Got an issue running Disk Utility/First Aid on a 512GB external SATA SSD storing jpg and jpeg pictures. OS is Sonoma 14.1.
Disk Utility shows the SSD structure as:
Top level: JMicron Generic Media
Second level down: Container Disk
Third level down: My Extra Pix
First Aid runs and returns clean reports on the top and third levels.
But running First Aid on the second level Container Disk returns an
error message:
“The repair cannot be performed because one or more volumes are mounted.
: (-69566)
Operation failed.”
If I manually unmount the Container Disk using Unmount on the menu bar,
First Aid runs and returns a clean report.
Upon exiting Disk Utility, the drive is no longer visible in Finder
until unplugged/re-plugged at which point it is usable again
Running Disk Utility again after re-plugging, the same Mounted error
repeats. Repeated entire sequence several times. Same deal.
Problem? If yes- ideas to fix?
Got an issue running Disk Utility/First Aid on a 512GB external SATA SSD storing jpg and jpeg pictures. OS is Sonoma 14.1.
Disk Utility shows the SSD structure as:
Top level: JMicron Generic Media
Second level down: Container Disk
Third level down: My Extra Pix
First Aid runs and returns clean reports on the top and third levels.
But running First Aid on the second level Container Disk returns an
error message:
“The repair cannot be performed because one or more volumes are
mounted.
: (-69566) Operation failed.”
If I manually unmount the Container Disk using Unmount on the menu
bar, First Aid runs and returns a clean report.
Upon exiting Disk Utility, the drive is no longer visible in Finder
until unplugged/re-plugged at which point it is usable again
Running Disk Utility again after re-plugging, the same Mounted error
repeats. Repeated entire sequence several times. Same deal.
Problem? If yes- ideas to fix?
On 2023-11-04 18:34, Capt'n Butler wrote:
Got an issue running Disk Utility/First Aid on a 512GB external SATA
SSD storing jpg and jpeg pictures. OS is Sonoma 14.1.
Disk Utility shows the SSD structure as:
Top level: JMicron Generic Media
Second level down: Container Disk
Third level down: My Extra Pix
First Aid runs and returns clean reports on the top and third levels.
But running First Aid on the second level Container Disk returns an
error message:
“The repair cannot be performed because one or more volumes are
mounted. : (-69566)
Operation failed.”
If I manually unmount the Container Disk using Unmount on the menu
bar, First Aid runs and returns a clean report.
Upon exiting Disk Utility, the drive is no longer visible in Finder
until unplugged/re-plugged at which point it is usable again
Running Disk Utility again after re-plugging, the same Mounted error
repeats. Repeated entire sequence several times. Same deal.
Problem? If yes- ideas to fix?
First off, what prompted you to do the First Aid in the first place?
Far from expert on Mac OS disk anything, but given my past frustration
with DikUtility and "Repair" , etc. I'd
1) Assume the disk is okay and all the files are okay.
2) Get another disk and copy the files over to it.
3) Verify that it's okay ( don't ask - just look at the folder structure
and see if randomly picked files are where they should be ). Personally
I'd write a program to tree search and compare - because: masochist.
4) If that's okay: option: re-format the SSD and re-copy the files back
to it from the 2nd drive.
Move on with life.
On 2023-11-04, Capt'n Butler <rhett@tara.net> wrote:
Got an issue running Disk Utility/First Aid on a 512GB external SATA SSD
storing jpg and jpeg pictures. OS is Sonoma 14.1.
Disk Utility shows the SSD structure as:
Top level: JMicron Generic Media
Second level down: Container Disk
Third level down: My Extra Pix
First Aid runs and returns clean reports on the top and third levels.
But running First Aid on the second level Container Disk returns an
error message:
“The repair cannot be performed because one or more volumes are
mounted.
: (-69566) Operation failed.”
If I manually unmount the Container Disk using Unmount on the menu
bar, First Aid runs and returns a clean report.
Upon exiting Disk Utility, the drive is no longer visible in Finder
until unplugged/re-plugged at which point it is usable again
Running Disk Utility again after re-plugging, the same Mounted error
repeats. Repeated entire sequence several times. Same deal.
Problem? If yes- ideas to fix?
That's expected behavior. The volume needs to be unmounted to be
examined properly is all.
If you aren't using Time Machine to back up the data on your Mac and
external drives, you should start doing so immediately so that you don't
have this constant worry whether your data will go bye-bye.
<https://www.macworld.com/article/229391/how-to-make-sure-time-machine-backs-up-external-drives.html>
It was just a routine periodic integrity check. I'll give your
suggestions a try. thanks...
On 11/4/23 8:52 PM, Jolly Roger wrote:
On 2023-11-04, Capt'n Butler <rhett@tara.net> wrote:
Got an issue running Disk Utility/First Aid on a 512GB external SATA SSD >>> storing jpg and jpeg pictures. OS is Sonoma 14.1.
Disk Utility shows the SSD structure as:
Top level: JMicron Generic Media
Second level down: Container Disk
Third level down: My Extra Pix
First Aid runs and returns clean reports on the top and third
levels. But running First Aid on the second level Container Disk
returns an error message:
“The repair cannot be performed because one or more volumes are
mounted. : (-69566) Operation failed.”
If I manually unmount the Container Disk using Unmount on the menu
bar, First Aid runs and returns a clean report.
Upon exiting Disk Utility, the drive is no longer visible in Finder
until unplugged/re-plugged at which point it is usable again
Running Disk Utility again after re-plugging, the same Mounted error
repeats. Repeated entire sequence several times. Same deal.
Problem? If yes- ideas to fix?
That's expected behavior. The volume needs to be unmounted to be
examined properly is all.
Yeah, but what I'm not understanding is why DU/FA doesn't auto-unmount
this disk prior to running the scan as it does with every drive.
On 2023-11-05, Capt'n Butler <rhett@tara.net> wrote:
On 11/4/23 8:52 PM, Jolly Roger wrote:
On 2023-11-04, Capt'n Butler <rhett@tara.net> wrote:
Got an issue running Disk Utility/First Aid on a 512GB external SATA SSD >>>> storing jpg and jpeg pictures. OS is Sonoma 14.1.
Disk Utility shows the SSD structure as:
Top level: JMicron Generic Media
Second level down: Container Disk
Third level down: My Extra Pix
First Aid runs and returns clean reports on the top and third
levels. But running First Aid on the second level Container Disk
returns an error message:
“The repair cannot be performed because one or more volumes are
mounted. : (-69566) Operation failed.”
If I manually unmount the Container Disk using Unmount on the menu
bar, First Aid runs and returns a clean report.
Upon exiting Disk Utility, the drive is no longer visible in Finder
until unplugged/re-plugged at which point it is usable again
Running Disk Utility again after re-plugging, the same Mounted error
repeats. Repeated entire sequence several times. Same deal.
Problem? If yes- ideas to fix?
That's expected behavior. The volume needs to be unmounted to be
examined properly is all.
Yeah, but what I'm not understanding is why DU/FA doesn't auto-unmount
this disk prior to running the scan as it does with every drive.
It probably tries, but some process is busy using it. For instance,
often Spotlight will be indexing a drive and it will fail to unmount as
a result.
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