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Save all installed packages:
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sudo dpkg-query -f '${binary:Package}\n' -W > packages_list.txt

( Reinstall: dpkg -i *deb )
https://kopimi.space/@koyu/110878849059439919

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Fastboot on Ubuntu:
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https://c.realme.com/in/post-details/1244566811094024192

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(become root)
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sudo -i
https://askubuntu.com/questions/446570/why-does-su-fail-with-authentication-error
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