From: Aaron Fineman <abyxcos@gmail.com>
Date: Thu, 27 Jun 2013 19:19:25 +0000 (-0400)
Subject: Add error message for missing /etc/mtab
X-Git-Tag: zfs-0.6.2~72
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=bbb75c11908d1009b6749b797b3a763558bbaaaf;p=zfs

Add error message for missing /etc/mtab

The zpool command should not silently fail when the /etc/mtab
file does not exist.  This can occur in an initramfs environment
when the /etc/mtab file hasn't yet been generated.

Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #1541
---

diff --git a/lib/libzfs/libzfs_util.c b/lib/libzfs/libzfs_util.c
index a4e1255bb..5bb88e946 100644
--- a/lib/libzfs/libzfs_util.c
+++ b/lib/libzfs/libzfs_util.c
@@ -704,6 +704,8 @@ libzfs_init(void)
 	if ((hdl->libzfs_mnttab = fopen(MNTTAB, "r")) == NULL) {
 #endif
 		(void) close(hdl->libzfs_fd);
+		(void) fprintf(stderr,
+		    gettext("mtab is not present at %s.\n"), MNTTAB);
 		free(hdl);
 		return (NULL);
 	}