Changes between Version 55 and Version 56 of VboxApps

Timestamp:

Aug 24, 2013, 2:29:02 AM (11 years ago)

Author:

Christian Beer

Comment:

add warning for interpreter based boinc_app scripts

VboxApps

@@ -243 +243 @@
 You can use the a single VM image for many applications.
 
-
+'''Attention:''' If your '''boinc_app''' is a bash or perl script you may get problems when the VM is restored from a snapshot. To circumvent this you have to change your startup script to copy the contents of the shared/ directory to another directory 'inside' the VM and execute it there. For example:
+{{{
+echo -- Launching boinc_app
+if [ -f /root/shared/boinc_app ]; then
+    mkdir /root/worker
+    cp -r /root/shared/* /root/worker/
+    cd /root/worker/
+    ./boinc_app
+    cd /root/
+    rm -rf /root/worker
+    shutdown -hP 0
+else
+}}}
+This way you can still reuse the VM for other applications but have to make sure that your '''boinc_app''' control script is copying the output files of the application to ´/root/shared/´ before exiting. This may take some time, so you should do something like:
+{{{
+cp outfile1.zip /root/shared/out1.zip.tmp
+cp outfile2.zip /root/shared/out2.zip.tmp
+{...}
+mv /root/shared/out1.zip.tmp /root/shared/out1.zip
+mv /root/shared/out2.zip.tmp /root/shared/out2.zip
+}}}
 
 === Example startup script ===