And so it's clear how this size is determined by fwupd it's based on the size of the payload the system will be using (IE the SPI size):
https://github.com/fwupd/fwupd/blob/9713cead62e79da26d4c5637dd9682b21a9f0b21/plugins/uefi- capsule/fu-uefi-device.c#L635 The size is doubled because often the firmware updater will make a backup of the SPI to the ESP or will extract the payload while updating. I think a reasonable default would be to ensure that there is 128MB of free space available to cover up to a 64Mb SPI part and a backup. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2064023 Title: Installer should detect small ESP in a dual boot To manage notifications about this bug go to: https://bugs.launchpad.net/subiquity/+bug/2064023/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs