From: Karel Zak <kzak@redhat.com>
Date: Thu, 4 Oct 2018 10:40:10 +0000 (+0200)
Subject: sfdisk: be more verbose about PMBR on --activate
X-Git-Tag: v2.33-rc2~17
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=49032ef7a47db51c3e7cf41f5a41ec2b45630717;p=thirdparty%2Futil-linux.git

sfdisk: be more verbose about PMBR on --activate

Addresses: https://github.com/karelzak/util-linux/issues/699
Signed-off-by: Karel Zak <kzak@redhat.com>
---

diff --git a/disk-utils/sfdisk.8 b/disk-utils/sfdisk.8
index 98b574e45f..ff54760ca0 100644
--- a/disk-utils/sfdisk.8
+++ b/disk-utils/sfdisk.8
@@ -100,6 +100,9 @@ bootable flag on all unspecified partitions. The special placeholder '-'
 may be used instead of the partition numbers to switch off the bootable flag
 on all partitions.
 
+The activation command is supported for MBR and PMBR only.  If GPT label is detected
+than sfdisk prints warning and automatically enter PMBR.
+
 If no \fIpartition-number\fR is specified, then list the partitions with an
 enabled flag.
 .TP
diff --git a/disk-utils/sfdisk.c b/disk-utils/sfdisk.c
index 9f031126f7..21fcfa6864 100644
--- a/disk-utils/sfdisk.c
+++ b/disk-utils/sfdisk.c
@@ -828,6 +828,8 @@ static int command_activate(struct sfdisk *sf, int argc, char **argv)
 		sf->cxt = fdisk_new_nested_context(sf->cxt, "dos");
 		if (!sf->cxt)
 			err(EXIT_FAILURE, _("cannot switch to PMBR"));
+		fdisk_info(sf->cxt, _("Activation is unsupported for GPT -- entering nested PMBR."));
+
 	} else if (!fdisk_is_label(sf->cxt, DOS))
 		errx(EXIT_FAILURE, _("toggle boot flags is supported for MBR or PMBR only"));