On Tue, May 09, 2017 at 02:09:56PM +0000, atlahua wrote:
> Hi there!
>
> I need to be able to start DVM's from different templates simultaneously.
> This feature is not available as far as I know.
> For this reason I am trying the next best thing which is to make /home and
> /usr/local to make sure that nothing is left when I power down a standard
> Template based VM.
>
> How can I achieve that?
>
> Thnx in advance for your contributions,
> A.
This will be incorporated in r4.
I've posted before with details of a simple way of running DVMs based on
different templates. It relies on the fact that generating a new
DVMTemplate leaves old DVMTemplates in place on disk.
I'll just quote my earlier mail:
First generate assorted disposableVMs using qvm-create-default-dvm and customize
them as you will. (Strictly this isn't necessary but you may as well get
your disposableVM just the way you want it.)
Because you can set disposableVMs with different netvms, and alternate
Qubes networking paths, it's possible to trigger disposableVMs using
different torVMs/ VPNs through different NICs, in the same time it takes
to load a disposableVM ordinarily.
I have a number of keyboard shortcuts to call a script with different
parameters, to do exactly this. It's multi-template disposableVMs on the
cheap, and works for me.
#!/bin/sh
if [ $# -eq 0 -o $# -gt 2 ] ; then
echo 'Usage: switch_dvm templatename [command]'
exit 1
fi
TEMPLATENAME=$1
DVMTMPL="$TEMPLATENAME"-dvm
DVMTMPLDIR="/var/lib/qubes/appvms/$DVMTMPL"
ROOT=/var/lib/qubes/dvmdata/savefile-root
DEFAULT=/var/lib/qubes/dvmdata/default-savefile
CURRENT=/var/run/qubes/current-savefile
SHMDIR=/dev/shm/qubes
SHMCOPY=$SHMDIR/current-savefile
if [ -d $DVMTMPLDIR ] ; then
rm -f $ROOT $DEFAULT $CURRENT
ln -s "$DVMTMPLDIR/dvm-savefile" $DEFAULT
ln -s "/var/lib/qubes/vm-templates/$TEMPLATENAME/root.img" $ROOT
rm -f $SHMCOPY
cp $DEFAULT $SHMCOPY || exit 1
chgrp qubes $SHMCOPY
chmod 660 $SHMCOPY
ln -s $SHMCOPY $CURRENT
rm /var/lib/qubes/dvmdata/vmdir
ln -s $DVMTMPLDIR /var/lib/qubes/dvmdata/vmdir
else
echo "Creating new dvm"
qvm-create-default-dvm $1
fi
if [ $2 ] ; then
echo $2 | /usr/lib/qubes/qfile-daemon-dvm qubes.VMShell dom0 DEFAULT red
fi
unman
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