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authorAnton Hvornum <anton@hvornum.se>2021-06-13 11:25:33 +0200
committerAnton Hvornum <anton@hvornum.se>2021-06-13 11:25:33 +0200
commitaf790faf7af3412f13bb77b7c5ea2c85f72a1a47 (patch)
treee0eb847f1ceb9c2d7802bf3c85cf02160afbb598 /archinstall
parent9b6d7021a89116f09ad5324f19d7d08b9ec2856b (diff)
Added multi-disk suggested layout. It's sorted on performance, and the first relevant disk with the closest size to a desired size will be used for root, and the same (exluding the one already used) will be used for /home
Diffstat (limited to 'archinstall')
-rw-r--r--archinstall/lib/disk.py111
-rw-r--r--archinstall/lib/user_interaction.py6
2 files changed, 104 insertions, 13 deletions
diff --git a/archinstall/lib/disk.py b/archinstall/lib/disk.py
index 1a592690..97b982d8 100644
--- a/archinstall/lib/disk.py
+++ b/archinstall/lib/disk.py
@@ -27,17 +27,50 @@ def valid_fs_type(fstype :str) -> bool:
"btrfs",
]
-def suggest_single_disk_layout(blockdevice):
+
+def sort_block_devices_based_on_performance(block_devices):
+ result = {device: 0 for device in block_devices}
+
+ for device, weight in result.items():
+ if device.spinning:
+ weight -= 10
+ else:
+ weight += 5
+
+ if device.bus_type == 'nvme':
+ weight += 20
+ elif device.bus_type == 'sata':
+ weight += 10
+
+ result[device] = weight
+
+ return result
+
+def select_disk_larger_than_or_close_to(devices, gigabytes, filter_out=None):
+ if not filter_out:
+ filter_out = []
+
+ copy_devices = [*devices]
+ for filter_device in filter_out:
+ if filter_device in copy_devices:
+ copy_devices.pop(copy_devices.index(filter_device))
+
+ if not len(copy_devices):
+ return None
+
+ return min(copy_devices, key=(lambda device : abs(device.size - 40)))
+
+def suggest_single_disk_layout(block_device):
MIN_SIZE_TO_ALLOW_HOME_PART = 40 # Gb
layout = {
- blockdevice : {
+ block_device : {
"wipe" : True,
"partitions" : []
}
}
- layout[blockdevice]['partitions'].append({
+ layout[block_device]['partitions'].append({
# Boot
"type" : "primary",
"start" : "1MiB",
@@ -49,26 +82,26 @@ def suggest_single_disk_layout(blockdevice):
"format" : "fat32"
}
})
- layout[blockdevice]['partitions'].append({
+ layout[block_device]['partitions'].append({
# Root
"type" : "primary",
"start" : "513MiB",
"encrypted" : True,
"format" : True,
- "size" : "100%" if blockdevice.size < MIN_SIZE_TO_ALLOW_HOME_PART else f"{min(blockdevice.size, 20)*1024}MiB",
+ "size" : "100%" if block_device.size < MIN_SIZE_TO_ALLOW_HOME_PART else f"{min(block_device.size, 20)*1024}MiB",
"mountpoint" : "/",
"filesystem" : {
"format" : "btrfs"
}
})
- if blockdevice.size > MIN_SIZE_TO_ALLOW_HOME_PART:
- layout[blockdevice]['partitions'].append({
+ if block_device.size > MIN_SIZE_TO_ALLOW_HOME_PART:
+ layout[block_device]['partitions'].append({
# Home
"type" : "primary",
"encrypted" : True,
"format" : True,
- "start" : f"{min(blockdevice.size*0.2, 20)*1024}MiB",
+ "start" : f"{min(block_device.size*0.2, 20)*1024}MiB",
"size" : "100%",
"mountpoint" : "/home",
"filesystem" : {
@@ -78,8 +111,66 @@ def suggest_single_disk_layout(blockdevice):
return layout
-def suggest_multi_disk_layout(blockdevices):
- pass
+
+def suggest_multi_disk_layout(block_devices):
+ MIN_SIZE_TO_ALLOW_HOME_PART = 40 # Gb
+
+ block_devices = sort_block_devices_based_on_performance(block_devices).keys()
+
+ root_device = select_disk_larger_than_or_close_to(block_devices, gigabytes=MIN_SIZE_TO_ALLOW_HOME_PART)
+ home_device = select_disk_larger_than_or_close_to(block_devices, gigabytes=MIN_SIZE_TO_ALLOW_HOME_PART, filter_out=[root_device])
+
+
+ layout = {
+ root_device : {
+ "wipe" : True,
+ "partitions" : []
+ },
+ home_device : {
+ "wipe" : True,
+ "partitions" : []
+ },
+ }
+
+ layout[root_device]['partitions'].append({
+ # Boot
+ "type" : "primary",
+ "start" : "1MiB",
+ "size" : "513MiB",
+ "boot" : True,
+ "format" : True,
+ "mountpoint" : "/boot",
+ "filesystem" : {
+ "format" : "fat32"
+ }
+ })
+ layout[root_device]['partitions'].append({
+ # Root
+ "type" : "primary",
+ "start" : "513MiB",
+ "encrypted" : True,
+ "format" : True,
+ "size" : "100%",
+ "mountpoint" : "/",
+ "filesystem" : {
+ "format" : "btrfs"
+ }
+ })
+
+ layout[home_device]['partitions'].append({
+ # Home
+ "type" : "primary",
+ "encrypted" : True,
+ "format" : True,
+ "start" : "4MiB",
+ "size" : "100%",
+ "mountpoint" : "/home",
+ "filesystem" : {
+ "format" : "btrfs"
+ }
+ })
+
+ return layout
class BlockDevice:
diff --git a/archinstall/lib/user_interaction.py b/archinstall/lib/user_interaction.py
index 228fa568..07f98328 100644
--- a/archinstall/lib/user_interaction.py
+++ b/archinstall/lib/user_interaction.py
@@ -9,7 +9,7 @@ import signal
import sys
import time
-from .disk import BlockDevice, valid_fs_type
+from .disk import BlockDevice, valid_fs_type, suggest_single_disk_layout, suggest_multi_disk_layout
from .exceptions import *
from .general import SysCommand
from .hardware import AVAILABLE_GFX_DRIVERS, has_uefi
@@ -601,9 +601,9 @@ def partition_overlap(partitions :list, start :str, end :str) -> bool:
def get_default_partition_layout(block_devices):
if len(block_devices) == 1:
- return suggest_single_disk_layout(blockdevices[0])
+ return suggest_single_disk_layout(block_devices[0])
else:
- return suggest_multi_disk_layout(blockdevices)
+ return suggest_multi_disk_layout(block_devices)
# TODO: Implement sane generic layout for 2+ drives