Missing file
<!--Please read our Bug reporting guidelines before opening a bug:
https://wiki.archlinux.org/title/Bug_reporting_guidelines
If you want to help catching more bugs upfront, consider joining the Arch Testing Team:
https://wiki.archlinux.org/title/Arch_Testing_Team-->
# Description:
After installation of moosefs package, the file `/var/lib/mfs/metadata.mfs.empty` is missing. The service `moosefs-master.service` will fail to start saying:
```
Apr 25 13:38:37 kvm06 mfsmaster[9341]: [info] loading metadata ...
Apr 25 13:38:37 kvm06 mfsmaster[9341]: [error] can't find metadata.mfs - try using option '-a'
```
This tells us to use the `-a` parameter.
When the command `mfsmaster -c /etc/mfs/mfsmaster.cfg -a` is ran it will look for the missing file to create a new, empty `/var/lib/mfs/metadata.mfs` file.
To manually create the template file:\
`echo -n 'MFSM NEW' > /var/lib/mfs/metadata.mfs.empty`
After this, running `mfsmaster -c /etc/mfs/mfsmaster.cfg -a` no longer fails and succesfully creates `/var/lib/mfs/metadata.mfs`.
Use `pgrep -f "mfsmaster -c /etc/mfs/mfsmaster.cfg -a` and kill the process, then we can start the service `moosefs-master.service` succesfully.
# Additional info:
* package version(s): moosefs 4.57.6-1
* link to upstream bug report, if any: https://github.com/moosefs/moosefs/discussions/659
# Steps to reproduce:
<!--Describe how to reproduce the bug step by step including the commands-->
1. sudo pacman -S moosefs
2. ls -al /var/lib/mfs/ #observe the file is missing
3. systemctl start moosefs-master.service
4. journalctl -u moosefs-master.service
issue