This is my first attempt with xen and I''m following along with the quickstart guide from http://fedoraproject.org/wiki/FedoraXenQuickstartFC5. I have a fresh FC5 install that is fully updated. The box is a generic dell with 512MB and plenty of disk space. xend is running ok and xm list reports Name ID Mem(MiB) VCPUs State Time(s) Domain-0 0 256 2 r----- 1393.4 When I issue xenguest-install.py -n xentest -f /tmp/xentest -s 8 -r 256 -l http://localhost/fc5tree it fails with the following in /var/log/xend.log VmError: I need 257 MiB, but dom0_min_mem is 256 and shrinking to 256 MiB would leave only 236 MiB free. Did I miss a step in the install process? Is /tmp/xentest supposed to already exist? Or do I need more physical RAM? Regards, Gary Huntress Code 4113 Naval Undersea Warfare Center Newport, RI 02841 1-800-669-6892 x28990 _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
You need more RAM. Seems to me that the amount of RAM used by dom0+domU(s) needs to be < the amount of physical RAM on the machine. Try reducing the dom0 or domU RAM. You''ll probably need to run in text mode if you aren''t already. On 8/25/06, Huntress Gary B NPRI <HuntressGB@npt.nuwc.navy.mil> wrote:> > This is my first attempt with xen and I''m following along with the > quickstart guide from http://fedoraproject.org/wiki/FedoraXenQuickstartFC5 > . > > I have a fresh FC5 install that is fully updated. The box is a generic > dell with 512MB and plenty of disk space. xend is running ok and xm list > reports > > Name ID Mem(MiB) VCPUs State Time(s) > Domain-0 0 256 2 r----- 1393.4 > > When I issue > > xenguest-install.py -n xentest -f /tmp/xentest -s 8 -r 256 -l > http://localhost/fc5tree > > it fails with the following in /var/log/xend.log > > VmError: I need 257 MiB, but dom0_min_mem is 256 and shrinking to 256 MiB > would leave only 236 MiB free. > > Did I miss a step in the install process? Is /tmp/xentest supposed to > already exist? Or do I need more physical RAM? > > > Regards, > > Gary Huntress > Code 4113 > Naval Undersea Warfare Center > Newport, RI 02841 > 1-800-669-6892 x28990 > > > > _______________________________________________ > 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
Hello, If I recall correctly, Dom0 needs something like 64 MB of dedicated RAM to operate, so allocating the full amount of physical RAM to the VM will not work. -Adam On 8/25/06, XenResu <xenresu@gmail.com> wrote:> You need more RAM. Seems to me that the amount of RAM used by dom0+domU(s) > needs to be < the amount of physical RAM on the machine. Try reducing the > dom0 or domU RAM. You''ll probably need to run in text mode if you aren''t > already. > > > On 8/25/06, Huntress Gary B NPRI <HuntressGB@npt.nuwc.navy.mil> wrote: > > This is my first attempt with xen and I''m following along with the > quickstart guide from > http://fedoraproject.org/wiki/FedoraXenQuickstartFC5. > > > > I have a fresh FC5 install that is fully updated. The box is a generic > dell with 512MB and plenty of disk space. xend is running ok and xm list > reports > > > > Name ID Mem(MiB) VCPUs State > Time(s) > > Domain-0 0 256 2 > r----- 1393.4 > > > > When I issue > > > > xenguest-install.py -n xentest -f /tmp/xentest -s 8 -r 256 -l > http://localhost/fc5tree > > > > it fails with the following in /var/log/xend.log > > > > VmError: I need 257 MiB, but dom0_min_mem is 256 and shrinking to 256 MiB > would leave only 236 MiB free. > > > > Did I miss a step in the install process? Is /tmp/xentest supposed to > already exist? Or do I need more physical RAM? > > > > > > Regards, > > > > Gary Huntress > > Code 4113 > > Naval Undersea Warfare Center > > Newport, RI 02841 > > 1-800-669-6892 x28990 > > > > > > > > _______________________________________________ > > 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 > >-- -Adam _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Huntress Gary B NPRI
2006-Aug-25 16:13 UTC
[Xen-users] RE: Can''t Create Guest on FC5 System
Thanks for the tips I''ve received. I shrunk Dom0 enough so that I could proceed with installing the guest OS. The guest successfully boots the image and the FC5 proceeds through the installation. I select DHCP and successfully get an IP. The next step I get the error "failed to retrieve /fc5tree/Fedora/base/stage2.img Failed to connect to HTTP server" The server is running and I can see the first request for vmlinuz and initrd and I also verified that stage2.img is available....there are no requests in my apache log past the request for initrd. I''m assuming that there must be some sort of networking problem in the guest. But I am quite sure that it does get a DHCP address from our local office LAN. I thought that my location url of http://localhost might be the problem so I changed it to the ip of the box itself. I received the same error. Is there another reason that the guest cannot "see" the IP of the parent? Regards, Gary Huntress Code 4113 Naval Undersea Warfare Center Newport, RI 02841 1-800-669-6892 x28990 -----Original Message----- From: Huntress Gary B NPRI Sent: Friday, August 25, 2006 8:13 AM To: xen-users@lists.xensource.com Subject: Can''t Create Guest on FC5 System This is my first attempt with xen and I''m following along with the quickstart guide from http://fedoraproject.org/wiki/FedoraXenQuickstartFC5. I have a fresh FC5 install that is fully updated. The box is a generic dell with 512MB and plenty of disk space. xend is running ok and xm list reports Name ID Mem(MiB) VCPUs State Time(s) Domain-0 0 256 2 r----- 1393.4 When I issue xenguest-install.py -n xentest -f /tmp/xentest -s 8 -r 256 -l http://localhost/fc5tree it fails with the following in /var/log/xend.log VmError: I need 257 MiB, but dom0_min_mem is 256 and shrinking to 256 MiB would leave only 236 MiB free. Did I miss a step in the install process? Is /tmp/xentest supposed to already exist? Or do I need more physical RAM? Regards, Gary Huntress Code 4113 Naval Undersea Warfare Center Newport, RI 02841 1-800-669-6892 x28990 _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users