I raised this question in another thread before realising that the thread was in the 'fun' section. I would appreciate confirmation of the action I should take.
I want to retain my 2009 installation as a backup after installing 2010. I gather that 2010 will use ext 4 for all partitions. I would prefer not to format my /data and /home partitions and I want to be able to use those partitions for both 2009 and 2010. I was referred to an article about ext 4
I drew the conclusion that after installing 2010, I should log in as root, unmount /data and /home and run the two commands, tune2fs and fsck. For "/dev/yourfilesystem" I should substitute "/dev/sda1" [home] and "dev/sda7" [data]. I thought that, if I do that, those partitions could not be mounted by pclinuxos 2009 so, unless I see some benefit in converting the partitions to ext 4, I should leave them as ext 3, in which case they can be mounted by 2009 as well as 2010.
I think I may be wrong and that 2009 could mount the ext 4 partitions as well. What is the situation?