Ubuntu Installation :: Recoverring From A Botched Kernel Upgrade?
Feb 26, 2010
I admit, my knowledge of LINUX isn't that great. That said, I thought I'd be able to pull off a basic upgrade (clean install of a whole new kernel, not patching the existing one) from the latest 2.6.31 in the ubuntu repo (I think it's 2.6.31-19.54 to be exact) to 2.6.33 (kernel --latest-stable) from source. I got all the config done, compiled it, and updated GRUB, rebooted to find that it had a "2.6.33.old" entry in the menu (not particularly relevant, I admit) even though I only ran the "make install" command once. Anyway, when I selected the non-old entry, it churned for a moment, gave a couple of weird screens for <1 sec each, and then gave me an error about a missing graphics module (I'll look for how to automate loading modules on my own, and see if I can port the existing NVIDIA module from my working kernel to the newer one) and gave me a list of options like "boot into graphics safe-mode" "boot to login shell", etc. and the mouse wouldn't work, so I had to use the keyboard to work the screen (i chose the shell login, since I didn't feel like seeing ubuntu's butchered face while it's in "graphics safe-mode"). I managed to get the computer to boot into the stock kernel, and am now wondering the following:
1). Do any of you guys out there think it's worth trying to save this kernel update?
2). How do I go about removing the "2.6.33.old" kernel & entry? (i've tried synaptec, the "make remove" and "make auto-remove" commands with no success.)
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Jun 6, 2010
my left mouse button on my Acer laptop stopped working out of nowhere. While searching for a solution I started the upgrade process. Without thinking I restarted during the upgrade installation, which has apparently caused some big problems.I cannot boot any longer. I get the Ubuntu splash, then a slowly flashing black screen.I am able to boot to the Live Cd without any problems, but I'm not sure what to do from there.I'm been searching the forums, but can't find anything.
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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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Jun 13, 2011
Botched upgrade to 11.04, but learned enough about Unity that I don't want to go there. (also installer to put second new 11.04 wants to erase everything on main drive). Can reach 10.10 -boot from prior Linux - but mouse and internet are gone. Everything else seems to work and I can get to System and terminal with keyboard shortcuts, but need to reinstall mouse (Logitech M110) and internet. Can't find an Xorg.conf file or a /dev/input/event3.
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Jul 26, 2010
If i use yum update option it upgrades to latest kernel but i only want to upgrade to kernel-2.6.31.6.
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Jun 18, 2010
I was using 2.6.28-14 kernel version, it update me to 2.6.28-15. Now I have upgraded kernels many times, not first timer, but this is a first to me. So I have this wierd system setup, don't ask. Where I use lilo instead of grub, just take it as it comes guys, I have to. At any rate, it upgraded all fine, and I restarted, play the blues I got a "No setup signature found" error and lilo won't boot. So I did some searching on web and everyone says to boot up CD and re-install lilo. Well with grub I've done this many times, no prob bob, but lilo won't work.
So I used my super auto grub CD to try to re-do things. Since grub config and grub was still installed on my Linux partition I tried it right. No go of course, grub says it can't find the partition nor can it mount it. So I tried the beta of lilo on the grub cd and it don't work either. Botched it up worse, first it wouldn't do anything on my second drive, just sat there black screen. Then I did it a second time, let's screw it up some more right. Now it doesn't even find a boot loader in the MBR ha ha.
So at any rate, how in the sam heck do I fix this thing? Short of downloading 10.04 and re-installing everything?? Don't want to do this, too much work when I can just upgrade and keep my stuff installed and setup. So I tried running jaunty from CD and re-loading lilo. So everything is working fine right, I mounted drive and apt-get install lilo and ran lilo. So lilo even telling it what config file to use and where won't find things and won't re-install. So just for grins, even though I thought it wouldn't work I mounted my second drive linux partition, the one with the boot info on it, you ready, to root "/". Then I couldn't unmount
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Feb 11, 2010
my os is ubuntu 9.10 i need steps
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Aug 2, 2010
The new kernel has some features I think would be useful for me, especially the power management of ATI gaphics cores (I run crossfire 2870).
how I upgrade the kernel? I just wanted to check that I am doing the right thing. I had intended updating with apt-get using the age old instructions.
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Nov 28, 2010
I'm running 10.10 with an NVIDIA card which has a customised xconfig file (to allow use of an EDID file). This was working OK until I ran a set of security updates which included a kernel upgrade. Now when I try to boot the machine, it goes straight to terminal mode and will not run the GUI.
I recall seeing something about this before, but can't find the thread. It's a fairly simple fix to get the graphics running again, but I can't remember what the solution is.
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Aug 10, 2011
I want to upgrade Lucid kernel to enable TRIM.
I tried this guide but no dice:
Code:
Some packages could not be installed. This may mean that you have requested an impossible situation or if you are using the unstable distribution that some required packages have not yet been created or been moved out of Incoming. The following information may help to resolve the situation:
The following packages have unmet dependencies. linux-headers-generic-lts-backport-maverick: Depends: linux-headers-2.6.35-30-generic but it is not going to be installed E: Broken packages
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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 2.6.31.20 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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May 12, 2010
I performed an upgrade via the Update Manager from 9.10 to 10.04 LTS and it seemed to go flawlessly. However, now I cannot seem to be able to remove the old Kernel from 9.10 in the package manager. It does not even show 2.6.32-21 as installed but it still shows the old Kernel in Grub. I did a sudo update-grub but it was to no avail.
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Dec 6, 2010
I search, and everything I find seems to be "old" information that no longer works.
I currently have,
linux-image-2.6.32-21-generic/lucid uptodate 2.6.32-21.32
linux-image-2.6.32-22-generic/lucid uptodate 2.6.32-22.36
linux-image-2.6.32-23-generic/lucid uptodate 2.6.32-23.37
linux-image-2.6.32-24-generic/lucid uptodate 2.6.32-24.43
[Code]....
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Jan 22, 2011
I wonder if others have upgraded their Lucid kernel using the deb [URL]..repository. I have been using the repository for some time now without any apparent problems, and have gone from 2.6.36-1, through 2.6.37-10, and am now on 2.6.37-12.
All of these seem to work with no problems at all, but I am just wondering if other users can also report success, or if there are any trip-ups that might occur. I still keep updating the "standard" kernel from the main repos, ie 2.6.32-27, so I have that as a backup, but I'm just very curious about other people's findings.
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Mar 3, 2011
I am running Ubuntu 10.10 on a Lenovo T60 and am having problems waking up from sleep every time I update the kernel.
I just got the upgrade from 2.6.35.25 to 2.6.35.27.
The problem I see now is that I get this message when coming back from sleep (I coped it down since after the message I couldn't do anything else):
pciehp 0000:00:1c.0 pcie04: Device 0000:02:00 already exists, cannot hot-add
pciehp 0000:00:1c.0 pcie04: Cannot add device at 0000:02:00
I checked my pci listing and the device on 0000:02:00 is my ethernet adapter:
shahars@shahars-ThinkPad-T60:~$ lspci | grep 02:00
02:00.0 Ethernet controller: Intel Corporation 82573L Gigabit Ethernet Controller
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Mar 5, 2011
I read recently about security flaws in the ubuntu kernel, and when I checked my kernel, it is 2.6.32-29-generic. I looked in synaptic, and I have the linux-generic meta-package - which should ensure upgrade to the latest kernel, and yet this is not being updated when I run update manager. There is a linux-image-2.6.35-25-generic, but the advice is not to install this directly (to avoid breaking dependencies, etc.), but to install the meta-package instead. Yet, the meta-package doesn't seem to be doing what is should do.
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Jul 22, 2011
It seems that i am stuck using the 2.6.38-9 kernel, since no matter what i try, i can't update. I have had this problem since 2.6.38-10, but figured that the problem probably would solve itself after the next kernel update, sadly that was not the case.
I have had some worrying error-massages from dpkg about broken packages, which i believe might be the source of this problem, as it reported that the package "linux-image-generic" was broken. I removed the postinstall script from /var/lib/dpkg/info and updated both dpkg and aptitude.
I am not getting any more error messages, and if i look in the synaptic package manager, i can see that kernel 2.6.38-11 is indeed installed, yet i can't select it at bootup, even though i have tried to manually update grub.
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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:
sh:grub>
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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Apr 28, 2010
from Ubuntu 8.04.2, kernel 2.6.24-24-lpia to Ubuntu 8.04.2, kernel 2.6.24-27-lpia Drivers Lost / Missing: Wireless via USB, Printer, Webcam, Sound, etc. No indication whatsoever there would be problems with the upgrade except for the changes in /boot/grub/menu.lst which I merged by hand to avoid problems.
Please advise:
A) What to do next?
B) Where in the Ubuntu bugs do I open this bug?
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Aug 7, 2010
I'm noticing that maybe twice a month the Update Manager is asking me to upgrade my kernel. Currently it's asking me to move to 2.6.32.24.25. Is this the smart thing to do? Are these primarily securtiy updates to the kernel?
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Sep 9, 2010
I have a Dell Vostro v13 laptop that was shipped with 9.04. I upgraded to 9.10 and it told me it could not upgrade the kernel. The error message said something about a problem with the kernel file. I can still run the system and have not rebooted since the upgrade, but I need to be able to reboot eventually.
The System Monitor says:
Release 9.10 (karmic)
Kernel Linux 2.6.28-19-generic
Everything I have read says that 9.10 includes kernel 2.6.31. So I am afraid to reboot now.
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Dec 2, 2010
I did a routine update of my ubuntu 10.4 (in wubi vista) to the latest kernel (something -26) and installed a java plugin for firefox. After a reboot, i open up the "Ubuntu" entry and i see a message flash accross the screen (something about hda,0,0 or sda im not sure) then it just reboots the PC. No command line or anything. No need to say im pretty screwed
My question is, is there any way to get my files off of wubi? Or even better can i restore Ubuntu to working again? P.S for some reason the two times i have tried to run a live CD on this laptop, it has corrupted vista.
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Jan 25, 2011
I've been trying to get Ubuntu on my beloved 4 year old Acer desktop that's been chugging like a tank. However, after either a fresh install or upgrade, I would get the following error:"Kernel panic - not syncing: VFS: Unable to mount to root FS on unknown-block(0,0)".I've looked here and there, and one of the issues it would seem is the kernel not recognizing my hard drive if I'm correct. One of the suggestions was to upgrade the kernel however, I have no idea how to do such a thing if I can't get into the OS.
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Feb 4, 2011
I used Ubuntu 9 (Karmic Koala) for some time with no problems. When I upgraded to Ubuntu 10 (Lucid Lynx) I ran into graphics issues.After I log in, the screen scrambles (a purple/green mess)--impossible to decipher anything, although I can get out by marking the spot on the screen to click for a restart, so Linux is working behind the scenes.If I start in recovery mode with basic graphics, I have no problems at all (other than limited functionality). If I start the old 2.6.31-22 kernel, I see a bunch of "unmountable" errors in the startup script, but I can use Linux normally with no apparent problems. I'm running an IBM ThinkPad A30 with ATI Mobility graphics. Just to reiterate, the screen looks fine until I log in, at which point it goes bonkers. I've tried lowering the resolution, to no avail. I'm not running any proprietary drivers. What do I need to change in order to fix this?
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Feb 13, 2011
I had problems with booting my PC after kernel updates several times. In the past I just reinstalled Ubuntu and after several tries with running Update Manager things were working again.This time I applied another recommended set of updates, including a kernel upgrade and got the usual "Kernel Panic - not syncing: VFS: Unable to mount root fs on unkown-block(0,0)"After booting from a LiveCD and running boot_info_script I rebooted again and this time I am getting tons of errors which seem to be generated while running grub. After a few minutes of 'error: syntax error' and 'error: Incorrect command' scrolling through my screen, grub gives my a grub> prompt... Not what I expected!Here is the output of the boot_info_script:
Code:
Boot Info Script 0.55 dated February 15th, 2010
============================= Boot Info Summary: ==============================
=> Grub 2 is installed in the MBR of /dev/sda and looks on the same drive in
partition #1 for (,msdos1)/boot/grub.
=> Grub 2 is installed in the MBR of /dev/mapper/isw_cagifdjehe_Volume0 and
[code]...
I have two RAIDed disks (mirrored and showing OK during POST). The disk shows above as a6071eb5-6fc6-45b3-babb-c1a2156278d7. Ubuntu 10.10 installs fine from a LiveCD, but gets broken by kernel updates. I can see the original 1 TB disk when I start with the LiveCD and I can access all the files.
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Mar 23, 2011
Can I upgrade lucid lynx kernel from 2.6.32 to 2.6.38? If so, how do I do it from command line?
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Apr 29, 2011
I ran an upgrade to 11.04. It boots fine into KDE, then panics (flashing Caps lock) about a minute later. The Live CD runs fine. Here's the part of my syslog that looks related:
[Code]...
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Feb 10, 2010
I am getting a black screen on the latest kernel upgrade 2.6.31-20. My computer completely boots up, but goes black after a minute or two. For now, I am booting up with the previous kernel.
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Mar 3, 2010
Yesterday I upgraded the kernel from 2.6.24-26-generic to 2.6.24-27-generic (I'm still using Hardy Heron). After upgrade I uninstalled the previous Nvidia driver installation:
Code:
sh NVIDIA-Linux-x86-96.43.13-pkg1.run --uninstall
and did a install with
[code]....
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Jun 30, 2010
Upgraded to latest kernel 2.6.32-23. Ubuntu 10.04 I run a twinview video configuration of 2 screens @ 1920x1200. On booting, X wanted to go to low res for the session, which reverted to one screen (that is, I lost the twin view), but actually kept the 1920x1200 res on the one. I restarted X on got both screen working with the second as a replica of the first. Something has changed in this version of the kernel. Reverted to the previous Kernel version (22) and all is sweet (twin view is back working). But this can only be a temporary workaround.
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