/usr/bin "Operation not permitted" in Mac OS X 11

After updating Mac OS X 11, it was found that itMacVimwas no longer possible to open the command with terminal.

mvim hello.txt

Then try to copy the Mvim back into the/usr/bin/.

sudo cp -f mvim /usr/bin/

However, a permissions issue has occurred:

cp: /usr/bin/mvim: Operation not permitted

After the search found, isEl CapitanjoinedRootless机制, no longer able to read and write a lot of paths. It is not possible to set root permissions.

The rootless mechanism will be the last line of defense against malicious programs

Then try to close the rootless. Restart Press and hold COMMAND+R, enter recovery mode, open terminal.

disable

Reboot. If you want to restore the default, then

enable

Appendix:

Csrutil Command parameter format:

Csrutil enable [--without kext | fs | debug | dtrace | nvram][--no-internal]

Disable:csrutil disable

(equivalent to csrutil enable--without kext--without FS--without debug--without dtrace--without nvram)

/usr/bin "Operation not permitted" in Mac OS X 11