From: rpe <rpe@openbsd.org>
Date: Fri, 7 Apr 2017 21:00:42 +0000 (+0000)
Subject: Extend the information shown by diskinfo() to help to identify
X-Git-Url: http://artulab.com/gitweb/?a=commitdiff_plain;h=3edb602823f01949f13576e8665139ea62844b4c;p=openbsd

Extend the information shown by diskinfo() to help to identify
disks. Extract the disk information enclosed in <> and the NAA
from the last matching dmesg line. Useful if there are multiple
identically sized disk of the same type.

Suggested by jirib at devio dot us
Discussed with deraadt@
---

diff --git a/distrib/miniroot/install.sub b/distrib/miniroot/install.sub
index 099b6688b49..0c47f9f0a99 100644
--- a/distrib/miniroot/install.sub
+++ b/distrib/miniroot/install.sub
@@ -1,5 +1,5 @@
 #!/bin/ksh
-#	$OpenBSD: install.sub,v 1.990 2017/04/04 17:50:45 rpe Exp $
+#	$OpenBSD: install.sub,v 1.991 2017/04/07 21:00:42 rpe Exp $
 #
 # Copyright (c) 1997-2015 Todd Miller, Theo de Raadt, Ken Westerback
 # Copyright (c) 2015, Robert Peichaer <rpe@openbsd.org>
@@ -258,19 +258,26 @@ lease_value () {
 # Device related functions
 # ------------------------------------------------------------------------------
 
-# Show device name, label and size for the provided list of disk devices.
+# Show device name, info, NAA and size for the provided list of disk devices.
 # Create device nodes as needed and cleanup afterwards.
 diskinfo() {
-	local _d
+	local _d _i _n _s
 
 	for _d; do
+		# Extract disk information enclosed in <> from dmesg.
+		_i=$(dmesg | sed -n '/^'$_d' at /h;${g;s/^.*<\(.*\)>.*$/\1/p;}')
+		_i=${_i##+([[:space:],])}
+		_i=${_i%%+([[:space:],])}
+
+		# Extract Network Address Authority information from dmesg..
+		_n=$(dmesg | sed -En '/^'$_d' at /h;${g;s/^.* ([a-z0-9]+\.[a-zA-Z0-9_]+)$/\1/p;}')
+
+		# Extract disk size from disklabel output.
 		make_dev $_d
-		echo -n "$_d: "
-		disklabel -dpg $_d 2>/dev/null |
-		sed	-e '/^label: /{s,,,;s/ *$//;s/^$/<no label>/;h;d;}' \
-			-e '/.*# total bytes: \(.*\)/{s//(\1)/;H;}' \
-			-e '$!d;x;s/\n/ /'
+		_s=$(disklabel -dpg $_d 2>/dev/null | sed -n '/.*# total bytes: \(.*\)/{s//(\1)/p;}')
 		rm -f /dev/{r,}$_d?
+
+		echo "$_d: $_i $_n $_s"
 	done
 }