[O/S] apt update after fresh install

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apt update

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Ign:1 cdrom://[Debian GNU/Linux 12.8.0 _Bookworm_ - Official amd64 NETINST with firmware 20241109-11:04] bookworm InReleaseErr:2 cdrom://[Debian GNU/Linux 12.8.0 _Bookworm_ - Official amd64 NETINST with firmware 20241109-11:04] bookworm ReleasePlease use apt-cdrom to make this CD-ROM recognized by APT. apt-get update can not be used to add new CD-ROMs

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Ign 

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Err

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Reading package lists... DoneE: The repository 'cdrom://[Debian GNU/Linux 12.8.0 _Bookworm_ - Official amd64NETINST with firmware 20241109-11:04] bookworm Release' does not have a Release file.N: Updating from such a repository can't be done securely, and is therefore disabled by default.N: See apt-secure(8) manpage for repository creation and user configuration details.

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E

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N

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E: The repository 'cdrom://[Debian GNU/Linux 12.8.0 _Bookworm_ - Official amd64NETINST with firmware 20241109-11:04] bookworm Release' does not have a Release file.

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N: Updating from such a repository can't be done securely, and is therefore disabled by default.N: See apt-secure(8) manpage for repository creation and user configuration details.

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root@hostibu:~# man-bash: man: command not foundroot@hostibu:~# whatis-bash: whatis: command not foundroot@hostibu:~# apropos-bash: apropos: command not foundroot@hostibu:~# cd /usr/share/manroot@hostibu:/usr/share/man# lscs  de  fi  hu  it  ko    man2  man4  man6  man8  pl  pt_BR  sl  tr  zh_CNda  es  fr  id  ja  man1  man3  man5  man7  nl    pt  ru     sv  uk  zh_TW