I am trying to install F12 on a Dell Latitude E5400 laptop. It got through the whole install process, but when it rebooted i just get a screen that says
"unable to handle kernel null pointer dereference"
all of the following are made through live usb creator. when i tried with F11 i686 live kde, I got the following error: Bug: unable to handle kernel when i tried with F11 x86_64 live kde then at the time of installation my screen got blurred.
Does anyone have any idea what this is? I'm running F14 kernel 11-83, everything else is rock solid but I get this crash randomly, sometimes it runs for days no problem other times it crashes within a few hours.Someone recommended I run memtest86, I did for 24 hours and it showed no problems.
[Note: I'm typing this entire thing out. It probably isn't 100% verbatim. And I am using an older version of the kernel because 2.6.30.9.96 was not behaving either.]
Code: BUG: unable to handle kernel paging request at efd86f5c *pde = 00000000
I have a server running Red Hat Enterprise Linux ES (2.6.9.55.ELsmp). When it starts up I get the following error: Uncompressing Linux... Ok, booting the kernel. Red Hat nash version 4.2.1.10 starting WARNING: can't access (null) exec of init ((null)) failed!!!: 14 unmount /initrd/dev failed: 2 Kernel panic - not syncing: Attempted to kill init!
After that I got no response from the OS. I have the installation CD, so I tried to start the rescue mode, while going through the steps I received an error stating that mounting to /mnt/sysimage failed and that if I want to I can access a shell. I really don't know what to do from here
If I assign the value to the variable line = $(sed -n 8p file.txt)
and now print it out with echo
echo $line
the line would be printed.
But what if the file has only 4 lines. What value would be assigned to the variable line?
I want to know that because I want to only print it if the value is "something", that is not null.
In Java for example I would do it like this... String line = ""; line = reader.readLine(); // or anything else.. if(line!=null){ System.out.println(line); }
How would I check if the value is not "null"(I don't know if bash knows null)
I refrained from posting this in the Kernel Vulns thread earlier, due to its zero-day status. But now that the issue has been Slashdotted, there's no use in keeping us from publicly discussing this vulnerability. The link to the article (from which I quote below) is here. Brad Spengler's original announcement on the Dailydave mailing list is here.Quote:A researcher has published exploit code for a new vulnerability he discovered in the Linux kernel. The vulnerability is an especially interesting one in that the researcher who discovered it, Brad Spengler, has demonstrated that he can use the weakness to defeat many of the add-on security protections offered by SELinux and AppArmor.
I am unable to boot my Fedora 14 after last nights kernel update. When I start the boot up and hit F2 the system fails after outputting the line : Starting vservers of type 'default'. At some point the console displays an error message :
serial8250 : Too much work for irq17
How do I restore my previous version? I know some people have suggested in the past - just modify the grub.conf but how? When I boot off the cd I only get access to the liveuser disk. I need to have access to my own /boot/grub/grub.conf file.
I've been trying to install Opensuse 11.3 from the Kde live cd, but the installation hangs when I'm almost done. Right at the beginning the installation is interrupted right with text that among other things says:
Bug: unable to handle kernel paging request at ffffc90010b8000. After a while though, the installation picks up and continues by itself. I'm then able to complete the necessary steps and I reboot the system so that it can complete the installation.
After reboot there is a new text message that says that the bios does not support EEC memory or something to that effect and then continues with the installation. When it has completed 82% of the autoconfiguration the installation just stops and stays that way.
I've had no problem installing previous releases, from 10.2 up to 11.2, on the same machine.
I've checked md5 sum and also checked the media before proceeding with the installation.
Upon reboot after the first installation step, I also tried the failsafe mode but got the same result.
Here's the text from the serial console before I rebooted:
BUG: unable to handle kernel paging request at ffff8140320234b8 IP: [<ffffffff802b0a13>] dentry_iput+0x26/0x9d PGD 8063 PUD 0
[code]....
My root server is using CentOS release 5.2 (Final), kernel 2.6.26.5-rootserver-20080917a, SMP, 64-bit This Oops happened yesterday and before that it happened on March 14th of this year, and before that on January 31st of this year, so a repeating pattern. On the January 31st Oops, I just rebooted. On the March 14th Oops, I reformatted the two swap partitions as follows: mkswap -c /dev/sda2; mkswap -c /dev/sdb2 On this last Oops, I turned off the swap for 24-hours, then decided to turn it on again after doing the above mkswap again. During the previous uptime, I had dumpcap packet capture running, but this last reboot, I'm not going to run it.
I'm wondering if there is any application being able to handle compressed SWF files. If I try it with mencoder (mplayer), it tells me:[swf @ 0x91a0a30]Compressed SWF format not supported No way in Fedora Core 11?
I'm trying to set up a virtual web server using virtual pc and a net-tuts how to. So I went ahead and downloaded Ubuntu 9.10 Server Edition, but it only comes in 64-bit, and vpc doesn't handle 64-bit. How I can get around this? I have a machine that I could set up as a server, but that is also only 32-bit.
I downloaded 64-bit version of Fedora 11 and burned the iso on my dvd. When I rebooted the machine it booted up from the dvd but it showed an error message that kernel "image not found". And it stops there itself. Can someone show me some way except downloading the iso again?
I upgraded my F13 kernel from 2.6.33 to 2.6.34. But, the newer kernel isn't booting. It starts the booting process and then goes idle. how shall I troubleshoot?
I've managed to get some sound through the system with kernel 2.6.40.1. I use multiple sound cards, I have problems with keeping the same order. I added in etc/modprobe.conf The list of sound devices, putting my D66 card as device 3, Rebooted and cat /proc/asound/cards showed all fore devices in the correct order. I got audio through one of the apps , and started to try and get another ,wsjt, to function.
I have been running F14 as a 32-bit system (original m/b was 32-bit). Now the system is on a 64-bit dual-core processor board and I'd like to change from the 32-bit kernel to 64-bit. I downloaded a 64-bit kernel (kernel-2.6.35.6-45.fc14.86_64.rpm) and attempted to install it. It won't install and Package Installer returns a message of the sort that says this file "has incompatible architecture.
Valid architectures are ['athlon', 'i686', 'i586', 'i486'....]". My processor is an Athlon 64 x2. Is it possible to do what I want to do (I only want the kernel at the moment)? Is there some Fedora file I need to modify to allow the system to install the 64-bit kernel for this m/b? Do I need another file (or files) installed before I install the kernel?
I have a new work laptop (Dell M6400) that I currently have F10 i386 on. I would like to take advantage to the 64bit processor, but don't know if I need to completely re-install my F10, or if I just have to add the proper 64 bit kernel and applications.
Ive loaded 64studio (hda6) grub in MBR, and fed10 grub on its partition (hda8), but from Studio it seems i cant Mount fed10 files to look at the Kernel path from MBR. (studio did not auto pick it up, like it did for Mandriva on hda7)
Does anyone know what it is ? something like kernel /boot/vmlinuz.....and Initrd(hd0,7)/boot.initrd.img .....then i can Edit menu.Lst in MBR grub.
I am running a vmware on a 64 bit fedora 9. I have already installed kernel header, but the vmware could not find the kernel header, and ask to input the kernel header path. I added /usr/include to the vmware, it complained not a right kernel header.
The -162 kernel upgrade just released failed to boot in my x86-64 system. Additionally, both previous kernels failed in (probably) the same way. The progress icon proceeded all the way to its 'f' image, and then hung. I touched escape key, and found several disturbing messages among a dozen or so lines --
mdadm: No arrays found in config file or automatically. A dynamic linking error occurred: /lib64/multipath/libcheckdirectio.so: no such file or directory awk: cmd. line:1: fatal: cannot open file `/etc/inittab` for reading (Invalid Argument). Init: rcS post-stop process (807) terminated with status 2s. I got into rescue mode with my install disk, then looked for libcheckdirectio.so in /mnt/sysimage/lib64 but it was not there. Also, locate -d /mnt/sysimage/mlocate/mlocate.db/libcheckdirectio.so found nothing.
Ran chroot and executed the fakd diagnostic (which I had not seen before) and rebooted. Same problem - although now the screen is telling me SELinux is requiring a targeted policy relabel. My dual-boot-to-vista system has been erratic (requiring fsck several times, and confounding the Vista partition to require file checks), primarily since a large install of Eclipse and multiple plug-ins AFAICR.
I have an issue with kernel-2.6.31.9-174.fc12.x86_64. I ran the updates on Christmas Eve and it updated from kernel-2.6.31.6-166.fc12.x86_64 to kernel-2.6.31.9-174.fc12.x86_64. When I rebooted, I no longer received the Fedora Bubble boot screen. It comes up with the Fedora boot bar (across the bottom). Also, I receive failures during boot with the following:
I've downloaded 2.6.36-rc8 vanilla kernel, then I copied .config file from my current working kernel 2.6.32.21-168.fc12.x86_64, then I've configured, compiled and installed kernel like this:
Code: make gconfig make -j4 all (or make all) make modules_all make install The last command edits my grub.conf file and writes this: [Code]....
I checked my .config and ACPI, and File Systems are built into kernel and not loaded as modules... And, I have LVM but my /boot partition isn't in it, so I don't HAVE to use initrd, right? How can I boot from a vanilla kernel without initrd ?
