to be OK.
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Apr 16, 2010
am having issues with a corrupted ext4 filesystem. My machine has run flawlessly for weeks, then all of a sudden I am getting messages that I can't access various directories, and on reboot fsck dumps to a command line. So far I have been able to fix the problem by manually running fsck. However, this is the second time that I have run into this problem; the previous time I ended up throwing out my hard drive and doing a clean install.I am running a clean install of Karmic Koala, software RAID, 4 Gb RAM, two 500 Gb Western Digital SATA drives, with an Intel E7200 2.53 Ghz dual core processor.Among other applications, I run VMware 7.0 for the occasional task for which I need a Windows program.
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Dec 1, 2010
Recently I was forced to hard reset my computer a couple of times (mostly out of frustration) and due to my idiocy i was confronted with the standard Kernel Panic message at bootup. I tried running an fsck from live cd which corrected a bunch of errors but to no avail (as far as getting rid of the Kernel Panic msg). I then tried to mount the filesystem by accessing it from live cd (and later even installed ubuntu on a small leftover partition to get rid of the annoying live cd lag) but it says that I don't have access to my home or root folder. Mounting from command line gave the same issue.
So now to the question. Is there a general procedure to access data in my corrupt filesystem if it is encrypted?
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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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Dec 21, 2010
My linux distro is CentOS 5.3. Today I edited /etc/sysconfig/readonly-root and set "READONLY" to yes, now my /etc/sysconfig/readonly-root file is like this:
# Set to 'yes' to mount the system filesystems read-only.
READONLY=yes
# Set to 'yes' to mount various temporary state as either tmpfs
[code]...
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Mar 2, 2011
I want to upgrade kernel to 2.6..36 from 2.6.18 of CentOS 5.5. The make process is successful but prompt "could not find filesystem /dev/boot " after reboot.
Some articles suggest to edit file .config and set CONFIG_SYSFS_DEPRECATED_V2 to 'y' and re-make kernel. However, the problem still stand there after reboot again.
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Jan 24, 2010
I'm typing this command in terminal ;
Code:
sudo -s
my password then ;
gedit /boot/grub/grub.cfg
My windows (system) disk is in /dev/sda5 but when I look grub.cfg file windows system disk is in /dev/sda1. When I want to save this file I take an error. Could not save the file /boot/grub/grub.cfg. You are trying to save the file on a read-only disk. Please check that you typed the location correctly and try again.
annotation : error in windows is : missing or corrupt <windows root>system32hal.dll.
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Jan 19, 2011
I think my upgrade from 10.04 to 10.10 got corrupted. The update manager got half way through upgrading the system and then complained about some dependency. I forgot I hadn't closed the update manager and ran synaptic with it still open to update some packages. In any case I think the system got in a mess as
Code:
cat /etc/issue
gives
Code:
Ubuntu 10.10
[Code]...
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Feb 1, 2011
I just needed some help with running the bash shell. I think I might have accidentally corrupted a file when I was looking through the /bin dir. Anyways, whenever I login to my server via SSH I get the following output:
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Aug 13, 2009
I am trying to build a root file system for using it with the user mode linux on a fc 11 system.
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Mar 19, 2010
I have a custom Ubuntu distro that run both from a CD and PXE boot. The problem I have is that I need to boot in an environment that has to be routed through a router that can't forward NFS (the protocol doesn't use a standard port) I found that the Ubuntu based Clonezilla Live CD has a option like "fetch tftp://server/folder/filesystem.squashfs" I can borrow the kernel and initrd and it works, but how do I add this feature myself? Is there a package I need to install or a initrd option I need to add?
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Jun 18, 2010
Lately however my root filesystem is getting filled up every night-- I come in in the morning and have notices that I have 0 bytes remaining. There's tons of room on the disk, but the root is full. Here's what it looks like with a df -h:
[Code]....
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Mar 1, 2010
ive been recently experiencing some problems with my ubuntu studio 9.10 setup, with the filesystem failing to mount. after deciding to try a new hard drive and cable, as well as clean install ubuntu, fedora and now mint, im still finding no filesystem.im using a live cd created for mint (like it ). having clicked install to hard drive, all is well until the partition manager, where all the boxes are greyed out. clicking forward produces a box saying "no root filesystem defined". i see there are a few on here from a few years back and having read through them, cannot find a fix for myself.
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Jan 10, 2011
Using Ubuntu 10.10, 64-bit, installing after LiveCD testing.sda3 can't really be erased due to its contents, something I can't exactly get back or transfer.
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Sep 15, 2010
I have switched recently from Ubuntu to Debian and overall I am enjoying it. However I was just wondering, does Debian, like Ubuntu check the filesystem at boot periodically or if damaged, because it is doing neither in my case? How do I get it to do this
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Sep 10, 2009
2 days ago I had installed Fedora 9 on an old machine. The installation was from a Flash USB, and was OK and the kernel on thar installation was 2.6.25-14.fc9.i686.
After the installation I updated the system, and all looks to be ok, and the system was set with the kernel 2.6.27.25-78.2.56.fc9.i686.
But when I start the system with the latest kernel itś get blockd on "remounting root filesystem in read-write mode" step, but not with the original kernel witch start correctly.
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Jun 25, 2010
I'm new to fedora 13 and I have been through a few installs already with a 12TB raid. Fedora is installed on a separate 250GB drive. I've mounted the 12TB drive as a single share and I'm capturing large video files (12-90GB each) to the raid in a Samba Share across the network. The system runs great for about three days and then I start getting warning messages that "the volume filesystem root has only 1.9GB of disk space remaining" then another later 205MB etc until it eventually fills to 100% and then locks the machine. If I reboot I get a Gnome error and can't login. The only solution has been to reinstall fedora again from scratch.
Each time I allocate more space for root. My current partition is 65G in size. The raid shows only 5.1TB of space used and it shows 7.2TB of free space. The raid share shows as being mounted in /media. Root shows that it will be full at 5.2TB, and I'm almost there, so I'm probably looking at another install in just a short while when it freezes again. I've read reinstall and make a larger root partition, but I'm not sure how big that must be to avoid this problem in the future. Also, is there a limitation on the size that root can be? my question stems from the fact that I have over 7TB of free space but somehow the root is reporting as 100% full at only to 5.1TB.
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Oct 26, 2010
I am running 11.2, kde4. The day before yesterday, the system updated and I think there was kernal update within that. I had no problems immediately afterward. Then I did a total shutdown for the night, and turned it back on yesterday only to find this:
Mount: wrong fs, bad option, bad superblock on /dev/sda2, missing codepage or helper program, or other error
In some cases useful info is found in syslog--try dmesg | tail or so
Could not mount root filesystem--exiting to /bin/sh
sh: cannot set terminal process group (-1): Inappropriate ioctl for device
sh: no job control in this shell
$
Besides the last updates from the other day, I did nothing out of the ordinary, no downloads or any system/configuration tweeks. Will I have to reinstall opensuse? or is there a way to reclaim my previous setup--or at least reclaim my files and documents? I'm running off of the 11.2 livecd.
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Feb 15, 2010
I have a dual booting newly installed 64 bit Ubuntu 9.10 on my machine. It was all fine until today. Now when I boot into Ubuntu, I see the error Failed to mount root filesystem. I cant remember any significant changes during the last session. One thing I remember is I upgraded the system using the update manager which asked me to choose an option for grub boot loader. I opted for its upgradation. After the upgrade, I was able to work with Ubuntu for a few more sessions. Windows XP works very fine.I checked other threads which suggested running fsck, but it did not help. fsck does not report any errors.
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Jan 4, 2011
Anybody know if its possible to add the root filesystem to the favorites in files and folder in ubuntu 10.04 nbr?
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May 27, 2011
I am using GRUB bootloader. I can boot into windows fine. But booting into linux gives me the error "kernel panic: unable to mount root fs on unknown block(0,0)I got LILO to load linux fine but GRUB always gives me this error regardless of the linux OS for this particular computer.
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Jun 7, 2011
I boot up a Linux appliance entirely in RAM, ie. the image has a Linux kernel and an attached ext2 root filesystem.
Now that it's working, I would like to copy the root filesystem from RAM to a NAND flash memory.
Can I just mount the NAND, run "cp -a /* /mnt/nand", reboot with the kernel command line "root=/dev/mtdblock2 rw", and expect Linux to be happy... or is it more involved than this?
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May 4, 2010
Suppose I have a good backup of the / root filesystem. How do I recover the / root area? Suppose I have modified the root filesystem, perhaps I do an update some of the packages and regret it, and I want to get back to the system at the time of the backup. How do most linux people recover the root area of a system from a backup?
1) I wondered if I might put a System Rescue CD in and boot off it?
2) And then NFS mount the directory containing the backup? -In my case, I have made a good backup using rsync, to a directory elsewhere on the network.
3) And then, still booted off the System Rescue CD, mount the partition that contains the / root area in question?
4) Would I then clear or empty or delete the contents from the / root partition?
5) And then copy across all the files from the backup into the / root partition?
I ask these questions because of the (very nice) way linux OS is built entirely from packages... Am I being too complicated? (By comparison, I can see it is easy to recover user data.)If, instead, I simply recovered the backup straight onto the updated root filesystem, I wonder what it would look like if I then tried to verify it with "rpm -Va", for example? Surely, all the packages would fail the verification, because it would think it has a later version of each package from the update, but the actual files would have been overwritten by the earlier version from the backup?
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Feb 1, 2011
When i installed ubuntu. I made a seperate partition so that i could copy an ISO image onto it of an up-to-date version of ubuntu. I wanted to then boot the ISO up so i could install the new version that way. I've already tried doing it through the update manager but it'll download, almost be done with installing and it freezes on me. so i figured this would be easier. However i do not know how to gain access to the other partition to copy the ISO image. Please help.
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May 21, 2009
I'm running CentOS 4.3 on a VM which is an application server for Quinstreet. trouble is when i keep coming in during the mornings it seems to keep making this root filesystem read only. There is no pattern for this and neither is it clear in the messages log why this keeps happening.
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