Vmware-Tools and time synchronization: Difference between revisions

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Installation:
Installation:
# Install Virtual Machine (e.g. SuSE 9.3 used here) with <code>pcnet32</code> network module (default).
# Install Virtual Machine (e.g. SuSE 9.3 used here) with <code>pcnet32</code> network module (default) including the kernel sources.
# Run Yast Online Update <nowiki>you</nowiki>
# Run Yast Online Update <code>you</code>. This updates the packets + kernel + kernel sources.
# Reboot.
# Install the Vmware-Tools. We use the <pre>dc:/pub/software/RPM/VMwareTools-5.5.1-19175.i386.rpm</pre> which compiles better with 2.6 kernals then the variant distributed with vmware-gsx-server.<pre>rpm -i VMwareTools-5.5.1-19175.i386.rpm</pre>.
# Now we have to configure the kernel sources: <pre><nowiki>
cd /usr/src/linux
make cloneconfig
make prepare</nowiki></pre>
# Now we can successfully run <pre>/usr/bin/vmware-config-tools.pl</pre> and follow the instructions.
# Run <code> vmware-toolbox </code> and check button [[Image:screen1.gif|Options->Time synchronization ...]].
# Unfortunatly the guest OS gives timerevents with maximum 1000Hz, what is to slow fror the Linux-SMP-2.6 default kernel. [http://www.vmware.com/support/kb/enduser/std_adp.php?p_faqid=1420 See] Therfore we have to add the kernel boot options: '''<code>clock=pit noapic nolapic nosmp</code>'''<pre><nowiki>
vi /boot/grub/menu.lst
# Modified by YaST2. Last modification on Tue Feb 21 12:52:40 UTC 2006

color white/blue black/light-gray
default 0
timeout 8
gfxmenu (hd0,0)/boot/message

###Don't change this comment - YaST2 identifier: Original name: linux###
title SUSE LINUX 9.3
kernel (hd0,0)/boot/vmlinuz ...showopts clock=pit noapic nolapic nosmp
initrd (hd0,0)/boot/initrd
###Don't change this comment - YaST2 identifier: Original name: floppy###
title Floppy
root (fd0)
chainloader +1

###Don't change this comment - YaST2 identifier: Original name: failsafe###
title Failsafe -- SUSE LINUX 9.3
kernel (hd0,0)/boot/vmlinuz ............... 3
initrd (hd0,0)/boot/initrd
</nowiki></pre>
# Shutdown the VM and configure the network to use <code>vmxnet</code> module instead of <code>pcnet32</code> [[Image:screen2.png]].
# Check if in the Vmwares *.vmx file the entry <pre>tools.syncTime = "TRUE"</pre> is correctly set.
# Power on the VM and choose the right driver for eth0 using yast (it should be named eth? because even <code>/etc/init.d/vmware-tools</code> has to find it) Example:<pre><nowiki>
brn-suse093-1:~ # cat /etc/sysconfig/hardware/hwcfg-bus-pci-0000:00:11.0
MODULE='vmxnet'
MODULE_OPTIONS=''
STARTMODE='auto'

brn-suse093-1:~ # cat /etc/sysconfig/network/ifcfg-eth0
BOOTPROTO='dhcp'
MTU=''
NAME='VMWare VMware High-Speed Virtual NIC [vmxnet]'
REMOTE_IPADDR=''
STARTMODE='auto'
UNIQUE='7EWs.eUHVfjJn0H8'
USERCONTROL='no'
_nm_name='bus-pci-0000:00:11.0'
</nowiki></pre>
# Shut down the machine, power off the VM from the GSX-Console and start the VM new.

Hopefully after a reboot all services start correctly and the time is more accurate. If not please add details to this description!

'''If a kernel-update is installed the steps 3, 5 and 6 have to be repeated!'''

Latest revision as of 09:23, 3 March 2006

There are several reasons for installing Vmware Tools in the guest-OS:

  • Better network performance by using vmxnet module
  • May be better Virtual-disk speed because /etc/init.d/vmware-tools sets up hdparms.
  • Time synchronization hetween host & guest OS.

Installation:

  1. Install Virtual Machine (e.g. SuSE 9.3 used here) with pcnet32 network module (default) including the kernel sources.
  2. Run Yast Online Update you. This updates the packets + kernel + kernel sources.
  3. Reboot.
  4. Install the Vmware-Tools. We use the 
    dc:/pub/software/RPM/VMwareTools-5.5.1-19175.i386.rpm
    which compiles better with 2.6 kernals then the variant distributed with vmware-gsx-server.
    rpm -i VMwareTools-5.5.1-19175.i386.rpm
    .
  5. Now we have to configure the kernel sources: 

cd /usr/src/linux
make cloneconfig
make prepare

  1. Now we can successfully run 
    /usr/bin/vmware-config-tools.pl
     and follow the instructions.
    2. 

  2. Run  vmware-toolbox  and check button Options->Time synchronization ....
    3. 

  3. Unfortunatly the guest OS gives timerevents with maximum 1000Hz, what is to slow fror the Linux-SMP-2.6 default kernel. See Therfore we have to add the kernel boot options: clock=pit noapic nolapic nosmp

vi /boot/grub/menu.lst
# Modified by YaST2. Last modification on Tue Feb 21 12:52:40 UTC 2006

color white/blue black/light-gray
default 0
timeout 8
gfxmenu (hd0,0)/boot/message

###Don't change this comment - YaST2 identifier: Original name: linux###
title SUSE LINUX 9.3
    kernel (hd0,0)/boot/vmlinuz ...showopts clock=pit noapic nolapic nosmp
    initrd (hd0,0)/boot/initrd
###Don't change this comment - YaST2 identifier: Original name: floppy###
title Floppy
    root (fd0)
    chainloader +1

###Don't change this comment - YaST2 identifier: Original name: failsafe###
title Failsafe -- SUSE LINUX 9.3
    kernel (hd0,0)/boot/vmlinuz ...............  3
    initrd (hd0,0)/boot/initrd


  1. Shutdown the VM and configure the network to use vmxnet module instead of pcnet32 Screen2.png.
    2. 

  2. Check if in the Vmwares *.vmx file the entry 
    tools.syncTime = "TRUE"
     is correctly set.
    3. 

  3. Power on the VM and choose the right driver for eth0 using yast (it should be named eth? because even /etc/init.d/vmware-tools has to find it) Example:

brn-suse093-1:~ # cat /etc/sysconfig/hardware/hwcfg-bus-pci-0000:00:11.0
MODULE='vmxnet'
MODULE_OPTIONS=''
STARTMODE='auto'

brn-suse093-1:~ # cat /etc/sysconfig/network/ifcfg-eth0
BOOTPROTO='dhcp'
MTU=''
NAME='VMWare VMware High-Speed Virtual NIC [vmxnet]'
REMOTE_IPADDR=''
STARTMODE='auto'
UNIQUE='7EWs.eUHVfjJn0H8'
USERCONTROL='no'
_nm_name='bus-pci-0000:00:11.0'


  1. Shut down the machine, power off the VM from the GSX-Console and start the VM new.


Hopefully after a reboot all services start correctly and the time is more accurate. If not please add details to this description!

If a kernel-update is installed the steps 3, 5 and 6 have to be repeated!



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