Archive for the ‘server admin’ Category

How to Mount ntfs on Centos

Tuesday, October 6th, 2009

So , have you been in the situation where you need to mount a drive  which have windows install on it and worse having ntfs partition… and above that when you issue below commands:

#mount -t ntfs /dev/sda1 /mnt/win

and getting error cant find type “ntfs” … well read below how you can do it in just 2 mins:

Step -1

# yum install dkms-ntfs.noarch

Once install  just issue the below commands:-

#mount /dev/sda1  /mnt/win

and thats it really ….

How to Compile a Kernel ?

Wednesday, January 7th, 2009

Step 1
Download the kernel from below link
ftp://ftp.kernel.org/pub/linux/kernel/v2.6
(i am assuming that everyone like to compile a latest kernel)
Step 2
Extracting the kernel if its a archive with tar.gz extension then do below in your /usr/src
# tar -zxvf
linux-2.6.x.x.tar.gz
If its a .tar.bz2 then do below in your /usr/src
# tar
-jxvf linux-2.6.x.x.tar.bz2
Step 3
You must have a folder now in your /usr/src dir with the name of linux-2.6.x.x just symlink it with
dir linux
# ln -sf linux-2.6.x.x linux
Now change the dir to linux
#cd linux
once you are inside the dir issue any of the below commands to configure your new kernel
# make menuconfig (This will show you a command line screen to configure the kernel)
or
# make xconfig (This will open up a qt based gui window to configure the kernel)
Note : — if you want to configure the new kernel same as of your old one then you just need to issue the below commands
# make oldconfig && make modules_install && make install
This will install your new kernel with the old config and also install the boot image and other files in your
/boot
Step 4
I am assuming now that you have configured your new kernel and ready to compile it , just follow the below steps
#make && make modules_install && make install
Now just sit and have a cup of tea/coffee as kernel compilation will take some time Once the compilation is
finished you need to reboot your machine and start using your new kernel
NOTE :
- i am assuming you are using grub here for that you need to select the option on boot for the new kernel
lilo users - here comes my lilo.conf
boot=”/dev/hda”
lba32
prompt
timeout=”50″
defa
ult=2.6.x.x
vga=”792″
image=”/boot/kernel-2.6.x”
label=”linux”
root=”/dev/hda4″
read-only
#
initrd=”/boot/kernel-2.6.17″
#root=/dev/ram0
#append=”init=/linuxrc
real_root=/dev/hda4″
image=”/boot/kernel-2.6.20.3″
label=”2.6.20.3″
root=”/dev/hda4″
read-only

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