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

To: Pete Kay <petedao@xxxxxxxxx>
Subject: Re: [Xen-users] Unable to create fifth domU
From: Stephan Seitz <s.seitz@xxxxxxxxxxxx>
Date: Sun, 08 Jun 2008 16:50:59 +0200
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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
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