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Index: lib/geom/part/gpart.8
===================================================================
--- lib/geom/part/gpart.8
+++ lib/geom/part/gpart.8
@@ -24,7 +24,7 @@
.\"
.\" $FreeBSD$
.\"
-.Dd September 3, 2019
+.Dd October 30, 2019
.Dt GPART 8
.Os
.Sh NAME
@@ -1260,6 +1260,14 @@
recalculate the user-specified offset and size for alignment with the CHS
geometry.
Otherwise the values will be left unchanged.
+.It Va kern.geom.part.separator : No ""
+Specify an optional separator that will be inserted between the GEOM name
+and partition name.
+This variable is a
+.Xr loader 8
+tunable.
+Note that setting this variable may break software which assumes a particular
+naming scheme.
.El
.Sh EXIT STATUS
Exit status is 0 on success, and 1 if the command fails.
Index: sys/geom/part/g_part.h
===================================================================
--- sys/geom/part/g_part.h
+++ sys/geom/part/g_part.h
@@ -228,6 +228,8 @@
int g_part_modevent(module_t, int, struct g_part_scheme *);
+extern char g_part_separator[];
+
#define G_PART_SCHEME_DECLARE(name) \
static int name##_modevent(module_t mod, int tp, void *d) \
{ \
Index: sys/geom/part/g_part.c
===================================================================
--- sys/geom/part/g_part.c
+++ sys/geom/part/g_part.c
@@ -147,6 +147,10 @@
SYSCTL_UINT(_kern_geom_part, OID_AUTO, allow_nesting,
CTLFLAG_RWTUN, &allow_nesting, 0,
"Allow additional levels of nesting");
+char g_part_separator[MAXPATHLEN] = "";
+SYSCTL_STRING(_kern_geom_part, OID_AUTO, separator,
+ CTLFLAG_RDTUN, &g_part_separator, sizeof(g_part_separator),
+ "Partition name separator");
/*
* The GEOM partitioning class.
Index: sys/geom/part/g_part_if.m
===================================================================
--- sys/geom/part/g_part_if.m
+++ sys/geom/part/g_part_if.m
@@ -48,7 +48,7 @@
{
char buf[32];
- sbuf_printf(sb, "%s%s", pfx,
+ sbuf_printf(sb, "%s%s%s", pfx, g_part_separator,
G_PART_NAME(table, entry, buf, sizeof(buf)));
}

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