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change default root partition size #2415

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merged 1 commit into from
May 9, 2024
+21 −9
Merged

change default root partition size #2415

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30 changes: 21 additions & 9 deletions archinstall/lib/interactions/disk_conf.py
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Original file line number Diff line number Diff line change
Expand Up @@ -257,6 +257,21 @@ def select_mount_options() -> List[str]:
return []


def process_root_partition_size(available_space: disk.Size, sector_size: disk.SectorSize) -> disk.Size:
# root partition size processing
total_device_size = available_space.convert(disk.Unit.GiB)
if total_device_size.value > 500:
# maximum size
return disk.Size(value=50, unit=disk.Unit.GiB, sector_size=sector_size)
elif total_device_size.value < 200:
# minimum size
return disk.Size(value=20, unit=disk.Unit.GiB, sector_size=sector_size)
else:
# 10% of total size
length = total_device_size.value // 10
return disk.Size(value=length, unit=disk.Unit.GiB, sector_size=sector_size)


def suggest_single_disk_layout(
device: disk.BDevice,
filesystem_type: Optional[disk.FilesystemType] = None,
Expand All @@ -267,8 +282,9 @@ def suggest_single_disk_layout(
filesystem_type = select_main_filesystem_format(advanced_options)

sector_size = device.device_info.sector_size
total_size = device.device_info.total_size
min_size_to_allow_home_part = disk.Size(40, disk.Unit.GiB, sector_size)
root_partition_size = disk.Size(20, disk.Unit.GiB, sector_size)
root_partition_size = process_root_partition_size(available_space=total_size, sector_size=sector_size)
using_subvolumes = False
using_home_partition = False
mount_options = []
Expand Down Expand Up @@ -315,14 +331,10 @@ def suggest_single_disk_layout(
root_start = boot_partition.start + boot_partition.length

# Set a size for / (/root)
if (
using_subvolumes
or device_size_gib < min_size_to_allow_home_part
or not using_home_partition
):
root_length = device.device_info.total_size - root_start
if using_subvolumes or device_size_gib < min_size_to_allow_home_part or not using_home_partition:
root_length = total_size - root_start
else:
root_length = min(device.device_info.total_size, root_partition_size)
root_length = min(total_size, root_partition_size)

if using_gpt and not using_home_partition:
root_length -= align_buffer
Expand Down Expand Up @@ -356,7 +368,7 @@ def suggest_single_disk_layout(
# But we want to be able to reuse data between re-installs..
# A second partition for /home would be nice if we have the space for it
home_start = root_partition.start + root_partition.length
home_length = device.device_info.total_size - home_start
home_length = total_size - home_start

if using_gpt:
home_length -= align_buffer
Expand Down