Package: util-linux
Version: 2.13.1-1
Severity: wishlist
Tags: patch
Hi LaMont,
a friend of mine is looking into the possibility of cloning Debian
(and other) systems automatically and stomped over swap partitions
getting assigned new UUIDs every time the new harddisk is partitioned
and swap is created.
His reseach lead him to
https://bugs.launchpad.net/ubuntu/+source/util-linux/+bug/66637
which refers to a patched version of mkswap:
http://free.nchc.org.tw/drbl-core/old/src/mkswap-uuid-0.1.0-2.tar.bz2
I'm attaching it for reference and in case the above URL becomes void.
It would be nice if you could apply this patch and send it upstream.
It's essential when partitions are to be recognised by their uuid and
not by their old device path anymore.
Regards,
Joey
--
If nothing changes, everything will remain the same. -- Barne's Law
Please always Cc to me when replying to me on the lists.
--- mkswap.c.orig 2007-08-27 15:24:14.000000000 +0200
+++ mkswap-uuid.c 2007-08-27 15:27:02.000000000 +0200
@@ -351,7 +351,7 @@ bit_test_and_clear (unsigned long *addr,
static void
usage(void) {
fprintf(stderr,
- _("Usage: %s [-c] [-v0|-v1] [-pPAGESZ] [-L label] /dev/name [blocks]\n"),
+ _("Usage: %s [-c] [-v0|-v1] [-pPAGESZ] [-L label] [-U UUID] /dev/name [blocks]\n"),
program_name);
exit(1);
}
@@ -501,6 +501,8 @@ main(int argc, char ** argv) {
char *pp;
char *opt_label = NULL;
unsigned char *uuid = NULL;
+ unsigned char *uuid_input = NULL;
+ int set_uuid = 0; // User Defined UUID, o: False, 1: True
#ifdef HAVE_LIBUUID
uuid_t uuid_dat;
#endif
@@ -546,6 +548,12 @@ main(int argc, char ** argv) {
case 'v':
version = atoi(argv[i]+2);
break;
+ case 'U':
+ set_uuid = 1;
+ uuid_input = argv[i]+2;
+ if (!*uuid_input && i+1 < argc)
+ uuid_input = argv[++i];
+ break;
default:
usage();
}
@@ -558,8 +566,14 @@ main(int argc, char ** argv) {
}
#ifdef HAVE_LIBUUID
- uuid_generate(uuid_dat);
- uuid = uuid_dat;
+ if(!set_uuid)
+ {
+ uuid_generate(uuid_dat);
+ uuid = uuid_dat;
+ } else {
+ uuid_parse(uuid_input, uuid_dat);
+ uuid = uuid_dat;
+ }
#endif
init_signature_page(); /* get pagesize */
--- mkswap.8.orig 2007-08-27 16:09:54.000000000 +0200
+++ mkswap-uuid.8 2007-09-01 03:49:49.000000000 +0200
@@ -7,7 +7,7 @@
.SH NAME
mkswap \- set up a Linux swap area
.SH SYNOPSIS
-.BI "mkswap [\-c] [\-v" N "] [\-f] [\-p " PSZ "] [\-L " label "] " device " [" size "]"
+.BI "mkswap [\-c] [\-v" N "] [\-f] [\-p " PSZ "] [\-L " label "] [\-U " uuid "] " device " [" size "]"
.SH DESCRIPTION
.B mkswap
sets up a Linux swap area on a device or in a file.
@@ -156,6 +156,10 @@ when creating the swapspace.
Version 0 (-v0) swap space format is no longer supported in 2.5+ kernels.
+.TP
+.B \-U uuid
+Specify the uuid to use.
+
.SH "SEE ALSO"
.BR fdisk (8),
.BR swapon (8)
