You''ve run out of loop devices: there''s some kernel parameter for fixing this (you''ll probably be able to find it in the mailing archives). I think it''s maxloop=n You also need to create new loop[n] device nodes in /dev. Cheers, Mark On Friday 17 June 2005 23:39, Michael Musson wrote:> All, > > I''m trying to see how many Xen domains I can create at one time. When I > attempt to create my 10th domain I get the error: > > Error: Error creating domain: vbd: Segment not found: > uname=file:/root/xen/run/vnode29_deb3.1_1.img > > Even though it''s clearly there: > > #ll /root/xen/run/vnode29_deb3.1_1.img > -rw-r--r-- 1 root root 104857600 Jun 17 > 14:29 /root/xen/run/vnode29_deb3.1_1.img > > Has anyone seen this before? > > -Michael > > > ###########Setup########### > > FC4 System > Dom0 Kernel: 2.6.11-1.1369_FC4xen0 > DomU Kernel: vmlinuz-2.6.11-1.1369_FC4xenU > > xm list: > Name Id Mem(MB) CPU State Time(s) Console > Domain-0 0 123 0 r---- 100.1 > vnode20 1 63 0 -b--- 27.3 9601 > vnode21 2 63 0 -b--- 26.8 9602 > vnode22 3 63 0 -b--- 26.3 9603 > vnode23 4 63 0 -b--- 26.0 9604 > vnode24 5 63 0 -b--- 25.6 9605 > vnode25 6 63 0 -b--- 25.4 9606 > vnode26 7 63 0 -b--- 25.3 9607 > vnode27 8 63 0 -b--- 24.8 9608 > > Domain Creation command: > xm create name="vnode29" kernel="/boot/vmlinuz-2.6.11-1.1369_FC4xenU" > memory=64 disk=''file:/root/xen/run/vnode29_deb3.1_1.img,sda1,w'' > root="/dev/sda1 rw" restart="onreboot" extra="VNODEIP=10.10.10.29 > SERVERIP=10.10.10.20 NODELIST= DOMNAME=vnode29 GATEWAY=10.10.10.99 > DNS=205.118.70.2" > > > > > _______________________________________________ > Xen-users mailing list > Xen-users@lists.xensource.com > http://lists.xensource.com/xen-users_______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
All, I''m trying to see how many Xen domains I can create at one time. When I attempt to create my 10th domain I get the error: Error: Error creating domain: vbd: Segment not found: uname=file:/root/xen/run/vnode29_deb3.1_1.img Even though it''s clearly there: #ll /root/xen/run/vnode29_deb3.1_1.img -rw-r--r-- 1 root root 104857600 Jun 17 14:29 /root/xen/run/vnode29_deb3.1_1.img Has anyone seen this before? -Michael ###########Setup########### FC4 System Dom0 Kernel: 2.6.11-1.1369_FC4xen0 DomU Kernel: vmlinuz-2.6.11-1.1369_FC4xenU xm list: Name Id Mem(MB) CPU State Time(s) Console Domain-0 0 123 0 r---- 100.1 vnode20 1 63 0 -b--- 27.3 9601 vnode21 2 63 0 -b--- 26.8 9602 vnode22 3 63 0 -b--- 26.3 9603 vnode23 4 63 0 -b--- 26.0 9604 vnode24 5 63 0 -b--- 25.6 9605 vnode25 6 63 0 -b--- 25.4 9606 vnode26 7 63 0 -b--- 25.3 9607 vnode27 8 63 0 -b--- 24.8 9608 Domain Creation command: xm create name="vnode29" kernel="/boot/vmlinuz-2.6.11-1.1369_FC4xenU" memory=64 disk=''file:/root/xen/run/vnode29_deb3.1_1.img,sda1,w'' root="/dev/sda1 rw" restart="onreboot" extra="VNODEIP=10.10.10.29 SERVERIP=10.10.10.20 NODELIST= DOMNAME=vnode29 GATEWAY=10.10.10.99 DNS=205.118.70.2" _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
The Wiki "http://wiki.xensource.com/xenwiki" has useful information like the following... :) http://wiki.xensource.com/xenwiki/XenFaq#head-b4167b873a6b3a6657ecf9339c44e4a0692f8ada 4.4. When I start a 9th domain using a loop-back file as its virtual disk why do I get "Error: vbd: Segment not found: uname=file:/path/to/image"? By default, Linux only allows up to 8 loop-back devices to be active. You can increase this number by setting max_loop=32 (etc) on the domain 0 kernel command line in Grub. On 6/17/05, Michael Musson <musson@clusterresources.com> wrote:> All, > > I''m trying to see how many Xen domains I can create at one time. When I > attempt to create my 10th domain I get the error: > > Error: Error creating domain: vbd: Segment not found: > uname=file:/root/xen/run/vnode29_deb3.1_1.img > > Even though it''s clearly there: > > #ll /root/xen/run/vnode29_deb3.1_1.img > -rw-r--r-- 1 root root 104857600 Jun 17 > 14:29 /root/xen/run/vnode29_deb3.1_1.img > > Has anyone seen this before? > > -Michael > > > ###########Setup########### > > FC4 System > Dom0 Kernel: 2.6.11-1.1369_FC4xen0 > DomU Kernel: vmlinuz-2.6.11-1.1369_FC4xenU > > xm list: > Name Id Mem(MB) CPU State Time(s) Console > Domain-0 0 123 0 r---- 100.1 > vnode20 1 63 0 -b--- 27.3 9601 > vnode21 2 63 0 -b--- 26.8 9602 > vnode22 3 63 0 -b--- 26.3 9603 > vnode23 4 63 0 -b--- 26.0 9604 > vnode24 5 63 0 -b--- 25.6 9605 > vnode25 6 63 0 -b--- 25.4 9606 > vnode26 7 63 0 -b--- 25.3 9607 > vnode27 8 63 0 -b--- 24.8 9608 > > Domain Creation command: > xm create name="vnode29" kernel="/boot/vmlinuz-2.6.11-1.1369_FC4xenU" > memory=64 disk=''file:/root/xen/run/vnode29_deb3.1_1.img,sda1,w'' > root="/dev/sda1 rw" restart="onreboot" extra="VNODEIP=10.10.10.29 > SERVERIP=10.10.10.20 NODELIST= DOMNAME=vnode29 GATEWAY=10.10.10.99 > DNS=205.118.70.2" > > > > > _______________________________________________ > Xen-users mailing list > Xen-users@lists.xensource.com > http://lists.xensource.com/xen-users >_______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users