Leap 16, immutability /ALP versus ext4

Btfrs seems to be mandatory for the ALP / immutable system.

Does Leap 16 require an ext4 based system reformatting to btrfs? Will it skip the ALP/immutability setup when discovering an existing ext4 setup?

Will Leap 16 give the choice to install it without the ALP / immutability setup, the traditional way?

I have a test VM with Leap 16 installed on ext4 via the network installer. The default is btrfs etc. since years in Leap, but alternate setups are still available.

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Yes, the immutable version of Leap 16 will require btrfs, it literally can’t work without it.

I do not believe the traditional install will require it. Btrfs is the default selection, but you should be able to select ext4 or xfs or whatever other filesystem that is supported by the kernel.

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Yes, immutable requires btrfs.
But, if you can install Leap 16 on a ext4 system, that implies, immutable ALP install is not mandatory with Leap 16. The question is just, is a non immutable, non ALP setup supported, does it work well, just as we are used to it, or will some things break. If they put all efforts in ALP, in the long run there may be no choice.
ALP is such a big change, I wish there were more detailed information, a FAQ or wiki.

You keep using this term ALP.

What exactly do you mean? Because I don’t think it means what you think it means.

I have Leap 16 installed in a VM. I went with most defaults, so it is using “btrfs”. But it is not immutable. It looks usable.

That said, I’m personally considering switching to Tumbleweed. This is not because of a Leap problem. It is because of the limitations of the “agama” installer. For years, I have been using an encrypted LVM. On my main desktop, I have Leap 15.5, Leap 15.6 and Tumbleweed in logical volumes on my encrypted LVM. If I could work out how to do it, I would replace the Leap 15.5 with Leap 16.0. But the agama installer does not seem to provide a way of installing into an existing logical volume.

Hi! He obviously means ‘Adaptable Linux Platform’ for what it’s worth- - -whatever that is. Whole lot ogf buzz about it here the past months. It’s got everybody (lots of people) wondering just what it is all about? For developers maybe? Lots of text, very little substance. Same goes for BTRFS; lots of persons justc don’t need it and the extra work of ‘roll-backs’. Traditional methods are just fine. I mean, just how many of us are using financial servers with a need for transactional processing anyway? Plus it’s a space hog. My 2 cents. . . rob

This might be helpful, for those unclear about ALP … fairly current post:

This discussion belongs to the Open Chat.