Red Hat Bugzilla – Bug 553877
LXC: No $TERM variable set for containers
Last modified: 2012-01-24 16:46:12 EST
Created attachment 382616 [details]
VM definition file
Description of problem:
In my LXC VM, vi doesn't update the display properly when I'm using virsh console.
Version-Release number of selected component (if applicable):
Always (though I only tried reproducing from step 8)
Steps to Reproduce:
1. ssh server
2. download Exherbo Linux distribution stage image from URL above
3. become root
4. mkdir exherbo;cd exherbo;tar xfJ ../exherbo-x86-20091215.tar.xz
5. download attached .xml file and adjust path according to where you untarred the .tar.xz file
6. virsh --connect lxc:/// define exherbo.xml
7. virsh --connect lxc:/// start exherbo
8. virsh --connect lxc:/// console exherbo
9. vi /etc/fstab
10. Press 'i' to enter insert mode (this is only way I know how to use vi, so that's what I did!)
11. Hit the cursor down key repeatedly until you start scrolling
Display not corrupted; normal scrolling
The TERM environment variable is unset inside the virsh console.
Also, the console doesn't get redisplayed when you connect to it via virsh console.
Re the original bug, I can see that it's difficult to set the TERM correctly on startup since you don't know what TERM will be used in future, and it's impossible to set it when you run virsh console.
Maybe somehow integrating GNU screen (or a similar program) into the virsh console mechanism for LXC would address both of these problems?
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libvirt could probably set an initial TERM=vt100 env variable when creating the container. The container OS could then override this if desired.
Upstream includes TERM=linux in containers by default now:
This package has changed ownership in the Fedora Package Database. Reassigning to the new owner of this component.
F14 is EOL, please reopen if this is still relevant in a more recent fedora.