Xen users - Feb 2007 - please explain this xen error message to me (newbie here)

"an error has occured. no valid devices were found on which to create a
file
system"

this message is what I get installing a copy of fedroa6 on fedora6 using
xen.  now the instructions in fedora said either specify a file or
partition. I made sure the file I created (called feddy6_xen) in my
root/xenmachines directory had plenty of space..20gb left on that
partition...so shouldn''t it just install into the new file? and if I
can''t
install into a file but have to create a new partition first why does the
virt-manager in fedora ask me to create a file OR use a partition? thanks in
advance...btw I do see the file 6.8GB sitting there in my xenmachines
directory...so I can assume that the space has at least been allocated and
the virt-manager shows 500mb (half of my total memory) being used by the
virtual machine so I can only assume that the kernel is in fact up and
running in memory...so why this error message...thanks in advance for any
suggestions/thoughts. 
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I have exactly the same problem.

anyone got any ideas?


extendedping wrote:
> 
> "an error has occured. no valid devices were found on which to create
a
> file system"
> 
> this message is what I get installing a copy of fedroa6 on fedora6 using
> xen.  now the instructions in fedora said either specify a file or
> partition. I made sure the file I created (called feddy6_xen) in my
> root/xenmachines directory had plenty of space..20gb left on that
> partition...so shouldn''t it just install into the new file? and if
I can''t
> install into a file but have to create a new partition first why does the
> virt-manager in fedora ask me to create a file OR use a partition? thanks
> in advance...btw I do see the file 6.8GB sitting there in my xenmachines
> directory...so I can assume that the space has at least been allocated and
> the virt-manager shows 500mb (half of my total memory) being used by the
> virtual machine so I can only assume that the kernel is in fact up and
> running in memory...so why this error message...thanks in advance for any
> suggestions/thoughts. 
> 
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I put the guest system image file (5GB) in /home/cheney directory.
the following is a part of message:
Feb 28 20:00:19 pc77 kernel: audit(1172653219.831:68): avc:  denied  {
search } 
for  pid=6532 comm="tapdisk" name="home" dev=dm-0
ino=1310721
scontext=system_u:
system_r:xend_t:s0 tcontext=system_u:object_r:home_root_t:s0 tclass=dir

there are also a lot of messages as: 
Feb 28 21:30:42 pc77 kernel: 4gb seg fixup, process beagled (pid 2976),
cs:ip 73:00a12d61

i don''t know wot that is. but anyway,
many thanks !!!!!!.


extendedping wrote:
> 
> "an error has occured. no valid devices were found on which to create
a
> file system"
> 
> this message is what I get installing a copy of fedroa6 on fedora6 using
> xen.  now the instructions in fedora said either specify a file or
> partition. I made sure the file I created (called feddy6_xen) in my
> root/xenmachines directory had plenty of space..20gb left on that
> partition...so shouldn''t it just install into the new file? and if
I can''t
> install into a file but have to create a new partition first why does the
> virt-manager in fedora ask me to create a file OR use a partition? thanks
> in advance...btw I do see the file 6.8GB sitting there in my xenmachines
> directory...so I can assume that the space has at least been allocated and
> the virt-manager shows 500mb (half of my total memory) being used by the
> virtual machine so I can only assume that the kernel is in fact up and
> running in memory...so why this error message...thanks in advance for any
> suggestions/thoughts. 
> 
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> I have exactly the same problem. 
> anyone got any ideas?
Don''t use the GUI tools. You''ll need to "learn all the
way to the
bottom," including all the features and option of the vm configuration
files, as well as all the command line tools. None of the gui tools are
remotely near ready.

To install a vm into an image file use the dd, mkfs, qemu combination
technique. Thus:

% dd if=/dev/zero of=my.img base=1M count=1 seek=8192
% mkfs.ext3 -q -f my.img
% qemu -had my.img -cdrom /path/to/some/iso -boot 2 -vnc [ipaddress]:2

Then connect to the vnc console from there.

I recommend text based installs (you should see that option in your vnc
session).

C//



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