From: Karel Zak <kzak@redhat.com>
Date: Mon, 28 Jan 2008 11:52:04 +0000 (+0100)
Subject: umount: add hint about lsof & fuser
X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ff83f99ef6b8adc10a729ac86d4cbf1179166776;p=util-linux

umount: add hint about lsof & fuser

This patch adds a hint about lsof and fuser to the "device is busy"
error message.

Addresses-Red-Hat-Bugzilla: #145844
Signed-off-by: Karel Zak <kzak@redhat.com>
---

diff --git a/mount/umount.c b/mount/umount.c
index 9690f2ac..5b939879 100644
--- a/mount/umount.c
+++ b/mount/umount.c
@@ -152,7 +152,10 @@ static void complain(int err, const char *dev) {
     case EBUSY:
      /* Let us hope fstab has a line "proc /proc ..."
 	and not "none /proc ..."*/
-      error (_("umount: %s: device is busy"), dev); break;
+      error (_("umount: %s: device is busy.\n"
+	       "        (In some cases useful info about processes that use\n"
+	       "         the device is found by lsof(8) or fuser(1))"), dev);
+      break;
     case ENOENT:
       error (_("umount: %s: not found"), dev); break;
     case EPERM: