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Ralf Jansen

2007-Jul-04 15:01 UTC

[Xen-users] RuntimeError: domUloader

Hello,
i want to run 14 virtual Machines with xen. But i get the following
error-message:


xen-Dom0-Backup:/etc/xen/vm # xm list
Name                              ID Mem(MiB) VCPUs State  Time(s)
Domain-0                           0    14133     4 r-----    59.7
c10                                8      254     1 -b----    13.7
c2                                 1      254     1 -b----    14.1
c3                                 2      254     1 -b----    14.0
c5                                 3      254     1 ------    14.0
c6                                 4      254     1 -b----    14.0
c7                                 5      254     1 -b----    13.9
c8                                 6      254     1 -b----    13.9
c9                                 7      254     1 -b----    13.9
xen-Dom0-Backup:/etc/xen/vm # xm create c14
Using config file "c14".
/dev/loop8: Datei oder Verzeichnis nicht gefunden
Traceback (most recent call last):
  File "/usr/lib/xen/boot/domUloader.py", line 495, in ?
    main(sys.argv)
  File "/usr/lib/xen/boot/domUloader.py", line 481, in main
    setupDisks(disks)
  File "/usr/lib/xen/boot/domUloader.py", line 280, in setupDisks
    setupOneDisk(disk)
  File "/usr/lib/xen/boot/domUloader.py", line 272, in setupOneDisk
    wdisk = Wholedisk(cfg[1], physdev, loopfile)
  File "/usr/lib/xen/boot/domUloader.py", line 100, in __init__
    self.pcount   = self.scanpartitions()
  File "/usr/lib/xen/boot/domUloader.py", line 127, in scanpartitions
    self.loopsetup()
  File "/usr/lib/xen/boot/domUloader.py", line 112, in loopsetup
    raise RuntimeError("domUloader: Failure setting up loop dev")
RuntimeError: domUloader: Failure setting up loop dev
Error: Boot loader didn''t return any data!

Does someone know why i can not start more than 8 vms? 
Here is my config-file:

disk = [ ''phy:/dev/sdc14,hda2,w'',
''file:/mnt/swapspace/c14_swap.img,hda1,w'' ]
memory = 254
vcpus = 1
name = ''c14''
vif = [ ''mac=00:16:3e:1b:90:14'' ]
localtime = 1
on_poweroff = ''destroy''
on_reboot = ''restart''
on_crash = ''restart''
extra = '' TERM=xterm''
bootloader = ''/usr/lib/xen/boot/domUloader.py''
bootentry = ''hda2:/boot/vmlinuz-xen,/boot/initrd-xen''


Thank you,
r. jansen


 		
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Marc Patino Gómez

2007-Jul-04 15:09 UTC

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Re: [Xen-users] RuntimeError: domUloader

Hi Ralf,

you need more loop devices.  So append this to dom0 kernel: max_loop=255,

if you are using grub, edit the menu.lst and put something like:

kernel module          /boot/vmlinuz-2.6-xen0 root=/dev/sda1 ro max_loop=255

if you are using udev all will work all right, if not you probably must 
create the devices: /dev/loopXX

Regards,

Marc

Ralf Jansen wrote:> Hello,
> i want to run 14 virtual Machines with xen. But i get the following 
> error-message:
>
>
> xen-Dom0-Backup:/etc/xen/vm # xm list
> Name                              ID Mem(MiB) VCPUs State  Time(s)
> Domain-0                           0    14133     4 r-----    59.7
> c10                                8      254     1 -b----    13.7
> c2                                 1      254     1 -b----    14.1
> c3                                 2      254     1 -b----    14.0
> c5                                 3      254     1 ------    14.0
> c6                                 4      254     1 -b----    14.0
> c7                                 5      254     1 -b----    13.9
> c8                                 6      254     1 -b----    13.9
> c9                                 7      254     1 -b----    13.9
> xen-Dom0-Backup:/etc/xen/vm # xm create c14
> Using config file "c14".
> /dev/loop8: Datei oder Verzeichnis nicht gefunden
> Traceback (most recent call last):
>   File "/usr/lib/xen/boot/domUloader.py", line 495, in ?
>     main(sys.argv)
>   File "/usr/lib/xen/boot/domUloader.py", line 481, in main
>     setupDisks(disks)
>   File "/usr/lib/xen/boot/domUloader.py", line 280, in setupDisks
>     setupOneDisk(disk)
>   File "/usr/lib/xen/boot/domUloader.py", line 272, in
setupOneDisk
>     wdisk = Wholedisk(cfg[1], physdev, loopfile)
>   File "/usr/lib/xen/boot/domUloader.py", line 100, in __init__
>     self.pcount   = self.scanpartitions()
>   File "/usr/lib/xen/boot/domUloader.py", line 127, in
scanpartitions
>     self.loopsetup()
>   File "/usr/lib/xen/boot/domUloader.py", line 112, in loopsetup
>     raise RuntimeError("domUloader: Failure setting up loop dev")
> RuntimeError: domUloader: Failure setting up loop dev
> Error: Boot loader didn''t return any data!
>
> Does someone know why i can not start more than 8 vms?
> Here is my config-file:
>
> disk = [ ''phy:/dev/sdc14,hda2,w'', 
> ''file:/mnt/swapspace/c14_swap.img,hda1,w'' ]
> memory = 254
> vcpus = 1
> name = ''c14''
> vif = [ ''mac=00:16:3e:1b:90:14'' ]
> localtime = 1
> on_poweroff = ''destroy''
> on_reboot = ''restart''
> on_crash = ''restart''
> extra = '' TERM=xterm''
> bootloader = ''/usr/lib/xen/boot/domUloader.py''
> bootentry = ''hda2:/boot/vmlinuz-xen,/boot/initrd-xen''
>
>
> Thank you,
> r. jansen
>
> ------------------------------------------------------------------------
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>
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>
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> http://lists.xensource.com/xen-users

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Ralf Jansen

2007-Jul-04 16:14 UTC

head link

Re: [Xen-users] RuntimeError: domUloader

Hi Marc,
thank you. I create loop devices with:

for ((i=8;i<=255;i+=1)); do mknod -m 660 /dev/loop$i b 7 $i; done

and use the following /boot/grub/menu.lst:

title XEN
    root (hd0,0)
    kernel /boot/xen.gz
    module /boot/vmlinuz-xen root=/dev/sda1 max_loop=255 dom0_mem=512M mem=16G
vga=0x31a    resume=/dev/sda3  splash=silent showopts
    module /boot/initrd-xen

After rebooting i still have the same error-message:

Using config file "/etc/xen/vm/c14".
/dev/loop8: Kein passendes Gerät bzw. keine passende Adresse gefunden
Traceback (most recent call last):
  File "/usr/lib/xen/boot/domUloader.py", line 495, in ?
    main(sys.argv)
  File "/usr/lib/xen/boot/domUloader.py", line 481, in main
    setupDisks(disks)
  File "/usr/lib/xen/boot/domUloader.py", line 280, in setupDisks
    setupOneDisk(disk)
  File "/usr/lib/xen/boot/domUloader.py", line 272, in setupOneDisk
    wdisk = Wholedisk(cfg[1], physdev, loopfile)
  File "/usr/lib/xen/boot/domUloader.py", line 100, in __init__
    self.pcount   = self.scanpartitions()
  File "/usr/lib/xen/boot/domUloader.py", line 127, in scanpartitions
    self.loopsetup()
  File "/usr/lib/xen/boot/domUloader.py", line 112, in loopsetup
    raise RuntimeError("domUloader: Failure setting up loop dev")
RuntimeError: domUloader: Failure setting up loop dev
Error: Boot loader didn''t return any data!
xen-Dom0-Backup:/dev #    

Regards,
Ralf


Marc Patino Gómez <mpatino@es.clara.net> schrieb: Hi Ralf,

you need more loop devices.  So append this to dom0 kernel: max_loop=255,

if you are using grub, edit the menu.lst and put something like:

kernel module          /boot/vmlinuz-2.6-xen0 root=/dev/sda1 ro max_loop=255

if you are using udev all will work all right, if not you probably must 
create the devices: /dev/loopXX

Regards,

Marc

Ralf Jansen wrote:> Hello,
> i want to run 14 virtual Machines with xen. But i get the following 
> error-message:
>
>
> xen-Dom0-Backup:/etc/xen/vm # xm list
> Name                              ID Mem(MiB) VCPUs State  Time(s)
> Domain-0                           0    14133     4 r-----    59.7
> c10                                8      254     1 -b----    13.7
> c2                                 1      254     1 -b----    14.1
> c3                                 2      254     1 -b----    14.0
> c5                                 3      254     1 ------    14.0
> c6                                 4      254     1 -b----    14.0
> c7                                 5      254     1 -b----    13.9
> c8                                 6      254     1 -b----    13.9
> c9                                 7      254     1 -b----    13.9
> xen-Dom0-Backup:/etc/xen/vm # xm create c14
> Using config file "c14".
> /dev/loop8: Datei oder Verzeichnis nicht gefunden
> Traceback (most recent call last):
>   File "/usr/lib/xen/boot/domUloader.py", line 495, in ?
>     main(sys.argv)
>   File "/usr/lib/xen/boot/domUloader.py", line 481, in main
>     setupDisks(disks)
>   File "/usr/lib/xen/boot/domUloader.py", line 280, in setupDisks
>     setupOneDisk(disk)
>   File "/usr/lib/xen/boot/domUloader.py", line 272, in
setupOneDisk
>     wdisk = Wholedisk(cfg[1], physdev, loopfile)
>   File "/usr/lib/xen/boot/domUloader.py", line 100, in __init__
>     self.pcount   = self.scanpartitions()
>   File "/usr/lib/xen/boot/domUloader.py", line 127, in
scanpartitions
>     self.loopsetup()
>   File "/usr/lib/xen/boot/domUloader.py", line 112, in loopsetup
>     raise RuntimeError("domUloader: Failure setting up loop dev")
> RuntimeError: domUloader: Failure setting up loop dev
> Error: Boot loader didn''t return any data!
>
> Does someone know why i can not start more than 8 vms?
> Here is my config-file:
>
> disk = [ ''phy:/dev/sdc14,hda2,w'', 
> ''file:/mnt/swapspace/c14_swap.img,hda1,w'' ]
> memory = 254
> vcpus = 1
> name = ''c14''
> vif = [ ''mac=00:16:3e:1b:90:14'' ]
> localtime = 1
> on_poweroff = ''destroy''
> on_reboot = ''restart''
> on_crash = ''restart''
> extra = '' TERM=xterm''
> bootloader = ''/usr/lib/xen/boot/domUloader.py''
> bootentry = ''hda2:/boot/vmlinuz-xen,/boot/initrd-xen''
>
>
> Thank you,
> r. jansen
>
> ------------------------------------------------------------------------
> Besseren Schutz gegen Spam - jetzt bei dem neuen Yahoo! Mail 
> . 
>
> ------------------------------------------------------------------------
>
> _______________________________________________
> Xen-users mailing list
> Xen-users@lists.xensource.com
> http://lists.xensource.com/xen-users

_______________________________________________
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Hi Marc,<br>thank you. I create loop devices with:<br><br>for
((i=8;i&lt;=255;i+=1)); do mknod -m 660 /dev/loop$i b 7 $i;
done<br><br>and use the following
/boot/grub/menu.lst:<br><br>title
XEN<br>&nbsp;&nbsp;&nbsp; root
(hd0,0)<br>&nbsp;&nbsp;&nbsp; kernel
/boot/xen.gz<br>&nbsp;&nbsp;&nbsp; module /boot/vmlinuz-xen
root=/dev/sda1 max_loop=255 dom0_mem=512M mem=16G
vga=0x31a&nbsp;&nbsp;&nbsp; resume=/dev/sda3&nbsp; splash=silent
showopts<br>&nbsp;&nbsp;&nbsp; module
/boot/initrd-xen<br><br>After rebooting i still have the same
error-message:<br><br>Using config file
"/etc/xen/vm/c14".<br>/dev/loop8: Kein passendes Gerät bzw.
keine passende Adresse gefunden<br>Traceback (most recent call
last):<br>&nbsp; File "/usr/lib/xen/boot/domUloader.py",
line 495, in ?<br>&nbsp;&nbsp;&nbsp;
main(sys.argv)<br>&nbsp; File
"/usr/lib/xen/boot/domUloader.py", line 481, in
main<br>&nbsp;&nbsp;&nbsp;
setupDisks(disks)<br>&nbsp; File
"/usr/lib/xen/boot/domUloader.py", line 280, in
 setupDisks<br>&nbsp;&nbsp;&nbsp;
setupOneDisk(disk)<br>&nbsp; File
"/usr/lib/xen/boot/domUloader.py", line 272, in
setupOneDisk<br>&nbsp;&nbsp;&nbsp; wdisk = Wholedisk(cfg[1],
physdev, loopfile)<br>&nbsp; File
"/usr/lib/xen/boot/domUloader.py", line 100, in
__init__<br>&nbsp;&nbsp;&nbsp; self.pcount&nbsp;&nbsp;
= self.scanpartitions()<br>&nbsp; File
"/usr/lib/xen/boot/domUloader.py", line 127, in
scanpartitions<br>&nbsp;&nbsp;&nbsp;
self.loopsetup()<br>&nbsp; File
"/usr/lib/xen/boot/domUloader.py", line 112, in
loopsetup<br>&nbsp;&nbsp;&nbsp; raise
RuntimeError("domUloader: Failure setting up loop
dev")<br>RuntimeError: domUloader: Failure setting up loop
dev<br>Error: Boot loader didn''t return any
data!<br>xen-Dom0-Backup:/dev #&nbsp;&nbsp;&nbsp;
<br><br>Regards,<br>Ralf<br><br><br><b><i>Marc
Patino Gómez &lt;mpatino@es.clara.net&gt;</i></b>
schrieb:<blockquote class="replbq" style="border-left: 2px
solid rgb(16, 16, 255); margin-left: 5px; padding-left: 5px;"> Hi
 Ralf,<br><br>you need more loop devices.  So append this to dom0
kernel: max_loop=255,<br><br>if you are using grub, edit the
menu.lst and put something like:<br><br>kernel module         
/boot/vmlinuz-2.6-xen0 root=/dev/sda1 ro max_loop=255<br><br>if you
are using udev all will work all right, if not you probably must
<br>create the devices:
/dev/loopXX<br><br>Regards,<br><br>Marc<br><br>Ralf
Jansen wrote:<br>&gt; Hello,<br>&gt; i want to run 14
virtual Machines with xen. But i get the following <br>&gt;
error-message:<br>&gt;<br>&gt;<br>&gt;
xen-Dom0-Backup:/etc/xen/vm # xm list<br>&gt; Name                    
ID Mem(MiB) VCPUs State  Time(s)<br>&gt; Domain-0                     
0    14133     4 r-----    59.7<br>&gt; c10                           
8      254     1 -b----    13.7<br>&gt; c2                            
1      254     1 -b----    14.1<br>&gt; c3                            
2      254     1 -b----    14.0<br>&gt; c5
                    3      254     1 ------    14.0<br>&gt; c6        
4      254     1 -b----    14.0<br>&gt; c7                            
5      254     1 -b----    13.9<br>&gt; c8                            
6      254     1 -b----    13.9<br>&gt; c9                            
7      254     1 -b----    13.9<br>&gt; xen-Dom0-Backup:/etc/xen/vm #
xm create c14<br>&gt; Using config file
"c14".<br>&gt; /dev/loop8: Datei oder Verzeichnis nicht
gefunden<br>&gt; Traceback (most recent call last):<br>&gt; 
File "/usr/lib/xen/boot/domUloader.py", line 495, in
?<br>&gt;     main(sys.argv)<br>&gt;   File
"/usr/lib/xen/boot/domUloader.py", line 481, in main<br>&gt;
setupDisks(disks)<br>&gt;   File
"/usr/lib/xen/boot/domUloader.py", line 280, in
setupDisks<br>&gt;     setupOneDisk(disk)<br>&gt;   File
"/usr/lib/xen/boot/domUloader.py", line 272, in
setupOneDisk<br>&gt;     wdisk = Wholedisk(cfg[1], physdev,
loopfile)<br>&gt;   File
 "/usr/lib/xen/boot/domUloader.py", line 100, in
__init__<br>&gt;     self.pcount   =
self.scanpartitions()<br>&gt;   File
"/usr/lib/xen/boot/domUloader.py", line 127, in
scanpartitions<br>&gt;     self.loopsetup()<br>&gt;   File
"/usr/lib/xen/boot/domUloader.py", line 112, in
loopsetup<br>&gt;     raise RuntimeError("domUloader: Failure
setting up loop dev")<br>&gt; RuntimeError: domUloader: Failure
setting up loop dev<br>&gt; Error: Boot loader didn''t return
any data!<br>&gt;<br>&gt; Does someone know why i can not
start more than 8 vms?<br>&gt; Here is my
config-file:<br>&gt;<br>&gt; disk = [
''phy:/dev/sdc14,hda2,w'', <br>&gt;
''file:/mnt/swapspace/c14_swap.img,hda1,w'' ]<br>&gt;
memory = 254<br>&gt; vcpus = 1<br>&gt; name =
''c14''<br>&gt; vif = [
''mac=00:16:3e:1b:90:14'' ]<br>&gt; localtime =
1<br>&gt; on_poweroff = ''destroy''<br>&gt;
on_reboot = ''restart''<br>&gt; on_crash =
''restart''<br>&gt; extra = ''
TERM=xterm''<br>&gt; bootloader =
''/usr/lib/xen/boot/domUloader.py''<br>&gt;
 bootentry =
''hda2:/boot/vmlinuz-xen,/boot/initrd-xen''<br>&gt;<br>&gt;<br>&gt;
Thank you,<br>&gt; r. jansen<br>&gt;<br>&gt;
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Marc Patino Gómez

2007-Jul-06 08:42 UTC

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Re: [Xen-users] RuntimeError: domUloader

Hi Ralf,

to be sure that problem is related with loop devices, you can make the 
following test:

- Create a vbd:

# dd if=/dev/zero of=/tmp/test.img bs=4k count=10000
# mkfs.ext3 /tmp/test.img

- Try to mount it, (with the 7 xen domU running)

# mkdir /mnt/test
# mount -o loop /tmp/test.img /mnt/test

With losetup command, you can check the loop devices, for example:

#losetup /dev/loop1
/dev/loop1: [0804]:11239436 (/xen/images/popeye.img)

In my dom0 kernels shows some messages about how many loop are avaliable:

# dmesg | grep -i loop

loop: loaded (max 255 devices)


Regards,

Marc

Ralf Jansen wrote:> Sorry, yes, here the translation.:
>
> No matching Device found or no correkt address found.
>
> Regards,
> Ralf
>
> */mpatino@es.clara.net/* schrieb:
>
>     Hi Ralf,
>
>     can you translate
>
>     Kein passendes Gerät bzw. keine passende Adresse gefunden
>
>     sorry but I don''t understand german.
>
>     Regards,
>
>     Marc
>
>     > Hi Marc,
>     > thank you. I create loop devices with:
>     >
>     > for ((i=8;i<=255;i+=1)); do mknod -m 660 /dev/loop$i b 7 $i;
done
>     >
>     > and use the following /boot/grub/menu.lst:
>     >
>     > title XEN
>     > root (hd0,0)
>     > kernel /boot/xen.gz
>     > module /boot/vmlinuz-xen root=/dev/sda1 max_loop=255 dom0_mem=512M
>     > mem=16G vga=0x31a resume=/dev/sda3 splash=silent showopts
>     > module /boot/initrd-xen
>     >
>     > After rebooting i still have the same error-message:
>     >
>     > Using config file "/etc/xen/vm/c14".
>     > /dev/loop8: Kein passendes Gerät bzw. keine passende Adresse
>     gefunden
>     > Traceback (most recent call last):
>     > File "/usr/lib/xen/boot/domUloader.py", line 495, in ?
>     > main(sys.argv)
>     > File "/usr/lib/xen/boot/domUloader.py", line 481, in
main
>     > setupDisks(disks)
>     > File "/usr/lib/xen/boot/domUloader.py", line 280, in
setupDisks
>     > setupOneDisk(disk)
>     > File "/usr/lib/xen/boot/domUloader.py", line 272, in
setupOneDisk
>     > wdisk = Wholedisk(cfg[1], physdev, loopfile)
>     > File "/usr/lib/xen/boot/domUloader.py", line 100, in
__init__
>     > self.pcount = self.scanpartitions()
>     > File "/usr/lib/xen/boot/domUloader.py", line 127, in
scanpartitions
>     > self.loopsetup()
>     > File "/usr/lib/xen/boot/domUloader.py", line 112, in
loopsetup
>     > raise RuntimeError("domUloader: Failure setting up loop
dev")
>     > RuntimeError: domUloader: Failure setting up loop dev
>     > Error: Boot loader didn''t return any data!
>     > xen-Dom0-Backup:/dev #
>     >
>     > Regards,
>     > Ralf
>     >
>     >
>     > Marc Patino Gómez schrieb: Hi Ralf,
>     >
>     > you need more loop devices. So append this to dom0 kernel:
>     max_loop=255,
>     >
>     > if you are using grub, edit the menu.lst and put something like:
>     >
>     > kernel module /boot/vmlinuz-2.6-xen0 root=/dev/sda1 ro
>     > max_loop=255
>     >
>     > if you are using udev all will work all right, if not you
>     probably must
>     > create the devices: /dev/loopXX
>     >
>     > Regards,
>     >
>     > Marc
>     >
>     > Ralf Jansen wrote:
>     >> Hello,
>     >> i want to run 14 virtual Machines with xen. But i get the
following
>     >> error-message:
>     >>
>     >>
>     >> xen-Dom0-Backup:/etc/xen/vm # xm list
>     >> Name ID Mem(MiB) VCPUs State Time(s)
>     >> Domain-0 0 14133 4 r----- 59.7
>     >> c10 8 254 1 -b---- 13.7
>     >> c2 1 254 1 -b---- 14.1
>     >> c3 2 254 1 -b---- 14.0
>     >> c5 3 254 1 ------ 14.0
>     >> c6 4 254 1 -b---- 14.0
>     >> c7 5 254 1 -b---- 13.9
>     >> c8 6 254 1 -b---- 13.9
>     >> c9 7 254 1 -b---- 13.9
>     >> xen-Dom0-Backup:/etc/xen/vm # xm create c14
>     >> Using config file "c14".
>     >> /dev/loop8: Datei oder Verzeichnis nicht gefunden
>     >> Traceback (most recent call last):
>     >> File "/usr/lib/xen/boot/domUloader.py", line 495, in
?
>     >> main(sys.argv)
>     >> File "/usr/lib/xen/boot/domUloader.py", line 481, in
main
>     >> setupDisks(disks)
>     >> File "/usr/lib/xen/boot/domUloader.py", line 280, in
setupDisks
>     >> setupOneDisk(disk)
>     >> File "/usr/lib/xen/boot/domUloader.py", line 272, in
setupOneDisk
>     >> wdisk = Wholedisk(cfg[1], physdev, loopfile)
>     >> File "/usr/lib/xen/boot/domUloader.py", line 100, in
__init__
>     >> self.pcount = self.scanpartitions()
>     >> File "/usr/lib/xen/boot/domUloader.py", line 127, in
scanpartitions
>     >> self.loopsetup()
>     >> File "/usr/lib/xen/boot/domUloader.py", line 112, in
loopsetup
>     >> raise RuntimeError("domUloader: Failure setting up loop
dev")
>     >> RuntimeError: domUloader: Failure setting up loop dev
>     >> Error: Boot loader didn''t return any data!
>     >>
>     >> Does someone know why i can not start more than 8 vms?
>     >> Here is my config-file:
>     >>
>     >> disk = [ ''phy:/dev/sdc14,hda2,w'',
>     >> ''file:/mnt/swapspace/c14_swap.img,hda1,w'' ]
>     >> memory = 254
>     >> vcpus = 1
>     >> name = ''c14''
>     >> vif = [ ''mac=00:16:3e:1b:90:14'' ]
>     >> localtime = 1
>     >> on_poweroff = ''destroy''
>     >> on_reboot = ''restart''
>     >> on_crash = ''restart''
>     >> extra = '' TERM=xterm''
>     >> bootloader =
''/usr/lib/xen/boot/domUloader.py''
>     >> bootentry =
''hda2:/boot/vmlinuz-xen,/boot/initrd-xen''
>     >>
>     >>
>     >> Thank you,
>     >> r. jansen
>     >>
>     >>
>    
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>     >> .
>     >>
>     >>
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>     >
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Xen users - Jul 2007 - RuntimeError: domUloader

[Xen-users] RuntimeError: domUloader

Re: [Xen-users] RuntimeError: domUloader

Re: [Xen-users] RuntimeError: domUloader

Re: [Xen-users] RuntimeError: domUloader