New function that ensures that a partition can hold the total sum of all
the required sizes of specific directories on the partition. The
function sums the required directory sizes grouped by their mountpoint
and then resizes the entity path of that Mountable.
Add a new parameter `lvmify` to `NewPartitionTable` that, if set to
`true`, will cause the root partition to be wrapped in LVM in case
it is not in a LVM volume group. Set this to `false` for now so no
actual change should happen anywhere. Layouts where the root is
directly on a LUKS container are not yet supported.
Add tests for this.
Add a few test partition tables with well known configurations, like
LVM, LVM on top of LVM and Btrfs in addition to the plain layout that
is currently used in most partition tables. Add very basic checks,
such as that `NewPartitionTable` works and we have approximately the
correct size.
Co-Authored-By: Christian Kellner <christian@kellner.me>
Use bytes internally everywhere and convert to sectors only when writing
the options for the stages.
Changed the AlignUp() method to not do the alignment if the input is
already aligned. This changes the behaviour when the size is 0, but
that's not a realistic use case. Updated unit tests to match.
Manifests are unaffected.
Co-Authored-By: Christian Kellner <christian@kellner.me>
Add a utility method that can be used to align data to the next "grain"
which is currently defined as 1 MiB -- the default used by sfdisk.
Add corresponding tests.
The method assert.GreaterOrEqual(t, a, b) asserts that a >= b,
but the arguments were (expected, actual), which is the wrong
way around since we want to assure that the actual size is at
least the expected size, i.e. actual >= expected and thus the
argument should be (actual, expected).
The partition table size (pt.Size) is in sectors while our checks and
customizations are in bytes, so we need to convert when comparing.
Co-Authored-By: Achilleas Koutsou <achilleas@koutsou.net>
Modify the signature of `CreatePartitionTable` so that it is
possible to return errors from the function. This is not yet
used, but will be in the near future. Change all call sites
accordingly: in most cases we can just bubble up the error.
Pass the `basePartitionTable` argument of `CreatePartitionTable`.
Now that we clone the partition table at the beginning of the
method there is no need to pass a copy of the partition table.
