ssh Long time to return prompt. Post: 302329586

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LEARN ABOUT MOJAVE

eficheck

EFICHECK(8)						    BSD System Manager's Manual 					       EFICHECK(8)

NAME

     eficheck -- check the integrity of the x86 flash chip firmware.

SYNOPSIS

     eficheck --integrity-check [-h EFI-hash-input-file] [-b EFI-binary-input-file]
     eficheck --show-hashes [-h EFI-hash-input-file] [-b EFI-binary-input-file]
     eficheck --generate-hashes [-h EFI-hash-output-file] [-p output-path]
     eficheck --save [-b EFI-binary-output-file]
     eficheck --cleanup [-b EFI-binary-input-and-output-file>]
     eficheck --version
     eficheck --help

DESCRIPTION

     eficheck is a tool to check the x86 flash chip firmware.

     The following commands can be used with eficheck:

     --integrity-check hashes portion of the firmware and compares against known-good hashes

     --generate-hashes outputs hashes for a given firmware to be used as known-good hashes

     --show-hashes shows the hashes for the sub-sections of the firmware which are measured

     --save saves the full flash chip contents to a binary file. Requires root privileges.

     --cleanup zeros any privacy-sensitive data (such as nvram), enabling the file to be shared for analysis.

     --version print out eficheck version number.

     --help display a short help.

EXAMPLES

	    'eficheck --save -b firmware.bin'

		Save this system's EFI firmware as firmware.bin

	    'eficheck --cleanup -b firmware.bin'

		Overwrite the EFI variables portion of the firmware.bin, in place

	    'eficheck --generate-hashes'

		Analyze the current system's installed EFI firmware, and store the hashes into hash file(s) in current folder

		File name(s) will be selected according to image's EFI version(s)

	    'eficheck --generate-hashes -b firmware.bin'

		Analyze the firmware.bin, and store the hashes into hash file(s) in current folder. Filename will be based on the detected
     firmware version.

	    'eficheck --generate-hashes -p /usr/local/allowlists'

		Analyze the current system's installed EFI firmware, and store the hashes into hash file(s) in /usr/local/allowlists folder

	    'eficheck --integrity-check'

		Attempt to automatically determine which firmware you are running, and integrity check against the appropriate file, and report
     any differences

	    'eficheck --integrity-check -h /usr/libexec/firmwarecheckers/eficheck/EFIAllowListShipping.bun-
     dle/allowlists/IM171.88Z.0105.B08.1604111319.0.ealf'

		Compare the current system's EFI firmware against the Apple-provided expected measurements for an "iMac17,1" at firmware revision
     B08, and report any differences

	    'eficheck --integrity-check -h hash.ealf -b firmware.bin'

		Compare the given hash file against against the given firmware image and report any differences

	    'eficheck --show-hashes'

		Print the hashes for the current system's installed EFI firmware to stdout

	    'eficheck --show-hashes -b firmware.bin'

		Print the hashes for the given firmware.bin to stdout

	    'eficheck --show-hashes -h IM171.88Z.0105.B08.1604111319.0.ealf'

		Print the hashes for the given allowlist to stdout

								   May 25, 2017

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Carriage return on long awk operation

Discussion started by: umen

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date and time on every time pressing return key

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How would you return how long a script runs for?

Discussion started by: Jazmania

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Argument list too long - SSH

Discussion started by: empyrean