Originally Posted by deeneyc09
Ah I must be confused with the partitioning then.
/dev/sda5 is considered a subdirectory because it's an extended partition, not a primary?
No. You should be able to make a unique quota set for sda5.
I reread your original post. I had thought that you wanted to make quotas for subdirectories within a partition. I don't know why I got that impression.
Did you mount sda5 with quotas enabled in fstab as that web page specified in section 8.1.1? If you did then did you also implement the following steps on that page?