![]() ![]() It contains critical configuration details, so wrong entries may cause unwanted results.Edit is a variant of the text editor ex. Editing fstab fileīefore editing the fstab file, it’s always recommended to have a backup.īefore making any changes to the fstab file, it’s recommended to make a backup first. The value assigned in this column determines in which order fsck will check the listed filesystems. For backup, it’s more convenient to use various third-party tools. If the value is 0, then the dump will ignore the filesystem. It describes whether the filesystem is to be backed up. rw: It describes that the partition is available for reading and writing data.ro: It describes that the partition is to be treated as read-only.If the value is “async,” then it’s done asynchronously. If the value is “sync,” then input and output are done synchronously. sync and async: It determines how the input and output to the device/partition will be performed.The default value is “exec” for all partitions. The value “exec” allows binary execution, whereas “noexec” does not. exec and noexec: It describes whether binaries can be executed from the filesystem.By default, the value is “user.” For specific and critical filesystems, “nouser” can be helpful. If the value is “nouser,” then only the root can mount it. If the value is “user,” then normal users can mount the filesystem. user and nouser: It describes which user can mount the filesystem.However, in specific scenarios, the “noauto” option may be applicable. By default, the value is “auto,” meaning it’ll be mounted during boot. auto and noauto: This option determines if the system will mount the filesystem during boot.Here’s a shortlist of some of the common mount options you’ll come across when working with the fstab file. It’s considered the most confusing part of the fstab file. The mount options determine the mounting behavior of the device/partition. Use this option if you’re not confident about the specific filesystem. Here’s a shortlist of the popular filesystems.Īnother option is “auto,” which lets the system auto-detect the filesystem type of the device or partition. Linux supports several filesystems by default. There are numerous filesystems used widely. Filesystem typeĪ filesystem can be described as an index of the database with all the physical location of data on the storage. When the computer boots, the system will mount all the devices to the mount points described in this file. In the context of the fstab file, the mount point described for the specific device name will be used as the default mount point. ![]()
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