| Kernel panic when booting with Ubuntu OpenVZ kernel [message #51734] |
Sat, 01 November 2014 00:40  |
opzfusr
Messages: 1
Registered: November 2014
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Junior Member |
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Hello,
I want to use OpenVZ on my Ubuntu 14.04 Trusty platform. I installed the RHEL6 2.6.32 kernel (vzkernel_2.6.32-042stab093.5_amd64 kernel) following the instructions given in
www.howtoforge.com/installing-and-using-openvz-on-ubuntu-13. 04-amd64
When the machine is booted with the vzkernel_2.6.32, I get the following error:
"Kernel panic - not sysncing: Fatal exception"
and the boot freezes. However, I can interrupt the booting and reboot with the original Ubuntu kernel and the machine boots fine.
Please see the attached screen shots (Sorry, I cannot make the URL clickable as this is my first post).
imgur.com/7Veclg7
imgur.com/5VjBZUj
Hardware: Dell PowerEdge T105 (quad core cpu, 8 GB RAM)
OS: Ubuntu 14:04 (Trusty) 64-bit
uname -r: 3.13.0-39-generic
I have installed the following components for the OpenVZ:
ploop-1.12.1-1.x86_64.rpm
vzctl-core-4.8-1.x86_64.rpm
ploop-lib-1.12.1-1.x86_64.rpm
vzkernel-2.6.32-042stab093.5.x86_64.rpm
vzctl-4.8-1.x86_64.rpm
vzquota-3.1-1.x86_64.rpm
I used the following steps for the installation:
$ sudo dpkg -i vz*.deb ploop*.deb
$ sudo vim /etc/default/grub
$ sudo update-grub
$ sudo update-rc.d vz defaults
$ sudo update-rc.d vzeventd defaults
$ sudo ln -s /usr/lib64/libvzctl-4.8.so /usr/lib
$ sudo ln -s /usr/lib64/libploop.so.1.12.1 /usr/lib
$ sudo vi /etc/init.d/vz
Added the following:
$ sudo vi /etc/sysctl.conf
[...]
net.ipv4.conf.all.rp_filter=1
net.ipv4.icmp_echo_ignore_broadcasts=1
net.ipv4.conf.default.forwarding=1
net.ipv4.conf.default.proxy_arp = 0
net.ipv4.ip_forward=1
kernel.sysrq = 1
net.ipv4.conf.default.send_redirects = 1
net.ipv4.conf.all.send_redirects = 0
net.ipv4.conf.eth0.proxy_arp=1
[...]
$ sudo sysctl -p
$ sudo apt-get install vzdump
Any help in fixing this is greatly appreciated.
Thanks
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| Re: Kernel panic when booting with Ubuntu OpenVZ kernel [message #51749 is a reply to message #51748] |
Fri, 07 November 2014 02:38  |
mmcfarland
Messages: 9
Registered: November 2014
Location: Cincinnati
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Junior Member |
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I apologize for coming off brash. However, I still believe without a shadow of a doubt that openvz does not (and should not) support linux operating systems that run on a later kernel version.
Looking at Ubuntu releases -en.wikipedia.org/wiki/List_of_Ubuntu_releases - it appears the Ubuntu 14 runs off of kernel 3.5 - that does mean that apt-get package manager is assuming you are running kernel 3.5, in fact any processes or services running under ubuntu 14 are assuming kernel 3.5 - which has a different architecture than 2.6.
openvz is assuming kernel 2.6 - I don't think you have to be a senior consulting software engineer or lead technical system administrator to understand what I am saying. I never said openvz was terrible, I just said the kernel that it uses as its framework is old. To say that it is not old because RHEL 6.6 uses 2.6 is not relevant to the fact that many linux distros are running on a new kernel. Also you must take into account that as time goes on techniology 'upgrades' faster and faster.
If you look at linux 3.9 it already supports virtualization - so we could theoretically create a much more robust openvz that did not need to hack the kernel. this would be ideal I think.
Anyway, I tried to say it short, but hoping that my explanation above should more than prove that ubuntu 14 and openvz don't mix. I would stick to RHEL 6.6 or perhaps centos 6.4
Thanks
[Updated on: Fri, 07 November 2014 02:47] Report message to a moderator |
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