Databases
StackOverflow2013
Postsdbo
POVMware virtual machines wont resume from the command line
 

Note that there are some explanatory texts on larger screens.

plurals
  1. POVMware virtual machines wont resume from the command line
    primarykey
    data
    text
    <p>I'm running VMWare Workstation on Ubuntu 10.10. I have a series of virtual machines that I clone every week.</p> <p>I've written a bash script that cycles through each of the virtual machines, softly suspends it, clones it, and then attempts to resume it.</p> <p>The problem is, the VM's do not resume, so I have to manually resume them. I'm trying to figure out how I can modify the script I've written to ensure the VMs resume. I've included the script and a sample of the generated logfile showing the error message.</p> <pre><code>#!/bin/bash ##Author: William Cooper ##Date: 2/15/2011 ## Purpose: Perform full backups of Virtual Machines ## Running under VMWare Workstation ## Script won't run if the /nas directory doesn't exist ## The /nas directory is a mounted Buffalo Terastation ## Check /etc/fstab if this mountpoint is broken BACKUPDEST="/nas" ## No need to modify HOST=`hostname` DATEFILE=`/bin/date +%G%m%d` ## Run Command to find list of VM names: ## this will only be the name of the vm, no path and no .vmx VMLIST=`vmrun list | grep '/' | cut -d'/' -f3 | cut -d'.' -f1` ## Initialize Counter variable used to cycle through VMs in VMARRAY variable COUNTER=1 ## Run Command to find list of VM Names and then store them in an Array: ## This will include full pathnames VMARRAY=( `vmrun list | grep '/'` ) ################################################################# ## Functions ## ## Notify the starting time of backup in the log ## function startScript { echo echo "----------------------------------------------------" echo "START - ${VM}" echo "Host: ${HOST}" echo "Date: `date`" echo } ## ## Suspend VM ## function suspendVM { ## Suspend the VM echo "Attempting to softly suspend "${VM}" . . ." vmrun suspend ${VMARRAY[${COUNTER}]} soft echo "${VM} Suspended on `date`" echo } ## ## Backup VM ## function doBackup { ## Check to see if the correct backup directory exists. if [ ! -d ${BACKUPDEST}/${VM} ]; then echo "${BACKUPDEST}/${VM} does not exist, creating . . ." mkdir "${BACKUPDEST}/${VM}" echo fi ## Backup VM (clone) echo "Backup of "${VM}" began: `date`" echo "Backup to ${BACKUPDEST}/${VM}/BACKUP/${DATEFILE} . . ." mkdir ${BACKUPDEST}/${VM}/BACKUP/${DATEFILE} vmrun clone ${VMARRAY[${COUNTER}]} ${BACKUPDEST}/${VM}/BACKUP/${DATEFILE}/${VM}.vmx full echo "Backup of "${VM}" ended: `date`" echo } ## ## Start VM ## function doStart { ## Resume VMs which were running [--type gui|sdl|vrdp|headless] echo "Attempting to resume "${VM}" . . ." vmrun start ${VMARRAY[${COUNTER}]} echo "${VM} Resumed on `date`" echo } ## ## Notify the finishing time of backup in the log ## function finishScript { echo "FINISH - ${VM}" echo "Host: ${HOST}" echo "Date: `date`" echo "----------------------------------------------------" echo } ################################################################# ## Script for VM in ${VMLIST} do sleep 1 ## StartScrip executes for logging startScript ## Suspend VM performs soft suspend suspendVM sleep 3 ## Do Backup performs the VM clone doBackup sleep 3 ## Start VM performs start vm doStart sleep 3 ## FinishScript executes for logging finishScript ## Increment the Counter COUNTER=${COUNTER}+1 done | tee "${BACKUPDEST}/logs/VMClone_${DATEFILE}.log" ## Script ################################################################# exit </code></pre> <p>An example of the generated logfile for each VM is shown below.</p> <pre><code>---------------------------------------------------- START - vmname Host: servername Date: Sat Feb 19 12:30:29 CST 2011 Attempting to softly suspend vmname . . . vmname Suspended on Sat Feb 19 12:30:44 CST 2011 Backup of vmname began: Sat Feb 19 12:30:47 CST 2011 Backup to /nas/vmname/BACKUP/20110219 . . . Backup of vmname ended: Sat Feb 19 12:43:16 CST 2011 Attempting to resume vmname . . . Error: Cannot launch the UI because no display server is present in the current environment vmname Resumed on Sat Feb 19 12:43:20 CST 2011 FINISH - vmname Host: servername Date: Sat Feb 19 12:43:23 CST 2011 ---------------------------------------------------- </code></pre> <p>Error: Cannot launch the UI because no display server is present in the current environment</p>
    singulars
    1. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. PTQuestion
    1. This table or related slice is empty.
    1. USLucretius
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PO
      singulars
      1. PTAnswer
    2. PO
      singulars
      1. PTAnswer
    3. PO
      singulars
      1. PTAnswer
    1. VO
      singulars
      1. POVMware virtual machines wont resume from the command line
      1. USThomas
      1. VTFavorite
    2. VO
      singulars
      1. POVMware virtual machines wont resume from the command line
      1. This table or related slice is empty.
      1. VTUpMod
    1. COYour counter increment works by way of a side effect of sorts. When you do `COUNTER=${COUNTER}+1` it builds an increasingly long string of the form `1+1+1+1+1` which gets arithmetically evaluated when it's used as an array subscript. I would recommend using `((COUNTER++))` instead. Also, you don't need all the decoration for array subscripts. You can use: `${VMARRAY[COUNTER]}` for example. Also, I recommend using `$()` instead of backticks for command substitution. They're more readable and can be more easily nested, etc. As for your question, can you provide more details of your environment?
      singulars
      1. POVMware virtual machines wont resume from the command line
      1. USDennis Williamson
    2. COX11 needs to be running and the `DISPLAY` variable needs to have a meaningful value.
      singulars
      1. POVMware virtual machines wont resume from the command line
      1. USDennis Williamson
    3. COThanks for the tip on `((COUNTER++))`. `$()` does indeed feel cleaner, but aside from the code cleaning suggestions you've given I'm not sure why the DISPLAY global breaks? I run a cronjob that calls the script above every saturday. I think what I'm going to try now is just manually setting `DISPLAY=:0.0` in the script to see if that fixes it. Thanks.
      singulars
      1. POVMware virtual machines wont resume from the command line
      1. USLucretius
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload