Libguestfs - Nov 2014 - [PATCH 1/3] uuid: add support to change uuid of swap partition

Signed-off-by: Hu Tao <hutao@cn.fujitsu.com>
---
 daemon/uuids.c                        | 19 +++++++++++++++++++
 sysprep/sysprep_operation_fs_uuids.ml |  2 --
 2 files changed, 19 insertions(+), 2 deletions(-)

diff --git a/daemon/uuids.c b/daemon/uuids.c
index 672f3db..431d867 100644
--- a/daemon/uuids.c
+++ b/daemon/uuids.c
@@ -29,6 +29,7 @@
 
 GUESTFSD_EXT_CMD(str_tune2fs, tune2fs);
 GUESTFSD_EXT_CMD(str_xfs_admin, xfs_admin);
+GUESTFSD_EXT_CMD(str_swaplabel, swaplabel);
 
 static int
 e2uuid (const char *device, const char *uuid)
@@ -75,6 +76,21 @@ xfsuuid (const char *device, const char *uuid)
   return 0;
 }
 
+static int
+swapuuid (const char *device, const char *uuid)
+{
+  int r;
+  CLEANUP_FREE char *err = NULL;
+
+  r = command (NULL, &err, str_swaplabel, "-U", uuid, device,
NULL);
+  if (r == -1) {
+    reply_with_error ("%s", err);
+    return -1;
+  }
+
+  return 0;
+}
+
 int
 do_set_uuid (const char *device, const char *uuid)
 {
@@ -91,6 +107,9 @@ do_set_uuid (const char *device, const char *uuid)
   else if (STREQ (vfs_type, "xfs"))
     r = xfsuuid (device, uuid);
 
+  else if (STREQ (vfs_type, "swap"))
+    r = swapuuid (device, uuid);
+
   else {
     reply_with_error ("don't know how to set the UUID for '%s'
filesystems",
                       vfs_type);
diff --git a/sysprep/sysprep_operation_fs_uuids.ml
b/sysprep/sysprep_operation_fs_uuids.ml
index ccd8ef6..b67c131 100644
--- a/sysprep/sysprep_operation_fs_uuids.ml
+++ b/sysprep/sysprep_operation_fs_uuids.ml
@@ -29,8 +29,6 @@ let rec fs_uuids_perform ~verbose ~quiet g root side_effects  
let fses = g#list_filesystems () in
   List.iter (function
   | _, "unknown" -> ()
-  | _, "swap" ->
-    (* XXX Not implemented *) ()
   | dev, typ ->
     let new_uuid = Common_utils.uuidgen ~prog () in
     try
-- 
1.9.3

Signed-off-by: Hu Tao <hutao@cn.fujitsu.com>
---
 daemon/uuids.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/daemon/uuids.c b/daemon/uuids.c
index 431d867..06b33e9 100644
--- a/daemon/uuids.c
+++ b/daemon/uuids.c
@@ -110,6 +110,11 @@ do_set_uuid (const char *device, const char *uuid)
   else if (STREQ (vfs_type, "swap"))
     r = swapuuid (device, uuid);
 
+  else if (STREQ (vfs_type, "btrfs")) {
+    reply_with_error ("btrfs filesystems' UUID cannot be
changed");
+    r = -1;
+  }
+
   else {
     reply_with_error ("don't know how to set the UUID for '%s'
filesystems",
                       vfs_type);
-- 
1.9.3

Because get-uuid looks more like a counterpart to set-uuid, and is
more likely come to mind if one knows set-uuid.

Signed-off-by: Hu Tao <hutao@cn.fujitsu.com>
---
 generator/actions.ml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/generator/actions.ml b/generator/actions.ml
index a35fe50..385b620 100644
--- a/generator/actions.ml
+++ b/generator/actions.ml
@@ -8540,6 +8540,7 @@ To find a filesystem from the label, use
C<guestfs_findfs_label>." };
   { defaults with
     name = "vfs_uuid";
     style = RString "uuid", [Mountable "mountable"], [];
+    fish_alias = ["get-uuid"];
     proc_nr = Some 254;
     tests        (let uuid = uuidgen () in [
-- 
1.9.3

On Fri, Nov 28, 2014 at 03:58:05PM +0800, Hu Tao wrote:
> Signed-off-by: Hu Tao <hutao@cn.fujitsu.com>
ACK series.  I'll push this shortly.

Rich.

-- 
Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
Read my programming and virtualization blog: http://rwmj.wordpress.com
Fedora Windows cross-compiler. Compile Windows programs, test, and
build Windows installers. Over 100 libraries supported.
http://fedoraproject.org/wiki/MinGW