Re: [Xen-devel] [help] How to install xen with my own kernel on grub2?

[Li Yechen <lccycc123@xxxxxxxxx>]

Use '/' to search for "xen" you will get all the config options.

all the options with "xen" is Yes or Module

That's why grub2 script cannot create the correct entry. You need to copy the .config file to /boot and rename it to config-yourKernelVersion. 

Great, I copy the .config to /boot , run grub2-mkconfig and see the entry of my kernel !

but that bug of  xen.lowlevel.xc.Error still happen.

On Sun, Jul 14, 2013 at 2:00 AM, Wei Liu <wei.liu2@xxxxxxxxxx> wrote:

On Sun, Jul 14, 2013 at 01:39:33AM +0800, Li Yechen wrote:
> >
> > Make sure your kernel has all the necessary Xen drivers compiled in or
> > loaded
> >
>
> in make menuconfig:
>
> Processor type and features  ---> Paravirtualized guest support
>  [*]   Xen guest support
>  [*]   Enable Xen debug and tuning parameters in debugfs
>
> Device Drivers  --->  Xen driver support
>
> These two is enough for kernel 3.9.4?
> I think kernel version > 3 should auto support Xen.
>

Use '/' to search for "xen" you will get all the config options.

Running as Xen guest != Running as Dom0

Wei.

>
>
> On Sun, Jul 14, 2013 at 1:20 AM, Wei Liu <wei.liu2@xxxxxxxxxx> wrote:
>
> > On Sun, Jul 14, 2013 at 01:11:12AM +0800, Li Yechen wrote:
> > > Yes! I have fixed this and thank you all the same.
> > > Now the problems come to xend start:
> > >
> > > xc: error: Could not obtain handle on privileged command interface (2 =
> > No
> > > such file or directory): Internal error
> > > Traceback (most recent call last):
> > >   File "/usr/sbin/xend", line 36, in <module>
> > >     from xen.xend.server import SrvDaemon
> > >   File "/usr/lib64/python2.7/site-packages/xen/xend/server/SrvDaemon.py",
> > > line 26, in <module>
> > >     import relocate
> > >   File "/usr/lib64/python2.7/site-packages/xen/xend/server/relocate.py",
> > > line 28, in <module>
> > >     from xen.xend import XendDomain
> > >   File "/usr/lib64/python2.7/site-packages/xen/xend/XendDomain.py", line
> > > 36, in <module>
> > >     from xen.xend import XendOptions, XendCheckpoint, XendDomainInfo
> > >   File "/usr/lib64/python2.7/site-packages/xen/xend/XendCheckpoint.py",
> > > line 20, in <module>
> > >     from xen.xend import balloon, sxp, image
> > >   File "/usr/lib64/python2.7/site-packages/xen/xend/image.py", line 46,
> > in
> > > <module>
> > >     xc = xen.lowlevel.xc.xc()
> > > xen.lowlevel.xc.Error: (1, 'Internal error', 'xc_interface_open failed:
> > No
> > > such file or directory')
> > >
> > > google says that /proc/xen should mount to xenfs, while I see no.
> > > I'm still searching the solution :(
> > >
> >
> > Make sure your kernel has all the necessary Xen drivers compiled in or
> > loaded.
> >
> > > why so many errors come out in Fedora?
> > > By the way, what kind of OS do you suggest in Xen development?
> > > I give up CentOS because it's too hard to find a suitable package when
> > > trying to install software. And the gcc version is also too low.
> > >
> > >
> >
> > Debian Wheezy works quite well for me. However you might need to compile
> > your own Dom0 kernel there seems to be a regression on its default 3.2
> > kernel. It might not boot on some hardware.
> >
> >
> > Wei.
> >
> > >
> > > On Sun, Jul 14, 2013 at 12:57 AM, Wei Liu <wei.liu2@xxxxxxxxxx> wrote:
> > >
> > > > On Sat, Jul 13, 2013 at 09:35:45PM +0800, Li Yechen wrote:
> > > > > Hi Meng,
> > > > >
> > > > > > Grub2 script checks the Xen options of each Linux kernel's
> > > > configuration
> > > > > > file under /boot. If no such config, it won't create the relative
> > > > entry.
> > > > > > You can have a look at the 20_linux_xen script under /etc/grub.d/
> > to
> > > > get
> > > > > > more details.
> > > > >
> > > > >
> > > > > Thank you very for your advice!  I does not find the config as you
> > said.
> > > > > Anyway I write a menuentry manually and now it seems to work.
> > > > >
> > > > > but then when I try to start xend, an error come out as:
> > > > >
> > > > >   File "/usr/sbin/xend", line 36, in <module>
> > > > >     from xen.xend.server import SrvDaemon
> > > > >   File
> > "/usr/lib64/python2.7/site-packages/xen/xend/server/SrvDaemon.py",
> > > > > line 20, in <module>
> > > > >     import xen.lowlevel.xc
> > > > > ImportError: libxenctrl.so.4.2: cannot open shared object file: No
> > such
> > > > > file or directory
> > > > >
> > > > > I think my steps to install xen is right. Google says that it's
> > something
> > > > > wrong with lib64.
> > > > >
> > > > > I never meet this error before in CentOS. Do you have any ideas?
> > > > >
> > > > >
> > > >
> > > > You probably need to edit /etc/ld.so.conf and  run 'ldconfig' to tell
> > > > the dynamic linker to pick up the newer installed libraries.
> > > >
> > > >
> > > > Wei.
> > > >
> > > > >
> > > > >
> > > > >
> > > > > On Sat, Jul 13, 2013 at 12:02 PM, Meng <xumengpanda@xxxxxxxxx>
> > wrote:
> > > > >
> > > > > > Hi Yechen,
> > > > > >
> > > > > > Grub2 script checks the Xen options of each Linux kernel's
> > > > configuration
> > > > > > file under /boot. If no such config, it won't create the relative
> > > > entry.
> > > > > >
> > > > > > You can have a look at the 20_linux_xen script under /etc/grub.d/
> > to
> > > > get
> > > > > > more details.
> > > > > >
> > > > > > Best,
> > > > > >
> > > > > > Meng
> > > > > >
> > > > > > ---
> > > > > > Meng Xu
> > > > > > Phd Candidate in Computer and Information Science
> > > > > > University of Pennsylvania
> > > > >
> > > > >
> > > > >
> > > > >
> > > > > --
> > > > > Yechen Li
> > > > >
> > > > > Team of System Virtualization and Cloud Computing
> > > > > School of Electronic Engineering  and Computer Science,
> > > > > Peking University, China
> > > > >
> > > > > Nothing is impossible because impossible itself  says: " I'm
> > possible "
> > > > > lccycc From PKU
> > > >
> > > > > _______________________________________________
> > > > > Xen-devel mailing list
> > > > > Xen-devel@xxxxxxxxxxxxx
> > > > > http://lists.xen.org/xen-devel
> > > >
> > > >
> > >
> > >
> > > --
> > > Yechen Li
> > >
> > > Team of System Virtualization and Cloud Computing
> > > School of Electronic Engineering  and Computer Science,
> > > Peking University, China
> > >
> > > Nothing is impossible because impossible itself  says: " I'm possible "
> > > lccycc From PKU
> >
>
>
>
> --
> Yechen Li
>
> Team of System Virtualization and Cloud Computing
> School of Electronic Engineering  and Computer Science,
> Peking University, China
>
> Nothing is impossible because impossible itself  says: " I'm possible "
> lccycc From PKU

--

Yechen Li

Team of System Virtualization and Cloud Computing 
School of Electronic Engineering  and Computer Science, 
Peking University, China

Nothing is impossible because impossible itself  says: " I'm possible "

lccycc From PKU

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