On 29 April 2013 15:57, Bacon Zombie <[email protected]> wrote: > Hey Robin, > > First think I thought of when I read your email was the step I had to go > through to enable "raw" SATA access in ESXi. > > http://cyborgworkshop.org/2011/01/08/enabling-raw-sata-access-in-esxi-free/ > > This could be handing for testing your theories since VMWare thinks it's > dealing with a Virtual HD but it writing to a real disk you can disconnect > and boot in another system like any other drive. > > Hope this helps. > > The problem is I've not got the urge to test it, it was just a passing thought that I wondered if anyone else had had or explored.
Robin > > On 29 April 2013 11:09, Robin Wood <[email protected]> wrote: > >> I had this random thought last night that I don't have time to test out >> so was wondering if anyone else knew the answer... >> >> When you create a disk in VirtualBox it lets you create it as a >> dynamically growing one so that the file on host disk starts small but >> grows as you write more data into it from the guest. If in the guest you >> try to read areas of the disk which have not yet been created, for example >> by using dd to clone the whole disk, what do you get from the areas which >> haven't yet been created? >> >> I'd guess it would be either nulls or random stuff but just wondering. I >> could lab it up but don't have time at the moment. >> >> What if you use direct disk write to write to the last sector? Does the >> whole disk then get created on the host or does it do some smart >> allocation? Or does it just crash? >> >> Does VMWare behave the same? Could checking this space be a way to try to >> identify if you are in a VM? I know there are other, better, ways but the >> more options you have the better. >> >> Robin >> >> _______________________________________________ >> Pauldotcom mailing list >> [email protected] >> http://mail.pauldotcom.com/cgi-bin/mailman/listinfo/pauldotcom >> Main Web Site: http://pauldotcom.com >> > > > > -- > > > BaconZombie > > LOAD "*",8,1 > > _______________________________________________ > Pauldotcom mailing list > [email protected] > http://mail.pauldotcom.com/cgi-bin/mailman/listinfo/pauldotcom > Main Web Site: http://pauldotcom.com >
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