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Re: [Xen-users] Blktap in mainline kernel 3.x
I run a debian wheezy (testing) dom0 and it's 3.0.1 kernel does not have blktap(2) as you said however I did install the blktap dkms and was able to get the kernel module installed and running yet still domU's with blktap devices would just hang on boot with no error messages ever. I even tried recompiling the kernel and statically linking the blktap driver but it was the same results as using it modularized.
Sorry i can't help but to confirm your issue. I was also unable to get blktap working in centos6 with the 2.6 kernel. I use lvm-backed domU's but it would be nice to be able to store the swap or something locally with a tap: instead of file:
Thanks, DDV On Wed, Nov 2, 2011 at 7:14 AM, João Paulo <jtpaulo@xxxxxxxxxxxx> wrote:
Hi guys,
I am using blktap for implementing a custom disk device for XEN DomUs. I was using a previous version of Ubuntu that I need to upgrade to version 11.10. If i understood correctly, the blktap kernel module is not present in the mainline kernel 3.x. So my questions are:
Can I get blktap/blktap2 working on ubuntu 11.10? If yes, can you point me the procedure?
I saw that project Kronos is aiming at a blktap dkms module for debian/ubuntu http://blog.xen.org/index.php/2011/07/22/project-kronos/ . However, i tried it in a AMD64 bit distribution and the module was deployed correctly but blktap is still not working.
Is there any other linux distro, or alternative better than Ubuntu 11.10 for my objectives?
Finally, is there a better alternative for implementing custom I/O disk drivers for VMs instead of the blktap mechanism? I have not looked deeply to HVM-XEN and Qemu, would this solution be less painful?
Thanks for your help,
Kind Regards,
João Paulo
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