Re: [gentoo-user] Making XEN functional
On Sunday, March 23, 2014 07:53:22 AM Facundo Curti wrote:
Hi list! :) First at all, I apologize if my english is not perfect,
I know i'm not the only non-english speak on list, but I apologize any
way jeje :P
I'm trying to install XEN for first time on my gentoo desktop machine.
my hardware specs to take into consideration are:
i7 proccessor - 4GB ram
SDD disk parted using GPT
EFI mother. But also supports boot like BIOS.
I'm following the guide from wiki for firsts steeps [1], but having in
consideration the xen doc [2] and arch wiki [3].
The question is that I'm having 2 problems :/
First: I installed xen, and xen-tools. But I don't know why now I cant
recompile xen-tools ._. The output is [tmp1]. I just can see a econf
failed, but I cant find how to fix it. My
emerge --info '=app-emulation/xen-tools-4.3.1-r5::gentoo' is [tmp2]
emerge -pqv '=app-emulation/xen-tools-4.3.1-r5::gentoo' is [tmp3]
/var/tmp/portage/app-emulation/xen-tools-4.3.1-r5/temp/build.log [tmp4]
/var/tmp/portage/app-emulation/xen-tools-4.3.1-r5/temp/environment[tmp5]
I see this in tmp:
*
checking whether the C compiler works... no
configure: error: in `/var/tmp/portage/app-emulation/xen-tools-4.3.1-
r5/work/xen-4.3.1/tools':
configure: error: C compiler cannot create executables
**
Please fix your C-compiler. What does the following command return?
# gcc-config -L
But really, this is my minor problem :/ XEN does not work at all :P
I re-emerged all my system with emerge -e world, compiled my kernel,
and configured grub. The system looks like starts with XEN. (When I
boot the system, shows something about XEN that I cant read, and next
starts loading the kernel).
Once in the system, I try to make a xm list, xm show and also I try to
execute xend from a console. But every one says:
Traceback (most recent call last):
File /usr/sbin/xend, line 36, in module
from xen.xend.server import SrvDaemon
ImportError: No module named xen.xend.server
Looks like XEN can't find the modules, but I cant find where XEN stores
it :/ I made a
find / xen.xend
Please use the xl command set. xm is deprecated.
Please also ensure you start the xen services:
# /etc/init.d/xencommons start
# /etc/init.d/xenstored start
# /etc/init.d/xenconsoled start
before trying the xl commands.
and this give me 0 results. maybe this wasn't installed?
My .config from kernel is [configKernel] and my [grub.cfg]
I will check those if the above didn't solve it.
I have the following installed on my server:
[I] app-emulation/xen
Installed versions: 4.3.1-r5^t{tbz2}(12:09:22 PM 02/21/2014)
(efi -custom-cflags -debug -flask -xsm)
[I] app-emulation/xen-tools
Installed versions: 4.3.1-r5^t{tbz2}(12:14:51 PM 02/21/2014)
(api hvm pam qemu screen -custom-cflags -debug -doc -flask -ocaml -pygrub -
python -static-libs -xend
PYTHON_SINGLE_TARGET=python2_7 -python2_6 PYTHON_TARGETS=python2_7 -
python2_6)
--
Joost
Re: [gentoo-user] Making XEN functional
On 23-Mar-2014 5:46 pm, J. Roeleveld jo...@antarean.org wrote:
On Sunday, March 23, 2014 07:53:22 AM Facundo Curti wrote:
Hi list! :) First at all, I apologize if my english is not perfect,
I know i'm not the only non-english speak on list, but I apologize any
way jeje :P
I'm trying to install XEN for first time on my gentoo desktop machine.
my hardware specs to take into consideration are:
i7 proccessor - 4GB ram
SDD disk parted using GPT
EFI mother. But also supports boot like BIOS.
I'm following the guide from wiki for firsts steeps [1], but having in
consideration the xen doc [2] and arch wiki [3].
The question is that I'm having 2 problems :/
First: I installed xen, and xen-tools. But I don't know why now I cant
recompile xen-tools ._. The output is [tmp1]. I just can see a econf
failed, but I cant find how to fix it. My
emerge --info '=app-emulation/xen-tools-4.3.1-r5::gentoo' is [tmp2]
emerge -pqv '=app-emulation/xen-tools-4.3.1-r5::gentoo' is [tmp3]
/var/tmp/portage/app-emulation/xen-tools-4.3.1-r5/temp/build.log [tmp4]
/var/tmp/portage/app-emulation/xen-tools-4.3.1-r5/temp/environment[tmp5]
I see this in tmp:
*
checking whether the C compiler works... no
configure: error: in `/var/tmp/portage/app-emulation/xen-tools-4.3.1-
r5/work/xen-4.3.1/tools':
configure: error: C compiler cannot create executables
**
Please fix your C-compiler. What does the following command return?
# gcc-config -L
But really, this is my minor problem :/ XEN does not work at all :P
I re-emerged all my system with emerge -e world, compiled my kernel,
and configured grub. The system looks like starts with XEN. (When I
boot the system, shows something about XEN that I cant read, and next
starts loading the kernel).
Once in the system, I try to make a xm list, xm show and also I try to
execute xend from a console. But every one says:
Traceback (most recent call last):
File /usr/sbin/xend, line 36, in module
from xen.xend.server import SrvDaemon
ImportError: No module named xen.xend.server
Looks like XEN can't find the modules, but I cant find where XEN stores
it :/ I made a
find / xen.xend
Please use the xl command set. xm is deprecated.
Please also ensure you start the xen services:
# /etc/init.d/xencommons start
# /etc/init.d/xenstored start
# /etc/init.d/xenconsoled start
before trying the xl commands.
and this give me 0 results. maybe this wasn't installed?
My .config from kernel is [configKernel] and my [grub.cfg]
I will check those if the above didn't solve it.
I have the following installed on my server:
[I] app-emulation/xen
Installed versions: 4.3.1-r5^t{tbz2}(12:09:22 PM 02/21/2014)
(efi -custom-cflags -debug -flask -xsm)
[I] app-emulation/xen-tools
Installed versions: 4.3.1-r5^t{tbz2}(12:14:51 PM 02/21/2014)
(api hvm pam qemu screen -custom-cflags -debug -doc -flask -ocaml -pygrub
-
python -static-libs -xend
PYTHON_SINGLE_TARGET=python2_7 -python2_6 PYTHON_TARGETS=python2_7 -
python2_6)
--
Joost
I'm not meaning to hijack this thread, but isn't KVM a better option? The
difference between Xen and KVM is tiny I think, no?
Re: [gentoo-user] Making XEN functional
On Sunday, March 23, 2014 05:47:53 PM Nilesh Govindrajan wrote: I'm not meaning to hijack this thread, but isn't KVM a better option? The difference between Xen and KVM is tiny I think, no? Yes and no: If you simpy look at the basics, like running virtual machines, then KVM is a valid option. But, if you are running VMs to test stuff, you want to take valid snapshots of the current status. That means disk AND memory. I have not been able to find any information on how to make a snapshot of the memory used by a VM running under KVM. If there is a method, please point me in the right direction. With Xen, it's really easy to do: # xl save Domain FileWhereMemoryIsSaved -- make a snapshot of the disk(s), -- either by copying the file or using LVM snapshots # xl restore FileWhereMemoryIsSaved Or using any of the front-ends. XCP has it all built-in and allows usage of the Citrix client tool. -- Joost
Re: [gentoo-user] Making XEN functional
2014-03-23 9:35 GMT-03:00 J. Roeleveld jo...@antarean.org:
On Sunday, March 23, 2014 05:47:53 PM Nilesh Govindrajan wrote:
I'm not meaning to hijack this thread, but isn't KVM a better option? The
difference between Xen and KVM is tiny I think, no?
What I see on web, is that XEN uses paravirtualization. If you have
the correct hardware (like i have), XEN have better perfonmance. My
intel i7 have virtualization instructions. See [1][2] y [3]
I'm new in virtualization, i'm doing this for a desktop machine. Just
for learn. Instead of use VirtualBOX or VMware, I'm installing XEN.
Best perfonmance, and I can learn in the process.
2014-03-23 9:14 GMT-03:00 J. Roeleveld jo...@antarean.org:
I see this in tmp:
*
checking whether the C compiler works... no
configure: error: in `/var/tmp/portage/app-emulation/xen-tools-4.3.1-
r5/work/xen-4.3.1/tools':
configure: error: C compiler cannot create executables
**
Please fix your C-compiler. What does the following command return?
# gcc-config -L
/usr/lib/gcc/x86_64-pc-linux-gnu/4.7.3:/usr/lib/gcc/x86_64-pc-linux-gnu/4.7.3/32
Please use the xl command set. xm is deprecated.
:O I didn't know it was deprecated.
Please also ensure you start the xen services:
# /etc/init.d/xencommons start
# /etc/init.d/xenstored start
# /etc/init.d/xenconsoled start
before trying the xl commands.
I'm using systemd, so I tried to start this way:
systemctl enable xencommons
systemctl enable xenstored
systemctl enable xencosnsoled
And none exists :P (No such file or directory)
Instead, if I make it with /etc/init.d/xenstored start
it says:
WARNING: xenstored is already starting
(the same with xencommons and xenconsoled)
So, I try do xl list, and says:
libxl: error: libxl.c:87:libxl_ctx_alloc: Is xenstore daemon running?
failed to stat /var/run/xenstored.pid: No such file or directory
cannot init xl context
The correct way is start it from systemd? Or through /etc/init.d ?
My .config from kernel is [configKernel] and my [grub.cfg]
I will check those if the above didn't solve it.
I have the following installed on my server:
[I] app-emulation/xen
Installed versions: 4.3.1-r5^t{tbz2}(12:09:22 PM 02/21/2014)
(efi -custom-cflags -debug -flask -xsm)
[I] app-emulation/xen-tools
Installed versions: 4.3.1-r5^t{tbz2}(12:14:51 PM 02/21/2014)
(api hvm pam qemu screen -custom-cflags -debug -doc -flask -ocaml -pygrub -
python -static-libs -xend
PYTHON_SINGLE_TARGET=python2_7 -python2_6 PYTHON_TARGETS=python2_7 -
python2_6)
I have:
o.o. I dont have xen installed. ¿Is that possible? ._.
[ebuild N ] app-emulation/xen-4.3.1-r5 USE=efi xsm
-custom-cflags -debug -flask
I'm trying to install it but says:
!!! copy
/var/tmp/portage/app-emulation/xen-4.3.1-r5/image/boot/efi/gentoo/xen-4.3.1.efi
- /boot/efi/gentoo/xen-4.3.1.efi failed.
!!! [Errno 28] No space left on device
Maybe is because I tried to re-emerge this? o.o
--
Joost
Thank you for help!
[1]
http://www.linux.com/news/enterprise/systems-management/327628-kvm-or-xen-choosing-a-virtualization-platform
[2]
http://iopscience.iop.org/1742-6596/219/4/042005/pdf/1742-6596_219_4_042005.pdf
[3]
http://ark.intel.com/es/products/75122/intel-core-i7-4770-processor-8m-cache-up-to-3_90-ghz
Re: [gentoo-user] Making XEN functional
On Sun, March 23, 2014 19:26, Facundo Curti wrote:
2014-03-23 9:35 GMT-03:00 J. Roeleveld jo...@antarean.org:
On Sunday, March 23, 2014 05:47:53 PM Nilesh Govindrajan wrote:
I'm not meaning to hijack this thread, but isn't KVM a better option?
The
difference between Xen and KVM is tiny I think, no?
What I see on web, is that XEN uses paravirtualization. If you have
the correct hardware (like i have), XEN have better perfonmance. My
intel i7 have virtualization instructions. See [1][2] y [3]
I'm new in virtualization, i'm doing this for a desktop machine. Just
for learn. Instead of use VirtualBOX or VMware, I'm installing XEN.
Best perfonmance, and I can learn in the process.
On desktop, I would recommend something like Virtualbox.
Xen works best with a minimal host environment on a dedicated machine.
2014-03-23 9:14 GMT-03:00 J. Roeleveld jo...@antarean.org:
I see this in tmp:
*
checking whether the C compiler works... no
configure: error: in `/var/tmp/portage/app-emulation/xen-tools-4.3.1-
r5/work/xen-4.3.1/tools':
configure: error: C compiler cannot create executables
**
Please fix your C-compiler. What does the following command return?
# gcc-config -L
/usr/lib/gcc/x86_64-pc-linux-gnu/4.7.3:/usr/lib/gcc/x86_64-pc-linux-gnu/4.7.3/32
what about gcc-config -l (sorry, meant lower-case in previous email)
Please use the xl command set. xm is deprecated.
:O I didn't know it was deprecated.
Please also ensure you start the xen services:
# /etc/init.d/xencommons start
# /etc/init.d/xenstored start
# /etc/init.d/xenconsoled start
before trying the xl commands.
I'm using systemd, so I tried to start this way:
systemctl enable xencommons
systemctl enable xenstored
systemctl enable xencosnsoled
And none exists :P (No such file or directory)
I don't use systemd. You will need to find the correct unit-files for Xen.
Alternatively, use OpenRC.
Instead, if I make it with /etc/init.d/xenstored start
it says:
WARNING: xenstored is already starting
(the same with xencommons and xenconsoled)
So, I try do xl list, and says:
libxl: error: libxl.c:87:libxl_ctx_alloc: Is xenstore daemon running?
failed to stat /var/run/xenstored.pid: No such file or directory
cannot init xl context
The correct way is start it from systemd? Or through /etc/init.d ?
Correct way depends on the init-system you are using. Systemd does things
differently compared to OpenRC.
My .config from kernel is [configKernel] and my [grub.cfg]
I will check those if the above didn't solve it.
I have the following installed on my server:
[I] app-emulation/xen
Installed versions: 4.3.1-r5^t{tbz2}(12:09:22 PM 02/21/2014)
(efi -custom-cflags -debug -flask -xsm)
[I] app-emulation/xen-tools
Installed versions: 4.3.1-r5^t{tbz2}(12:14:51 PM 02/21/2014)
(api hvm pam qemu screen -custom-cflags -debug -doc -flask -ocaml
-pygrub -
python -static-libs -xend
PYTHON_SINGLE_TARGET=python2_7 -python2_6 PYTHON_TARGETS=python2_7 -
python2_6)
I have:
o.o. I dont have xen installed. ¿Is that possible? ._.
Yes, xen-tools can be installed seperately.
You need xen installed to be able to boot with it.
[ebuild N ] app-emulation/xen-4.3.1-r5 USE=efi xsm
-custom-cflags -debug -flask
I'm trying to install it but says:
!!! copy
/var/tmp/portage/app-emulation/xen-4.3.1-r5/image/boot/efi/gentoo/xen-4.3.1.efi
- /boot/efi/gentoo/xen-4.3.1.efi failed.
!!! [Errno 28] No space left on device
Maybe is because I tried to re-emerge this? o.o
Actually, you haven't got xen installed yet.
And the install fails because your EFI-boot partition is full.
Also, you need to ensure you boot correctly using Xen. The Linux kernel
should be loaded and started by Xen as the primary domain.
--
Joost
Re: [gentoo-user] Making XEN functional
2014-03-23 16:03 GMT-03:00 J. Roeleveld jo...@antarean.org:
On Sun, March 23, 2014 19:26, Facundo Curti wrote:
2014-03-23 9:35 GMT-03:00 J. Roeleveld jo...@antarean.org:
On Sunday, March 23, 2014 05:47:53 PM Nilesh Govindrajan wrote:
I'm not meaning to hijack this thread, but isn't KVM a better option?
The
difference between Xen and KVM is tiny I think, no?
What I see on web, is that XEN uses paravirtualization. If you have
the correct hardware (like i have), XEN have better perfonmance. My
intel i7 have virtualization instructions. See [1][2] y [3]
I'm new in virtualization, i'm doing this for a desktop machine. Just
for learn. Instead of use VirtualBOX or VMware, I'm installing XEN.
Best perfonmance, and I can learn in the process.
On desktop, I would recommend something like Virtualbox.
Xen works best with a minimal host environment on a dedicated machine.
Thank you for advice. I'm reading about so I can take a choice.
2014-03-23 9:14 GMT-03:00 J. Roeleveld jo...@antarean.org:
I see this in tmp:
*
checking whether the C compiler works... no
configure: error: in `/var/tmp/portage/app-emulation/xen-tools-4.3.1-
r5/work/xen-4.3.1/tools':
configure: error: C compiler cannot create executables
**
Please fix your C-compiler. What does the following command return?
# gcc-config -L
/usr/lib/gcc/x86_64-pc-linux-gnu/4.7.3:/usr/lib/gcc/x86_64-pc-linux-gnu/4.7.3/32
what about gcc-config -l (sorry, meant lower-case in previous email)
[1] x86_64-pc-linux-gnu-4.7.3 *
Please use the xl command set. xm is deprecated.
:O I didn't know it was deprecated.
Please also ensure you start the xen services:
# /etc/init.d/xencommons start
# /etc/init.d/xenstored start
# /etc/init.d/xenconsoled start
before trying the xl commands.
I'm using systemd, so I tried to start this way:
systemctl enable xencommons
systemctl enable xenstored
systemctl enable xencosnsoled
And none exists :P (No such file or directory)
I don't use systemd. You will need to find the correct unit-files for Xen.
Alternatively, use OpenRC.
yep, but I cant find this. Maybe is because XEN is not installed rigth now.
Instead, if I make it with /etc/init.d/xenstored start
it says:
WARNING: xenstored is already starting
(the same with xencommons and xenconsoled)
So, I try do xl list, and says:
libxl: error: libxl.c:87:libxl_ctx_alloc: Is xenstore daemon running?
failed to stat /var/run/xenstored.pid: No such file or directory
cannot init xl context
The correct way is start it from systemd? Or through /etc/init.d ?
Correct way depends on the init-system you are using. Systemd does things
differently compared to OpenRC.
My .config from kernel is [configKernel] and my [grub.cfg]
I will check those if the above didn't solve it.
I have the following installed on my server:
[I] app-emulation/xen
Installed versions: 4.3.1-r5^t{tbz2}(12:09:22 PM 02/21/2014)
(efi -custom-cflags -debug -flask -xsm)
[I] app-emulation/xen-tools
Installed versions: 4.3.1-r5^t{tbz2}(12:14:51 PM 02/21/2014)
(api hvm pam qemu screen -custom-cflags -debug -doc -flask -ocaml
-pygrub -
python -static-libs -xend
PYTHON_SINGLE_TARGET=python2_7 -python2_6 PYTHON_TARGETS=python2_7 -
python2_6)
I have:
o.o. I dont have xen installed. ¿Is that possible? ._.
Yes, xen-tools can be installed seperately.
You need xen installed to be able to boot with it.
I have xen-tools. But I dont have xen.
[ebuild N ] app-emulation/xen-4.3.1-r5 USE=efi xsm
-custom-cflags -debug -flask
I'm trying to install it but says:
!!! copy
/var/tmp/portage/app-emulation/xen-4.3.1-r5/image/boot/efi/gentoo/xen-4.3.1.efi
- /boot/efi/gentoo/xen-4.3.1.efi failed.
!!! [Errno 28] No space left on device
Maybe is because I tried to re-emerge this? o.o
Actually, you haven't got xen installed yet.
And the install fails because your EFI-boot partition is full.
Also, you need to ensure you boot correctly using Xen. The Linux kernel
should be loaded and started by Xen as the primary domain.
Yes. I had xen installed. I booted from grub with it, and XEN loaded
my system. But once inside, I tried to re-emerge. So, XEN was
unistalled, and right now it can't be emerged any more ._.
I didn't shutdown my computer yet, So I still using a kernel XEN, in a domain0.
I dont know why i dont have space on EFI anymore ._. If I installed it
once, why I cant do this twice? ._. I cleaned, on efi, the files from
old install xen.
This is all i have:
/boot/efi:
EFI
tmp
/boot/efi/EFI:
gentoo
/boot/efi/EFI/gentoo:
grubx64.efi
df -h:
/dev/sdb12,0M 124K 1,9M 7% /boot/efi
It just have 2MB space, because I do it following the gentoo handbook
that recommends 4MB of space (less 2 from filesystem).
Is that enough space? Any way to fix it Without changing the
partitions? I dont use LVM :/
Thank you for help!
Re: [gentoo-user] Making XEN functional
Solved the lack of space. I modified my partitions. and xen is back again :) Now I'm going to reboot with xen, start the services and try with xl. Thank you for help. I will keep in contact
Re: [gentoo-user] Making XEN functional
It works! :) Thank you for you help! Now I just need to install my hosts jeje. I'll try XEN, if I see performance is not good, I will change to VirtualBox as you suggested. Thanks again! :)
