title: xen installation on cent os 6.3
body: <p>I followed tutorial <a href="http://www.howtoforge.com/virtualization-with-xen-on-centos-6.2-x86_64-paravirtualization-and-hardware-virtualization" rel="nofollow">http://www.howtoforge.com/virtualization-with-xen-on-centos-6.2-x86_64-paravirtualization-and-hardware-virtualization</a></p>
  
  <p>To install xen on Centos 6.3 everything is going perfect but, after editing /boot/grub/menu.lst </p>
  
  <pre><code>Quote:
  # grub.conf generated by anaconda
  #
  # Note that you do not have to rerun grub after making changes to this file
  # NOTICE: You have a /boot partition. This means that
  # all kernel and initrd paths are relative to /boot/, eg.
  # root (hd0,0)
  # kernel /vmlinuz-version ro root=/dev/mapper/vg_xen-LogVol01
  # initrd /initrd-[generic-]version.img
  #boot=/dev/sdb
  default=0
  timeout=5
  splashimage=(hd0,0)/grub/splash.xpm.gz
  hiddenmenu
  title CentOS (2.6.32.57-2.el6xen.x86_64)
  root (hd0,0)
  kernel /xen.gz dom0_mem=1024M cpufreq=xen dom0_max_vcpus=1 dom0_vcpus_pin
  kernel /vmlinuz-2.6.32.57-2.el6xen.x86_64 ro root=/dev/mapper/vg_xen-LogVol01 rd_NO_LUKS LANG=en_US.UTF-8 rd_LVM_LV=vg_xen/LogVol01 rd_LVM_LV=vg_xen/lv_swap rd_NO_MD SYSFONT=latarcyrheb-sun16 crashkernel=128M KEYBOARDTYPE=pc KEYTABLE=us rd_NO_DM rhgb quiet
  initrd /initramfs-2.6.32.57-2.el6xen.x86_64.img
  
  title CentOS (2.6.32-279.el6.x86_64)
  root (hd0,0)
  kernel /vmlinuz-2.6.32-279.el6.x86_64 ro root=/dev/mapper/vg_xen-LogVol01 rd_NO_LUKS LANG=en_US.UTF-8 rd_LVM_LV=vg_xen/LogVol01 rd_LVM_LV=vg_xen/lv_swap rd_NO_MD SYSFONT=latarcyrheb-sun16 crashkernel=128M KEYBOARDTYPE=pc KEYTABLE=us rd_NO_DM rhgb quiet
  initrd /initramfs-2.6.32-279.el6.x86_64.img
  </code></pre>
  
  <p>when i reboot it is booted with xen kernel but when i run command</p>
  
  <pre><code>xm info or xm list
  </code></pre>
  
  <p>showing error </p>
  
  <pre><code>" Error: Unable to connect to xend: No such file or diectory. Is xend running "
  when i run command
  
  xend start
  </code></pre>
  
  <p>showing error</p>
  
  <pre><code>" xc: error: Could not obtain handle on privileged command interface (2 = No such file or directory): Internal error
  xend/image.py: Error connecting to hypervisor "
  
  
  ls /proc/xen
  
  
  " ls: cannot access /proc/xen: No such file or directory "
  added entry in /etc/fstab
  
  Quote:
  none /proc/xen xenfs default 0 0
  </code></pre>
  
  <p>after reboot gives error no such file or directory,</p>
  
  <pre><code>lsmod | grep -i xen output: Nothing...
  
  modprob xen-evtchn
  
  FATAL: Error inserting xen_evtchn (/lib/modules/2.6.32.57-2.el6xen.x86_64/kernel/drivers/xen/xen-evtchn.ko): No such device
  
  modprob xen-gntdev
  
  FATAL: Error inserting xen_gntdev (/lib/modules/2.6.32.57-2.el6xen.x86_64/kernel/drivers/xen/xen-gntdev.ko): No such device
  </code></pre>
  
  <p>I have enabled hardware virtulization in bios still problem not solved.</p>
  
  <p>I tried another tutorial <a href="https://www.crc.id.au/xen-on-rhel6-scientific-linux-6-centos-6-howto/" rel="nofollow">https://www.crc.id.au/xen-on-rhel6-scientific-linux-6-centos-6-howto/</a></p>
  
  <p>it seems like nothing is working for me...</p>
  
  <p>Guys... please share your thoughts about this problem...</p>
  
  <p>Thank you.</p>