Re: [Xen-users] Unable to create fifth domU

[Stephan Seitz <s.seitz@xxxxxxxxxxxx>]

You're running ot of loop devices, depending on how your domO kernel is build,
add a max_loop=64 to your kernel- (aka the first module-) line of your grub
config and/or add
options loop max_loop=64
to your /etc/modprobe.d/options and/or
rmmod loop && modprobe loop max_loop=64

cheers,

Stephan


Pete Kay schrieb:
> Hi,
> I have created four domU, and when I try to create my fifth one, I am 
> getting error:
>  
> [root@bogon ~]# 
> virt-install                                                    What is 
> the name of your virtual machine? dom6
>  How much RAM should be allocated (in megabytes)? 256
>  What would you like to use as the disk (path)? 
> /var/lib/xen/images/dom6.img     How large would you like the disk 
> (/var/lib/xen/images/dom6.img) to be (in gigabytes)? 20
> Traceback (most recent call last):
>   File "/usr/sbin/virt-install", line 633, in ?
>     main()
>   File "/usr/sbin/virt-install", line 543, in main
>     guest, hvm, conn)
>   File "/usr/sbin/virt-install", line 178, in get_disks
>     get_disk(disk, size, sparse, guest, hvm, conn)
>   File "/usr/sbin/virt-install", line 133, in get_disk
>     if d.is_conflict_disk(conn) is True:
>   File "/usr/lib/python2.4/site-packages/virtinst/Guest.py", line 143, 
> in is_conflict_disk
>     vm = conn.lookupByID(id)
>   File "/usr/lib64/python2.4/site-packages/libvirt.py", line 547, in 
> lookupByID
>     if ret is None:raise libvirtError('virDomainLookupByID() failed', 
> conn=self)
> libvirt.libvirtError: virDomainLookupByID() failed
> [root@bogon ~]#
> Could someone please tell me what the problem could be? 
>  
> Here is the xm/info output and xm/list output:
>  
>  
> [root@bogon ~]# /usr/sbin/xm info
> host                   : bogon
> release                : 2.6.18-53.el5xen
> version                : #1 SMP Mon Nov 12 02:46:57 EST 2007
> machine                : x86_64
> nr_cpus                : 2
> nr_nodes               : 1
> sockets_per_node       : 1
> cores_per_socket       : 1
> threads_per_core       : 2
> cpu_mhz                : 3193
> hw_caps                : 
> bfebfbff:20000800:00000000:00000180:0000649d:00000000:00000001
> total_memory           : 1983
> free_memory            : 7
> xen_major              : 3
> xen_minor              : 1
> xen_extra              : .0-53.el5
> xen_caps               : xen-3.0-x86_64 xen-3.0-x86_32p
> xen_pagesize           : 4096
> platform_params        : virt_start=0xffff800000000000
> xen_changeset          : unavailable
> cc_compiler            : gcc version 4.1.2 20070626 (Red Hat 4.1.2-14)
> cc_compile_by          : mockbuild
> cc_compile_domain      :
> cc_compile_date        : Mon Nov 12 02:07:27 EST 2007
> xend_config_format     : 2
> [root@bogon ~]# /usr/sbin/xm list
> Name                                      ID Mem(MiB) VCPUs State   Time(s)
> Domain-0                                   0      674     2 r-----   1213.6
> dom1                                       1      249     1 -b----    458.4
> dom2                                       2      249     1 -b----    385.2
> dom3                                       4      255     1 -b----    615.7
> dom4                                       6      255     1 -b----    483.5
> [root@bogon ~]#
> Thanks alot for your help in advance.
>  
> Regards,
> Pete
>
>
> ------------------------------------------------------------------------
>
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--
Stephan Seitz
Senior System Administrator

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