free space before first partition

[fedya]

Hello,
Is there a way to create free space using repart.d/10-gap.conf?

I tried the following approach:

cat mkosi.repart/10-gap.conf
[Partition]
Type=21686148-6449-6e6f-744e-656564454649
Format=
SizeMinBytes=15M
SizeMaxBytes=15M

However, it still creates the partition as /dev/sda1, but i need just an empty space
see screenshot

[MoltenArmor]

As repart.d ducumentation says:

PaddingWeight=
Similar to Weight=, but sets a weight for the free space after the partition (the "padding"). When distributing available space the weights of all partitions and all defined padding is summed, and then each partition and padding gets the fraction defined by its weight. Defaults to 0, i.e. by default no padding is applied.

Padding is useful if empty space shall be left for later additions or a safety margin at the end of the device or between partitions.

Added in version 245.

......

PaddingMinBytes=, PaddingMaxBytes=
Specifies minimum and maximum size constraints in bytes for the free space after the partition (the "padding"). Semantics are similar to SizeMinBytes= and SizeMaxBytes=, except that unlike partition sizes free space can be shrunk and can be as small as zero. By default no size constraints on padding are set, so that only PaddingWeight= determines the size of the padding applied.

Added in version 245.

So you should use PaddingMinBytes=, PaddingMaxBytes=.

[DaanDeMeyer]

Padding is applied after the partition though, not before

[fedya]

May someone suggest me some trick or workaround for it?

[godvino]

This would be very useful for embedded boards where u-boot is expected to be flashed to the sdcard. For now I just declare a dummy partition in repart.d configuration and then manually delete it later using gdisk.

[fedya]

yes, mee too