Well I to am in the land of the lost and “command not found”. I did review the solutions prior to posting my query. That said, Mac OS Mojave 14.6, running on a Mid 2012 Mac Pro. The OS has been reinstalled. All software updates are current.

Good afternoon Mr. Bennet,

first things first, please excuse me if I did not get the right configuration regarding your name/last name. My apologies. Secondly, thank you for your responsive correspondence. Thirdly, I just wanted to be sure that I am accurately interpreting your reply and please understand this isn’t in anyway a slight on your part concerning what your reply communicates. That said….

I downloaded the Mojave OS (macOSUpdCombo10.14.6.dmg) one more time. Upon which landed in donwnload folder which hasn’t been the case previously. Usually the OS ends up in the app folder. The installer package created from the .dmg has been placed into the applications folder. Here lies the crux of my inquiry.

So the “macOSUpdCombo10.14.6.pkg” file can be manipulated via cut, paste and replace extension etc. to read “Install/ macOSUpdCombo10.14.6/ Mojave.app” OR “Install/ macOS/ Mojave.app”. I’m assuming, as indicated in your correspondence that the “Install/ macOS/ Mojave.app” is the correct format for the installer. Please advise.

Also, a space after each back slash is also part of the necessary protocols for creating the USB bootable OS installer. USB flash drive is and has been labled exactly MyVolume. I have performed  this technique on several occasions successfully. This time not so much. 

Thank you kindly for your patience and your support,

Leonard

Good morning Mr. Bennet,

Thank you once again for your patience, expertise, and priceless ability to keep the faith. I have made some progress. Created a bootable macOS USB drive using the terminal. A 2013 MacBook Pro enabled me to download the proper Mojave OS. Though, attempting to boot the MacPro (mid-2012) with the USB drive failed no matter what key command I used at startup. I tried the Option key at startup, the Command-R keys, Command Option Shift delete keys, Command Option-R, etc. Keep in mind when using the Key Commands ....this MacPro failed to startup at all when executing these key commands. Of course, this negated booting from the recovery partition (Base System). Disk Utilities and a Re-install of Mojave plus updates all proved to be fruitless, though the mental anguish was flourishing. And yes the SSD could possibly be an issue, though the Disk Utilities are not indicating any issues with the internal drive. Even so, I have reservations concerning its performance. I’m kind of curious to see what happens if I install a Brand new drive. Anyway, I did mention that I’ve made some progress right......

This dilemma prompted me to use a 3rd party disk utility that installs/creates a partition for its recovery drive. Once the installation was successful it immediately prompted me to choose a startup disk......you guessed it...... there it was the bootable macOS Mohave USB installer that was created using the terminal. Thus the clean install did ensue. The capacity to boot from alternate disks, both internal and external has been restored as a result.

ATTENTION: My apologies regarding editing concerns for my previous post (01/12/24)

01/22-23/23

my Mid 2012 Mac Pro was running Mac OS Mojave 14.6 when purchased it last year. While the OS has been “reinstalled” and OS software updates are current, an erase and a fresh OS install will be of benefit for measuring the performance impact potential of future hardware upgrades. It needed a LOT more than that after UPS got thru with it. It took me 2 plus months to get that debacle ironed out. Another story for another time. Doesn’t look good in these pics but this MacPro seemed to be in good working order even with all its dents, bumps, and bruises. The enclosure has been replaced and the CPUs have been upgraded. A work in progress.

Thank you kindly for all your support, Mr. Bennet. Ever grateful for the responsive feedback!

Good evening Mr Bennet,

Wow!! I had no idea that Combo update was inadequate. Like the train that took the dirt path. Doomed from the get-go. Currently running MacOSX Mojave 14.6.

Thank you Mr. Bennet!! Back on track. I’ll let you know how this develops.

Good morning Mr.Bennet, 

Forgive me this is yesterday’s news. I live in Cincinnati and was a little distracted with Sunday’s sporting event.....My communique, may it be a day late, will reveal why the wheels have falling off the wagon and how this kid ended up in the land of the lost and “command not found”. And even more so, answer your question, “why do you want Bootable USB stick installer of Mojave”?

01/22-23/23

my Mid 2012 Mac Pro was running Mac OS Mojave 14.6 when purchased last year. While the OS has been “reinstalled” and OS software updates are current, an erase and a fresh OS install will be of beneficial for measuring performance impact potential of other hardware upgrades. It needed a LOT more than that after OPS got thru with it. It took me 2 plus months to get that debacle ironed out. Another story for another time.

If you recall I was in pursuit of a bootable full version of Mojave that oddly enough didn’t play out so well. I found update versions, update combo versions, supplements, etc. No luck accessing a full version installer of Mojave and for what ever reasons, it felt like I was chasing a ghost. Eventually the mystery was resolved but, for a minute the quest/search was futile. So now I'm thinking this is reminding me of another “command not found” kinda thing if you will..... My suspicion was that Safari may some how be corrupt. With that in mind, I deployed the FireFox browser. In the process/attempt to sync the browser bookmarks I discovered issues with the library content. The .plist files required to sync bookmarks with the two browsers the required .plist files were missing. A closer exam of the both library and system library content was looking sketchy. While most all folders were present within the libraries the content within the folders wasn’t always complete and a lot of the file titles were rendered w/gray type instead of black.. didn’t appear to have a recovery disk either??…… So ….I have a bootable version of High Sierra on a USB flash drive. Now it’s a matter of erase and replace the inadequate Mojave OS with High Sierra in order to.... in theory, allow me to access a full version of Mojave. Two attempts to boot w/the USB lnstaller/two different key commands ...Nothing/NADA/zilchhhh. ..........dead. Awesome failure.......outstanding!!! why???? The finder is Corrupt. Once again.......... drum roll..A corrupt finder....An excellent reason the “command not found” error was terrorizing me. I booted a 2013 MacBookPro with the High Sierra bootable USB flash drive. Performed a search that revealed a carousel of full versions of Mojave. It’s not over yet. To be continued.

Good to know sir. One could only wish that would be my issue with w/startup key commands. Fortunately, that configuration recommendation has been deployed for the entire pursuit/quest to achieve the desired outcome. Definitely a protocol for future startup key commands.

Thank you Sir,

Leonard 1956