NDN: Re: Heads-up: Requiring PAE for running Xen
by Gateway＠redhat.com
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17 years, 11 months
NDN: Re: Heads-up: Requiring PAE for running Xen
by Gateway＠redhat.com
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17 years, 11 months
re: Heads-up: Requiring PAE for running Xen
by James Morris
Jeremy wrote:
> As we move forward with Xen enablement, there's a desire for
> being able to access more than 4 gigs of RAM on 32-bit Xen hosts. The
> options for handling this are
> 1) Another kernel. This is bad due to
> a) we're running out of CD space already
> b) keeping things matched up between the HV and the guest kernels
> c) migration is worlds of pain with two types of kernels
What about leaving the non-pae kernel out of the core distro and
distributing it online only via extras?
And document (b) and (c) as known issues which need to be evaluated
carefully by users before installation.
- James
--
James Morris
<jmorris(a)redhat.com>
17 years, 11 months
FC5 : xend won't start
by Ramesh Babu
Hi,
Im having problems in starting xend in FC5. Below are the steps i
performed to start it and i get "connection refused error".
Please let me know if i miss something and help me in solving the issue.
OS Version :
[root@ramesh ~]# uname -a
Linux rvrameshbabu 2.6.16-1.2111_FC5xen0 #1 SMP Thu May 4 21:51:32 EDT
2006 i686 i686 i386 GNU/Linux
Xen version :
[root@ramesh ~]# rpm -qa | grep xen
xen-3.0.1-4
kernel-xenU-2.6.16-1.2111_FC5
kernel-xen0-devel-2.6.16-1.2111_FC5
kernel-xenU-devel-2.6.16-1.2111_FC5
kernel-xen0-2.6.16-1.2111_FC5
Steps performed :
[root@ramesh ~]# xend start
[root@ramesh ~]# tail -90 /var/log/xend.log
[2006-05-15 17:45:00 xend] INFO (SrvDaemon:285) Xend Daemon started
[2006-05-15 17:45:00 xend] INFO (SrvDaemon:289) Xend changeset: unavailable .
[2006-05-15 17:45:00 xend] ERROR (SrvDaemon:299) Exception starting
xend ((111, 'Connection refused'))
Traceback (most recent call last):
File "/usr/lib/python2.4/site-packages/xen/xend/server/SrvDaemon.py",
line 293, in run
servers = SrvServer.create()
File "/usr/lib/python2.4/site-packages/xen/xend/server/SrvServer.py",
line 106, in create
root.putChild('xend', SrvRoot())
File "/usr/lib/python2.4/site-packages/xen/xend/server/SrvRoot.py",
line 40, in __init__
self.get(name)
File "/usr/lib/python2.4/site-packages/xen/web/SrvDir.py", line 82, in get
val = val.getobj()
File "/usr/lib/python2.4/site-packages/xen/web/SrvDir.py", line 52, in getobj
self.obj = klassobj()
File "/usr/lib/python2.4/site-packages/xen/xend/server/SrvDomainDir.py",
line 39, in __init__
self.xd = XendDomain.instance()
File "/usr/lib/python2.4/site-packages/xen/xend/XendDomain.py", line
550, in instance
inst.init()
File "/usr/lib/python2.4/site-packages/xen/xend/XendDomain.py", line
70, in init
xstransact.Mkdir(VMROOT)
File "/usr/lib/python2.4/site-packages/xen/xend/xenstore/xstransact.py",
line 317, in Mkdir
complete(path, lambda t: t.mkdir(*args))
File "/usr/lib/python2.4/site-packages/xen/xend/xenstore/xstransact.py",
line 323, in complete
t = xstransact(path)
File "/usr/lib/python2.4/site-packages/xen/xend/xenstore/xstransact.py",
line 20, in __init__
self.transaction = xshandle().transaction_start()
File "/usr/lib/python2.4/site-packages/xen/xend/xenstore/xsutil.py",
line 18, in xshandle
xs_handle = xen.lowlevel.xs.xs()
RuntimeError: (111, 'Connection refused')
[root@ramesh ~]# ls -l /var/run/xen*
-rwS--x--T 1 root root 5 May 15 17:45 /var/run/xenconsoled.pid
-rw-r--r-- 1 root root 4 May 15 17:45 /var/run/xend.pid
-rw------- 1 root root 5 May 15 17:45 /var/run/xenstore.pid
/var/run/xenstored:
total 0
srw------- 1 root root 0 May 15 17:45 socket
srw-rw---- 1 root root 0 May 15 17:45 socket_ro
[root@ramesh ~]# xm list
Error: Error connecting to xend: No such file or directory. Is xend running?
[root@ramesh ~]#
thanks
Ramesh
17 years, 11 months
VBS running out of loopbacks
by Jon Stone
Through some searching it appears that we are limited to 8 loopbacks
/dev/loop[0-7] on a default FC5 install. This was noted when we started
getting no backend can be found errors when trying to load a 9th VBS based
guest.
Is adding a basic option to /etc/modprobe.conf and rebooting the system the
safest way to unload everything and get the loop module reloaded to support
additional loopback devices?
Or should we explore additional solutions?
Right now the server's drive is one logical group with one logical volume
taking up 100% of the disk. I do not want to engage any file system
resizing and lvm resizing as this is a production environment.
Thoughts on this are appreciated.
17 years, 11 months
Re: Heads-up: Requiring PAE for running Xen
by Josh Boyer
On Thu, 2006-05-18 at 03:41 +0200, Arjan van de Ven wrote:
> > xen always needed p6 hardware (didnt run on k6-II for example),
> > and AFAIK p6 supports PAE always, so not any lose here i think
>
> you lose pentium M's.
Some of them. I have a Pentium M that has PAE. Though I just bought it
about a month ago.
josh
17 years, 11 months
Problem with xendomains
by sicurezza＠virtualsolution.net
Hi,
I set
/sbin/chkconfig --level 345 xendomains on
But doesn't work.
No output from command:
/etc/init.d/xendomains start
If i do:
/etc/init.d/xendomains start name_of_my_virtualserver
start with this warning:
/etc/init.d/xendomains: line 67: log_success_msg: command not found
xendomains stop works good but return this error.:
/etc/init.d/xendomains stop
Shutting down Xen domains: virtual7(save)
.../etc/init.d/xendomains: line 67: log_success_msg: command not found
How can i do to start all my virtual-servers ( clients ) on startup?
( i have think about a line on rc.local for every clients.. like:
/etc/init.d/xendomains start virtual1
/etc/init.d/xendomains start virtual2
/etc/init.d/xendomains start virtual3
....
Someone start Xen clients with screen command ?
Thanks
17 years, 11 months
Adding more space to the system withou using LVM in the host
by Ignacio Verona
Hi,
I've a few Virtual Machines running FC5, the host is also FC5. I want to
add some hd space to one of the VMs, and as they are using LVM, I think
it shouldn't be so difficult. This is the line configuring the harddisk
for the Xen VM:
disk = [ 'file:/mnt/md0/xenM/autillo/autillo1,xvda,w' ]
How do add other xvda? I want to create, for example
/mnt/md0/xenM/autillo/autillo2 and add that space to the LVM in the VM.
How should I do this? Maybe the solution is to export autillo2 as
/dev/hdX or /dev/sdX?
How should I format the file using mke2fs? Thanks a lot and sorry if the
questions are easy to solve, but I'm still not clear about that things!
17 years, 11 months
Re: [Fedora-xen] Best Practice for backing up running Virtual Machines
by Lamont R. Peterson
On Tuesday 16 May 2006 12:06pm, Ignacio Verona wrote:
> Thanks for your reply Lamont,
>
> unfortunately, there is no easy way I can migrate to LVM my virtual
> machines, as it's a production server, with no spare partitions right
> now. Which kind of backup software are you referring to? We have been
> using backup PC for a while, and are pretty happy with that piece of
> software. Will it make the work?
(Please, reply to the whole list. Thanks :) ).
I haven't used backup PC, so I can not comment on it.
I was thinking of Amanda (for an open source choice) or TapeWare (looks like
they changed to name to Backup Standard) [ http://www.yosemitetech.com/ ] for
the best commercial backup software I have personally used.
--
Lamont R. Peterson <lamont(a)gurulabs.com>
Senior Instructor
Guru Labs, L.C. [ http://www.GuruLabs.com/ ]
GPG Key fingerprint: F98C E31A 5C4C 834A BCAB 8CB3 F980 6C97 DC0D D409
17 years, 11 months
Question on disk usage and allocation per guest
by Jon Stone
Our guest images are stored in /home and an ls -al lists their allocated
sizes correctly.
However a du -sh on the image only lists the actual usage within the image.
And a df -h only shows actual disk usage for the entire server.
How do we get a list of the allocated disk space?
I assume that similar to memory, you cannot over-allocate disk space with
Xen guests?
Thanks
17 years, 11 months
