On Mon, Jul 22, 2024 at 11:21 PM Alex <mysqlstudent@xxxxxxxxx> wrote:
Hi,I've used fedora since it was called Red Hat, but this is the first time I've seen disk compression and mounting the same partition on multiple mount points.Can someone help me understand what's happening here?UUID=832cbf4d-a17f-457d-b768-bd5c1a26bf86 / btrfs subvol=root,compress=zstd:1 0 0
UUID=a3e1f06d-f666-442f-9cd5-4d2833552e9c /boot ext4 defaults 1 2
UUID=832cbf4d-a17f-457d-b768-bd5c1a26bf86 /home btrfs subvol=home,compress=zstd:1 0 0This is the fstab from my new default fedora40 server install. Why is it mounting /dev/sda3 (PERC RAID5) on both root and home?
I'm also curious about the real-time disk compression. I wasn't aware it could be used on the root filesystem.
I have another fedora38 server that I plan to upgrade shortly. Can I perform an update in place to do the same with my fedora38 server and xfs or it is only supported on btrfs?What is the benefit of mounting the same partition on multiple mount points?
This one of the benefits of btrfs -- root and home are btrfs sub-volumes. They share the space of the the parent volume, so
inexperienced users don't end up with lots of free space one one partition and no free space on another.
George N. White III
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