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coreos / fedora-coreos-docs

Documentation for Fedora CoreOS
https://docs.fedoraproject.org/en-US/fedora-coreos/
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Storage: Increase the size of a mirrored primary partition #630

Closed hrismarin closed 2 months ago

hrismarin commented 2 months ago

Mirroring the boot disk creates root partitions smaller than required 8 GiB and a warning is emitted on login. Correcting the suggested size_mib: 8192 to a higher value of size_mib: 10240 in the boot disk mirroring sections of the docs would be helpful.

jlebon commented 2 months ago

Yeah, I think the issue there is that although the limit check is for exactly 8G, the RAID metadata itself takes up some space and so we slip under the limit.

hrismarin commented 2 months ago

With size_mib: 8192 set, the approximate size of the root partition for mirrored disks is about 7.8 GB, which is probably why a warning is issued on login.