I have a following in fstab, doesn’t automatically mount on boot
UUID =f84bedd5-cc30-410d-940b-32aa5ff5f485
/run/media/spaceboy/home_backup exfat
defaults,rw,uid=1000,gid=1000,umask=0002 0 0
Suggestions?
you need to add “auto” and “nofail” to your options
The UUID is too long for a FAT file system.
Check what lsblk -f shows as the GUID.
i expect it to be 1234-5678 in format.
Also I see vfat used as the type for to mount /boot/efi for example.
It looks like that this is a backup from your home you had auto mounted when installing fedora ?!
If this is an external drive do not mount over the automount link. Create a new one based on what
said and include the parameters @cirrus mentioned. If the drive is not connected the boot process will not wait for ever and the boot process is faster.
It is exfat, must be an over left from a Window to Linux Migration (home drive).
I do not see exfat documented in man mount or listed in /proc/filesystem.
However vfat is documented to support the extended FAT filesystem specifically to allow long filesnames.
grep -i fat /proc/filesystems
vfat
grep fat /proc/filesystems
vfat
exfat
These are not exactly the same type. You may need to run sudo modprobe exfat for the exfat type to show up.
What is your suggestion for the OP? a.) Bring the data to a vfat partition and declare it in fstab as it or b.) just declare the exfat as vfat in the fstab and it is good to go? I do have a knot in my knowledge timeline, and try to undo it from the Linux point of view 
If a. is what you try to propose, then lets ask the OP if they want to leave the Windows Train and jump on Linux. This means no need to access over Windows anymore. Then OP please use ext4 or btrfs partition to move your data too, right? And declare it as it, in fstab.
My point I try to explain is, when mounting a home/backup over a auto-mount, better use a separate mount over /dev/sd? whatever and declare it as /home/username/backup so that it appears there. Depending on the question of a & b executing the necessary actions to achieve the desired change.
p.s.
exfat soved from ms point of view the 8.3 point file name problem. It is not 32bit anymore, it just not supports journaling.
PCWorld Article about exfat; doesn’t have any journaling functionality
exFAT: This is an updated file system created by Microsoft to replace FAT32. It debuted in Windows Vista SP1, it has a maximum file size of 16 exabytes (EB) (it’s going to take us a while to hit that), and it’s compatible with both Mac and PC. Though it’s a proprietary Microsoft technology, Apple licensed it for use in its OSes so you’ll see it as an option when formatting a drive in OS X. For swapping or sharing large files, especially between OSes, exFAT is the way to go.
One downside to exFAT is that it doesn’t have any journaling functionality, which is a system whereby any changes to the files on the disk are noted in a log before they’re actually performed. This helps data integrity by recording the changes to files before they take place. The only other downside to exFAT is it’s not supported by Apple’s Time Machine software.
Source: Why your USB drive's file format matters: FAT32 vs. exFAT vs. NTFS | PCWorld
My bad, it’s actually ext4 formatted. So far I have:
UUID =f84bedd5-cc30-410d-940b-32aa5ff5f485 /run/media/spaceboy/home_backup ext4 defaults 1 2
What do i need to add to get it to auto mount?
Please scroll up and see the comment from the other participants, and confirm them with man fstab. You can also open the /etc/fstab to see what fedora used for the other disks/partitions.
This would have at least saved for me a lot of time, if you would have told this before. But nobody is perfect … including me 