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"not a valid volume mount point" Can't make bootable drive

Is @EricFromCanada's fix legitimate? Does it work? I just tried again today to make a bootable usb thumb drive for macOS Sierra.
I tried the creatinstallmedia terminal method, and I get the invalid mount error.

I have the IntallOS.dmg downloaded from apple site (how to get old versions link), and it is 5.01GB. How do I get this working?

Thanks.
 
EricFromCanada said:
I've solved the reissued Sierra installer issue. The original installer's version is 12.6.03, while the reissued installer is version 12.6.06. It turns out that to get the reissued installer working, all you have to do is open its Info.plist file and change the value for CFBundleShortVersionString from 12.6.06 to 12.6.03. This can be done with a single command using plutil:
Code: 
sudo plutil -replace CFBundleShortVersionString -string "12.6.03" /Applications/Install\ macOS\ Sierra.app/Contents/Info.plist


I found this while building an installer drive with DiskMaker X; see my site for the original post.
Click to expand...
So, I would have had to; download the macOS Sierra install file from the "how to get old versions" link on apple site, then run that .dmg file from it, to obtain the "app installer" into my "applications" folder, before running this terminal command, correct?
Because the installer .app has to be in the right folder (applications), correct?
 
sudo plutil -replace CFBundleShortVersionString -string "12.6.03" /Applications/Install\ macOS\ Sierra.app/Contents/Info.plist


This is what I get when I use the code above.

/Applications/Install macOS Sierra.app/Contents/Info.plist: file does not exist or is not readable or is not a regular file (Error Domain=NSCocoaErrorDomain Code=260 "The file “Info.plist” couldn’t be opened because there is no such file." UserInfo={NSFilePath=/Applications/Install macOS Sierra.app/Contents/Info.plist, NSUnderlyingError=0x7fb0af6060c0 {Error Domain=NSPOSIXErrorDomain Code=2 "No such file or directory"}})


Does anyone have an idea? this is way too advanced for me.

Thank you
 
EricFromCanada said:
I've solved the reissued Sierra installer issue. The original installer's version is 12.6.03, while the reissued installer is version 12.6.06. It turns out that to get the reissued installer working, all you have to do is open its Info.plist file and change the value for CFBundleShortVersionString from 12.6.06 to 12.6.03. This can be done with a single command using plutil:
Code: 
sudo plutil -replace CFBundleShortVersionString -string "12.6.03" /Applications/Install\ macOS\ Sierra.app/Contents/Info.plist


I found this while building an installer drive with DiskMaker X; see my site for the original post.
Click to expand...
This totally worked. Thanks.
 
This worked for me as well. You guys are simply amazing at finding answers.


Thank you!
 
EricFromCanada said:
I've solved the reissued Sierra installer issue. The original installer's version is 12.6.03, while the reissued installer is version 12.6.06. It turns out that to get the reissued installer working, all you have to do is open its Info.plist file and change the value for CFBundleShortVersionString from 12.6.06 to 12.6.03. This can be done with a single command using plutil:
Code: 
sudo plutil -replace CFBundleShortVersionString -string "12.6.03" /Applications/Install\ macOS\ Sierra.app/Contents/Info.plist


I found this while building an installer drive with DiskMaker X; see my site for the original post.
Click to expand...
Thanks EricFromCanada, it works - this is the easiest way to resolve the bug in Apple's latest 10.12.6 macOS Installer.
 
EricFromCanada said:
I've solved the reissued Sierra installer issue. The original installer's version is 12.6.03, while the reissued installer is version 12.6.06. It turns out that to get the reissued installer working, all you have to do is open its Info.plist file and change the value for CFBundleShortVersionString from 12.6.06 to 12.6.03. This can be done with a single command using plutil:
Code: 
sudo plutil -replace CFBundleShortVersionString -string "12.6.03" /Applications/Install\ macOS\ Sierra.app/Contents/Info.plist


I found this while building an installer drive with DiskMaker X; see my site for the original post.
Click to expand...
Nice one, thanks Eric!
 
The strangest thing... I was completely unable to get away from the "/Volumes/<my usb stick> is not a valid volume mount point" error. I tried old versions of the installer in my archives. I downloaded from archive.org (they have great selections of old installers, btw), I even downloaded from shady sites.

What eventually worked was formatting the USB stick as "Apple Partition Map." MBR didn't work, GPT (aka GUID) didn't work, but the one disk layout I've never ever before used was the savior. So weird. My High Sierra installation USB stick, which is step two in this process is MBR with one (1) partition on it, and it works just fine.

So ... If you're SOL, try Apple Partition Map. Works with my Mac mini 2014.
 
EricFromCanada said:
I've solved the reissued Sierra installer issue. The original installer's version is 12.6.03, while the reissued installer is version 12.6.06. It turns out that to get the reissued installer working, all you have to do is open its Info.plist file and change the value for CFBundleShortVersionString from 12.6.06 to 12.6.03. This can be done with a single command using plutil:
Code: 
sudo plutil -replace CFBundleShortVersionString -string "12.6.03" /Applications/Install\ macOS\ Sierra.app/Contents/Info.plist


I found this while building an installer drive with DiskMaker X; see my site for the original post.
Click to expand...
You are a gentleman and a scholar, whose brilliant solution to this silly problem is going to let me rescue dozens of stranded ancient FCP7 project files by installing the old Final Cut Studio on the last supported version of macOS that would run it on a nearly decade old Mac mini and export a bunch of XMLs of timelines.
 
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i experienced apples fantastic recovery process aswell on an old macbook pro in the family. the plist change in sierra installer fixed it for me creating an usb installer.

i didnt have another mac to do this on so for anyone in the future reading this post , just know you can do the entire process from the recovery interface and the terminal.

using Apples guide to create recovery usb for sierra, in the terminal:

“curl” to download the DMG file to your new drive (curl URL -O InstallOS.dmg)
mount the image using hdiutil (hdiutil attach /pathtoimage/InstallOS.dmg)
install package using installer (installer -pkg path/installIS.pkg -target /Volumes/disk)

the installer is then “installed” in an Applications folder on this drive, and you can continue using the createinstallmedia from this location.

this assumes OS version with direct download link, not the ones with appstore links.
 
killmoms said:
You are a gentleman and a scholar, whose brilliant solution to this silly problem is going to let me rescue dozens of stranded ancient FCP7 project files by installing the old Final Cut Studio on the last supported version of macOS that would run it on a nearly decade old Mac mini and export a bunch of XMLs of timelines.
Click to expand...
Exactly why I'm using Sierra, for FCP7, it for a bunch of macs in a cable access studio running FCP7, forcing many members to use anything else would cause a revolution! Thanks everyone!
 
EricFromCanada said:
I've solved the reissued Sierra installer issue. The original installer's version is 12.6.03, while the reissued installer is version 12.6.06. It turns out that to get the reissued installer working, all you have to do is open its Info.plist file and change the value for CFBundleShortVersionString from 12.6.06 to 12.6.03. This can be done with a single command using plutil:
Code: 
sudo plutil -replace CFBundleShortVersionString -string "12.6.03" /Applications/Install\ macOS\ Sierra.app/Contents/Info.plist


I found this while building an installer drive with DiskMaker X; see my site for the original post.
Click to expand...
You are the MAN! Thanks Eric.
 
EricFromCanada said:
I've solved the reissued Sierra installer issue. The original installer's version is 12.6.03, while the reissued installer is version 12.6.06. It turns out that to get the reissued installer working, all you have to do is open its Info.plist file and change the value for CFBundleShortVersionString from 12.6.06 to 12.6.03. This can be done with a single command using plutil:
Code: 
sudo plutil -replace CFBundleShortVersionString -string "12.6.03" /Applications/Install\ macOS\ Sierra.app/Contents/Info.plist


I found this while building an installer drive with DiskMaker X; see my site for the original post.
Click to expand...
Necroposting, but this is killer. It works! I was banging my head on the wall forever trying to make a Sierra install disk. Many thanks!!
 
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