stonebear, on 13 January 2012 - 12:12 PM, said:
One thing I am unsure of is ext3 or ext4 builds?
My only experience of ext is using an ext2 partition on the sd card and using link2sd to move the apps there. But there were no specific ext builds for the Acer so I don't understand what the ext builds are.
Cm is ext4 and stock is ext3.
Ext3 is (or has been for a long time) the default Linux filesystem, just like Fat in Dos/Windows.
Ext4 is a bit newer, comparable to NTFS.
The kernels included in stock firmware, don't have drivers for Ext4.
Clockwordmod does have drivers for both ext3 and ext4.
When you install CM or other ext4 based rom, it converts your ext3 filesystem on first boot.
Since CWM has drivers for both fileystem, you can flash an ext3-only rom on an ext4 filesystem just fine.
However, it won't boot since the rom will be unable to mount it's own filesystem.
Since wipes are only wipes (del *.*), you need to format the system and data partitions back to ext3 before installing a rom that has only ext3 drivers included.
I hope this clears things up.