Ubuntu Installation :: Power Failure During Kernel Update - How To Recover

Sep 12, 2010

I was updating the kernel and left the computer to let it do its business. There was power failure and I don't know if the update completed or if it was in the middle of it. Now if I start the computer, it freezes up at the login screen. I tried to recover from grub, by selecting "Ubuntu, with Linux 2.6.32-21-generic (recovery mode)". There were no prompts for input after this. The recovery screen is not updating anything after:

[2.348886] EXT4-fs (sda1): INFO: recovery required on readonly filesystem
[2.349015] EXT4-fs (sda1): write access will be enabled during recovery
[2.577641] EXT4-fs (sda1): recovery complete
[2.578072] EXT4-fs (sda1): mounted filesystem with ordered data mode
Begin: Running /scripts/local-bottom ...
Begin: Running /scripts/init-bottom ...

When I come out of that screen (ctrl-alt-del), the problem repeats.

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Ubuntu Installation :: Power Failure During Upgrade To Lynx - Kernel Panic?

May 2, 2010

I learned yesterday that doing a massive upgrade on my system while moving was a BAAAD idea.The upgrade process was going along just fine, it was all downloaded and was actually installing that last time I saw it. I unplugged my laptop to move a bookcase out, and completely forgot to plug it back in. After I got back from moving a load, I found my computer was off. I tried to boot up, and I got an error that kind of freaked me out. It reads as follows:

Code:kernel panic not syncing vfs unable to mount root fs on unknown-block(0,0)I'm able to get to grub just fine, and my windows partition loads up just fine, but any of the linux kernels fail similarly when I attempt to load them.I'm sure that I can fix this, I just have no idea how. Probably has something to do with a live cd.

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Ubuntu Installation :: Boot Failure After Kernel Update

Mar 25, 2011

After a kernel update ubuntu would not boot. So found this procedure using the live update cd. Update grub.cfg & delete everything down to but not including the first line that starts with 'menuentry' . Then boot works ok. A couple of weeks ago it started on my notebook. Is anyone @ hq listening & able to fix this problem permanently?

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Ubuntu Installation :: Power Failure While Upgrade From 9.10 To 10.04?

Aug 21, 2010

I was upgrading my ubuntu(9.10)/xp machine to ubuntu(10.4)/xp . but there was a power failure and was running in backup for 15 min. But after that the system shutdown automatically. Now when i boot, grub appears and after selecting the ubuntu partition i get a error saying cannot find device.

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Fedora :: Kernel Update Failure ?

Dec 13, 2009

even from a terminal it wouldn't update? Maybe because I put my bootsector as ro ?

I don't know here is the message:

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Ubuntu :: Installation Crashed After Power Supply Failure

Mar 8, 2011

My pc had hardware malfunction; power supply interruption. At this moment it is working stable. My Windows 7 installation is ok but Ubuntu Maverick which I used during crush has malfunction. When I start to boot it looks like this: I had to make a foto so you all can see the problem. all my important files are stored on Ubuntu partition..

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Fedora Installation :: Power Failure During Preugrade?

Jun 3, 2010

I had a power failure during the portion of the upgrade after the reboot where it was upgrading the packages.I tried restarting the machine with the upgrade line in the bootloader but it says it cant find the bootloader. So I rebooted into the working install and ran preupgrade again, and after it reboots, it gives an error the it cant find "root" of the previous installation.even thought the machine boots and works, I cant tell what state I am in. the boot option lines, shows a fc12 kernel designation and the "about this computer" says "release 13"Also the add remove software doesn't show anything.

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Ubuntu :: Boot Failure After Botched Kernel Update / Solution For This?

Mar 3, 2011

So I ran the update manager to install the latest kernel. It goes fine and was sitting at the restart prompt. I was playing minecraft and the entire system locked up - couldn't restart X or anything. Hard restart and I get a multitude of errors mostly dealing with not being able to find things in /dev/... It gives me a command line but I'm lost as to where to go from here to repair my system

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Fedora :: Boot Failure After Kernel Update / Log In As Usual?

Jun 16, 2011

I upgraded the kernel of my machine with a yum update, and now it will not boot. I am running Fedora 14 on a 64 bit machine. I really really need it to boot. Help!

I did Ctrl+Alt+F2 and managed to log in. I have kernel x86_64 installed. How do I log in as usual? I never get to a login screen.

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Red Hat / Fedora :: Boot Failure After Latest Kernel Update (12)?

Mar 14, 2010

Dual Boot: Fedora 12 and XP Dell 505I've had trouble with the latest kernel update.I updated a bunch of packages recently (including Xorg and kernel), and noticed a severe flickering after the update on my center monitor (Samsung T260 - the laptop display did not exhibit the flickering behavior). I backed out all the changes and started updating package by package. After I updated the kernel (again) I rebooted and here's where the fun part is -

I no longer get anything, except the cursor. No grub menu, no grub prompt. I rebooted and ran the rescue disk and followed the procedurery and point grub at the right boot partition - see here. However (obviously or I wouldn't be posting) that failed to work. I still get a blinking cursor and dead system on boot up.

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Ubuntu Installation :: Kernel Upgrade Failure

Feb 13, 2010

I'm running the 64 bit version of Ubuntu 9.10 on an AMD64 dual core platform with all the most recent upgrades installed. After the most recent Kernel upgrade version the computer failed to boot correctly. Extremely slow getting to the desktop and a general failure to preload any programs that I load on boot. I had to uninstall and revert back to the previous Linux headers which solved the problem. If it makes any difference I have the machine setup as an apache2 server along with my standard desktop environment.

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Ubuntu :: Recover From A Boot Failure?

Feb 14, 2011

Had Ubuntu 10.10 running fine on a Dell box, shut down as normal earlier in the week but now won't boot from GRUB (ends up with Busybox screen and initramfs(?) prompt). PC is a dual boot system which still boots OK into the XP partition on the same hard disk. I've tried all the other Unbuntu boot options in the GRUB menu (older kernels and the 'recovery' / non-recovery options) but all produce the same failure to boot into Ubuntu. I've searched the forums and tried various things but nothing has worked so far.

I tried the fix of booting from an Ubuntu 10.10 live CD, creating a mount point and mounting the relevant linux partition before using #apt-get update and #apt-get upgrade options to repair the installation. This seemed like a logical simple solution BUT the partition will not mount!! Further investigation using the Disk Utility app in the Ubuntu drop down menu indicated an error message along the lines of 'cannot mount Daemon inhibited' which I can't seem to find much information about fixing.

Using Gparted it looks like all the partitions originally set up on the disk are still there.

I put a lot of time into getting the system set up (scanners, printers, webcams and software) and would be really annoyed to have to do it all again if at all possible ...

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Ubuntu Installation :: Failure To Load Following Kernel Upgrade

Feb 6, 2010

I successfully installed Ubuntu 9.10 Netbook Remix on an Asus EeePC in a dual boot mode with Windows XP. Because the computer has no CD drive, I used a USB stick to download the files for installation. Twice now, after upgrading to a new kernel (2.6.31-17 and 2.6.31-19 I think), when rebooting after the upgrade and selecting Ubuntu from the operating system menu, I get a message:


along with a notice about limited shell commands being available. The ls command results in:

(loop0) (hd0,3) (hd0,2) (hd0,1)

In trying some of the other commands, I get a message that a linux kernel isn't loaded. The computer still runs Windows fine - or at least as fine as Windows ever runs. I'd like to recover Ubuntu without doing another full installation.

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Ubuntu Installation :: GRUB Failure After Update?

Dec 10, 2010

I grabbed an old laptop (a Dell Latitude D600) and installed Ubuntu 10.10 from the CD.Straight from the CD, it worked fine, including a reboot. I then ran an update, and now booting gives me the following message:

GNU GRUB version 1.98+20100804-5ubuntu3
Minimal BASH-like line editing is supported. For the first word,


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Ubuntu Installation :: Failure To Update Repository?

Aug 3, 2011

having somewhat of an issue when it comes to updating through Update Manager.

I get "Failed to download repository information Check your Internet connection."

details :W:Failed to fetch http://ppa.launchpad.net/jonoomph/op...source/Sources 404 Not Found, W:Failed to fetch http://ppa.launchpad.net/jonoomph/op...-i386/Packages 404 Not Found, E:Some index files failed to download. They have been ignored, or old ones used instead.

Running 11.04, no major modifications.

I will try to be as helpful as possible.

also, I believe I have a few hard drive faults- I have reformatted several times, but I still have issues in the boot process.

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Ubuntu Installation :: Sudo Apt-get Update Failure?

Aug 23, 2011

Can't seem to update apt-get. Can anyone help with this? I've attached a screenshot of the output of

sudo apt-get update After trying this once, I decided to verify that there was an internet connection. I pinged some IP addresses and almost each ping went perfectly. If that can be ruled out, what is the next step?

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Ubuntu Installation :: Wubi Boot Failure After Kernel Upgrade

Nov 27, 2010

I've been running Ubuntu 10.04 AMD64 on our home theater PC through a wubi installation. Yesterday the system update installed a new kernel and today there is a problem booting the computer so I'm reluctantly using Windoze to type this. there isn't much information: the computer has always booted fine before the kernel update. When I select Ubuntu in the boot menu the screen goes black and the computer restarts. No error messages, no GRUB menu, just a blank screen before restart.

Computer: Dell Hybrid 140G, Intel Core 2 Duo T5800, 4GB RAM

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Fedora Installation :: 14 KDE Failure After Update ?

Mar 20, 2011

I just completed the latest updates to Fedora 14 - I have mono and wine on the system as well - so they were also updated. Now the only screen I can get is the failsafe (bash).

How do I recover my KDE desktop? (I noticed there were some updates for the KDE as well). I suspect something has failed during the update (selinux was also updated).

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Ubuntu Installation :: Failure While Running Update Manager?

Mar 26, 2010

While running the update manager my system froze and all that I knew to do was power down and power up again. When I first started the update said 18.5 MB and on restart it said 17.x MB. I restarted the update manager and it failed with errors.

The last message says "E: Sub-process /usr/bin/dpkg returned an error code (1) A package failed to install. Trying to recover:" but no progress in 1/2 hour. If I try to copy the messages to the clipboard it says that cntl-c will abort the operation so I haven't done that. From the top of the "Details" there are about eight "Invalid archive signature" messages. I don't know how to proceed.

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Ubuntu Installation :: 10.04 Boot Failure After 2010-05-26 Update

May 28, 2010

After performing the periodic update on 2010-05-26 including libc, libc6 and libgtk2.0 my system fails on boot with the following error message:

run-init: /sbin/init: no such file or directory

Kernel panic - not syncing: Attempted to kill init! If I boot from the 10.04 live CD, all partitions on the hard drive are visible, mountable, and pass all file system checks.

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Ubuntu Installation :: Unable To Boot Up After Update Failure

Sep 30, 2010

This morning my update manager came up so I clicked to update. About halfway through the update an error message popped up & said to restart my system. I restarted my system and now have a black screen with the following message:

mountall: symbol lookup error: mountall: undefined symbol: udev_monitor_filter_a


init: mountall main process (344) terminated with status 127

I read around earlier & tried to use a Ubuntu disk and reboot but I have the same error.

I'm using a Dell Inspiron computer, it's just over a year old. I keep up with all the updates but unfortunately cannot say for sure which updates were taking place because I just hit the update box.

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Ubuntu Installation :: Synaptic Update Failure-lucid 10.04

Jun 9, 2011

When I try to update my system(10.04 Lucid) it gives me this error message.

Could not initialize the package information

An unresolvable problem occurred while initializing the package information.

Please report this bug against the 'update-manager' package and include the following error message: 'E:Encountered a section with no Package: header, Problem with MergeList /var/lib/apt/lists/archive.ubuntu.com_ubuntu_dists_karmic_main_binary-i386_Packages, E:The package lists or status file could not be parsed or opened.'

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Ubuntu Installation :: Can Recover Data After 'kernel Panic Not Syncing Vfs Unable To Mount Root Fs'

Aug 5, 2011

I need to recover some data of the 'home' directory after kernel panic.I was upgrading ubuntu 11.04, [COLOR=blue !important][COLOR=blue !important]installed[/COLOR][/COLOR] on usb.Failed to upgrade because the main partition had no more space. I moved one directory of about 100Mb to other partition, but it seemed that in the main partition didn't appear those 100Mb free. i restarted the computer expecting those 100Mb free. And kernel panic.

[ 0.789567] Kernel panic - not syncing: VFS: Unable to mount root fs on unknow-block(8,1)
[ 0.789646] Pid: 1, comm: swapper Not tainted 2.6.35-22-generic #33-Ubuntu
[ 0.789716] [<c05c6468>] ? printk+0x2d/0x35

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Ubuntu Installation :: Kernel Installation Failure?

Jan 8, 2011

I recently realised that I could use Linux to "revive" old machines, and have set it as my goal to actually get all old PCs in my house working again using different variants of Ubuntu, while learning how to use the OS in the process.And now I got stuck while installing the OS on an old Laptop. It's an HP Omnibook XE-3, with a Pentium III 1066 MHz cpu and, supposedly, 256 MB of RAM. However, for some reason the computer only reads 248 MB, so I've been forced to resort to an alternative disc installation. Since the old HP has a broken CD tray, I've been using an external hard drive to boot the image, created with Ubuntu's startup disk creator, instead of an actual CD rom (I doubt that makes a difference, but just in case)

There are two main issues which have really left me with no obvious (for a newbie) alternatives. Firstly, when the text installation procedure reaches the "Installing base system" part, an error message appears saying that no kernel could be found on my Drive, so the installation fails. If I try to skip installing a kernel temporarily, it lags horribly and produces multiple errors, dying shortly after.The second problem is that I can't actually do a command line boot to try and manually figure out a way around this. Selecting the command line installation mode on the main installation menu changes nothing, and it's a normal text install which runs instead.Unable to access the command line,why my kernel is apparently missing.

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Fedora Installation :: FC 13 Boot After Update Failure?

Aug 10, 2010

I was having problems performing an update yesterday that failed on dovecot dependancies and after a few tries I removed dovecote (it wasn't being used) from the installation and tried again. Everything seemed to be going OK then the update (about 160MB) hung and the screen went black a few times and I think then shutdown automatically. The PC then fails to reboot and displayes the message "Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)" I have tried to get the PC to boot with the super grub disc but without success (probably my in experience) I have also tried a suggestion from one of the forums to start the PC with a live CD and typed su -c 'grub-install /dev/sda at the terminal again without sucess. I have looked at the files with the live CD there are grub, menu and kernel files there (some are in lost + found, b ut don't know wheer these should be so have not changed anything.

Is there an easy way for the in-experienced to repair the boot process ?

The PC is a pentium 4 running Fedora 13
There is a 200MB boot partition formated as Ext3
and a 19GB partition formated as a LVM with Ext4
There is a CD drive but no DVD

Everything has worked OK for the past year through two online upgrades.

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Ubuntu Installation :: Update Failure On .ICEauthority And Separate /home

Mar 26, 2010

I created a separate /home partition after installing Karmic on a new computer using this HowTo :


I copied all the files from /home/user using

find . -depth -print0 | sudo cpio --null --sparse -pvd /new/

On booting after the change, the new /home is correctly on a separate partition BUT during boot I get a message :

Could not update ICEauthority file /home/user/.ICEauthority

I checked and the ownership and permissions for /home/user/.ICEauthority are correct. The suggested remedy of deleting the file & waiting for it to be recreated doesn't work either. But when I compare other hidden files in the new /home/user directory, quite a few now have their ownership changed to root. & I am unable to connect to my external monitor because of a permission problem (probably connected).

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Debian Installation :: Kernel Failure After Lenny Install (on Core I7 870)?

Jan 5, 2011

I just installed the lenny (amd64) on my new core i7 870 computer (with netinst), but the kernel failure message appeared everytime I booted into gnome. I don't know how to solve this problem. Sorry I don't have much experience with installing linux, though I have been its user for a few years.

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Ubuntu Installation :: Update Broke GUI Login - Gnome Power Management

Sep 1, 2011

Here's the error I get:
"The configuration has not installed correctly for Gnome power management".
Updated my 11.04 install via the update manager last night. When I turned my computer on today it wouldn't boot into the normal gui desktop. Where my normal login screen usually appears a different login screen appears with my username. I login. Screen flickers black for a few seconds and a page with a ton of text shows up for a fraction of a second ( too short of a time to read a single word). more flickering. Then I am returned to the slightly different login screen once again with the error. I tried booting into failsafeX gui mode. Same issue.

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Ubuntu :: Disk Corruption After Power Failure?

Jan 14, 2011

While using my computer the other day (I was sending an email) it suddenly turned off. I didn't get any low power warning, but I was running on battery and had my iphone charging from a USB port.

As I didn't think there was low battery, I just turned it back on again. As it was booting I saw the battery light flashing, indicating low power. I went to get the charger, but before I got it, mid boot-up it turned off again.

This seemingly damaged something hard-disk-wise.

Upon turning it on again it dropped into busy box with some message similar to this:


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 commands


That's not the actual message (copy pasted from another post) but the message is VERY similar to that.

If I "exit" busy box, I get a load of message about "kernel panic" before it freezes up.

I have booted a live USB (what I am using now). I thought since it wasn't cleanly unmounted, simply mounting and unmounting would do the trick. I was wrong.

ubuntu@ubuntu:~$ sudo fdisk -l
Disk /dev/sda: 250.1 GB, 250059350016 bytes
255 heads, 63 sectors/track, 30401 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes


I had previously ran e2fsck (after checking it was unmounted) but it wouldn't run also because it was reporting that the device was already mounted, busy, or being exclusively used by a process.

I don't want to do any more for fear of causing further damage.

I am astounded that such damage can be caused so easily!

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Ubuntu :: 10.10 Won't Boot After Main Power Failure

Feb 11, 2011

Running 10.10 After a main power failure I can't boot.

It says:
[sdb] Attached SCSI removable disk
[sdc] Attached SCSI removable disk
[sdd] Attached SCSI removable disk
[sde] Attached SCSI removable disk
and stops.

I get a (initramfs) prompt and have no idea what to do with it.

Allready tried to install 10.10 again from a CD. But it also hangs immediately when it starts to install. The liveCD feature works OK and I can access the hard disk. I tried to update the initramfs with the liveCD but it says I can't write since I have only "read-only" access. But if I do "sudo nautilus" I have full access to the disk.

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