Created attachment 1667186 [details]
Video

Description of problem:

In Anaconda, when I want to use Custom partitioning, I arrive into unexpected behaviour of the "Desired Capacity" field. The field looks that it only accepts certain values (a size number + size unit => 10 GiB), but it does not complain when I use the number followed by the % sign. However, it does not calculate the exact number value using the % (as fdisk would) and it directly changes the value to MiB. So, instead of 100%, I am getting 100 MiB.

Previously, I have used the "100%" string to ask for the maximum size of the partition available on the rest of the disk and it seemed to work. Other use cases to achieve the same were to leave the field empty (does not work anymore), or to enter an unrealistically high number and it changed to the maximum possible (still works).

Please, see the attached video for the behaviour.

Version-Release number of selected component (if applicable):

Anaconda in 20200225.n.0 compose.

How reproducible:

Always

Steps to Reproduce:
1. Go to Custom partitioning.
2. Delete everything.
3. Choose Standard partitions.
4. Delete swap.
5. Try to resize root to the maximum size.

Actual results:

See above.

Expected results:

Most happy, I would be, if it accepted the % and it would calculate the percentage of the available free space.
Alternatively, do not accept anything else than just number + unit and never convert percentages into MiB or anything else.


Additional info: