4 ms·
Can somebody ELI5 what this means? Faster boot times?
by jmkni 7y ago
Can somebody ELI5 what this means? Faster boot times?
- Unklejoe 7y agoNot really - it's mainly just notable due to the controversy regarding the license incompatibility of ZFS and the Linux kernel, and the fact that Ubuntu is shipping them together while others deem this a violation.
- jmkni 7y agoThanks!
- resoluteteeth 7y agoZFS is a somewhat popular filesystem but it's not included in the mainline kernel because of licensing issues. Adding support in the Ubuntu installer just makes things simpler for people who want to install ubuntu to a ZFS filesystem. If you don't know what ZFS is you're probably better sticking with the default (EXT4).
- jmkni 7y agoGood to know cheers!
- bsg75 7y agoZFS supports snapshotting and rollback, meaning failed upgrades can be rolled back (by booting with another ZFS capable image). ZFS supports send and receive, meaning a volume can be sent to another ZFS pool for backup. Compression can save on disk space, and in some workloads be a performance benefit trading CPU cycles for IO savings, but this is probably more beneficial on data volumes compared to system volumes. All of the above will be dependent on any limitations present in the options the installer provides, which apparently will be expanded in the forthcoming 20.04 release.
- rhinoceraptor 7y agoYou've been able to boot Ubuntu from ZFS for a while now, it just required you to drop to a shell, create your pool and then manually install onto it. Now that it's fully integrated into the installer, you'd have to have a really good reason not to use it. It's just so much better and battle tested than any of the alternatives.