Ubuntu Servers :: LTS Upgrade Via SSH - Crashed ?
May 5, 2010
I have looked around a bit but I can't even get my head around what to do next.
I attempted to upgrade my headless Ubuntu server from 8.4 LTS to 10.4 LTS last night. I used screen so that I could reconnect because the update said that although SSH may crash, I should be able to get back on via port 9004. When I tried to get back on this morning I could not SSH in via port 22 or 9004, so I did the only thing that I felt that I had left--I rebooted. I have since had to dig out an old monitor and keyboard and put a head on it to try and get this problem resolved.
When I boot the computer, GRUB gives me the option of kernel 2.6.32-21-generic-pae, but when I pick that I get the following error and the Caps and Scroll lights on the keyboard just blink.
Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)I next have the option of kernel 2.6.32-21-generic-pae (recovery mode), but when I choose that option I get a screen full of time dated lines that do not make any sens to me and that same previous error message somewhere in the middle of it all.
If I try to boot to any of the old kernels, then I get a screen full of error messages and get dropped to an ash shell, BusyBox v1.13.3
Obviously the computer was in the middle of asking me something very important when I rebooted, but without being able to log in, I was never going to find out what that was. I guess I assumed that it wasn't a big deal because all of this was probably sorted out already as a possible chain of events on a headless server upgrade.
The bottom line is that my server no longer works and I do not have a clue as to how to get it up and going. If you have ever experienced this situation and have gotten through it or you actually do know something about this situation, please help me out.
My server is no longer headless, but I am now definitely clueless.
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Sep 1, 2010
My laptop crashed in the middle of upgrading from Hardy Heron to 10.04. Now I can't boot at all. It'll load grub and let me pick an older kernal which gives me a reasonably familiar shell or I can let it go to the latest and it gives me some strange shell with very limited commands.
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May 5, 2010
I was upgrading to 10.04 through the update manager and my pc froze during the install, and I mean dead stop. It's happened a few times since I've come home from college for the summer, but I thought it was just the game I was playing or something so I wasn't concerned.
Now when I try to boot it gives me errors mounting /media/1 and /media/2 and various other others regarding NTFS (yet linux doesnt use NTFS so I'm confused...). When I hit any button that's not a letter (Esc, Delete, Backspace, etc.) it flashes over to a screen that says 10.04 with 4 dots underneath. Similar to what the loading screen should be, yet obviously not the loading screen.
Is there anyway I can install/upgrade this system through a LiveCD or something similar? I can't boot to Linux at all now, but I can boot to the Windows partition on the same hdd.
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Apr 29, 2011
I was minutes away from finishing my upgrade and the screen went black and the mouse stopped moving. I left it for about 10 minutes to see if it would recover but nothing happened. I had to restart and now I've got nothing, not even a terminal prompt. If I start normally, I get a blinking white cursor (I cannot type) that never goes away and if I try recovery mode It hangs.
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May 6, 2011
I have run 10.04 for some time with no issues. I was presented with the system option to upgrade to 11.04. This I did but the upgrade crashed out halfway through the install process, with a 'too many errors to continue upgrade, system maybe unstable'.
On re-boot I am now presented with;
And the system waits for the selection.
So my question is - how to recover this ?
I can get to a shell (#) and see files on the drive (using ls) so I know the drive hasn't died.
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Mar 24, 2010
I was trying to upgrade to 10.04 (from 9.10 x86_64)when the update manager crashed without any warning or errors. it happened while the packages were being installed, as a result of which i could no longer login into gnome. so i logged in using the terminal and since i had cleaned the cache before upgrading i ran sudo -i dpkg *.deb (there were a large number of deb files in it, so i thought those were the upgrade packages) but the process couldn't be completed. it said that there were too many errors. after rebooting, gnome doesn't start and i can see lucid development version in the terminal. it also didn't detect my usb keyboard.do i have to reinstall ubuntu.
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Nov 9, 2010
I was upgrading from 10.04 to 10.10 when my laptop crashed due to a HW issue not related to upgrade. But now when I start:
1) The laptop, it boots up till the point GDM log in screen is displayed without any log-in option. The system does not respond to any keyboard or mouse actions.
2) when I try to recover (recovery mode), the boot process comes til a point where it says "Console: switching to color frame buffer device 180x56"
And the prompt just stays there. It does not not drop to terminal. When I choose an older option in the grub, I do get dropped to initramfs prompt. How to restore my machine. re-instillation is not an option as I have some data I need in the home directory.
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Oct 10, 2010
I started the upgrade to 10.10 and now the upgrade process is trying to get some input in the orange window. Problem is I can't bring that window to the front because metacity crashed. When I try to start metacity from a console it dumps core. How do I continue the upgrade?
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Oct 14, 2010
I was upgrading from 10.04 to 10.10 and the computer completely froze and I restarted it thinking I would be able to restart the update where I left off (I'm new to ubuntu). However when I restart I can't get anywhere, if I boot normally the ubuntu screen comes up and then it stops with the computer name in the middle of the screen and thats it (can't do anything i can't get into shell via ctrl-alt-f1 etc..) if i use the recovery from the grub menu it loads a bunch of things then stops i can't type anything but I can switch using ctrl-alt-f1 and ctrl-alt-f7 but I don't see anything except:
under ctrl-alt-f1 the last line reads:
[2.711773] composite sync not supported
under ctrl-alt-f7: the last lines read
fsck from util-linux-ng 2.17.2
init: udevtrigger main process (421) terminated with status 1
[code]....
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Apr 9, 2011
I tried to upgrade two hardy them to 10.4 lcui and failed miserably. after upgrading, both fail to finish rebooting process; they stuck at maintenance mode. are there ways to rescue them? something went very wrong...
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Oct 17, 2010
i wanted to upgrade my ubuntu system to meerkat beta via update manager like i upgraded it the last 5+ times.
a bug showed up that i can recall from updating files previously: some software installtions via update manager triggered the programm nicotine+ (i think is was something like man-lib or man-db that, when called by the installtion programm, would trigger nicotine too). since i can close that nicotine+-window and the installation process isnt bothered any further i didnt mind.
now with this upgrade, i had to close nicotine+ around 5 times since it got triggered together with some of the files that got updated/installed in this upgrade.
and then what happened: GError something about an "unrecognized image file", it concerned a py file that was named "nicotine"...
so i waited for 10 mins and figured out that the update process had stopped. i couldnt resist and logged out, wanting to delete nicotine from my system and to reinitialize the upgrade. well, nothing works since then, grub only lets me choose different kernels which didnt help much as there was no way to startx.
my question is:
how can i reset this upgrade mess or bring this pending upgrade to an end? can i do an upgrade via network, based on the emergency shell that comes up in some kernel-recoverymodes? or should i burn a livecd, boot it and then do what? repair? try another upgrade? delete nicotine?
having 'consumed' ubuntu for years now i still wouldnt know what else to do then posting here.
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May 8, 2010
So I attempted to Upgrade 2 days ago from 9.10 to 10.04. I started the upgrade and left my computer alone as it said it would take several hours. When I returned to check on it, It told me the the installation had failed and it was attempting to roll back to the previous installation. Afterward I couldn't access anything on my computer. I'd click a icon and it wouldn't do anything. I manually restarted it and was greeted with a message that it couldn't boot because there was no mount specified.
Since I had backed up all my files I tried to just reinstall ubuntu. However even after I reinstalled I'm greeted with the same message.
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Mar 1, 2011
Today I was moving 25,000 files from my projects folder from a windows box to the linux box when I noticed it crapped out about 60% of the way done check the server console saw a crash report all over the screen so I hot the power button and rebooted server is back up no file loss so no problem but I thought I would report a problem with SAMBA and copying vast numbers of files is at issue after the restarting the server, samba still did not come up so I restated it and it is back up fine.
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Aug 2, 2010
My server got crashed due to some power glitch i am somehow able to get the access to the /var folder i have copied all my webpages to a new system from /var/www folder, and i have install LAMP server but still i am not able to access the database from phpmyadmin.
I have copied the database to /var/lib/mysql..in phpmyadmin it has initially given there is no data base when i replaced the mysql folder but now after a restart it is giving me #2002 cannot log in to the mysql server even undoing the things is giving me the same error...
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Aug 2, 2011
I have a ubuntu 11.04 LAMP server at home.
Its runnign a few small sites on a drupal CMS.
This morning I found none of the sites were responding. The server itself sounded like it was thrashing the hard drive.
It wasnt responding to the FTP client or SSH connections. Web pages just sat there like they were loading very slowly but never actually loaded.
How can I find out what went wrong. I dont have a massive amount of experience with linux, particularly the server variant.
Its worried me a little that the drupal report shows several page not found errors like someone (a bot maybe) was trying to see what php setup files they could access.
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Jan 16, 2010
I have a production mdadm RAID1 v.8.04 Ubuntu Server and would like to upgrade to a PAE enabled kernel of 8.04 Server. I have 4GB RAM and would like to extend to 6GB RAM in the near future. I remember reading about a simple method of upgrading the kernel, but cannot find much info on the net. Has anyone upgraded and what performance gains were found with the PAE enabled system?
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May 3, 2010
After upgrade to Ubuntu Server 10.04 LTS, ufw has started blocking some legitimate HTTP and FTP contacts. What can I do to tell ufw not to block any HTTP and FTP requests.This is what is shown in messages:
Code:
May 3 11:07:48 server kernel: [] [UFW BLOCK] IN=eth0 OUT= MAC=00:00:00:00:00:00:00:00:00:00:00:00:00:00 SRC=192.168.1.100 DST=192.168.1.50 LEN=60 TOS=0x00 PREC=0x00 TTL=121 ID=9979 DF PROTO=TCP SPT=60191 DPT=80 WINDOW=16560 RES=0x00 ACK URGP=0
UFW has these settings:
[Code]...
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Oct 11, 2010
some time ago I've installed Ubuntu LTS 10.4.1 on my linux server because I tought that the long-term-support version was the server version... then, I realized that there was also an Ubuntu Server edition... so, is it possible to upgrade my current installation to 10.10 Server edition? what should I do?
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Apr 30, 2010
Version 9.10 had been installed via the alternate CD as the LTSP Server Edition. In place upgrade to 10.4 completed normally via Update Manager. However, LTSP terminal boot now fails with error "Forbidden directory" and "Access Violation". The following was found . Ubuntu 10.4 uses tftp-hpa. Either this is a change from Ubuntu 9.10 or the default behaviour of tftp-hpa has changed. So now, the filename argument given in /etc/ltsp/dhcpd.conf must include the full pathname. The previous requirement was to exclude the chroot path. If this is documented somewhere, I missed it. And after modifying /etc/ltsp/dhcpd.conf, do not forget to restart the dhcp daemon $ sudo /etc/init.d/dhcp3-server restart
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May 29, 2010
I have a Ubuntu Server machine that I can't get to 10.04. Sometime in the past I updated it to 9.04, but perhaps something went wrong. When I do a do-release-upgrade, it tells me there are no upgrades available. I tried a bunch of things but no luck, so I installed gnome to try the gui update manager on the console. When I start it, it first tells me that my distribution is no longer supported and that I should update. It gives me the button that says 9.04 is available, but after I click it I'm told that there are no new versions available.
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Dec 31, 2010
About 3 months ago I upgraded from 8.04 to 10.04 and the experience has since been very problematic in regards to overall performance. The problem is mostly with MySQL, but I have also noticed that the smallest amount of disk IO slows down the system a lot. I was expecting a slight performance improvement before I upgraded, but instead I got a very big opposite. I tried tweaking the MySQL server settings, but the improvement has been minimal.
At this point I am going to have to make a new system with something like Centos (I've heard good things about it's performance). Before I do, I want to give Ubuntu one last chance and ask if anyone knows anything that can be done to fix the performance issues. At the very least go back to something that is comparable to 8.04?
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Feb 9, 2011
I've two servers working quite happily, but I'm aware that support for Jaunty/Jackalope is ending. One servers is a Samba PDC the other is a mail server.I obviously don't want to break either of them. What is the recommended procedure for upgrading from 9.04 to 10.04 LTS can I do it directly and if it fails can I just use my backup over the top of the upgrade to effectively downgrade?
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May 5, 2011
How can I upgrade my kernal from 2.6.24.x to 2.6.38.x? I am running Ubuntu Server 8.04 LTS
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Sep 1, 2011
In order to pass PCI compliance I need to upgrade our webserver from php 5.3.5 to php 5.3.6. I found this: [URL] however it doesn't seem to work. My best guess is due to the fact I have 64bit server. Is there something else I can do without going through a compile?
Distributor ID: Ubuntu
Description: Ubuntu 11.04
Release: 11.04
Codename: natty
Linux 2.6.38-10-server #46-Ubuntu SMP Tue Jun 28 16:31:00 UTC 2011 x86_64 x86_64 x86_64 GNU/Linux
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Feb 24, 2010
I tryed to update ubuntu server from 9.04 to 9.10 a few days ago, but do-release-upgrade failed with the following output.
serv@server:~$ sudo do-release-upgrade
Checking for a new ubuntu release
Done Upgrade tool signature
Done Upgrade tool
Done downloading
[Code]....
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Apr 6, 2010
I upgrade one of my servers from 8.04 to 9.04 and now libvirt is not working anymore.
The funny part is that the virtual machines are working perfectly because I can access them via ssh/ftp/etc.
I just can't access the libvirt interface. For example, if I issued (as root):
virsh -c qemu://system
I halts with Connecting to uri: qemu:///system error: failed to connect to the hypervisor
Is there a trace/debug that I can verify ?
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May 7, 2010
Code:
* Starting ClamAV daemon clamd
WARNING: Ignoring deprecated option MailFollowURLs at line 33
ERROR: Can't initialize the internal logger
ERROR: Can't open /var/log/clamav/clamav.log in append mode (check permissions!).
...fail!
[Code]...
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May 11, 2010
Just wanted to point this out in case anyone had the same problem i did. Following the directions here:[URL]The final step on upgrading 8.04 LTS to 10.04 Server is:sudo do-release-upgrade --devel-releaseThis doesn't work![URL]says to use --proposed, which WORKS
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May 17, 2010
After digging around trying to figure out how to upgrade my local apt-mirror to 10.04, I figured I would share it here so anyone else who does this, can do it with ease. It requires a few steps, and editing a couple files, but the process is relatively painless.This assumes you have an apt-mirror already running on your server. Also it assumes you're using /var/www/ubuntu as your root where all your packages are stored.
The first step is to visit http://changelogs.ubuntu.com and download the meta-release packages. Create a new directory, /var/www/ubuntu/upgrade, and drop the files there.On the client's end, a single file needs to be edited, /etc/update-manager/meta-release. Change the URI's in that file to the URI of your apt-mirror and run your update manager. Your upgrade will start, only asking if you want to change your paths in your sources.list. Agree to it, and the packages will download and configure.
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Jul 27, 2010
I have a server that started out at 8.04 LTS was upgraded to 8.10 and to 9.04. When I upgraded to 9.04 sudo and ssh stopped working.
Fortunately I have a root account and can login as root or su to root.
I suspect this is the result of changes I made to nsswitch.conf and pam.conf to get winbind working.
I was hoping for a fix by upgrading to 9.10, but that didn't work. I want to upgrade to 10.04 LTS, and stay there but I think need to resolve this first.
auth.log reports failed password for ssh attempts and authentication failed for sudo. I am at a loss to determine where the problem is and how to track it down.
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