Renaming APFS boot volume

[Ben J.]

Something interesting. First, if I change the boot drive from Finder, only the OS volume name changes, the Data volume name does not change. However, if I change the OS volume name in DU, the Data volume also changes without me having to explicitly change the Data volume name.

Ah, interesting.
So, it seems DU is the way to change back to original name, then.

It appears that if I change the boot drive name (regardless of whether the Data volume name changes), the name shown in the boot selection (holding down the option key when restarting) always shows the old name regardless.

Well, When I changed the name in finder, and DU still showed the old name of Data volume, the name in both boot selection and option-on startup reflected the Data-volume name.
After changing it in DU, it showed the new name everywhere.

 

[mikzn]

Looks like this is a bug because if I go to System Preferences->Startup Disk, the name change is reflected there correctly. Wonder if 10.15.5 acts this way.

Seems odd that Finder does not change the Data volume name and in DU it does. Maybe a bug in the Finder.

I did not try the "(holding down the option key when restarting)" to test 10.15.5 - because I have put everything back to where is was and have redone my back up and am back to square one

The whole data volume thing is confusing - I wonder if the first volume (non Data) is the recovery drive? if it is why wouldn't they just call it the Recovery HD? mine shows 12 g

 

[Taz Mangus]

Well, When I changed the name in finder, and DU still showed the old name of Data volume, the name in both boot selection and option-on startup reflected the Data-volume name.
After changing it in DU, it showed the new name everywhere.

Interesting. So if you changed the name of the boot drive from Disk Utility, that name was reflected in the startup boot selection listed when holding down the Option-key on restart?

So for instance, my boot drive is named "MacBookPro_13 OS". When I changed it to "MacBookPro_131 OS" in Disk Utility, Disk Utility automatically changed the Data volume to "MacBook Pro_131 OS - Data". If I then went to System Preferences->Startup Disk, I would see the boot drive listed as "MacBook Pro_131 OS". However, if I restarted while holding down the Option-key, I would see "MacBookPro_13 OS" listed but not "MacBookPro_131 OS" listed.

I even tried booting into Safe Mode and do the same operations in Disk Utility, still the same results.

 

[Ben J.]

Success.
Both TM and CCC runs fine after changing the names of "No name" and "No name - Data" in DU back to original. Only the CCC task had to be recreated. And the TM backup needed 20gigs, it might be that TM did a complete backup of the smaller of the two, about 10gb.

Anyway, conclusion: If you restore a APFS boot volume from CCC backup and forget to give the volume the original name, just use Disk Utilities to change both system and data names back, and everything works out just fine.

I must say I love Catalina. Runs soo smoothly on my humble i5 iMac with fast SSD's.
[automerge]1590381296[/automerge]

Interesting. So if you changed the name of the boot drive from Disk Utility, that name was reflected in the startup boot selection listed when holding down the Option-key on restart?

No, I'm saying : not until I renamed the "... - Data" volume in DU was it reflected in startup control panel and option-on-startup. (Edit: AND in CCC.)

 

[mikzn]

It appears that if I change the boot drive name (regardless of whether the Data volume name changes), the name shown in the boot selection (holding down the option key when restarting) always shows the old name regardless. I even tried doing a PRAM and SMC reset and it made no difference. Looks like this is a bug because if I go to System Preferences->Startup Disk, the name change is reflected there correctly. Wonder if 10.15.5 acts this way.

FWIW - LOL

Yes 10.15.5 acts exactly as you describe - i just tried it that way you described it

I changed the main volume (non data) in disk utilities it automatically changes the Data Volume - then when I shut down and hold the option button to choose a start drive it shows the original (unchanged) - I booted 2 times to make sure it did it both times.

Still wondering if the OS volume (non Data) is a recovery HD ?

Also I did not have to make a new script for CCC - is seem to work ok with any of the changes above - just gives a warning and asks to verify by clicking the OK or making changes - I did not make any CCC script changes and it seemed to work fine with the volume name changes once verified

 

[Ben J.]

Great seeing you guys.
Thanks for all the help.
Seems like a great forum, this.
I'll be back.
Stay safe!

 

[Taz Mangus]

FWIW - LOL

Yes 10.15.5 acts exactly as you describe - i just tried it that way you described it

I changed the main volume (non data) in disk utilities it automatically changes the Data Volume - then when I shut down and hold the option button to choose a start drive it shows the original (unchanged) - I booted 2 times to make sure it did it both times.

Still wondering if the OS volume (non Data) is a recovery HD ?

From what I understand the OS volume is just contain the OS files that can’t be changed without disabling SIP. If you bring up Disk Utility and you click on the container for the OS volume and look at the info you will show “2 not mounted” in the data break down. One of the 2 not mounted partitions is the recovery partition, the other I think is the internet recovery partition.

 

[Taz Mangus]

Maybe I misunderstood @Ben J. but I got the impression that after he renamed the boot drive (along with the Data volume), his renamed boot drive showed up correctly in the startup option list (Option-key on restart). I need to rebuild my computer again tomorrow so I am going to check that out on a clean install without reinstalling anything.

 

[Ben J.]

Maybe I misunderstood @Ben J. but I got the impression that after he renamed the boot drive (along with the Data volume), his renamed boot drive showed up correctly in the startup option list (Option-key on restart).

Correct.

 

[Taz Mangus]

Correct.

You have 10.15.4 installed and the 10.15.4 supplemental update?

 

[Ben J.]

You have 10.15.4 installed and the 10.15.4 supplemental update?

I don't know what you mean.
I Had 10.15.3 clean install, and did one update, and I'm now on 10.15.4.

 

[Taz Mangus]

I don't know what you mean.
I Had 10.15.3 clean install, and did one update, and I'm now on 10.15.4.

Apple Releases macOS Catalina 10.15.4 Supplemental Update With FaceTime Bug Fix

Apple today released a supplemental update to macOS Catalina 10.15.4, two weeks after releasing the macOS Catalina 10.15.4 update with Screen Time...

www.macrumors.com

 

[Ben J.]

Apple Releases macOS Catalina 10.15.4 Supplemental Update With FaceTime Bug Fix

Apple today released a supplemental update to macOS Catalina 10.15.4, two weeks after releasing the macOS Catalina 10.15.4 update with Screen Time...

www.macrumors.com

Thanks. I missed that.
But I see nothing in the fixes that is relevant to me, and I learned over the years that I don't throw myself onto every update that comes along. I don't fix what's not broken. (Decades with fragile applications like Pro tools DAW, teached me that.)

 

[Taz Mangus]

Thanks. I missed that.
But I see nothing in the fixes that is relevant to me, and I learned over the years that I don't throw myself onto every update that comes along. I don't fix what's not broken. (Decades with fragile applications like Pro tools DAW, teached me that.)

Leads me to believe that the supplemental update may have the bug in it that I am seeing as you did not apply the supplemental update.

 

[Ben J.]

Leads me to believe that the supplemental update may have the bug in it that I am seeing as you did not apply the supplemental update.

Well, I can't really see that would be very likely.

 

[Taz Mangus]

Well, I can't really see that would be very likely.

That would explain why your system shows the updated name in startup options and mine does not. Mine has the supplemental update, yours does not. I will reverify this tomorrow when I rebuild my computer and first clean install 10.15.4. I also tried reapplying the 10.15.4 combo update earlier and startup option still only showed the old name, not the new name.

 

[Ben J.]

That would explain why your system shows the updated name in startup options and mine does not. Mine has the supplemental update, yours does not. I will reverify this tomorrow when I rebuild my computer and first clean install 10.15.4.

Great.

 

[Ben J.]

Background on my problem: I just posted in another thread here about problems w/Catalina.
I think my disk crash had to do with enabling/wakingfrom sleep:
You'll have to go to recent posts:

iMac Pro (2017) Panic Reboots

These random reboots started about 3-4 weeks ago after I did a security update (not sure if that mattered) I couldn't get the reboots to stop so someone suggested I upgrade the OS to Catalina (was on Mojave) to see if that fixed the issue. I am now on Catalina 10.15.4 It ran good for two days...

forums.macrumors.com

 

[Taz Mangus]

As it turns out I had a 10.15.4 installer dated from March (pre-supplemental update). I just did a clean install. I then tried to rename the boot drive in Disk Utility (Data volume automatically gets renamed as well). Booting to startup options screen (Option-key at restart), the old name is shown, NOT the new name. The bug is in 10.15.4. Have no idea if this worked correctly in 10.15.0 to 10.15.3.

Last night I submitted a bug report on this to Apple.

Still curious why it works for @Ben J. and not me given we both are using the same 10.15.4 version.

 

[mikzn]

same thing 10.15.5

 

[Taz Mangus]

same thing 10.15.5

Can you submit a bug report on it to Apple?

 

[mikzn]

Can you submit a bug report on it to Apple?

will do - not sure it is a bug - but ok

 

[Taz Mangus]

The reason I think it is a bug is because System Preferences->Startup Disk correctly shows the boot drive name change.

 

[Ben J.]

As it turns out I had a 10.15.4 installer dated from March (pre-supplemental update). I just did a clean install. I then tried to rename the boot drive in Disk Utility (Data volume automatically gets renamed as well). Booting to startup options screen (Option-key at restart), the old name is shown, NOT the new name. The bug is in 10.15.4. Have no idea if this worked correctly in 10.15.0 to 10.15.3.

Last night I submitted a bug report on this to Apple.

Still curious why it works for @Ben J. and not me given we both are using the same 10.15.4 version.

Thanks for you efforts.

Remember, there is a little difference in your prosedure and mine; you change the two volumes' names in Disk Utilities, while I first changed boot volume's name in Finder, then changed the ... - Data volume's name in DU.

 

[Ben J.]

I just did a restart, held down option key just to check, and:
My startup disk still has the old name, "No Name"!!!
To recap; The disk shows up with its new name, "STARTDISK" in the controlpanel, Disk Utilities, Finder and applications, but NOT at startup w/option key!

I must say somewhat disturbing.
?