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1Repair Windows errors before they cause bigger problems2Scan for outdated or missing drivers - takes under a minute3Clear out junk files and repair common Windows errorsTo make a newly attached VPS disk usable and keep it mounted after reboot, identify the correct device, create a filesystem only if needed, mount it at a directory, then add its filesystem UUID to /etc/fstab and test the entry with mount -a. Device names and provider steps vary, so verify the disk on your own server rather than assuming it is /dev/sdb.
Before you start: attach and identify the disk
First attach the volume through your VPS provider’s control panel or CLI, following that provider’s current instructions. There is no universal attachment command: the required steps depend on the provider and host configuration.
After attachment, inspect the Linux device tree and filesystem identifiers:
lsblk -o NAME,SIZE,TYPE,FSTYPE,LABEL,UUID,MOUNTPOINTS
sudo blkidCompare the candidate disk’s size, device relationships, existing filesystem, UUID and mount points. Confirm it is not the boot or root device, swap, an existing data volume, or otherwise in use. Do not select a target based on a device name alone. If the volume was just attached and does not appear, device discovery information may not have refreshed yet; follow the appropriate instructions for your distribution and provider.
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The lsblk default output can vary, so specifying columns makes the information easier to interpret. Its documentation also notes that udev information may lag recent device changes; consult the lsblk manual.
Choose the disk layout and filesystem
Whole disk or partition
You can put a filesystem directly on a block device or create a partition and put the filesystem on that partition. A partitioned disk is useful when the intended layout requires a partition table or multiple partitions; a simple data volume may use either layout. Provider or organizational policy, the existing layout and future use should guide the choice. Inspect the parent-and-child relationships shown by lsblk before deciding which device to format.
The mkfs manual describes a partition as the usual target while allowing a block device. Use the actual device or partition confirmed on your host, not a guessed name.
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Filesystem choice
For a straightforward Linux-only data volume, ext4 is a reasonable general-purpose choice if the provider and workload do not require something else. It is not universally best: consider provider support, workload, existing filesystem, administrative and recovery needs, and whether another operating system must access the volume. The ext4 manual describes ext4’s general-purpose design.
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Create a filesystem only if the target needs one
Formatting writes a filesystem to the selected device or partition and can destroy existing data. Stop if the target contains anything you need to retain. Confirm the target again immediately before running the command.
If you confirmed that a newly created partition is the intended target and want ext4, use this command form, replacing the placeholder with the verified partition name:
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sudo mkfs.ext4 /dev/CONFIRMED_PARTITIONIf your inspected layout deliberately uses the whole disk, substitute that confirmed device instead. Match the target to the layout: do not format a child partition when you intend to use the whole disk, or format the parent disk when you intend to use a partition. Prefer a filesystem-specific utility such as mkfs.ext4 to the generic mkfs frontend; see the mkfs manual and mke2fs manual.
Mount the filesystem for immediate use
Create the directory where the filesystem should appear, then mount the confirmed device there. The following example uses /mnt/data; choose a path that suits your system and applications.
sudo mkdir -p /mnt/data
sudo mount /dev/CONFIRMED_DEVICE /mnt/data
findmnt /mnt/dataReplace /dev/CONFIRMED_DEVICE with the device or partition that contains the filesystem. Check that findmnt shows the intended source at the intended path, then check available space before directing applications to it. Linux presents mounted filesystems within one directory tree; mounting over a directory changes what you see there while the filesystem is mounted. Plan the mount point with any files already in that directory in mind. The mount manual documents attaching and detaching filesystems.
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Make the mount persist after reboot
A manual mount command does not by itself configure a boot-time mount. Add the new filesystem to /etc/fstab, using its UUID or label rather than relying on a kernel device name such as /dev/sdb1, which can change as devices are added or removed.
Find the filesystem UUID after formatting:
lsblk -f
sudo blkidConfirm that the UUID belongs to the new filesystem. Then back up /etc/fstab, preserve its existing entries, and add an entry in this illustrative form:
UUID=REPLACE_WITH_REAL_UUID /mnt/data ext4 defaults 0 2Replace the UUID with the real value, and adjust the mount point, filesystem type and options to match your setup. This example is not a universal option set. The six fields are source, target, type, options, dump and pass. The fstab manual recommends UUID or LABEL tags because device names may change. If filesystems have been cloned or copied, check that the UUID is unique before using it. Red Hat’s RHEL 10 persistent-mount documentation also describes UUID-based entries.
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Test the configuration before rebooting:
sudo mount -a
findmnt /mnt/data
lsblk -fIf mount -a reports an error, correct the entry and test again before rebooting. Do not delete or replace existing entries as a shortcut. Boot handling and mount options can depend on the distribution, installed systemd and util-linux versions, and whether a device is always present. For special devices or network-backed volumes, check the host’s documentation and your provider’s instructions.
Common mistakes and fixes
- The wrong disk is selected. Recheck size, mount points and device relationships in
lsblk, and confirm the root, boot and swap devices before formatting. Never assume a name such as/dev/sdbidentifies the new volume. - The wrong level of the layout is formatted. Inspect
TYPEand parent-and-child relationships. Use the whole device or partition that matches the layout you chose. - Existing data would be erased. Do not run
mkfsuntil you have verified the target and accounted for its contents. If you need the data, stop and determine the correct preservation or migration procedure. - The disk does not appear after attachment. Check the provider’s attachment status and follow its device-discovery guidance; recently changed device information may not yet be reflected by udev.
- The mount disappears after reboot. A one-time mount is not persistent. Check that the correct UUID, path and filesystem type are in
/etc/fstab, then test withsudo mount -a. - An invalid fstab entry disrupts startup. Validate before rebooting. For a device that may not always be available, verify suitable options for your distribution and provider rather than copying a generic example unchanged.
- Files seem to vanish from the mount-point directory. A mounted filesystem overlays the directory view. Check the mount state and inspect the underlying directory only when the filesystem is safely unmounted.
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