This was like buying a Porsche when you don't know how to drive. I want to start over but afraid to format the darn thing. Getting filled with garbage because I possibly have the wrong mobo. Three hard shutdowns with no fsck because I don't know what options are safe to use on an SSD. Īfraid this SSD will meet a bad end in my hands. It is supposedly a fallacy that you need AHCI for trim as it is a function of the device and the OS. I find the garbage is still located there even after removing the file (and used sync) and now have to wonder if indeed it is because this mobo does not support AHCI.
#Fstab defaults update#
UPDATE Interesting discussion aside, testing out options and their placement in fstab (with an amusing aside into using "user" on my / drive doh) I have found it doesn't make any difference where I place things.Īdditionally, trim is not working. Where is that being made the default, kernel level? For instance, they are saying that in the latest linux systems, "noatime" is the default. I am wondering where the real default values are coming from. What you are saying here now, is "defaults" is just a placeholder. Hmm, see that did originally make sense to me because in my soon-to-be-former line of work as an e-learn developer, in our dev tools you can put in multiple actions for an object that may seem contradictory but they are read in order so the end result is what you want. It seems that even when "defaults" isn't just used as a placeholder, it isn't a real option either. But after a reboot /etc/mtab still reports the partition as read-only. So "defaults" comes after "ro" and should override it.
You can learn how to create LVM volume and mount it using fstab here.Code: LABEL=Data /home/erik/Data1 ext4 ro,defaults 1 2 If value is set to 0 means no scanning will be done at the time of startup. 1 and the rest of the partitions are assigned second priority i.e. The / partition is assigned top priority i.e.
This column defines the order in which the system should scan the partitions on start up. This option is for taking the backup of the filesystem while booting. These binaries are temporarily made available to them to perform certain tasksġ6) nosuid - Do not allow set-user-identifierġ7) defaults - auto, rw, dev, async, suid, exec & nouser
#Fstab defaults driver#
1) ro - Read Onlyĥ) user - Any user can mount, but only unmount device mounted by himĦ) nouser - Only root can mount & unmount the deviceħ) users - Every user can mount and also unmount the device mounted by othersĩ) dev - User can use device driver to mount the deviceġ0) nodev - User cannot use device driver to mount the deviceġ1) exec - Users can execute binaries on the partitionġ2) noexec - Users cannot execute binaries on the partitionġ3) async - Asynchronous, whenever a file is saved it will be first saved in the RAM and after 30 seconds all the queued files will be written on the hard disk.ġ4) sync - Synchronous, whenever a file is saved it will be directly written to the hard diskġ5) suid - Allow set-user-identifier for the device where users are allowed to run binaries even though they do not have execute permissions. The fourth column defines the permissions for the file system.īelow are the different permissions you can give depending on your requirement. This column describes the filesystem type. For swap partitions, this field should be specified as `none’. The second column describes the mount point location where it should get mounted. The first column contains the file system which is to be mounted on the Linux system. Let’s discuss these six columns one by one. # See man pages fstab(5), findfs(8), mount(8) and/or blkid(8) for more info # Accessible filesystems, by reference, are maintained under '/dev/disk' # Created by anaconda on Tue May 26 13:10:05 2015 It contains six columns ~]# cat /etc/fstab
This Linux fstab file contains information regarding all the file system & defines the location “mount point location” it should get mounted along with different options. In Linux fstab stands for “File System Table”. Linux FSTAB is important file which resides in the /etc directory on Linux.
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