October 23rd, 2008
For the last few days I was digging into a project to make OpenVZ running on this Overo thing. That involved patching OpenVZ kernel to support ARM architecture, building vzctl package (.ipk) for ARM using bitbake, and creating a template.
It was amazingly easy to port the OpenVZ kernel to ARM; you can see here that besides a big-all-in-one-openvz-for-2.6.27 patch I only had to add 4 tiny ARM-specific patches (1, 2, 3, 4). For vzctl, it was even easier -- all I had to do is to add openvz syscall numbers for ARM which were added, and create a bitbake recipe file.
Creating a template for ARM architecture was tougher but I managed to win that fight, too -- you can find a Debian Lenny template here.
Here is an except from a terminal session showing OpenVZ on Overo:( a copy/paste from terminalCollapse )
Please note that all this is still in very alpha stage -- there are errors, bugs, ugly warnings, you have to modify some things in place etc. But it's working. If someone is interested in running OpenVZ on ARM hardware, please let me know -- leave a comment here or email kir (A) openvz (.) org.
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