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Carbon Copy Cloner - Users Thread - Yosemite to Mojave to Big Sur - and after
- Thread starter mikzn
- Start date
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I use APFS on my SSDs and HDDs. Space sharing APFS volumes are just so darned convenient. Two of my drives are 5TB 2.5" bus powered spinners and I have not noticed any problems.
Hello
Formation this way?
This external HDD is exclusive for macOS Catalina, in a near future I will upgrade to macOS Big Sur, will I need to buy another external Drive to Backup macOS Big Sur?
Thanks
Camelia
Yes. You shouldn’t need to purchase a new drive later on unless the current drive dies.
Then How am I going to backup 2 macOS OS (Catalina and Big Sur) in the same drive?
Camelia
Give the target drive more than one partition and name them accordingly.
;JOOP!
See attachment for a start. Do not forget to partition BEFORE you start to use it.
;JOOP!
Attachments
Carbon Copy Cloner 6.0.2-b1 available if you have beta downloads enabled.
- Fixed
Addressed a handful of crashers and exceptions. - Changed
CCC will no longer preserve system-immutable file flags when restoring items to the startup disk. This was leading to the creation of a folder (typically "Users") that couldn't be removed by the Finder. - Changed
CCC now properly imposes a High Sierra+ requirement for the Remote Macintosh feature. - Changed
Fixed the tooltip on the Source selector when a Big Sur startup volume is selected. Technically that volume is not mounted, but pointing this out is not really necessary. - New
Added color pickers for the lines on the Dynamic Performance Chart. - Changed
Improved the handling of moved folders in the Quick Update feature. Technically these don't cause modifications to files, but nonetheless we should apply these changes when the task runs. - Fixed
Fixed a math issue that was previously causing inflight snapshot removal to not remove enough snapshots in cases where the destination was very full. - Fixed
Fixed an errant case-conflict error that can occur on Case Sensitive APFS destination volumes when a folder name has a non-normalized Unicode character. - Changed
"Next run date" in the CCC Dashboard now correctly rolls over from "tomorrow" to "today" when the date changes. - Fixed
Corrected the behavior of the "Remove excluded files" setting in the Task Filter window. Folders were only getting removed when explicitly excluded via a custom rule (not when unchecked in the main table), and files that were only implicitly excluded (i.e. via the default filter behavior) were getting removed. While that matched CCC v5 behavior, it was not the more conservative result that we were aiming for. - Changed
By default, CCC will process up to four folders simultaneously and copy up to eight files simultaneously. This update reduces simultaneous folder handling to two if CCC cannot verify that both the source and destination are Solid State devices. We have also exposed a setting that allows the user to adjust this value manually in Advanced Settings > Performance & Analysis. - Changed
When creating a read-only disk image, CCC now uses sparsebundle as the default format for the intermediate read-write disk image. Big Sur, in particular, seems reluctant to create sparseimage files, especially on NAS volumes. - Fixed
Fixed a timing issue that led to errors when running a "When files are changed on the source" task soon after startup. - Changed
Addressed an edge case in which a source NAS device may lie about the nature of a symlink (i.e. initially the NAS reports that it is a regular file), leading to errors. - Changed
Corrected the presentation of the startup disk's custom Snapshot Retention Policy.
Mike from CCC warned that the bootable clone may not be dependable and stick with just backing up your data. I would do just that and forget about bootable. Otherwise, you will waste time and stay frustrated.
^^^^If all I want to do is backup data - Drag & Drop from one disk to another does that, and that is indeed how I backup up my data. But, I have ten internal SSDs in my NcMP and five of them have OSs on them. A clone for my boot drive and another of the prior OS has been my modus operandi for years. Why does Apple want to make that an impossible task❓
My plan was to make a third clone of my BS boot drive and update the clone to Monterey.
Lou
My plan was to make a third clone of my BS boot drive and update the clone to Monterey.
Lou
This is wrong. A CCC backup of your Data volume (the default mode) can be used to create an exact bootable clone of the drive within an hour or so, either by installing and migrating, or by installing onto the Data volume.
Drag and Drop will not do this.
Another good reason NOT to upgrade to any (interim / maintenance) version right away unless you want to test it.
Beta levels are there to verify that an earlier problem indeed has disappeared.
Soon those will be followed by a stable release.
In the event of forthcoming OS levels: be careful.
;JOOP!
Do you suggest me to enable CCC Snapshots in "Source" and "Destination"
or Only in "Destination"?
or Only in "Destination"?
It really is a matter of personal preference. Many here use Snapshots and many don't.
It really is a matter of personal preference. Many here use Snapshots and many don't.
Thank you
I watch the video in YT and decided not to enable it
But what about you @Apple_Robert do you enable CCC Snapshots?
Just Curios
Camelia
I have Snapshots enabled as well as backup verification.Thank you
I watch the video in YT and decided not to enable it
But what about you @Apple_Robert do you enable CCC Snapshots?
Just Curios
Camelia
Hello @Apple_Robert it is me again 🤪🤪🤪
Do you have Snapshots enabled in both Source (Macintosh HD) AND Destination (External Drive)?
Is backup verification under the tab PostFlight?
For macOS Catalina
What I want is at some point to return to the clean install I did (19H2), no security updates, no apps
(I do not know if it is a good idea or possible with version 6.x)
I remember before was possible
Maybe choosing in Source the "External media" and in the Destination "Macintosh HD"?
Because "Select Startup Disk on Desktop" is not working
What are my options?
Thanks
Camelia
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You want the source for the backup to be Macintosh HD and the destination to be your external drive. Make sure you have the drive selected. CCC usually picks the correct drive when you are setting up a new task.Hello @Apple_Robert it is me again 🤪🤪🤪
Do you have Snapshots enabled in both Source (Macintosh HD) AND Destination (External Drive)?
Is backup verification under the tab PostFlight?
For macOS Catalina
What I want is at some point to return to the clean install I did (19H2), no security updates, no apps
(I do not know if it is a good idea or possible with version 6.x)
I remember before was possible
Maybe choosing in Source the "External media" and in the Destination "Macintosh HD"?
Because "Select Startup Disk on Desktop" is not working
What are my options?
Thanks
Camelia
As to verifying the backup each time, you are correct. It is user Postflight. I also use the other open of "finding and replacing corrupt files from a backup. That is another preference. I can't speak to how well it works as I haven't tested it, yet.
The two screen shots are pics of both options enabled.
With snapshots off, CCC will retain as many backups as your external drive allows. With Snapshots on, you would have to make sure to edit the default rentention parameters to something you want if the default doesn't agree with you.
Attachments
Carbon Copy Cloner 6.0.2-b2 available if you have beta downloads enabled.
- Changed
b2: Fixed a scheduling issue that was causing "When files are modified on the source" tasks to not resume monitoring when the task was back within a user-specified time limit. - Changed
b2: Made some additional enhancements to the handling of destination low-free-space conditions.
Ok I have decided to enable snapshots in the Destination (My External Media) but I still have not tried snapshots, so a suggestion will be more than welcome. Should I enable snapshots in my External and Macintosh HD, Or only enabled in my external drive?
it is very sad that I cannot restore my entire macOS anymore like in CCC v4.x and I have to use Migration Assistant
But with Migration Assistant I can only recovered files, folders and system files, but not the entire macOS Am I right?
Thanks
Camelia
it is very sad that I cannot restore my entire macOS anymore like in CCC v4.x and I have to use Migration Assistant
But with Migration Assistant I can only recovered files, folders and system files, but not the entire macOS Am I right?
Thanks
Camelia
Use both, it doesn't cost anything nor interfere with any funtion, just runs in the background and is good insurance.
If you use Migration Assistant to migrate from a Data volume clone into a new fresh install you will restore your complete system. The Data volume has absolutely everything which is not included in a fresh install, settings apps data etc. It is just as good (possibly better) than a complete clone of everything, but takes longer.
This is the new Apple way and how Time Machine restore also works, and why the CCC default mode is a data only clone.
There is one big gotcha with APFS volumes. Many disk repair utilities have problems with APFS volumes, such as Disk Warrior or Techtool Pro. They cannot rebuild a corrupted volume. The more APFS backup disks you have, the greater the risk that you can lose data. Lost a TM disk just this last week due to a hardware failure, but had 3 other TM backups available so I was OK.
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