# Quick Fixes - Blog - Johannes Olzem
Johannes Olzem's Webspace.

## Quick Fixes

This is a page with small problems, to which I have found easy solutions, so as to not litter the blog page.

- Problem: Nextcloud File not supported Error (`exif_read_data(): File not supported at /var/www/html/lib/private/Metadata/Provider/ExifProvider.php#59`).
  Solution: Upload over IP and port rather than over nginx.
  Explanation: Nginx 413 Error - Request entity too large
- Problem: `Connected without internet` on Android after setting PiHole as DNS Server.
  Solution: Make sure you forward both TCP and UDP of Port 53 from your Docker Container.
- Problem: ThinkPad R61 (or any older ThinkPad model, I believe) repeated beep at startup.
  Solution: Check keyboard connector / swap out keyboard.
  Explanation: No keyboard detected on bootup.
- Problem: Pacman install fails with 404 (`error: failed retrieving file 'X' from Y : The requested URL returned error: 404`).
  Solution: Replace `/etc/pacman.d/mirrorlist` with a new file generated at https://archlinux.org/mirrorlist/.
  Then run `sudo pacman -Syyu` to update with the new mirrorlist. Make sure to use 2 y's, to force the new changes.
  Explanation: Your mirrorlist is outdated, possibly due to the recent pacman git migration.