brew-perl-macos.md

Replace MacOS perl with the latest brew version

Also fix error perl version 5.32.0 can't run /usr/bin/_shasum. for brew

/usr/bin/perl with /usr/local/bin/perl

MacOS 11.x Bug Sure

Warning, not particularly recommended

Disable System Integrity Protection:

• Disable FileValt
• reboot into Recovery Mode
  • hold: Command-R -> Recovery Mode.
• Utilities -> Terminal
• csrutil authenticated-root disable
• reboot

Normal Login:

mkdir ~/root_mount
sudo mount -o nobrowse -t apfs /dev/disk1s1 ~/root_mount
cd ~/root_mount/usr/bin
sudo mv perl perl.ori.5.28
sudo mv shasum shasum.ori
sudo ln -s /usr/local/bin/shasum .
sudoln -s /usr/local/bin/perl .
sudo bless --folder ~/root_mount/System/Library/CoreServices --bootefi --create-snapshot
sudo umount root_mount
sudo reboot

Reset System Integrity Protection

FAILED :(

MacOS 10. Catalina

Disable System Integrity Protection:

• reboot
• hold: Command-R -> Recovery Mode.
• Utilities -> Terminal
• csrutil disable
• reboot

Normal Login:

• login
• open Terminal
• sudo mount -uw /
• sudo mv /usr/bin/perl /usr/bin/perl.ori.5.28
• sudo ln -s /usr/local/bin/perl /usr/bin/perl
• sudo mv /usr/bin/shasum /usr/bin/shasum.ori
• sudo ln -s /usr/local/bin/shasum /usr/bin/shasum

Reset System Integrity Protection

• Reboot in Rescue (1.)
• csrutil status
• csrutil enable
• reboot