Ronnie brought up an interesting point about the problems consistently configuring file systems (or any Linux module for that matter) so that reboot doesn't wipe away security or performance tuning changes. Linux file systems typically allow configuration via various ways (I may have left some out) for example: - module load parameters (modprobe etc. e.g. for cachefs "deferecreate" or "deferlookup" can be configured, as can various parms in the nfs or cifs/smb3 modules) - Settings via /proc/fs/ or /sys/fs (e.g. /sys/fs/ext4/features) - Settings via mount parms Other than /etc/fstab which is fairly limited, AFAIK the only file system that has persistent configuration in text files is nfs - which allows a limited number of mount related settings to be set to defaults via nfsmount.conf Are there good examples of either text based configuration of Linux kernel (preferably file system drivers) e.g. something vaguely like /etc/btrfs or an /etc/xfs to set default security or performance related parameters consistently over reboot of machine, or even better something vaguely like Samba's "net conf" tools for setting keyword=value for various types of settings in a somewhat safer way (in a registry, which in Samba's case is cluster safe, and fairly robust) What is the recommended way to persist configuration settings for Linux drivers across reboot? -- Thanks, Steve
