Module Name: src
Committed By: tsutsui
Date: Mon Jun 2 15:03:47 UTC 2014
Modified Files:
src/distrib/utils/sysinst/arch/alpha: md.c
Log Message:
Apply patch in PR port-alpha/48697 (with some tweaks).
Tru64 UNIX's disklabel is the same format as BSD disklabel,
and it seems Tru64 stores incorrect geometry values in
d_nsectors (sectors/track) and d_secpercyl (sectors/cylinder).
d_secperunit seems always reliable so use it to get
dlsec (sectors/track) and dlcylsize (sectors/cylinder) values.
Should be pulled up to netbsd-6 branches.
To generate a diff of this commit:
cvs rdiff -u -r1.52 -r1.53 src/distrib/utils/sysinst/arch/alpha/md.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/distrib/utils/sysinst/arch/alpha/md.c
diff -u src/distrib/utils/sysinst/arch/alpha/md.c:1.52 src/distrib/utils/sysinst/arch/alpha/md.c:1.53
--- src/distrib/utils/sysinst/arch/alpha/md.c:1.52 Sat Feb 15 19:45:43 2014
+++ src/distrib/utils/sysinst/arch/alpha/md.c Mon Jun 2 15:03:47 2014
@@ -1,4 +1,4 @@
-/* $NetBSD: md.c,v 1.52 2014/02/15 19:45:43 tsutsui Exp $ */
+/* $NetBSD: md.c,v 1.53 2014/06/02 15:03:47 tsutsui Exp $ */
/*
* Copyright 1997 Piermont Information Systems Inc.
@@ -85,19 +85,19 @@ md_get_info(void)
dlcyl = disklabel.d_ncylinders;
dlhead = disklabel.d_ntracks;
- dlsec = disklabel.d_nsectors;
sectorsize = disklabel.d_secsize;
- dlcylsize = disklabel.d_secpercyl;
+ dlsize = disklabel.d_secperunit;
/*
- * Compute whole disk size. Take max of (dlcyl*dlhead*dlsec)
- * and secperunit, just in case the disk is already labelled.
- * (If our new label's RAW_PART size ends up smaller than the
- * in-core RAW_PART size value, updating the label will fail.)
+ * Tru64 UNIX's disklabel is the same format as BSD disklabel,
+ * and it seems Tru64 stores incorrect geometry values in
+ * d_nsectors (sectors/track) and d_secpercyl (sectors/cylinder).
+ * d_secperunit seems always reliable so use it to get
+ * dlsec (sectors/track) and dlcylsize (sectors/cylinder) values.
+ * See PR/48697 for details.
*/
- dlsize = dlcyl*dlhead*dlsec;
- if (disklabel.d_secperunit > dlsize)
- dlsize = disklabel.d_secperunit;
+ dlsec = dlsize / (dlhead * dlcyl);
+ dlcylsize = dlsec * dlhead;
return 1;
}
