Introduce optional quiet mode (move technical output from console to /tmp/debug.log)#1863

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tlaurion wants to merge 11 commits intolinuxboot:masterfrom

tlaurion:introduce_quiet_mode

Commits on Dec 3, 2024

qemu-coreboot-fbwhiptail-tpm2-hotp-prod_quiet board: addition of board containing 'export CONFIG_QUIET_MODE=y' for output comparison between debug, prod and quiet mode
tlaurion
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initrd bin/* sbin/insmod + /etc/ash_functions: TPM extend operations now all passed to LOG (quiet mode doesn't show them and logs them to /tmp/debug.log)
tlaurion
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init: suppress /etc/config.user not existing on grep calls
tlaurion
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init: inform user that running in quiet mode, tell user that technical information can be seen running 'cat /tmp/debug.log' from Recovery Shell
tlaurion
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codebase: silence dd output while capturing output in variables when needed
tlaurion
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initrd/bin/tmpr: silence tpm reset console output, LOG instead
tlaurion
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initrd/etc/ash_functions: add GPG Admin/User PIN output grabbing on confirm_gpg_card presence call, echo for now, warn to input GPG User PIN when asked to unlock GPG card
tlaurion
committed