[Users] How can I modify the vm template?

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On Oct 1, 2013, at 15:52 , hackxay <hackxay@163.com> wrote:
I want to modify the vm template and I can start the vm from the modified template.So,can I realize it?
you should be able to change most of the things. The same way as you would for a VM Thanks, michal
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This is a multi-part message in MIME format. --------------000107080807090705030105 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 8bit Dn(a 01.10.2013 15:52, hackxay wrote / napísal(a):
I want to modify the vm template and I can start the vm from the modified template.So,can I realize it?
I do not recommend this, but: I ensure, that the template is not being used (engine off ;) enable the lv on one of the hypervisors and access the templates disk directly. Then umount, disable the lv. -- Ernest Beinrohr, AXON PRO DevOps, Ing <http://www.beinrohr.sk/ing.php>, RHCE <http://www.beinrohr.sk/rhce.php>, RHCVA <http://www.beinrohr.sk/rhce.php>, LPIC <http://www.beinrohr.sk/lpic.php>, +421-2--6241-0360 <callto://+421-2--6241-0360>, +421-903--482-603 <callto://+421-903--482-603> icq:28153343, skype:oernii-work <callto://oernii-work>, jabber:oernii@jabber.org ------------------------------------------------------------------------ "For a successful technology, reality must take precedence over public relations, for Nature cannot be fooled." Richard Feynman --------------000107080807090705030105 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit <html> <head> <meta content="text/html; charset=ISO-8859-1" http-equiv="Content-Type"> </head> <body bgcolor="#FFFFFF" text="#000000"> <div class="moz-cite-prefix">Dňa 01.10.2013 15:52, hackxay wrote / napísal(a):<br> </div> <blockquote cite="mid:12043a35.df5.141744a5712.Coremail.hackxay@163.com" type="cite"> <style type="text/css"> <!--@import url(scrollbar.css); --></style> <meta content="text/html; charset=ISO-8859-1" http-equiv="Content-Type"> <style> BLOCKQUOTE{margin-Top: 0px; margin-Bottom: 0px; margin-Left: 2em} body{FONT-SIZE:12.1pt; COLOR:#001; FONT-FAMILY:宋体,serif;} </style> <meta name="GENERATOR" content="MSHTML 11.00.9600.16384"> <base target="_blank"> <div><font color="#c0c0c0" face="Verdana" size="2"><span id="_FlashSignName">I want to modify the vm template and I can start the vm from the modified template.So,can I realize it?</span></font></div> <br> </blockquote> <br> I do not recommend this, but:<br> <br> I ensure, that the template is not being used (engine off ;) enable the lv on one of the hypervisors and access the templates disk directly. Then umount, disable the lv.<br> <br> <div class="moz-signature">-- <br> <div id="oernii_footer" style="color: gray;"> <span style="font-family: Lucida Console, Luxi Mono, Courier, monospace; font-size: 90%;"> Ernest Beinrohr, AXON PRO<br> DevOps, <a style="text-decoration: none; color: gray;" href="http://www.beinrohr.sk/ing.php">Ing</a>, <a style="text-decoration: none; color: gray;" href="http://www.beinrohr.sk/rhce.php">RHCE</a>, <a style="text-decoration: none; color: gray;" href="http://www.beinrohr.sk/rhce.php">RHCVA</a>, <a style="text-decoration: none; color: gray;" href="http://www.beinrohr.sk/lpic.php">LPIC</a>, <a style="text-decoration: none; color: gray;" href="callto://+421-2--6241-0360">+421-2--6241-0360</a>, <a style="text-decoration: none; color: gray;" href="callto://+421-903--482-603">+421-903--482-603</a><br> icq:28153343, <a style="text-decoration: none; color: gray;" href="callto://oernii-work">skype:oernii-work</a>, <a class="moz-txt-link-abbreviated" href="mailto:jabber:oernii@jabber.org">jabber:oernii@jabber.org</a> <br> </span> <hr style="height: 1px; width: 95%"> <span style="font-size: 70%;"> “For a successful technology, reality must take precedence over public relations, for Nature cannot be fooled.” Richard Feynman </span> </div> </div> <img src="http://www.oernii.sk/ga.php" moz-do-not-send="true" height="1" border="0" width="1"> </body> </html> --------------000107080807090705030105--

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This is a multi-part message in MIME format. --------------040107040504090905070201 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit Dňa 01.10.2013 17:07, hackxay wrote / napísal(a):
thank you! I want to change something about template, for example, the proagrams in the templates, and then, the vms has created from the template will have synchronous change.
No, the template change will only affect new systems from the template. -- Ernest Beinrohr, AXON PRO DevOps, Ing <http://www.beinrohr.sk/ing.php>, RHCE <http://www.beinrohr.sk/rhce.php>, RHCVA <http://www.beinrohr.sk/rhce.php>, LPIC <http://www.beinrohr.sk/lpic.php>, +421-2--6241-0360 <callto://+421-2--6241-0360>, +421-903--482-603 <callto://+421-903--482-603> icq:28153343, skype:oernii-work <callto://oernii-work>, jabber:oernii@jabber.org ------------------------------------------------------------------------ “For a successful technology, reality must take precedence over public relations, for Nature cannot be fooled.” Richard Feynman --------------040107040504090905070201 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: 8bit <html> <head> <meta content="text/html; charset=UTF-8" http-equiv="Content-Type"> </head> <body bgcolor="#FFFFFF" text="#000000"> <div class="moz-cite-prefix">Dňa 01.10.2013 17:07, hackxay wrote / napísal(a):<br> </div> <blockquote cite="mid:52c8a490.ec4.141748f554f.Coremail.hackxay@163.com" type="cite"> <meta content="text/html; charset=UTF-8" http-equiv="content-type"> <style type="text/css"> body { font-size:12pt; font-family:simsun,serif; } </style><!-- flashmail style begin --> <style type="text/css"> <!--@import url(E:\shanyou\\data\scrollbar.css); --> blockquote { margin-top:0; margin-bottom:0; margin-left:2em; } body { padding:0; margin:0; } </style><base target="_blank"><!-- flashmail style end --> <meta name="GENERATOR" content="MSHTML 11.00.9600.16384"> <div> <div><font color="#000000" face="微软雅黑" size="2">thank you!</font></div> <div><font face="微软雅黑" size="2">I want to change something about template, for example, the proagrams in the templates, and then, the vms has created from the template will have synchronous change.</font></div> <br> </div> </blockquote> <br> No, the template change will only affect new systems from the template.<br> <br> <div class="moz-signature">-- <br> <div id="oernii_footer" style="color: gray;"> <span style="font-family: Lucida Console, Luxi Mono, Courier, monospace; font-size: 90%;"> Ernest Beinrohr, AXON PRO<br> DevOps, <a style="text-decoration: none; color: gray;" href="http://www.beinrohr.sk/ing.php">Ing</a>, <a style="text-decoration: none; color: gray;" href="http://www.beinrohr.sk/rhce.php">RHCE</a>, <a style="text-decoration: none; color: gray;" href="http://www.beinrohr.sk/rhce.php">RHCVA</a>, <a style="text-decoration: none; color: gray;" href="http://www.beinrohr.sk/lpic.php">LPIC</a>, <a style="text-decoration: none; color: gray;" href="callto://+421-2--6241-0360">+421-2--6241-0360</a>, <a style="text-decoration: none; color: gray;" href="callto://+421-903--482-603">+421-903--482-603</a><br> icq:28153343, <a style="text-decoration: none; color: gray;" href="callto://oernii-work">skype:oernii-work</a>, <a class="moz-txt-link-abbreviated" href="mailto:jabber:oernii@jabber.org">jabber:oernii@jabber.org</a> <br> </span> <hr style="height: 1px; width: 95%"> <span style="font-size: 70%;"> “For a successful technology, reality must take precedence over public relations, for Nature cannot be fooled.” Richard Feynman </span> </div> </div> <img src="http://www.oernii.sk/ga.php" moz-do-not-send="true" height="1" border="0" width="1"> </body> </html> --------------040107040504090905070201--

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On Tue, 2013-10-01 at 23:14 +0800, hackxay wrote:
Does KVM not support it?
I'm not sure if KVM does support this, but I would say that this feature can be very dangerous as you might not know what's the status of your vm (e.g. someone installed new tools and you update a library in the template and therefor also in the vm which could make some of these tools unusable...). If you want to change/update applications either a configuration/software management solution like puppet, spacewalk,... or an application streaming solution would be the better and safer choice. Regards, René
2013-10-01
______________________________________________________________________ hackxay _______________________________________________ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users

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On 10/01/2013 06:37 PM, hackxay wrote:
I have a win7 vm created from a win7 template. You know, microsoft has a lot of bugs and I need to fix them through their patches. So I want to use this method to save manpower. Also, I manage a lot of vms and some of them want to batch to install a new software(office,player etc.).So I want to change the template. 2013-10-01 ------------------------------------------------------------------------ hackxay
_______________________________________________ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
the manual process described in the thread is the current recommended option. fixing this is something we dubbed "template versions", somewhere in the roadmap.

On Tue, 2013-10-01 at 17:09 +0200, Ernest Beinrohr wrote:
Dňa 01.10.2013 17:07, hackxay wrote / napísal(a):
thank you! I want to change something about template, for example, the proagrams in the templates, and then, the vms has created from the template will have synchronous change.
No, the template change will only affect new systems from the template.
That's right. The workflow for this is: - Adapt the master vm (the original vm you created the template from) - Delete all vms which belong to this template - Delete template - Create new template - Create new vms If you use vm pools you have to detach vms and recreate pools as well... Regards, René
-- Ernest Beinrohr, AXON PRO DevOps, Ing, RHCE, RHCVA, LPIC, +421-2--6241-0360, +421-903--482-603 icq:28153343, skype:oernii-work, jabber:oernii@jabber.org
______________________________________________________________________ “For a successful technology, reality must take precedence over public relations, for Nature cannot be fooled.” Richard Feynman
_______________________________________________ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users

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participants (5)
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Ernest Beinrohr
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hackxay
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Itamar Heim
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Michal Skrivanek
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René Koch (ovido)