diff options
| -rw-r--r-- | generator/generator_utils.ml | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/generator/generator_utils.ml b/generator/generator_utils.ml index f62b1956..4180c0d6 100644 --- a/generator/generator_utils.ml +++ b/generator/generator_utils.ml @@ -55,6 +55,14 @@ let string_of_errcode = function *) let uuidgen () = let s = Digest.to_hex (Digest.file "generator/generator_actions.ml") in + + (* In util-linux <= 2.19, mkswap -U cannot handle the first byte of + * the UUID being zero, so we artificially rewrite such UUIDs. + * http://article.gmane.org/gmane.linux.utilities.util-linux-ng/4273 + *) + if s.[0] = '0' && s.[1] = '0' then + s.[0] <- '1'; + String.sub s 0 8 ^ "-" ^ String.sub s 8 4 ^ "-" ^ String.sub s 12 4 ^ "-" |