Hi Henrik: When I tried to copy the file descriptor file a "Stale NFS file handle" error was generated: $ cp -f /proc/13196/fd/9 /tmp/guest.img cp: cannot stat `/proc/13196/fd/9': Stale NFS file handle I suppose that makes sense because the file was accidently deleted but from the NFS server perspective it really isn't there. Do you know of any way to work around it? > Or why not just attach a new disk to the guest and copy stuff inside the guest? I understand how that would work to recover individual files/directories but I don't understand how I would be able to recover the entire image. Can you explain? Thanks, Joe -----Original Message----- From: libvirt-users-bounces@xxxxxxxxxx [mailto:libvirt-users-bounces@xxxxxxxxxx] On Behalf Of Joe Linoff Sent: Monday, November 05, 2012 11:55 AM To: Henrik Ahlgren Cc: libvirt-users@xxxxxxxxxx Subject: Re: re-create disk image file Hi Henrik: Thank you. Both suggestions are excellent. Have you noticed spam messages from this email list? I have gotten several in the past couple of days. Regards, Joe -----Original Message----- From: Henrik Ahlgren [mailto:pablo@xxxxxxxxxxxxx] Sent: Monday, November 05, 2012 11:53 AM To: Joe Linoff Cc: libvirt-users@xxxxxxxxxx Subject: Re: re-create disk image file On Mon, Nov 05, 2012 at 11:03:11AM -0800, Joe Linoff wrote: > I am curious about how to re-create a disk image file from a running > guest when the original disk image file is accidentally deleted. This > came up recently during a test scenario but I couldn't figure out how > to do it. If you have unlinked the image, but qemu-kvm (or whatever hypervisor you are running) still has it open, you should be able to to recover it by going to /proc/PID/fd and looking for a file descriptor number that is a symlink to your deleted image. Just copy it to a safe place. I would first run sync inside the guest and maybe suspend it. It would be nice if you could switch it to single user mode with all filesystems mounted read-only, but whatever you do, avoid destroying the domain. Or why not just attach a new disk to the guest and copy stuff inside the guest? _______________________________________________ libvirt-users mailing list libvirt-users@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/libvirt-users _______________________________________________ libvirt-users mailing list libvirt-users@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/libvirt-users
