CentOS 5 :: Xen Not Starting - After Doing A Regular Software Update On A 5.5 Box - And Rebooting

Jun 21, 2010

After doing a regular software update on a 5.5 box (and rebooting), I now have problems starting xen (version "xen-3.0.3-105.el5_5.3.x86_64").

Running "/etc/init.d/xend start" yields no output, and checking the script, I see that the script halts if "/proc/xen" doesn't exist.

Checking the filesystem, I find that the "/proc/xen" entry is indeed gone. Restarting the CentOS box does not help.

Should I reinstall Xen? If so, should I remove any portions of Xen before I do?


When I run /usr/sbin/xend I get:

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CentOS 5 :: Freezing At Starting Xend After Update

Apr 18, 2011

I had a server running Centos 5.5, which i have Webmin installed.. The other day i saw that there were updates available so i installed them, and now i have Centos 5.6 installed. I just had to reboot my server to move it, and now it wont boot. It is freezing at "Starting xend:"

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CentOS 5 :: After "yum Update" Centos Crashes While Starting / Resolve This?

Mar 17, 2010

I have centos on Microsoft Virtual PC 2007.

yesterday i updated my CentOS 5.4 with command "yum update" and today it won't to start.

Shows processor error and needs to be resetted.

How to solve this issue??

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Ubuntu Security :: Rebooting From Windows - When X Is Starting Up Before The Login Screen Comes Up It Will Flash A Screenshot From Windows

Oct 31, 2010

I have a dual-boot with windows and linux. Sometimes if I reboot from windows into linux, I notice that when X is starting up before the login screen comes up it will flash a screenshot from Windows. Has anyone ever noticed this?

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Ubuntu :: Update Kernel Without Rebooting?

Mar 23, 2010

out there remember what that application is called that where it can update your kernel without rebooting?

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Fedora Installation :: F14 Update - Rebooting Automatically After Showing BIOS

Sep 8, 2011

I updated Fedora 14 with the new kernel- but when I reboot its rebooting automatically after showing the bios. What can I do now.

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CentOS 5 :: Does Anyone Use Revisor On Regular Basis To Respin Centos 5?

Jan 23, 2010

I am investigating the possibility of using revisor to create an up to date custom distribution of centos 5.3 or 5.4.So far I have run up a fedora 12 system and installed revisor (for simplicity) I have adjusted the revisor.conf file and added an extra centos conf file from information found via Google. The adjustments made look out of date as I get lots of errors of paths not being found.

Does any one have a working and up to date centos revisor.conf and a revisor-c5-i386.conf ?Does anyone use revisor on a regular basis to respin centos 5?

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CentOS 5 :: Start Cup-lpd Without Rebooting?

Dec 9, 2009

I just installed a CentOS 5.4 x 64 on a customer's server last Saturday. I use lpr/lpd to print through this server to our network printers.

yum install cups-lpd
Edit /etc/xinetd.d/cups-lpd: disable = no

I did several restarts on /etc/rc.d/init.d/cups. I even did a "kill -SIGHUP 0" and a "kill -SIGHUP pid_xinetd". No joy. I finally gave up and rebooted: joy. Shades of Windows.

What did I miss? How do I start cup-lpd after yum without rebooting.

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General :: How To Update Newly Created Partion In RHEL6 Without Rebooting System?

Apr 17, 2011

How to update newly created partion in RHEL6 without rebooting the system?partprobe /dev/sdaN...does not work here in RHEL6, however it did work in RHEL 5.

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Ubuntu Installation :: Regular Update Now Can't Boot From HD Or CD?

Oct 7, 2010

I updated my Ubuntu 10.04 on Dell 1330 and on the next boot it failed. I get a series of messages, the main point seems to be that it can't find the files it needs to mount.I tried booting from the live cd I used to install 10.04, but it can't boot either due to wrong user id error and maybe trying to boot from wrong kernel?At this point I am willing to just wipe the hard drive and do a fresh install but how to do that if I can't run the install cd?Or is there a way from initramfs to solve this?I tried mount /dev/sda1/mnt but it says cannot read /etc/fstab no such file.libdevmapper

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Debian :: Difference Between Regular Lenny And 'update' ISO?

Jun 6, 2010

I was looking through the Debian FTP site, and noticed

and with a modification time only about 24 hours later,

Whats the difference between these two?

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Ubuntu Installation :: Regular Update On 9.10 Breaks USB Printer?

Feb 10, 2010

I did an update during a time when power was cycling due do a nasty snow storm, but I'm pretty sure the update was completed successfully before I lost power. What did happen though is that my BIOS setup was reset.

Now if my HP Laserjet 1020 is plugged into USB during boot all other USB devices freeze for a while. So I played with my BIOS setting for USB:

- Enabled V1.1 and V2.0
- Disabled System USB Shadowing

So now my bootup doesn't hang. But now when I actually go into Karmic I still can't print.

dmesg shows the following:

[ 205.940008] usb 1-10: new high speed USB device using ehci_hcd and address 9
[ 219.510026] hub 1-0:1.0: unable to enumerate USB device on port 10
[ 223.430008] usb 1-10: new high speed USB device using ehci_hcd and address 10
[ 223.600766] usb 1-10: configuration #1 chosen from 1 choice


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General :: CentOS 5.5 Is Rebooting Frequently Without Any Logs On The Server?

Feb 4, 2011

My server is rebooting frequently(4 to 5times a day) without any logs, can any one help me out to fined the cause for the unexpected reboots of the server. reboot system boot 2.6.18-194.3.1.e Fri Feb 4 15:16 (00:-24)

[root@elastix log]# cat /etc/redhat-release
CentOS release 5.5 (Final)
[root@elastix log]# uname -a
Linux elastix 2.6.18-194.3.1.el5 #1 SMP Thu May 13 13:09:10 EDT 2010 i686 i686 i386 GNU/Linux


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CentOS 5 :: Create Device Special Files Without Rebooting?

Mar 21, 2011

I made a duplicate of a Centos 5.5 system disk with dump (dd if=/dev/sda of=/dev/sdb). No device files for sdb were created, but I guess that's not too surprising. I rebooted, and the device files were created. But how would I create them if I wanted to avoid the reboot?
I looked around for info on mknod and MAKEDEV but didn't find a lot.

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Fedora :: Knetwork Manager With The Update - Stable And Robust Enough For Regular Use?

Nov 18, 2009

I'm running Fedora 11, and just did an update of the system. It looks like there was an update to the package that takes care of knetwork manager. In the past, I have played around with it, but it hasn't met my needs, so I went back to nm-applet, which works fine.

I'm curious about the update, and would like to see if it works. However, knetwork manager won't start as there is another network manager already running (there is a message about this everytime I log in). I can easily kill nm-applet, but logging out and back in causes it to reload, and I still get the message from knetwork manager. So here are my questions:

1) With the update, is knetwork manager stable and robust enough for regular use (the docs for F11 said it wasn't upon F11 release, so included gnome's network manager as the default network manager)?
2) How do I get knetwork manager to work (I presume this means I turn off Gnome's network management and switch to knetwork management)?

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CentOS 5 Networking :: IP Forwarding Disables When Rebooting Network Service / Stop It To Do So?

Nov 30, 2009

I have recently installed Centos 5.4 on a server with 3 network cards. I am trying to enable IP forwarding which has been successful by executing the following command:

echo 1 > /proc/sys/net/ipv4/ip_forward

I tried to make this permanent by adding net.ipv4.conf.default.forwarding=1 to the /etc/sysctl.conf file.

When I restart the network service I get the following code...

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Ubuntu :: Wireless Stopped Connecting - Applying Regular Updates Via Update Manager

May 9, 2011

My self-built PC had a BT wireless adaptor in it which worked, albeit after a bit of a faff, with Ubuntu 10.10 in connecting to my BT HomeHub2.

When I came to use it last week it would not connect. I'd not changed any hardware but I had been applying regular updates via Update Manager.

Bearing in mind the "faff" factor, I decided to try a different (Edimax) wireless card but got the same result. Upgrading to 11.04 has made no difference either.

It does *try* to connect but fails, so I think the card is installed correctly. I've also tried a full reset on the HomeHub and the setup works fine with W7.

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CentOS 5 :: Converting PAE Into Regular Kernel?

May 5, 2010

Anyone can tell me how to convert PAE kernel to regular kernel on CentOS 5?

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CentOS 5 :: How To Get Back Regular GUI Interface For Desktop

Jun 28, 2011

I am some LinuxUNIX history but still consider my self a newbie.I know Microsoft OS well and am more comfortable with that but willing to learn Linux as well.I have a CentOS 5.5 Server I am using to Host over 18 other sites with a PERL / Web based application.The application and hosting are still working but since the CentOS updates I ran this morning my Session (I think that is the correct word) will only load a black desktop with the top menu bar only having the terminal icon and the bottom having a desktop icon; whereas prior to this update the default CentOS blue backdrop with white flower pattern and Applications, Places, System with the terminal icon and other icons displayed and the clock was off to the right.I think this is the Gnome GUI?

Also On Friday 6-24-11 I added a device line to the /etc/fstab so that my CD/DVD device would load up at boat time. I would not think this to be causing the problem.Please advise me on how to get back my regular GUI interface for this Desktop.

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General :: Log On As Another Regular But No Root User With That Password And Boot Up Into Centos

Jul 22, 2011

I forgot the root passwd for linux (via the "single" mode) and, according to all confirms, did so successfully! I then try to log on to Centos as root, and I can't....it says "incorrect passwd"! So then I log on as another, regular, but not root, user, with that passwd, and boot up into Centos. if I try to "su" to root, with the new root passwd, again it says its incorrect. there is no "system admin" passwd set. I checked!. I need root access within Centos!

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CentOS 5 :: Regular Procedure After Power Failiure And Fsck Forced?

Jul 17, 2011

I had a server with CentOS 5.5 and Asterisk fail today most likely due to the power failure. I guess the stupid electrician turned the power ON and OFF multiple times while changing the burned out fuse without unplugging the PBX. It was set in CMOS to power back on when there is power outage so my two HDDs which were set in RAID-1 now shot.

Trying to start the system and it goes through some check and fixes and then tells me to do Ctrl+D or enter password and run fsck. I have tried both methods and I don't think they yeild anything.

Ctrl+D reboots and same store again with the system fixing and asking me to Ctrl+D again. Putting the password and doing "fsck -y" gives many errors and it fixes it and then it just keeps looping. I am afraid this is making it worst than better. So, after few loops I did few more restarts and just give up. Took out the HDDs and installed new ones and install CentOS+Asterisk so business runs as usual on Monday.

However, I am kind f*ked if I don't get the files out of these HDDs. This is my first time using fsck and also encountering this type of a problem. What is the normal procedure when fixing inodes misplaced in a case like this? and what should I do to at least be able to grab my files?

I have already connected one of the drives to Windows and used Disk Internals (which maps Linux drives) but I see only folders with no contents except for /tmp/ which has contents. While the HDDs were in the system I could actually browse files and they were fine. I am really keen to get the drives fixed but I am also afraid that bad usage of fsck might replace lots of files and burn it all.

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CentOS 5 :: Starting RSHD Services On Centos 5,3 Box

Dec 18, 2009

I need to copy files over from a Solaris 2.6 box to my machine running Centos 5.3. I have to use RCP since the Solaris box is so old that is the only inter-machine copy command available.How do I enable rshd services on my centos box? Detailed explanation would be apperciated since I am from the ssh generation.

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Ubuntu Installation :: 10.10 Not Starting After Update?

Oct 24, 2010

Installed the RC of 10.10

Updated when I came back, now selecting Ubuntu from the boot screen just restarts my PC, taking it back to the boot screen.

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Software :: Firefox Not Starting After Update

May 15, 2010

I updated my Suse 11.1 distribution and suddenly Firefox stopped working. I went to a terminal and typed in "firefox" and nothing happened. No error message, no nothing. It just stood there.

If I did the sae as root or as another user, then Firefox would load as usual.

The issue for me was that I was using NoMachine (NX) to access my machine. It adds some lines to the LD_PRELOAD session variable. I removed the variable content et voila! I've got my Firefox working again

To check if you're in the same potential situation, do a "set | grep LD" and check the result. If you've got "LD_PRELOAD=" with nothing afterwards, you're not in the same case as me. Good luck finding our fix. If you see "LD_PRELOAD=some stuff here" then you may be in the same case as me. The type in "LD_PRELOAD=" and hit enter to clean he variable. Then in the same terminal type in "firefox" and it should just work.

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General :: Get The Matching Kernel Headers Automatic On A Regular Kernel Update Via The Ubuntu Packed Manager?

Nov 26, 2010

Is there a way to get the matching Linux kernel headers automatic on a regular kernel update via the Ubuntu packed manager? Every time I get a new kernel I must do an aptitude install linux-headers-`uname -r`

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OpenSUSE Install :: Gnome Not Starting After Update (gdm)?

Feb 7, 2010

I ran an update after installing the OpenSuse 11.2 Gnome Live CD and could not start Gnome.Signing in would only get me a blank screen with wallpaper.Changing the display manager in /etc/sysconfig/displaymanager to kdm (from the default gdm) resolves this issue for me:DISPLAYMANAGER="kdm"

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Fedora :: Raid Not Auto-starting After Kernel Update

Jan 25, 2010

I updated my fc12 x86_64 server today, and one of the updated included kernel from the previous one of kernel- I boot with that kernel, it stops when my logical volumes that are built on a raid 5 array (linux software raid built using mdadm) are not there.I can start them afterward with mdadm --auto-detect which seemingly loads the appropriate modules and starts the array, but I have never had to do this before.

Reading the mdadm man page, it mentions that this is generally done by the initrd. So, I am guessing the initrd that came with the new kernel is missing something.

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Slackware :: Exaile Not Starting After Update - Segmentation Fault

Aug 27, 2010

I just installed today's updates (apart from XFCE, which I had installed from Robby's website) and get the following error when I try to start exaile:

INFO : Loading Exaile
INFO : Loading settings...
INFO : Setting up deferred idle manager function...
INFO : Loading plugins...
INFO : Loading collection...
INFO : Loading devices...
INFO : HAL Providers: [<cd.CDHandler object at 0x15c2e50>]
INFO : Loading interface...
/usr/lib64/exaile/xlgui/__init__.py:82: GtkWarning: Unable to locate theme engine in module_path: "thinice", 'ExaileWindow', 'exaile')
Segmentation fault

I'm looking at the changelogs and can't figure out which one is the culprit.

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CentOS 5 :: GDM Not Starting Automatically On CentOS 5.4?

Oct 31, 2009

this is probably something trivial but how can I auto start gdm on CentOS 5.4??I had to perform a text install due to Anaconda having some issues as I'm running Cent on Sun's VirtualBox.I have tried to add chkconfig --add gdm which didn't work, also there is no init.d script either for gdm so not sure if it's in a directory somewhere or if I have to create it manually??IF I run simply gdm from teh cli then everything is ok and starts fine....

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Debian Hardware :: Video Driver FGLRX Update And Not Starting X

Feb 16, 2015

Just used Synaptic to update my video driver for the XFX RADEON R250x. It was working before when I had installed the drivers from the AMD site. But I was told I needed to use the kernel compatible, so I did this update. Now it boots up and hangs with blank screen where it would usually go to login. I've got a boot disc where I can boot into and we can look at the logs ....

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