修改 /etc/fstab

/dev/sda3       /home             ext4    defaults,usrjquota=aquota.user,grpjquota=aquota.group,jqfmt=vfsv0 0       1

如果以前就用了 quota 那就先quota off 才能   remount 分割區

 quotaoff -avug 

 touch /aquota.user /aquota.group

chmod 600 /aquota.*

mount -o remount /home

quotacheck -avugm

quotaon -avug