adding system snapshots to ubuntu standard install

[nijhawank]

Thanks for your suggestions but this is not what I'm trying to do.



I'm trying to freeze my entire system image. Assume something like
this:



1. System is installed on /dev/hda1 (there are no seperate partitions
for /home or /var or something like that)



2. When I use my system, /dev/hda1 is mounted in only readonly mode.
Not just at the startup but all the time.



3. So you must be wondering how the system is usable with nowhere to
write. I am recording all the changes to /dev/hda2 (an extra ext3
partition). Assume something like /dev/hda2 is a window to /dev/hda1.
You can see all the files of /dev/hda1 through /dev/hda2 but any
changes to those are contained in /dev/hda2.



I do this using unionfs as described in my previous post. Unionfs is a
kernel level filesystem that uses copy-on-write mechanism to combine
two or more filesystems to appear as one.



My problem is not that it's not working. It is definetly working but
I'm getting some error messages as described above which irritates me.




Thanks,

- Kamal N


-- 
nijhawank