hack(cgpt): use Root instead of the Kernel partitions hack up the code a bit to set priorities on root partitions: $ cgpt show -i 4 -P /dev/sda 1 $ cgpt show -i 5 -P /dev/sda 2 $ cgpt prioritize -i 4 /dev/sda $ cgpt show -i 4 -P /dev/sda 2

diff --git a/cgpt/cgpt.h b/cgpt/cgpt.h
index e55c32f..e871765 100644
--- a/cgpt/cgpt.h
+++ b/cgpt/cgpt.h

@@ -116,6 +116,7 @@
 
 int IsUnused(struct drive *drive, int secondary, uint32_t index);
 int IsKernel(struct drive *drive, int secondary, uint32_t index);
+int IsRoot(struct drive *drive, int secondary, uint32_t index);
 
 // For usage and error messages.
 extern const char* progname;

diff --git a/cgpt/cgpt_common.c b/cgpt/cgpt_common.c
index 13ea522..0055135 100644
--- a/cgpt/cgpt_common.c
+++ b/cgpt/cgpt_common.c

@@ -737,6 +737,12 @@
   return GuidEqual(&entry->type, &guid_chromeos_kernel);
 }
 
+int IsRoot(struct drive *drive, int secondary, uint32_t index) {
+  GptEntry *entry;
+  entry = GetEntry(&drive->gpt, secondary, index);
+  return GuidEqual(&entry->type, &guid_chromeos_rootfs);
+}
+
 
 #define TOSTRING(A) #A
 const char *GptError(int errnum) {

diff --git a/cgpt/cgpt_prioritize.c b/cgpt/cgpt_prioritize.c
index 4502306..5edf968 100644
--- a/cgpt/cgpt_prioritize.c
+++ b/cgpt/cgpt_prioritize.c

@@ -99,7 +99,7 @@
   int gpt_retval;
   uint32_t index;
   uint32_t max_part;
-  int num_kernels;
+  int num_root;
   int i,j;
   group_list_t *groups;
 
@@ -125,24 +125,24 @@
     }
     index = params->set_partition - 1;
     // it must be a kernel
-    if (!IsKernel(&drive, PRIMARY, index)) {
+    if (!IsRoot(&drive, PRIMARY, index)) {
       Error("partition %d is not a ChromeOS kernel\n", params->set_partition);
       goto bad;
     }
   }
 
   // How many kernel partitions do I have?
-  num_kernels = 0;
+  num_root = 0;
   for (i = 0; i < max_part; i++) {
-    if (IsKernel(&drive, PRIMARY, i))
-      num_kernels++;
+    if (IsRoot(&drive, PRIMARY, i))
+      num_root++;
   }
 
-  if (num_kernels) {
+  if (num_root) {
     // Determine the current priority groups
-    groups = NewGroupList(num_kernels);
+    groups = NewGroupList(num_root);
     for (i = 0; i < max_part; i++) {
-      if (!IsKernel(&drive, PRIMARY, i))
+      if (!IsRoot(&drive, PRIMARY, i))
         continue;
 
       priority = GetPriority(&drive, PRIMARY, i);

diff --git a/firmware/lib/cgptlib/cgptlib.c b/firmware/lib/cgptlib/cgptlib.c
index 53b6992..293c69c 100644
--- a/firmware/lib/cgptlib/cgptlib.c
+++ b/firmware/lib/cgptlib/cgptlib.c

@@ -48,7 +48,7 @@
 		for (i = gpt->current_kernel + 1;
 		     i < header->number_of_entries; i++) {
 			e = entries + i;
-			if (!IsKernelEntry(e))
+			if (!IsRoot(e))
 				continue;
 			VBDEBUG(("GptNextKernelEntry looking at same prio "
 				 "partition %d\n", i+1));