Re: Mounting KVM image

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Sat, 2010-06-12 at 17:53 +0300, kalinix wrote:

> http://www.thegibson.org/blog/archives/467

Thank you, this worked. I couldn't do the "easy" way because the loop
module on my systems does not have a max_part parameter and it does not
create the /dev/loop0p* device nodes (it is CentOS 5 rather than Fedora
which is why I haven't asked about this here before, but the subject
came up and did lead to a solution for me; CentOS 5 is basically like a
very old version of Fedora). But the offset method worked so that I
could have the LVM partition directly on /dev/loop0, and then pvscan
could find it. I did have to modify my filters in /etc/lvm/lvm.conf so
that the loop devices would be scanned.

What I really want this for is to be able to restore individual files
from VM images. I back up my virtual machines with a script that pauses
the VM, makes a copy of the disk image, resumes the VM, and moves the
copy to our local mass storage device. Works great except that the only
way to restore individual files from a backup image prior to this was to
actually create a VM from the backup image and boot it. That involved a
lot of manual labor. Works fine when we only have a few test VMs, but if
we end up with dozens or hundreds of VMs in production, I am going to
need something more automated. This can be scripted as I expect the
offset is always going to be the same (or I could be clever and
calculate it from the output of fdisk, then remount with offset). Even
better, if we eventually do make the move from Xen to KVM, the same
techniques should still work.

--Greg


-- 
users mailing list
users@xxxxxxxxxxxxxxxxxxxxxxx
To unsubscribe or change subscription options:
https://admin.fedoraproject.org/mailman/listinfo/users
Guidelines: http://fedoraproject.org/wiki/Mailing_list_guidelines

[Index of Archives]     [Older Fedora Users]     [Fedora Announce]     [Fedora Package Announce]     [EPEL Announce]     [EPEL Devel]     [Fedora Magazine]     [Fedora Summer Coding]     [Fedora Laptop]     [Fedora Cloud]     [Fedora Advisory Board]     [Fedora Education]     [Fedora Security]     [Fedora Scitech]     [Fedora Robotics]     [Fedora Infrastructure]     [Fedora Websites]     [Anaconda Devel]     [Fedora Devel Java]     [Fedora Desktop]     [Fedora Fonts]     [Fedora Marketing]     [Fedora Management Tools]     [Fedora Mentors]     [Fedora Package Review]     [Fedora R Devel]     [Fedora PHP Devel]     [Kickstart]     [Fedora Music]     [Fedora Packaging]     [Fedora SELinux]     [Fedora Legal]     [Fedora Kernel]     [Fedora OCaml]     [Coolkey]     [Virtualization Tools]     [ET Management Tools]     [Yum Users]     [Yosemite News]     [Gnome Users]     [KDE Users]     [Fedora Art]     [Fedora Docs]     [Fedora Sparc]     [Libvirt Users]     [Fedora ARM]

  Powered by Linux