You should be able to view the console of your instance through the cloudstack UI. This should let you see what's happening on it.
> On 23 Nov 2013, at 13:11, Du Jun <dj199...@gmail.com> wrote: > > Hi Hamilton, > Now I can't access my VM via ssh,so I am unable to control my > vm.Please tell me how to unmount VM's ISO install media in my host? > > ---- > Best regards, > Frank > > 2013/11/23, Du Jun <dj199...@gmail.com>: >> Hi Hamilton, >> I think you are right! >> >> But how can I prevent it reinstalling?I need to unmount ISO install >> media and don't want to reinstall because there are a lot of important >> informations in my VM. >> >> Would you please tell me how to prevent things from bad to worse?Many >> thanks! >> >> ----- >> Best regards, >> Frank >> >> 2013/11/23, Sean Hamilton <s...@seanhamilton.co.uk>: >>> Did you un mount the ISO before stopping/starting your instance? Sounds >>> like >>> it's just trying to reinstall because your instance is booting from the >>> ISO >>> install media. >>> >>>> On 23 Nov 2013, at 12:28, Du Jun <dj199...@gmail.com> wrote: >>>> >>>> Hi all, >>>> I booted a VM via ISO and then stoped it.When I start it again and I >>>> found myself in front of VM OS reinstalling.That means,when I stop a >>>> VM booting via ISO,I will lose anything in the disk.It's too awful! Is >>>> my understanding correct?If so,is the root-disk of VM ephemeral? >>>> >>>> ----- >>>> Thank you! >>