Preparatory to doing an upgrade of Fedora on one of my linux boxes, I decided it was time to revise the disk layouts. Specifically, I finally got around to building a separate partition for \/home. After doing a little reading, it looked to me like a good way to do this was to use btrfs. Initially I also made a separate \/var, but decided that was both unneeded and error prone, and went another way. The main objective of this work was to reduce the drag in upgrading Fedora.<\/p>\n
Root is on a small (64GB) SSD, LUKS encrypted which has \/boot and an LVM VG for \/ and swap. \/ is ext4. I built a 2GB mdadm raid-1 mirror with LUKS encryption on top of it, and then layered a btrfs file system on that called oreganodata. The root of oreganodata is not typically mounted, but has the following subvolumes automounted at boot time:<\/p>\n
\nIn addition oreganodata has two other subvolumes:<\/p>\n
These two subvolumes are not typically mounted. The backupcache subvolume is mounted during the nightly backup process to capture \/etc, \/root and anything else that occurs to me that I might need.<\/p>\n
With this scheme creating a new \/ in order to install a new version of Fedora is much, much easier. After installing there is not much to do. Recreate the user accounts and the fstab, and some symlinks in various places.<\/p>\n
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Preparatory to doing an upgrade of Fedora on one of my linux boxes, I decided it was time to revise the disk layouts. Specifically, I finally got around to building a separate partition for \/home. After doing a little reading, it looked to me like a good way to do this was to use btrfs. … Continue reading New disk layout using btrfs<\/span>