yum expected to work in rescue mode on install DVD?

[Greg Woods]

On Tue, 2013-07-30 at 16:33 -0500, Richard Shaw wrote:
> After a failed fedup upgrade from F18 to 19 I was left with a broken
> system...
> 
> 
> No problem, I figured, I would just boot a F19 install DVD and go into
> rescue mode and fix things using "yum --installroot=..."
> 
> 
> After booting into rescue mode I tried running yum, and the program
> seems to be there, but it complained about not being able to import
> the yummain module.

I have been in this situation. I had to set the PYTHONPATH environment
variable in order for yum to find the modules it needs. Something like:

# export PYTHONPATH=/mnt/sysimage/usr/share/yum-cli
# yum --installroot=/mnt/sysimage .....

--Greg