From mboxrd@z Thu Jan 1 00:00:00 1970 From: Hadmut Danisch Subject: Setting options permanently? Date: Fri, 27 Jan 2012 16:03:40 +0100 Message-ID: <4F22BCCC.5090800@danisch.de> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-15 To: linux-btrfs@vger.kernel.org Return-path: List-ID: Hi, just a question: Mounting options for file systems are usually given on the command line or in /etc/fstab. Both do not work with mobile storage devices like usb hard disks, since they are either mounted automatically through the desktop, or manually by a user who does not know or remember the mount options for this file system. At least it's error prone. What happens if a btrfs is mounted sometimes with and sometimes without the compression option? I'd guess it generates a mixture of compressed and uncompressed files, what is not exactly smart. Is there a way to set options like compression on a btrfs permanently to activate them even when mounted automatically by the desktop or manually by a third person? regards Hadmut