How can I get past a “Repository is not signed…” message when attempting to upgrade Kali Linux from a mounted disk image?

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Music by Eric Matyas
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Track title: Puzzle Game 2

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Chapters
00:00 Question
00:51 Accepted answer (Score 74)
01:47 Answer 2 (Score 23)
02:01 Answer 3 (Score 3)
02:30 Thank you

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Full question
https://superuser.com/questions/1331936/...

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Tags
#kalilinux #apt

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