diff options
Diffstat (limited to 'gnu/installer/newt/partition.scm')
| -rw-r--r-- | gnu/installer/newt/partition.scm | 766 |
1 files changed, 766 insertions, 0 deletions
diff --git a/gnu/installer/newt/partition.scm b/gnu/installer/newt/partition.scm new file mode 100644 index 0000000000..d4c91edc66 --- /dev/null +++ b/gnu/installer/newt/partition.scm @@ -0,0 +1,766 @@ +;;; GNU Guix --- Functional package management for GNU +;;; Copyright © 2018 Mathieu Othacehe <m.othacehe@gmail.com> +;;; +;;; This file is part of GNU Guix. +;;; +;;; GNU Guix is free software; you can redistribute it and/or modify it +;;; under the terms of the GNU General Public License as published by +;;; the Free Software Foundation; either version 3 of the License, or (at +;;; your option) any later version. +;;; +;;; GNU Guix is distributed in the hope that it will be useful, but +;;; WITHOUT ANY WARRANTY; without even the implied warranty of +;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +;;; GNU General Public License for more details. +;;; +;;; You should have received a copy of the GNU General Public License +;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>. + +(define-module (gnu installer newt partition) + #:use-module (gnu installer parted) + #:use-module (gnu installer steps) + #:use-module (gnu installer utils) + #:use-module (gnu installer newt page) + #:use-module (gnu installer newt utils) + #:use-module (guix i18n) + #:use-module (ice-9 match) + #:use-module (srfi srfi-1) + #:use-module (srfi srfi-26) + #:use-module (srfi srfi-34) + #:use-module (srfi srfi-35) + #:use-module (newt) + #:use-module (parted) + #:export (run-partioning-page)) + +(define (button-exit-action) + "Raise the &installer-step-abort condition." + (raise + (condition + (&installer-step-abort)))) + +(define (run-scheme-page) + "Run a page asking the user for a partitioning scheme." + (let* ((items + '((root . "Everything is one partition") + (root-home . "Separate /home partition"))) + (result (run-listbox-selection-page + #:info-text (G_ "Please select a partitioning scheme.") + #:title (G_ "Partition scheme") + #:listbox-items items + #:listbox-item->text cdr + #:button-text (G_ "Exit") + #:button-callback-procedure button-exit-action))) + (car result))) + +(define (draw-formatting-page) + "Draw a page to indicate partitions are being formated." + (draw-info-page + (format #f (G_ "Partition formatting is in progress, please wait.")) + (G_ "Preparing partitions"))) + +(define (run-device-page devices) + "Run a page asking the user to select a device among those in the given +DEVICES list." + (define (device-items) + (map (lambda (device) + `(,device . ,(device-description device))) + devices)) + + (let* ((result (run-listbox-selection-page + #:info-text (G_ "Please select a disk.") + #:title (G_ "Disk") + #:listbox-items (device-items) + #:listbox-item->text cdr + #:button-text (G_ "Exit") + #:button-callback-procedure button-exit-action)) + (device (car result))) + device)) + +(define (run-label-page button-text button-callback) + "Run a page asking the user to select a partition table label." + (run-listbox-selection-page + #:info-text (G_ "Select a new partition table type. \ +Be careful, all data on the disk will be lost.") + #:title (G_ "Partition table") + #:listbox-items '("msdos" "gpt") + #:listbox-item->text identity + #:button-text button-text + #:button-callback-procedure button-callback)) + +(define (run-type-page partition) + "Run a page asking the user to select a partition type." + (let* ((disk (partition-disk partition)) + (partitions (disk-partitions disk)) + (other-extended-partitions? + (any extended-partition? partitions)) + (items + `(normal ,@(if other-extended-partitions? + '() + '(extended))))) + (run-listbox-selection-page + #:info-text (G_ "Please select a partition type.") + #:title (G_ "Partition type") + #:listbox-items items + #:listbox-item->text symbol->string + #:sort-listbox-items? #f + #:button-text (G_ "Exit") + #:button-callback-procedure button-exit-action))) + +(define (run-fs-type-page) + "Run a page asking the user to select a file-system type." + (run-listbox-selection-page + #:info-text (G_ "Please select the file-system type for this partition.") + #:title (G_ "File-system type") + #:listbox-items '(ext4 btrfs fat32 swap) + #:listbox-item->text user-fs-type-name + #:sort-listbox-items? #f + #:button-text (G_ "Exit") + #:button-callback-procedure button-exit-action)) + +(define (inform-can-create-partition? user-partition) + "Return #t if it is possible to create USER-PARTITION. This is determined by +calling CAN-CREATE-PARTITION? procedure. If an exception is raised, catch it +an inform the user with an appropriate error-page and return #f." + (guard (c ((max-primary-exceeded? c) + (run-error-page + (G_ "Primary partitions count exceeded.") + (G_ "Creation error")) + #f) + ((extended-creation-error? c) + (run-error-page + (G_ "Extended partition creation error.") + (G_ "Creation error")) + #f) + ((logical-creation-error? c) + (run-error-page + (G_ "Logical partition creation error.") + (G_ "Creation error")) + #f)) + (can-create-partition? user-partition))) + +(define (prompt-luks-passwords user-partitions) + "Prompt for the luks passwords of the encrypted partitions in +USER-PARTITIONS list. Return this list with password fields filled-in." + (map (lambda (user-part) + (let* ((crypt-label (user-partition-crypt-label user-part)) + (file-name (user-partition-file-name user-part)) + (password-page + (lambda () + (run-input-page + (format #f (G_ "Please enter the password for the \ +encryption of partition ~a (label: ~a).") file-name crypt-label) + (G_ "Password required")))) + (password-confirm-page + (lambda () + (run-input-page + (format #f (G_ "Please confirm the password for the \ +encryption of partition ~a (label: ~a).") file-name crypt-label) + (G_ "Password confirmation required"))))) + (if crypt-label + (let loop () + (let ((password (password-page)) + (confirmation (password-confirm-page))) + (if (string=? password confirmation) + (user-partition + (inherit user-part) + (crypt-password password)) + (begin + (run-error-page + (G_ "Password mismatch, please try again.") + (G_ "Password error")) + (loop))))) + user-part))) + user-partitions)) + +(define* (run-partition-page target-user-partition + #:key + (default-item #f)) + "Run a page allowing the user to edit the given TARGET-USER-PARTITION +record. If the argument DEFAULT-ITEM is passed, use it to select the current +listbox item. This is used to avoid the focus to switch back to the first +listbox entry while calling this procedure recursively." + + (define (numeric-size device size) + "Parse the given SIZE on DEVICE and return it." + (call-with-values + (lambda () + (unit-parse size device)) + (lambda (value range) + value))) + + (define (numeric-size-range device size) + "Parse the given SIZE on DEVICE and return the associated RANGE." + (call-with-values + (lambda () + (unit-parse size device)) + (lambda (value range) + range))) + + (define* (fill-user-partition-geom user-part + #:key + device (size #f) start end) + "Return the given USER-PART with the START, END and SIZE fields set to the +eponym arguments. Use UNIT-FORMAT-CUSTOM to format START and END arguments as +sectors on DEVICE." + (user-partition + (inherit user-part) + (size size) + (start (unit-format-custom device start UNIT-SECTOR)) + (end (unit-format-custom device end UNIT-SECTOR)))) + + (define (apply-user-partition-changes user-part) + "Set the name, file-system type and boot flag on the partition specified +by USER-PART, if it is applicable for the partition type." + (let* ((partition (user-partition-parted-object user-part)) + (disk (partition-disk partition)) + (disk-type (disk-disk-type disk)) + (device (disk-device disk)) + (has-name? (disk-type-check-feature + disk-type + DISK-TYPE-FEATURE-PARTITION-NAME)) + (name (user-partition-name user-part)) + (fs-type (filesystem-type-get + (user-fs-type-name + (user-partition-fs-type user-part)))) + (bootable? (user-partition-bootable? user-part)) + (esp? (user-partition-esp? user-part)) + (flag-bootable? + (partition-is-flag-available? partition PARTITION-FLAG-BOOT)) + (flag-esp? + (partition-is-flag-available? partition PARTITION-FLAG-ESP))) + (when (and has-name? name) + (partition-set-name partition name)) + (partition-set-system partition fs-type) + (when flag-bootable? + (partition-set-flag partition + PARTITION-FLAG-BOOT + (if bootable? 1 0))) + (when flag-esp? + (partition-set-flag partition + PARTITION-FLAG-ESP + (if esp? 1 0))) + #t)) + + (define (listbox-action listbox-item) + (let* ((item (car listbox-item)) + (partition (user-partition-parted-object + target-user-partition)) + (disk (partition-disk partition)) + (device (disk-device disk))) + (list + item + (case item + ((name) + (let* ((old-name (user-partition-name target-user-partition)) + (name + (run-input-page (G_ "Please enter the partition gpt name.") + (G_ "Partition name") + #:default-text old-name))) + (user-partition + (inherit target-user-partition) + (name name)))) + ((type) + (let ((new-type (run-type-page partition))) + (user-partition + (inherit target-user-partition) + (type new-type)))) + ((bootable) + (user-partition + (inherit target-user-partition) + (bootable? (not (user-partition-bootable? + target-user-partition))))) + ((esp?) + (let ((new-esp? (not (user-partition-esp? + target-user-partition)))) + (user-partition + (inherit target-user-partition) + (esp? new-esp?) + (mount-point (if new-esp? + (default-esp-mount-point) + ""))))) + ((crypt-label) + (let* ((label (user-partition-crypt-label + target-user-partition)) + (new-label + (and (not label) + (run-input-page + (G_ "Please enter the encrypted label") + (G_ "Encryption label"))))) + (user-partition + (inherit target-user-partition) + (need-formatting? #t) + (crypt-label new-label)))) + ((need-formatting?) + (user-partition + (inherit target-user-partition) + (need-formatting? + (not (user-partition-need-formatting? + target-user-partition))))) + ((size) + (let* ((old-size (user-partition-size target-user-partition)) + (max-size-value (partition-length partition)) + (max-size (unit-format device max-size-value)) + (start (partition-start partition)) + (size (run-input-page + (format #f (G_ "Please enter the size of the partition.\ + The maximum size is ~a.") max-size) + (G_ "Partition size") + #:default-text (or old-size max-size))) + (size-percentage (read-percentage size)) + (size-value (if size-percentage + (nearest-exact-integer + (/ (* max-size-value size-percentage) + 100)) + (numeric-size device size))) + (end (and size-value + (+ start size-value))) + (size-range (numeric-size-range device size)) + (size-range-ok? (and size-range + (< (+ start + (geometry-start size-range)) + (partition-end partition))))) + (cond + ((and size-percentage (> size-percentage 100)) + (run-error-page + (G_ "The percentage can not be superior to 100.") + (G_ "Size error")) + target-user-partition) + ((not size-value) + (run-error-page + (G_ "The requested size is incorrectly formatted, or too large.") + (G_ "Size error")) + target-user-partition) + ((not (or size-percentage size-range-ok?)) + (run-error-page + (G_ "The request size is superior to the maximum size.") + (G_ "Size error")) + target-user-partition) + (else + (fill-user-partition-geom target-user-partition + #:device device + #:size size + #:start start + #:end end))))) + ((fs-type) + (let ((fs-type (run-fs-type-page))) + (user-partition + (inherit target-user-partition) + (fs-type fs-type)))) + ((mount-point) + (let* ((old-mount (or (user-partition-mount-point + target-user-partition) + "")) + (mount + (run-input-page + (G_ "Please enter the desired mounting point for this \ +partition. Leave this field empty if you don't want to set a mounting point.") + (G_ "Mounting point") + #:default-text old-mount + #:allow-empty-input? #t))) + (user-partition + (inherit target-user-partition) + (mount-point (and (not (string=? mount "")) + mount))))))))) + + (define (button-action) + (let* ((partition (user-partition-parted-object + target-user-partition)) + (prev-part (partition-prev partition)) + (disk (partition-disk partition)) + (device (disk-device disk)) + (creation? (freespace-partition? partition)) + (start (partition-start partition)) + (end (partition-end partition)) + (new-user-partition + (if (user-partition-start target-user-partition) + target-user-partition + (fill-user-partition-geom target-user-partition + #:device device + #:start start + #:end end)))) + ;; It the backend PARTITION has free-space type, it means we are + ;; creating a new partition, otherwise, we are editing an already + ;; existing PARTITION. + (if creation? + (let* ((ok-create-partition? + (inform-can-create-partition? new-user-partition)) + (new-partition + (and ok-create-partition? + (mkpart disk + new-user-partition + #:previous-partition prev-part)))) + (and new-partition + (user-partition + (inherit new-user-partition) + (need-formatting? #t) + (file-name (partition-get-path new-partition)) + (disk-file-name (device-path device)) + (parted-object new-partition)))) + (and (apply-user-partition-changes new-user-partition) + new-user-partition)))) + + (let* ((items (user-partition-description target-user-partition)) + (partition (user-partition-parted-object + target-user-partition)) + (disk (partition-disk partition)) + (device (disk-device disk)) + (file-name (device-path device)) + (number-str (partition-print-number partition)) + (type (user-partition-type target-user-partition)) + (type-str (symbol->string type)) + (start (unit-format device (partition-start partition))) + (creation? (freespace-partition? partition)) + (default-item (and default-item + (find (lambda (item) + (eq? (car item) default-item)) + items))) + (result + (run-listbox-selection-page + #:info-text + (if creation? + (G_ (format #f "Creating ~a partition starting at ~a of ~a." + type-str start file-name)) + (G_ (format #f "You are currently editing partition ~a." + number-str))) + #:title (if creation? + (G_ "Partition creation") + (G_ "Partition edit")) + #:listbox-items items + #:listbox-item->text cdr + #:sort-listbox-items? #f + #:listbox-default-item default-item + #:button-text (G_ "OK") + #:listbox-callback-procedure listbox-action + #:button-callback-procedure button-action))) + (match result + ((item new-user-partition) + (run-partition-page new-user-partition + #:default-item item)) + (else result)))) + +(define* (run-disk-page disks + #:optional (user-partitions '()) + #:key (guided? #f)) + "Run a page allowing to edit the partition tables of the given DISKS. If +specified, USER-PARTITIONS is a list of <user-partition> records associated to +the partitions on DISKS." + + (define (other-logical-partitions? partitions) + "Return #t if at least one of the partition in PARTITIONS list is a +logical partition, return #f otherwise." + (any logical-partition? partitions)) + + (define (other-non-logical-partitions? partitions) + "Return #t is at least one of the partitions in PARTITIONS list is not a +logical partition, return #f otherwise." + (let ((non-logical-partitions + (remove logical-partition? partitions))) + (or (any normal-partition? non-logical-partitions) + (any freespace-partition? non-logical-partitions)))) + + (define (add-tree-symbols partitions descriptions) + "Concatenate tree symbols to the given DESCRIPTIONS list and return +it. The PARTITIONS list is the list of partitions described in +DESCRIPTIONS. The tree symbols are used to indicate the partition's disk and +for logical partitions, the extended partition which includes them." + (match descriptions + (() '()) + ((description . rest-descriptions) + (match partitions + ((partition . rest-partitions) + (if (null? rest-descriptions) + (list (if (logical-partition? partition) + (string-append " ┗━ " description) + (string-append "┗━ " description))) + (cons (cond + ((extended-partition? partition) + (if (other-non-logical-partitions? rest-partitions) + (string-append "┣┳ " description) + (string-append "┗┳ " description))) + ((logical-partition? partition) + (if (other-logical-partitions? rest-partitions) + (if (other-non-logical-partitions? rest-partitions) + (string-append "┃┣━ " description) + (string-append " ┣━ " description)) + (if (other-non-logical-partitions? rest-partitions) + (string-append "┃┗━ " description) + (string-append " ┗━ " description)))) + (else + (string-append "┣━ " description))) + (add-tree-symbols rest-partitions + rest-descriptions)))))))) + + (define (skip-item? item) + (eq? (car item) 'skip)) + + (define (disk-items) + "Return the list of strings describing DISKS." + (let loop ((disks disks)) + (match disks + (() '()) + ((disk . rest) + (let* ((device (disk-device disk)) + (partitions (disk-partitions disk)) + (partitions* + (filter-map + (lambda (partition) + (and (not (metadata-partition? partition)) + (not (small-freespace-partition? device + partition)) + partition)) + partitions)) + (descriptions (add-tree-symbols + partitions* + (partitions-descriptions partitions* + user-partitions))) + (partition-items (map cons partitions* descriptions))) + (append + `((,disk . ,(device-description device disk)) + ,@partition-items + ,@(if (null? rest) + '() + '((skip . "")))) + (loop rest))))))) + + (define (remove-user-partition-by-partition user-partitions partition) + "Return the USER-PARTITIONS list with the record with the given PARTITION +object removed. If PARTITION is an extended partition, also remove all logical +partitions from USER-PARTITIONS." + (remove (lambda (p) + (let ((cur-partition (user-partition-parted-object p))) + (or (equal? cur-partition partition) + (and (extended-partition? partition) + (logical-partition? cur-partition))))) + user-partitions)) + + (define (remove-user-partition-by-disk user-partitions disk) + "Return the USER-PARTITIONS list with the <user-partition> records located +on given DISK removed." + (remove (lambda (p) + (let* ((partition (user-partition-parted-object p)) + (cur-disk (partition-disk partition))) + (equal? cur-disk disk))) + user-partitions)) + + (define (update-user-partitions user-partitions new-user-partition) + "Update or insert NEW-USER-PARTITION record in USER-PARTITIONS list +depending if one of the <user-partition> record in USER-PARTITIONS has the +same PARTITION object as NEW-USER-PARTITION." + (let* ((partition (user-partition-parted-object new-user-partition)) + (user-partitions* + (remove-user-partition-by-partition user-partitions + partition))) + (cons new-user-partition user-partitions*))) + + (define (button-ok-action) + "Commit the modifications to all DISKS and return #t." + (for-each (lambda (disk) + (disk-commit disk)) + disks) + #t) + + (define (listbox-action listbox-item) + "A disk or a partition has been selected. If it's a disk, ask for a label +to create a new partition table. If it is a partition, propose the user to +edit it." + (let ((item (car listbox-item))) + (cond + ((disk? item) + (let ((label (run-label-page (G_ "Back") (const #f)))) + (if label + (let* ((device (disk-device item)) + (new-disk (mklabel device label)) + (commit-new-disk (disk-commit new-disk)) + (other-disks (remove (lambda (disk) + (equal? disk item)) + disks)) + (new-user-partitions + (remove-user-partition-by-disk user-partitions item))) + (disk-destroy item) + `((disks . ,(cons new-disk other-disks)) + (user-partitions . ,new-user-partitions))) + `((disks . ,disks) + (user-partitions . ,user-partitions))))) + ((partition? item) + (let* ((partition item) + (disk (partition-disk partition)) + (device (disk-device disk)) + (existing-user-partition + (find-user-partition-by-parted-object user-partitions + partition)) + (edit-user-partition + (or existing-user-partition + (partition->user-partition partition)))) + `((disks . ,disks) + (user-partitions . ,user-partitions) + (edit-user-partition . ,edit-user-partition))))))) + + (define (hotkey-action key listbox-item) + "The DELETE key has been pressed on a disk or a partition item." + (let ((item (car listbox-item)) + (default-result + `((disks . ,disks) + (user-partitions . ,user-partitions)))) + (cond + ((disk? item) + (let* ((device (disk-device item)) + (file-name (device-path device)) + (info-text + (format #f (G_ "Are you sure you want to delete everything on disk ~a?") + file-name)) + (result (choice-window (G_ "Delete disk") + (G_ "OK") + (G_ "Exit") + info-text))) + (case result + ((1) + (disk-delete-all item) + `((disks . ,disks) + (user-partitions + . ,(remove-user-partition-by-disk user-partitions item)))) + (else + default-result)))) + ((partition? item) + (if (freespace-partition? item) + (run-error-page (G_ "You cannot delete a free space area.") + (G_ "Delete partition")) + (let* ((disk (partition-disk item)) + (number-str (partition-print-number item)) + (info-text + (format #f (G_ "Are you sure you want to delete partition ~a?") + number-str)) + (result (choice-window (G_ "Delete partition") + (G_ "OK") + (G_ "Exit") + info-text))) + (case result + ((1) + (let ((new-user-partitions + (remove-user-partition-by-partition user-partitions + item))) + (disk-delete-partition disk item) + `((disks . ,disks) + (user-partitions . ,new-user-partitions)))) + (else + default-result)))))))) + + (let* ((info-text (G_ "You can change a disk's partition table by \ +selecting it and pressing ENTER. You can also edit a partition by selecting it \ +and pressing ENTER, or remove it by pressing DELETE. To create a new \ +partition, select a free space area and press ENTER. + +At least one partition must have its mounting point set to '/'.")) + (guided-info-text (format #f (G_ "This is the proposed \ +partitioning. It is still possible to edit it or to go back to install menu \ +by pressing the Exit button.~%~%"))) + (result + (run-listbox-selection-page + #:info-text (if guided? + (string-append guided-info-text info-text) + info-text) + + #:title (if guided? + (G_ "Guided partitioning") + (G_ "Manual partitioning")) + #:info-textbox-width 70 + #:listbox-items (disk-items) + #:listbox-item->text cdr + #:sort-listbox-items? #f + #:skip-item-procedure? skip-item? + #:allow-delete? #t + #:button-text (G_ "OK") + #:button-callback-procedure button-ok-action + #:button2-text (G_ "Exit") + #:button2-callback-procedure button-exit-action + #:listbox-callback-procedure listbox-action + #:hotkey-callback-procedure hotkey-action))) + (if (eq? result #t) + (let ((user-partitions-ok? + (guard + (c ((no-root-mount-point? c) + (run-error-page + (G_ "No root mount point found.") + (G_ "Missing mount point")) + #f)) + (check-user-partitions user-partitions)))) + (if user-partitions-ok? + (begin + (for-each (cut disk-destroy <>) disks) + user-partitions) + (run-disk-page disks user-partitions + #:guided? guided?))) + (let* ((result-disks (assoc-ref result 'disks)) + (result-user-partitions (assoc-ref result + 'user-partitions)) + (edit-user-partition (assoc-ref result + 'edit-user-partition)) + (can-create-partition? + (and edit-user-partition + (inform-can-create-partition? edit-user-partition))) + (new-user-partition (and edit-user-partition + can-create-partition? + (run-partition-page + edit-user-partition))) + (new-user-partitions + (if new-user-partition + (update-user-partitions result-user-partitions + new-user-partition) + result-user-partitions))) + (run-disk-page result-disks new-user-partitions + #:guided? guided?))))) + +(define (run-partioning-page) + "Run a page asking the user for a partitioning method." + (define (run-page devices) + (let* ((items + '((entire . "Guided - using the entire disk") + (entire-encrypted . "Guided - using the entire disk with encryption") + (manual . "Manual"))) + (result (run-listbox-selection-page + #:info-text (G_ "Please select a partitioning method.") + #:title (G_ "Partitioning method") + #:listbox-items items + #:listbox-item->text cdr + #:button-text (G_ "Exit") + #:button-callback-procedure button-exit-action)) + (method (car result))) + (cond + ((or (eq? method 'entire) + (eq? method 'entire-encrypted)) + (let* ((device (run-device-page devices)) + (disk-type (disk-probe device)) + (disk (if disk-type + (disk-new device) + (let* ((label (run-label-page + (G_ "Exit") + button-exit-action)) + (disk (mklabel device label))) + (disk-commit disk) + disk))) + (scheme (symbol-append method '- (run-scheme-page))) + (user-partitions (append + (auto-partition disk #:scheme scheme) + (create-special-user-partitions + (disk-partitions disk))))) + (run-disk-page (list disk) user-partitions + #:guided? #t))) + ((eq? method 'manual) + (let* ((disks (filter-map disk-new devices)) + (user-partitions (append-map + create-special-user-partitions + (map disk-partitions disks))) + (result-user-partitions (run-disk-page disks + user-partitions))) + result-user-partitions))))) + + (init-parted) + (let* ((non-install-devices (non-install-devices)) + (user-partitions (run-page non-install-devices)) + (user-partitions-with-pass (prompt-luks-passwords + user-partitions)) + (form (draw-formatting-page))) + ;; Make sure the disks are not in use before proceeding to formatting. + (free-parted non-install-devices) + (format-user-partitions user-partitions-with-pass) + (destroy-form-and-pop form) + user-partitions)) |