Article 5PC4Q Linux failing to update from Debian 9 (stretch) to Debian 10 (Buster) & failure to install Steam for chrome OS

Linux failing to update from Debian 9 (stretch) to Debian 10 (Buster) & failure to install Steam for chrome OS

by
G@yboyblue
from LinuxQuestions.org on (#5PC4Q)
Hi All,

I am as green as the pastures when it comes to linux, coding and tech to the point where i do not understand what is happening or wrong. I've been attempting to make it possible for my Lenovo e500 Chrome Book (3-4 years old) to run steam through chrome OS. Quick googling took me to try and use linux but I keep running into an issue whenever i try to upgrade it.My understanding in the long message about it (before it restores certain packages? to run linux as v9) is that there's several issues I keep running into to do with public keys:

W: Failed to fetch http://httpredir.debian.org/debian/d...ie/Release.gpg The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 7638D0442B90D010 NO_PUBKEY CBF8D6FD518E17E1
W: Some index files failed to download. They have been ignored, or old ones used instead.

assuming that issue gets fixed then i should be able to install steam?latest?d=yIl2AUoC8zA latest?i=RXiKsmQPJZs:BUOqvrjPvFA:F7zBnMy latest?i=RXiKsmQPJZs:BUOqvrjPvFA:V_sGLiP latest?d=qj6IDK7rITs latest?i=RXiKsmQPJZs:BUOqvrjPvFA:gIN9vFwRXiKsmQPJZs
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