csrutil - command not found

Question

Apple recently replaced my internal 3TB Fusion drive (recall/replacement program) and I lost  my ability to enable csrutil in Terminal mode from the Recovery Partition now.I&#x27;m trying to do one simple little thing I&#x27;ve done in the past on this same computer/OS combo - replace the obnoxious "new" Volume.aiff sound in the System with the old one on the path seen in the pic.  There was never any need to change this, but some overpaid Gen Z tweaker got it pushed through.  But I digress.It&#x27;s possible to replace the file on the path seen on the attached screenshot - but first one must DISABLE SIP as otherwise we are now locked out of mucking around with System files.  Fair enough.  The great unwashed masses must be protected from themselves!Booting into internal Recovery Mode (Apple_Boot Recovery HD) and entering the command: csrutil disable - in Terminal should do it - reboot, replace the file with the correct sound (same name) - go back into Recovery and turn SIP back on entering the command: csrutil enable and restart to clean up with nary a trace.All great - BUT - Terminal in Recovery Mode reports that "csrutil" &#x3D; command not found.  csrutil enable - csrutil disable - nothing works at all.It&#x27;s possible that they put a different boot version on my boot partition than was there before?  It&#x27;s a Late 2012 iMac - Just guessing here - but how do I awaken the command: csrutil now?Below is the diskutil list showing the Boot Recovery HD --bash-3.2# diskutil list/dev/disk0   #:                       TYPE NAME                    SIZE       IDENTIFIER   0:      GUID_partition_scheme                        *121.3 GB   disk0   1:                        EFI EFI                     209.7 MB   disk0s1   2:          Apple_CoreStorage                         121.0 GB   disk0s2   3:                 Apple_Boot Boot OS X               134.2 MB   disk0s3/dev/disk1   #:                       TYPE NAME                    SIZE       IDENTIFIER   0:      GUID_partition_scheme                        *3.0 TB     disk1   1:                        EFI EFI                     209.7 MB   disk1s1   2:          Apple_CoreStorage                         3.0 TB     disk1s2   3:                 Apple_Boot Recovery HD             650.0 MB   disk1s3/dev/disk2   #:                       TYPE NAME                    SIZE       IDENTIFIER   0:     Apple_partition_scheme                        *1.3 GB     disk2   1:        Apple_partition_map                         30.7 KB    disk2s1   2:                  Apple_HFS OS X Base System        1.3 GB     disk2s2/dev/disk3   #:                       TYPE NAME                    SIZE       IDENTIFIER   0:                  Apple_HFS Macintosh HD           *3.1 TB     disk3                                 Logical Volume on disk0s2, disk1s2                                 BCA2-FE-48-A5EA-00A3                                 Unencrypted Fusion Drive/dev/disk4

BobHarris · Answer

It is possible that the Recovery Partition is for an older version of OS X.I would think you could click on the Apple menu icon -&gt; About this Mac while in Recovery mode and find out what version the Recovery partition is running./usr/bin/csrutil is where csrutil should be located, if this is an El Capitan recovery partition.Re-Install El Capitan over top of your existing boot disk (DO NOT erase), and that should put an El Capitan Recovery partition in place.

dialabrain · Answer

I don&#x27;t know why the command isn&#x27;t working for you but my understanding is SIP is disabled while in Recovery Mode so you should be able to replace the file while there.