| index : archinstall32 | |
| Archlinux32 installer | gitolite user |
| summaryrefslogtreecommitdiff |
| -rw-r--r-- | archinstall/lib/disk/user_guides.py | 149 |
diff --git a/archinstall/lib/disk/user_guides.py b/archinstall/lib/disk/user_guides.py new file mode 100644 index 00000000..6f8a1edb --- /dev/null +++ b/archinstall/lib/disk/user_guides.py @@ -0,0 +1,149 @@ +import logging +from ..output import log + +def suggest_single_disk_layout(block_device, default_filesystem=None): + if not default_filesystem: + from ..user_interaction import ask_for_main_filesystem_format + default_filesystem = ask_for_main_filesystem_format() + + MIN_SIZE_TO_ALLOW_HOME_PART = 40 # Gb + + layout = { + block_device.path : { + "wipe" : True, + "partitions" : [] + } + } + + layout[block_device.path]['partitions'].append({ + # Boot + "type" : "primary", + "start" : "1MiB", + "size" : "513MiB", + "boot" : True, + "encrypted" : False, + "format" : True, + "mountpoint" : "/boot", + "filesystem" : { + "format" : "fat32" + } + }) + layout[block_device.path]['partitions'].append({ + # Root + "type" : "primary", + "start" : "513MiB", + "encrypted" : False, + "format" : True, + "size" : "100%" if block_device.size < MIN_SIZE_TO_ALLOW_HOME_PART else f"{min(block_device.size, 20)*1024}MiB", + "mountpoint" : "/", + "filesystem" : { + "format" : default_filesystem + } + }) + + if default_filesystem == 'btrfs' and input('Would you like to use BTRFS subvolumes? (Y/n): ').strip().lower() in ('', 'y', 'yes'): + if input('Do you want to use a recommended structure? (Y/n): ').strip().lower() in ('', 'y', 'yes'): + # https://btrfs.wiki.kernel.org/index.php/FAQ + # https://unix.stackexchange.com/questions/246976/btrfs-subvolume-uuid-clash + # https://github.com/classy-giraffe/easy-arch/blob/main/easy-arch.sh + layout[block_device.path]['partitions'][1]['btrfs'] = { + "subvolumes" : { + '@home' : '/home', + '@log' : '/var/log', + '@pkgs' : '/var/cache/pacman/pkg', + '@.snapshots' : '/.snapshots' + } + } + else: + pass #... implement a guided setup + + elif block_device.size >= MIN_SIZE_TO_ALLOW_HOME_PART: + # If we don't want to use subvolumes, + # But we want to be able to re-use data between re-installs.. + # A second partition for /home would be nice if we have the space for it + layout[block_device.path]['partitions'].append({ + # Home + "type" : "primary", + "encrypted" : False, + "format" : True, + "start" : f"{min(block_device.size*0.2, 20)*1024}MiB", + "size" : "100%", + "mountpoint" : "/home", + "filesystem" : { + "format" : default_filesystem + } + }) + + return layout + + +def suggest_multi_disk_layout(block_devices, default_filesystem=None): + if not default_filesystem: + from ..user_interaction import ask_for_main_filesystem_format + default_filesystem = ask_for_main_filesystem_format() + + # Not really a rock solid foundation of information to stand on, but it's a start: + # https://www.reddit.com/r/btrfs/comments/m287gp/partition_strategy_for_two_physical_disks/ + # https://www.reddit.com/r/btrfs/comments/9us4hr/what_is_your_btrfs_partitionsubvolumes_scheme/ + + MIN_SIZE_TO_ALLOW_HOME_PART = 40 # Gb + ARCH_LINUX_INSTALLED_SIZE = 20 # Gb, rough estimate taking in to account user desktops etc. TODO: Catch user packages to detect size? + + block_devices = sort_block_devices_based_on_performance(block_devices).keys() + + home_device = select_largest_device(block_devices, gigabytes=MIN_SIZE_TO_ALLOW_HOME_PART) + root_device = select_disk_larger_than_or_close_to(block_devices, gigabytes=ARCH_LINUX_INSTALLED_SIZE, filter_out=[home_device]) + + log(f"Suggesting multi-disk-layout using {len(block_devices)} disks, where {root_device} will be /root and {home_device} will be /home", level=logging.DEBUG) + + layout = { + root_device.path : { + "wipe" : True, + "partitions" : [] + }, + home_device.path : { + "wipe" : True, + "partitions" : [] + }, + } + + layout[root_device.path]['partitions'].append({ + # Boot + "type" : "primary", + "start" : "1MiB", + "size" : "513MiB", + "boot" : True, + "encrypted" : False, + "format" : True, + "mountpoint" : "/boot", + "filesystem" : { + "format" : "fat32" + } + }) + layout[root_device.path]['partitions'].append({ + # Root + "type" : "primary", + "start" : "513MiB", + "encrypted" : False, + "format" : True, + "size" : "100%", + "mountpoint" : "/", + "filesystem" : { + "format" : default_filesystem + } + }) + + layout[home_device.path]['partitions'].append({ + # Home + "type" : "primary", + "encrypted" : False, + "format" : True, + "start" : "4MiB", + "size" : "100%", + "mountpoint" : "/home", + "filesystem" : { + "format" : default_filesystem + } + }) + + return layout
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