GNU bug report logs - #57232
[installer] ENTER in guided partitioner destroys partition table

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From: Mathieu Othacehe <othacehe <at> gnu.org>
To: Tobias Geerinckx-Rice <me <at> tobias.gr>
Cc: 57232 <at> debbugs.gnu.org
Subject: bug#57232: [installer] ENTER in guided partitioner destroys partition table
Date: Tue, 16 Aug 2022 10:51:43 +0200

[Message part 1 (text/plain, inline)]

Hey Tobias,

> What that does is immediately and without confirmation wipe the on-disc
> partition table.  And its back-up.

Oops, glad you were able to recover, I was also bitten in the past. The
attached patch adds an extra confirmation page before wiping everything,
WDYT?

Mathieu

[0001-installer-partition-Add-a-confirmation-page-before-f.patch (text/x-patch, inline)]

From 4a9c1fb1fe7f9a65b2b7d1f9e4419b1d28a8082e Mon Sep 17 00:00:00 2001
From: Mathieu Othacehe <othacehe <at> gnu.org>
Date: Tue, 16 Aug 2022 10:49:07 +0200
Subject: [PATCH 1/1] installer: partition: Add a confirmation page before
 formatting.

Fixes: <https://issues.guix.gnu.org/57232>.

* gnu/installer/newt/partition.scm (run-label-confirmation-page): New
procedure.
(run-label-page): Call the above procedure before proceeding.
---
 gnu/installer/newt/partition.scm | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/gnu/installer/newt/partition.scm b/gnu/installer/newt/partition.scm
index e7a97810ac..f11a644f92 100644
--- a/gnu/installer/newt/partition.scm
+++ b/gnu/installer/newt/partition.scm
@@ -1,5 +1,5 @@
 ;;; GNU Guix --- Functional package management for GNU
-;;; Copyright © 2018, 2019 Mathieu Othacehe <m.othacehe <at> gmail.com>
+;;; Copyright © 2018, 2019, 2022 Mathieu Othacehe <m.othacehe <at> gmail.com>
 ;;; Copyright © 2019, 2020 Ludovic Courtès <ludo <at> gnu.org>
 ;;; Copyright © 2020 Tobias Geerinckx-Rice <me <at> tobias.gr>
 ;;;
@@ -92,6 +92,15 @@ (define (device-items)
          (device (car result)))
     device))
 
+(define (run-label-confirmation-page callback)
+  (lambda (item)
+    (and (run-confirmation-page
+          (format #f (G_ "This will create a new ~a partition table, \
+all data on disk will be lost, are you sure you want to proceed?") item)
+          (G_ "Format disk?")
+          #:exit-button-procedure callback)
+         item)))
+
 (define (run-label-page button-text button-callback)
   "Run a page asking the user to select a partition table label."
   ;; Force the GPT label if UEFI is supported.
@@ -103,6 +112,8 @@ (define (run-label-page button-text button-callback)
        #:title (G_ "Partition table")
        #:listbox-items '("msdos" "gpt")
        #:listbox-item->text identity
+       #:listbox-callback-procedure
+       (run-label-confirmation-page button-callback)
        #:button-text button-text
        #:button-callback-procedure button-callback)))
 
-- 
2.37.1

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