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A comment on What to Expect from Debian/Trixie. Parent comment

Re:What to Expect from Debian/Trixie by mikae1 on Wednesday July 23, 2025 @02:07PM (#44662185)
But you can't do that on a live system as you can with Windows or macOS. Not a problem for pre release upgrade perhaps. But I'm so missing this feature from macOS.
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Re:What to Expect from Debian/Trixie by pak9rabid on Wednesday July 23, 2025 @02:35PM (#44662479)
You can if you're using LVM. Take a snapshot of the logical volume your system is on, then run `dd' against the snapshot, as it's essentially a frozen point-in-time.

I've used this trick many times in a live, rw environment.

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Re:What to Expect from Debian/Trixie by hysan on Wednesday July 23, 2025 @02:50PM (#44662654)
Depends on your filesystem. For example, I certainly can as I’m using btrfs. I’m also using Timeshift for easy management of snapshots. As others have mentioned, there are other choices too like Snapper that all work well.
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Re:What to Expect from Debian/Trixie by SAI_Peregrinus on Wednesday July 23, 2025 @02:36PM (#44662484)
You can snapshot the filesystem if you're using BTRFS, ZFS, or another Copy-on-Write filesystem.
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