Changing login screen seems not to be possible anymore in Monterey?

[CLS7]

It seems not possible to change the login screen as I could do in Big Sur. Do any of you have a working method to changing it?

 

[webg3]

1. System Preferences > Users & Groups.
2. Open lock to make changes.
3. Right click on user in left column > Advanced Options.
4. Copy UUID value.
5. Go to /Library/Caches/Desktop Pictures.
6. If it doesn’t exist create Desktop Pictures folder.
7. Inside Desktop Pictures create folder with UUID value as name.

lockscreen.png

8. Right-click on folder > Get Info.
9. Open lock to make changes.
10. Grant permission to Read & Write to user, admin, everyone.
11. Change desktop wallpaper.
12. Restart computer.

 

[gilby101]

lockscreen.png

Isn't that for the Lock Screen shown after waking from a locked screen. The OP is asking about the Login Screen shown at login after Mac startup.

 

[CLS7]

1. System Preferences > Users & Groups.
2. Open lock to make changes.
3. Right click on user in left column > Advanced Options.
4. Copy UUID value.
5. Go to /Library/Caches/Desktop Pictures.
6. If it doesn’t exist create Desktop Pictures folder.
7. Inside Desktop Pictures create folder with UUID value as name.

lockscreen.png

8. Right-click on folder > Get Info.
9. Open lock to make changes.
10. Grant permission to Read & Write to user, admin, everyone.
11. Change desktop wallpaper.
12. Restart computer.

This is exactly what I do in Big Sur but this method seems not to work in Monterey. Have you tried this? is it working for you?

 

[CLS7]

For some unknown reason, I could changing the login background now with this method 😀

 

[iStorm]

Just a note for others that might see this thread, this method only works if FileVault is turned off. It’s nearly impossible, if at all, to change the login background when FileVault is turned on. I have a post here for more info.

 

[HiFiGuy528]

@webg3 Thank you for sharing the tip. I noticed when Guest is turned ON, it reverts back to original wallpaper. Is there was way to fix that? I like having Guest turned ON in case the MacBook is lost or stolen the thief can get on the internet for me to locate the Mac in FindMy.

 

[zarathu]

I almost never use the login screen since I only reboot the system once every 2 months if something goes wrong. I just put it to sleep by closing the lid or commanding sleep. Rebooting everyday is a PC thing since sleep uniformily shuts down the computer in windows.

 

[barlaci73]

Monterey seems moved the background picture to:

% ls -l /System/Library/Desktop\ Pictures/M*.heic
-rw-r--r-- 1 root wheel 98038775 Oct 18 05:30 /System/Library/Desktop Pictures/Monterey Graphic.heic

Even with sudo could not change picture (or change from read-only): operation not permitted.

 

[Aguaman]

I haven't tried it, but one idea is to try disabling SIP. Then change the permissions on the folder and files. Add or change the files you want. When done, enable SIP again. https://stackoverflow.com/questions...y-file-system-to-a-writable-file-system-on-ma

 

[gilby101]

I haven't tried it, but one idea is to try disabling SIP. Then change the permissions on the folder and files. Add or change the files you want. When done, enable SIP again. https://stackoverflow.com/questions...y-file-system-to-a-writable-file-system-on-ma

That isn't sufficient with Monterey (as you would know if you had tried it). In particular you need to reestablish the cryptographic hash on the Signed System Volume (not easy) and then bless the drive for booting. And you need to remove FileVault (see an earlier post above). And finally, it will all need to be done again after the next macOS update.

 

[nmt1900]

Just a note for others that might see this thread, this method only works if FileVault is turned off. It’s nearly impossible, if at all, to change the login background when FileVault is turned on. I have a post here for more info.

The essence is that Filevault password prompt screen is not a login screen even if it looks like one.

 

[IckeJacky]

I found two Links in /System/Library/CoreServices:

cd /System/Library/CoreServices

ls -la Def*

lrwxr-xr-x 1 root wheel 99 18 Okt 14:36 DefaultBackground.jpg ->
/System/Library/PrivateFrameworks/SystemDesktopAppearance.framework/Resources/DefaultBackground.jpg

lrwxr-xr-x 1 root wheel 53 18 Okt 14:36 DefaultDesktop.heic ->/System/Library/Desktop Pictures/Ventura Graphic.heic

The files DefaultBackground.jpg and Ventura Graphic.heic are the files you have change, but the Filesystem is read only.

 

[cadec]

did anyone ever figure out how to change the HATED DESPICABLE Monterey initial splash root boot login screen background?

HATE HATE HATE it with a passion. hating apple more with every passing year. and I've been there from the 80s.

 

[gilby101]

did anyone ever figure out how to change the HATED DESPICABLE Monterey initial splash root boot login screen background?

Upgrade to Ventura?

Seriously, I found the drab Monterey splash screen to be depressing. Not the way to start a day. The Ventura login screen has cheerful colours and more uplifting shapes (like a flower coming into bloom).