Re: [ubuntu-uk] Virtualbox Advice
On 3 March 2014 12:56, Liam Proven lpro...@gmail.com wrote: I did not know that TBH I can't see why you'd want it; it's going to be slow, inefficient and since the main point of x86-64 is access to more memory a 32-bit host cannot provide this, it seems rather pointless. But I sit corrected, nonetheless. It is possible. Not desirable, but possible. I stand by the rest of my points, though. Actually the way this works is using the proper hardware virtualisation capabilities of the CPU, so the performance will be the same as running on a 64bit host OS. It's not possible to run a 64bit guest on a host system without VT-x or AMD-V (even if the host OS is 64bit) -- Matt Wheeler http://funkyh.at -- ubuntu-uk@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-uk https://wiki.ubuntu.com/UKTeam/
Re: [ubuntu-uk] Should ubuntu play DVDs gratis? [OFF TOPIC]
On 02/03/14 12:40, Nigel Verity wrote: Hi The implementation of the law in the UK is already a laughing stock. I think it would move into another league if an attempt were ever made to prosecute somebody for using libdvdcss2. I would just install and be damned. Nige OFF TOPIC: Another possibility is to try to influence lawmakers, our representatives(!) I joined The Pirate Party UK, who are active and well informed, and are consulted by organisations wanting good information. Pirate Parties are well represented in Europe mainland, particularly where representation is more than 'first past the post'. You may know that such parties were first invented by Rick Falkvinge, who is still active and has a website full of really interesting stuff. To celebrate a big birthday of mine, also after joining up into PPUK, I commanded a birthday cake from a big supermarket chain. Pirate theme. The theme was fully available, but the age had to have a zero put on the end ;-) Caused much mirth and merriment. Enjoy -- alan cocks -- ubuntu-uk@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-uk https://wiki.ubuntu.com/UKTeam/
Re: [ubuntu-uk] Virtualbox Advice
On 4 March 2014 11:28, Matt Wheeler m...@funkyhat.org wrote: Actually the way this works is using the proper hardware virtualisation capabilities of the CPU, so the performance will be the same as running on a 64bit host OS. It's not possible to run a 64bit guest on a host system without VT-x or AMD-V (even if the host OS is 64bit) I would expect it to use hardware virtualisation, yes, and that works fine on 32-bit host OSes. But surely a task on 32-bit host Windows or Linux can't execute 64-bit code, because the CPU isn't in Long Mode? And even with PAE, a 32-bit host OS has 4GiB of virtual address space, typically split 2:2 or 1:3 between kernel and app space, so a single 32-bit app can't have more than 2GiB or possibly 3GiB of process space. So your fancy 64-bit guest OS only gets 2GB or 3GB of contiguous address space, surely? In which case, what's the point of having a 64-bit guest? Mac OS X is a bit different and 32-bit kernels *can* execute 64-bit processes. AFAIAA Linux and Windows can't. I welcome correction, though. -- Liam Proven * Profile: http://lproven.livejournal.com/profile Email: lpro...@cix.co.uk * GMail/G+/Twitter/Flickr/Facebook: lproven MSN: lpro...@hotmail.com * Skype/AIM/Yahoo/LinkedIn: liamproven Tel: +44 20-8685-0498 * Cell: +44 7939-087884 -- ubuntu-uk@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-uk https://wiki.ubuntu.com/UKTeam/
