Hi all.. may i know the exact usage of getpriority() call used in linux.. even after searching thru net, i couldnt understand it exactly.. can someone explain it with an example.. thnx in advance :)
Solving a Gotcha with VirtualBox Guest Additions I was just building a new virtual machine based off an existing image that didn’t have the Virtual Box Guest Additions enabled. The guest additions allow tight integration between the guest OS and the host environment, providing seemless mouse transfer and the ability to take advantage of…
I did upgrade virtualbox from 4.1 to 4.2
wheneverver I want to load my win xp vdi, it gives me the following error:
"Kernel driver not installed (rc=-1908)
The VirtualBox Linux kernel driver (vboxdrv) is either not loaded or there is a permission problem with /dev/vboxdrv. Please reinstall the kernel module by executing
'/etc/init.d/vboxdrv…
root@me-desktop:~# sudo apt-get install aircrack-ng
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following NEW packages will be installed:
aircrack-ng
0 upgraded, 1 newly installed, 0 to remove and 446 not upgraded.
1 not fully installed or removed.
Need to get 1,579kB of archives.
After this…
I recently installed Ubuntu 12.04 on my desktop. I have three monitors, and after installing, ubuntu only detected one at 1080p. I downloaded the driver from the nvidia website, but when I stop lightdm and try to run the driver, it gives me an error message:
ERROR: Unable to find the kernel source tree for the currently running kernel. …
I'm trying to boot from a usb stick.
I formatted it to fat32, and later to ext2, and installed dsl on it using unetbootin, and later the usb install guide on dsl wiki (http://www.damnsmalllinux.org/wiki/index.php/Install_to_USB_From_within_Linux).
The bios doesn't have a setting for booting from usb. Grub doesn't "see" the usb drive…
Every night when I leave work, I lock the screen via ubuntu's "power" button in the top right hand panel.
When I come to work in the morning, I'm greeted with the log-in screen. This doesn't happen every night, but most.
I'm running ubuntu 10.04 on a Dell inspiron. I've included some HW specs, and also dmesg output. Please let me…
I was reading the book Practical Reverse Engineering: x86, x64, ARM, Windows Kernel, Reversing Tools, and Obfuscation by Bruce Dang et. al, as I am interested in learning about Reverse Engineering. However I found that most of what I was reading made very little sense to me and I felt confused.
So my question is, what material…
I'm having frequent disconnects with my new install of Ubuntu 12.10. I tried updating the kernel driver to the latest intel release to no avail. My expertise is spent. It happens anywhere between 1 min and 10 min. Any ideas?
syslog:
Dec 1 13:51:39 andromeda kernel: [ 972.188809] audit_printk_skb: 6 callbacks suppressed…
This USB thing is driving me crazy. 2 problems in time span of 3 hours.
Ok I was already trying to cope up with "wrong fs type, bad option, bad superblock" error while mounting FAT Drives when to my amazement I discovered that none of the USB Storage devices showed up in the system
Useful outputs:
- tail /var/log/syslog:
…
Is there a way to change an i386 RHEL4 machine to run an amd64 kernel, but ensure that it still builds software into same i386 binaries?
On Debian this seems quite straightforward: just install an amd64 kernel (worst case, build one like this guy:
http://www.debian-administration.org/users/jonesy/weblog/1) and prefix…
I know there is a parameter named ip which lets you configure IPv4 addresses on the Linux kernel through the boot loader. That looks like the following:
ip=192.0.2.1::192.0.2.62:255.255.255.192::eth0:none
I'm looking for an equal parameter for IPv6 configuration. I couldn't find anything about this in the kernel…
I've trolled the internets to make hdmi work on my system
Ubuntu 12.04
software center kernel 3.5
uname: Linux ubuntu 3.5.0-18-generic #29~precise1-Ubuntu SMP...x86_64 x86_64 x86_64 GNU/Linux
open source radeon drivers
vgaswitcheroo (hybrid intel/radeon gpu): I boot with intel, not radeon, running.
(and recall that…
I'm building a web server to host multiple websites. I got everything working except the mail server. I'm using linode to host my vps and I've been following their tutorials. FYI, I'm using Ubuntu 11.10.
Here is the link I've been following, http://library.linode.com/email/postfix/dovecot-mysql-ubuntu-10.04-lucid.…
We just introduced a new yum repository/channel on http://public-yum.oracle.com called the playground channel. What we started doing is the following:
When a new stable mainline kernel is released by Linus or GregKH, we internally build RPMs to test it and do some QA work around it to keep track of what's going on…
I wanted to share knowledge of tuning FreeBSD via sysctls, so i'm posting them with comments. Based on Igor Sysoev (author of nginx) presentation about FreeBSD tuning up to 100,000-200,000 active connections.
Sysctls are for 7.x FreeBSD. Since 7.2 amd64 some of them are tuned well by default.
Prior 7.0 some of…
Mac boots fine normally, except when in safe mode.
Holding down shift when booting gets me to the progress bar on the grey screen. Progress bar gets about half way before mac reboots.
I modified nvram boot-args to get a better look:
sudo nvram boot-args="-x -v"
It definitely gets through fsck, skips…
When say 3 programs (executables) are loaded into memory the layout might look something like this:
I've following questions:
Is the concept of Virtual Memory limited to user processes? Because, I am wondering where does the Operating System Kernel, Drivers live? How is its memory layout? I know its…
The problem is, I could log in under the terminal, i could ifup eth0, i could do anything I want in the terminal, but if I use ctrl+alt+f7 goto the gnome login screen, after I input the correct password, the system just send me back to same login screen again.
I have created a new user, but it didn't…
Hello all I'm having some difficulty installing Oracle 11gR2 on RHEL 6.2
I have compiled a giant list of every single step I have taken so far I installed RHEL 6.2 on VMWARE it did it's easy install automatically
I Selected 4gb of memory
Selected max size of 80Gb
Selected 2 processors
Sorry for the…
Kernel Linux : le bug "Lance Armstrong"
dans le système de fichiers Ext4 entraine la perte de données
Theodore Ts'o, un développeur du noyau Linux vient de publier des détails sur un bug grave dans le noyau Linux.
Le bug a été découvert par un utilisateur lors d'une mise à jour du noyau de la…
I am facing an issue with brightness control in my laptop which has Intel HD graphics. So when I searched for a fix I found that a common suggestion is to edit the GRUB file line,
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"
to
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash acpi_osi=Linux…
Amazon Web Services : mise à jour de l'environnement Linux
avec les dernières versions de MySQL, Python, Ruby et le Kernel Linux 3.2
Amazon Web Services (AWS) vient de procéder à une mise à jour majeure d'Amazon Linux AMI.
L'image du système d'exploitation Linux qui s'exécute sur la…
Running a GYGABYTE FM1 motherboard which is using a AMD 3870k APU with a new WS Caviar 1TB HDD. Following the advice in the Motherboard manual and https://help.ubuntu.com/community/UEFI have now got to grub screen for UEFI install.
The dvd.iso being used is Ubuntu 12.10 desktop…
This is the last issue with this app. Periodic force close situations. I think something
should be on another thread but I'm not sure what. Anyway, I can always count on a freeze
on first install. If I wait, eventually (maybe 10 seconds) the app comes around, maybe more.
here…