A bit of a YSK for noobs (like me).
I was setting up the RG35XX-SP with Knulli last night. They have an excellent little tool in the menus for checking for any missing bios files for the emulators. A few of the files I couldn't find anywhere, but I had similar (but not exactly) named files. For example, a DS emulation bios I was missing was dsi_bios7.bin but I had biosdsi7.bin.
Amazingly, the (I guess Batocera) developers include an 'MD5' hash of the required files in the message with each file name, so I was able to confirm these are actually the same files. eg for the file dsi_bios7.bin the MD5 was given as 559dae4ea78eb9d67702c56c1d791e81.
If you're not a software developer, you might not be familiar with hashes. They are basically a big number computed from every byte in a file such that if two files have the same hash, for practical purposes, the files are exactly the same.
To find the MD5 of a file in mac or Linux you just type md5 <filename> in the terminal (ed: md5sum <filename> on Linux - thanks @DABDA@lemm.ee ), or for little files like these, just drop them in an online MD5 calculator.
6 Comments
lath@lemmy.world · 16 pts · 1y
A real noob would have assumed those files were the same and renamed them from the start.
Only a newbie with the desire to do things right would bother to check.
DABDA@lemm.ee · 5 pts · 1y
Not sure if it's different on Mac or other distros, but for me on Linux Mint it's actually
md5sum <filename>. Surprisingly, that wasn't a listed suggestion when tryingmd5 --help- just offers 'mdp, mda, cd5, mdu' to install with apt.thirdBreakfast@lemmy.world · 2 pts · 1y
My bad - thanks for the correction!
stoy@lemmy.zip · 3 pts · 1y
looks at screenshot
Wait, we need BIOS files for GB and GBC?
When did that happen?
RegalPotoo@lemmy.world · 2 pts · 1y
Iirc it's only used for showing the logo on boot
sic_semper_tyrannis@lemmy.today · 2 pts · 1y
Great information to share. Great link too that works for all types of hashes, not just MD5.