Hi Thomas,

I just got a bundle of new hardware, so now I free to make tests.

> Well, sure that doesn't look a correct UUID. But by what mechanism has
> these been created?

I install Debian Squeeze (via PXE+preseed, if this matters) and
install packages "ntp bridge-utils xen-qemu-dm-4.0 xen-linux-system
openssh-server rcs screen" (this is from my preseed.cfg).
Next I configure network, NTP, sources.list, enable "xend-unix-server"
is xend-config.sxp, edit strings XENDOMAINS_RESTORE and
XENDOMAINS_SAVE in /etc/default/xendomains (as described in
http://wiki.debian.org/Xen), make symlink from /usr/lib64/xen-4.0 to
/usr/lib64/xen and increase loop devices limit.
Now I reboot host couple of times and look on xenstored via script
from http://wiki.xensource.com/xenwiki/XenStore:

root@sl03500008177:~# ./viewstore.sh
/vm/00000000-0000-0000-0000-000000000000/on_xend_stop=ignore
/vm/00000000-0000-0000-0000-000000000000/shadow_memory=0
/vm/00000000-0000-0000-0000-000000000000/uuid=00000000-0000-0000-0000-000000000000
/vm/00000000-0000-0000-0000-000000000000/on_reboot=restart
/vm/00000000-0000-0000-0000-000000000000/image/ostype=linux
/vm/00000000-0000-0000-0000-000000000000/image/kernel=
/vm/00000000-0000-0000-0000-000000000000/image/cmdline=
/vm/00000000-0000-0000-0000-000000000000/image/ramdisk=
/vm/00000000-0000-0000-0000-000000000000/on_poweroff=destroy
/vm/00000000-0000-0000-0000-000000000000/bootloader_args=
/vm/00000000-0000-0000-0000-000000000000/on_xend_start=ignore
/vm/00000000-0000-0000-0000-000000000000/on_crash=restart
/vm/00000000-0000-0000-0000-000000000000/xend/restart_count=0
/vm/00000000-0000-0000-0000-000000000000/vcpus=16
/vm/00000000-0000-0000-0000-000000000000/vcpu_avail=65535
/vm/00000000-0000-0000-0000-000000000000/bootloader=
/vm/00000000-0000-0000-0000-000000000000/name=Domain-0
/vm/00000000-0000-0000-0000-000000000000-1/on_xend_stop=ignore
/vm/00000000-0000-0000-0000-000000000000-1/shadow_memory=0
/vm/00000000-0000-0000-0000-000000000000-1/uuid=00000000-0000-0000-0000-000000000000
/vm/00000000-0000-0000-0000-000000000000-1/on_reboot=restart
/vm/00000000-0000-0000-0000-000000000000-1/image/ostype=linux
/vm/00000000-0000-0000-0000-000000000000-1/image/kernel=
/vm/00000000-0000-0000-0000-000000000000-1/image/cmdline=
/vm/00000000-0000-0000-0000-000000000000-1/image/ramdisk=
/vm/00000000-0000-0000-0000-000000000000-1/on_poweroff=destroy
/vm/00000000-0000-0000-0000-000000000000-1/bootloader_args=
/vm/00000000-0000-0000-0000-000000000000-1/on_xend_start=ignore
/vm/00000000-0000-0000-0000-000000000000-1/on_crash=restart
/vm/00000000-0000-0000-0000-000000000000-1/xend/restart_count=0
/vm/00000000-0000-0000-0000-000000000000-1/vcpus=16
/vm/00000000-0000-0000-0000-000000000000-1/vcpu_avail=65535
/vm/00000000-0000-0000-0000-000000000000-1/bootloader=
/vm/00000000-0000-0000-0000-000000000000-1/name=Domain-0
/vm/00000000-0000-0000-0000-000000000000-2/on_xend_stop=ignore
/vm/00000000-0000-0000-0000-000000000000-2/shadow_memory=0
/vm/00000000-0000-0000-0000-000000000000-2/uuid=00000000-0000-0000-0000-000000000000
/vm/00000000-0000-0000-0000-000000000000-2/on_reboot=restart
/vm/00000000-0000-0000-0000-000000000000-2/image/ostype=linux
/vm/00000000-0000-0000-0000-000000000000-2/image/kernel=
/vm/00000000-0000-0000-0000-000000000000-2/image/cmdline=
/vm/00000000-0000-0000-0000-000000000000-2/image/ramdisk=
/vm/00000000-0000-0000-0000-000000000000-2/on_poweroff=destroy
/vm/00000000-0000-0000-0000-000000000000-2/bootloader_args=
/vm/00000000-0000-0000-0000-000000000000-2/on_xend_start=ignore
/vm/00000000-0000-0000-0000-000000000000-2/on_crash=restart
/vm/00000000-0000-0000-0000-000000000000-2/xend/restart_count=0
/vm/00000000-0000-0000-0000-000000000000-2/vcpus=16
/vm/00000000-0000-0000-0000-000000000000-2/vcpu_avail=65535
/vm/00000000-0000-0000-0000-000000000000-2/bootloader=
/vm/00000000-0000-0000-0000-000000000000-2/name=Domain-0
/local/domain/0/vm=/vm/00000000-0000-0000-0000-000000000000-2
/local/domain/0/device=
/local/domain/0/control/platform-feature-multiprocessor-suspend=1
/local/domain/0/error=
/local/domain/0/memory/target=32242160
/local/domain/0/guest=
/local/domain/0/hvmpv=
/local/domain/0/data=
/local/domain/0/cpu/15/availability=online
/local/domain/0/cpu/3/availability=online
/local/domain/0/cpu/8/availability=online
/local/domain/0/cpu/9/availability=online
/local/domain/0/cpu/5/availability=online
/local/domain/0/cpu/13/availability=online
/local/domain/0/cpu/0/availability=online
/local/domain/0/cpu/6/availability=online
/local/domain/0/cpu/12/availability=online
/local/domain/0/cpu/14/availability=online
/local/domain/0/cpu/2/availability=online
/local/domain/0/cpu/11/availability=online
/local/domain/0/cpu/1/availability=online
/local/domain/0/cpu/7/availability=online
/local/domain/0/cpu/4/availability=online
/local/domain/0/cpu/10/availability=online
/local/domain/0/description=
/local/domain/0/console/limit=1048576
/local/domain/0/console/type=xenconsoled
/local/domain/0/name=Domain-0
/local/domain/0/domid=0
/tool/xenstored=
root@sl03500008177:~#

That's all.

>> How can I remove it permanently, any useful idea?
>
> Have you tried xenstore-rm?

Yes, I have, but it doesn't have constant effect. Every reboot adds a new entry.

Regards,
Dmitry



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