Shared Linux and Mac OS external drive for Time Machine

[rib00]

Edit: Mods: this should be in High Sierra subforum. I guess I accidentally created it here.

I have an HDD that I use with my Linux computer. There is unallocated space.

I would like to create a partition on the HDD for use with Time Machine.

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tldr
I suppose I could try to have the Mac create and format a partition but I don't like that plan so much. Reason: I have a hunch that current version of GParted is better than an 8 year old version of Disk Utility. If behind the scenes, Disk Utility is using Bash, then that would be the logical conclusion because I read that cira 2016 Mac OS is running a Bash version circa 2007. Then again, maybe Disk Utility works around that. So, uneducated speculation on my part.

Also, I have not had good fortune with Disk Utility. For example,

Thumb drive formatting attempt results in error

MacBook Air 2017 I have a USB thumb drive that I plan to turn into a Mac OS Sierra bootable installer. The MacBook Air had trouble formatting the drive. After taking too long, Disk Utility gave an error. 1) I am surprised that I even need to format the drive. Can't Mac OS just write the...

forums.macrumors.com

Unable to format a drive: Disk Utility Couldn't open disk -69879

MacBook Air 2017 Mac OS Monterey I connected an HDD to my MacBook Air using a Sata to USB 2.0 cable. The HDD had a bootable Windows 10 or Windows 7 install on it. The drive had sat for a looong time without power (maybe 3 years). The 2 partitions for this HDD were visible on my desktop. The...

forums.macrumors.com

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The caveat with using the Linux machine to create the partition is that creating an APFS partition in GParted (on Linux) might not be straightforward.

So, I am leaning towards creating an exFat or HFS+ partition. Then, maybe Mac OS will then need to format the partition again.

Thoughts?

 

[Harddrive]

I still use separate drives for all my OS's one for OS26, one for Win 11 and one for Ubuntu 26.04 that way no errors or mishaps since all 3 use a different language to back up. Tried using a large DAS in the past partioned and formatted for each OS and for the most part it worked sometimes outside of back up failed or an error occurred so after having completely separate drives for each that problem or problems went away .

 

[rib00]

...partioned and formatted for each OS and for the most part it worked sometimes outside of back up failed or an error occurred so after having completely separate drives for each that problem or problems went away .

I think I am going to risk it.
But, it's good to know that I am running a risk - and to be on the alert.