On Tuesday 30 January 2007 12:59 am, Moinak Ghosh wrote: > You are talking about UnionFS here. It should be a good project to > port the FreeBSD > version of UnionFS along with a set of external patches that fix > existing shortcomings.
I'm not sure, I don't know anything about UnionFS. I'll need to look into that. It seems more related to layering different devices, in the sense of memory, optical, disk, etc...I was thinking of just layering the changes to the root filesystem. So, let's say a person replaces sendmail, the system would store information so that at boot time, it will place a symlink that pointed to the new binary, which would get queried at boot time. At least this is how I was thinking about it. Before that point, to be able to store system configuration that would normally be stored in /etc/*.conf files (or similar) and store that into SMF, using the XML. So, I guess 2 different pieces, one that would layer the configuration changes to the root filesystem and store them into SMF. Then be able to layer any filesystem changes on top of that. In the middle is a read-only root filesystem, or at the bottom, depending on how you like to look at it.;-) Somehow I was thinking to use the ZFS ACL for this piece. -- Alan DuBoff - Solaris x86 Engineering - IHV/OEM Group Advocate of insourcing at Sun - hire people that care about our company!
