From: Karel Zak <kzak@redhat.com>
Date: Thu, 15 Apr 2021 12:43:15 +0000 (+0200)
Subject: fdisk: warn if disk in use
X-Git-Tag: v2.37-rc2~64
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=dee0c29c6f9fa72a8d19c2336ea8b7f8cac2c81e;p=thirdparty%2Futil-linux.git

fdisk: warn if disk in use

Fixes: https://github.com/karelzak/util-linux/issues/1278
Signed-off-by: Karel Zak <kzak@redhat.com>
---

diff --git a/disk-utils/fdisk.c b/disk-utils/fdisk.c
index 4e790c1b3e..af2afed3e3 100644
--- a/disk-utils/fdisk.c
+++ b/disk-utils/fdisk.c
@@ -1140,6 +1140,12 @@ int main(int argc, char **argv)
 		if (rc)
 			err(EXIT_FAILURE, _("cannot open %s"), devname);
 
+		if (fdisk_device_is_used(cxt))
+			fdisk_warnx(cxt, _(
+			"This disk is currently in use - repartitioning is probably a bad idea.\n"
+			"It's recommended to umount all file systems, and swapoff all swap\n"
+			"partitions on this disk.\n"));
+
 		fflush(stdout);
 
 		if (!fdisk_is_readonly(cxt)