# Cheatsheet VMware

**Summary**: A cheatsheet to collect various information regarding vmware products. \\
**Date**: 3 January 2025 \\
{{tag>cheatsheet vmware}}

# VMware voor Linux

VMware tools:
  * Dependencies: gcc/gcc++/(kernel-headers)

On ESX, first mount the cdrom:
  * OES3:/media # mount /dev/cdrom /mnt/
  * mount: block device /dev/cdrom is write-protected, mounting read-only

Turn off the vm , and set the cdrom to automatically connect as host device, as auto detect.
  * mount /dev/cdrom /media/cdrom -o rm

Click "Install VMWare Tools" menu option and issue the following commands:
<code>
cd /tmp
tar zxf /media/VMware\ Tools/vmware-linux-tools.tar.gz
cd /tmp/vmware-tools-distrib
./vmware-install.pl
Run tools: /usr/bin/vmware-toolbox
</code>

Install everything into /usr/local/bin

## Installation SLES9 - double screens that are hard to read

Open
  vi /boot/grub/menu.lst
eand remove "vga=0x332" from the linux kernel load line

# Discover new disk on linux

After you've added a new disk to linux you can discover it by issuing 'rescan-scsi-bus.sh' as root:
<code>
# rescan-scsi-bus.sh
Host adapter 0 (mptspi) found.
Scanning SCSI subsystem for new devices
Scanning host 0 channels 0 for  SCSI target IDs  0 1 2 3 4 5 6 7, all LUNs
Scanning for device 0 0 0 0 ...
OLD: Host: scsi0 Channel: 00 Id: 00 Lun: 00
      Vendor: VMware   Model: Virtual disk     Rev: 1.0
      Type:   Direct-Access                    ANSI SCSI revision: 02
Scanning for device 0 0 1 0 ...
OLD: Host: scsi0 Channel: 00 Id: 01 Lun: 00
      Vendor: VMware   Model: Virtual disk     Rev: 1.0
      Type:   Direct-Access                    ANSI SCSI revision: 02
Scanning for device 0 0 2 0 ...
NEW: Host: scsi0 Channel: 00 Id: 02 Lun: 00
      Vendor: VMware   Model: Virtual disk     Rev: 1.0
      Type:   Direct-Access                    ANSI SCSI revision: 02
0 new device(s) found.
0 device(s) removed.
</code>
It says 0 devices found but the new disk is still discovered and ready for partitioning.

# Time Drifting op Linux guests

## Step 1: Configure NTP

Open ntp.conf and add the following lines:
<code>
vi /etc/ntp.conf
server x.x.x.x prefer
tinker step 0
</code>
Stop, synchroniseer en start ntp:
<code>
/etc/init.d/ntpd stop
ntpdate x.x.x.x (repeat until the difference is less then 1 second)
/etc/init.d/ntpd start
ntpq -p (repeat until the reach is on 377)
</code>

## Step 2: clock=pit

  * vi /boot/grub/menu.lst
  * Add "clock=pit" to the linux kernel load line
\\
or
\\
  * vi /etc/lilo.conf
  * Add "clock=pit" to the "append=" line
  * /sbin/lilo

## Step 3: Misc.TimerHardPeriod (on ESX)

Set to 333 or 250

## Step 4: tools.syncTime

Turn on time synchronisation with the host in the VMware tools or the *.vmx config file.

## Optional extra steps

## Step 5: noapic nolapic nosmp

  * vi /boot/grub/menu.lst
  * add "noapic nolapic nosmp" to the linux kernel load line

## Step 6: NTP polling

  * vi /etc/ntp.conf
  * server x.x.x.x prefer minpoll 4 maxpoll 6
    * (number is seconds * seconds, so 4 = 16 seconds and 6 = 36 seconds)

## Extra Time Commands

Sync the hardware clock with the system clock:
<code>
hwclock --systohc
# Check the hardware clock
hwclock --show
</code>

# VMware General

If the boot screen goes too fast, F2 is the key to enter the BIOS/CMOS.

# VMware Server port forwarding

I needed to be able to authenticate through LDAP on a virtual from the production network. Of course, vmware server does not support reverse NAT, so I took my chances on port forwarding... and it worked:
[{{vmwareserverportforwarding.jpg}}] \\
Don't forget to press restart and apply when you've added port forwards.

# Force Removal of VMware Tools

To uninstall and re-install VMware Tools:

  * Right-click on the virtual machine.
  * Click Guest > Install/Upgrade VMware Tools.
  * Open a Console to the virtual machine and log into the guest operating system.
  * Click Start > Run, type cmd, and click OK to open a command prompt in Windows.
  * Change the drive to your CD-ROM drive (For example, D:\).
  * Type `setup /c` and press Enter to force removal of all registry entries and delete the old version of VMware Tools.
  * Open My Computer, double click the CD-ROM that contains VMware Tools.
  * After Auto-Run starts, follow the prompts to install.

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