diff options
Diffstat (limited to '')
| -rw-r--r-- | debian/patches/preserve-hidden-parts.patch | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/debian/patches/preserve-hidden-parts.patch b/debian/patches/preserve-hidden-parts.patch new file mode 100644 index 0000000..e70378b --- /dev/null +++ b/debian/patches/preserve-hidden-parts.patch @@ -0,0 +1,45 @@ +From 028c790ccdd95ef57a0b53404a32606d2e6a84ba Mon Sep 17 00:00:00 2001 +From: Ben Hutchings <ben@decadent.org.uk> +Date: Fri, 28 Mar 2014 17:09:40 +0000 +Subject: Avoid overwriting empty or hidden partitions + +It changes the DOS partition rewriting code to avoid overwriting empty +or hidden primary partitions so long as their entries aren't reused. +This makes fatresize and similar front-ends safe to use in the presence +of hidden partitions. + +Forwarded: http://lists.gnu.org/archive/html/bug-parted/2008-10/msg00005.html +Bug-Debian: http://bugs.debian.org/491797 +Last-Update: 2010-02-02 + +Patch-Name: preserve-hidden-parts.patch +--- + libparted/labels/dos.c | 11 ++++++++--- + 1 file changed, 8 insertions(+), 3 deletions(-) + +diff --git a/libparted/labels/dos.c b/libparted/labels/dos.c +index e6a01059..256f365d 100644 +--- a/libparted/labels/dos.c ++++ b/libparted/labels/dos.c +@@ -1452,13 +1452,18 @@ msdos_write (const PedDisk* disk) + if (!table->mbr_signature) + table->mbr_signature = generate_random_uint32 (); + +- memset (table->partitions, 0, sizeof (table->partitions)); +- table->magic = PED_CPU_TO_LE16 (MSDOS_MAGIC); ++ if (table->magic != PED_CPU_TO_LE16 (MSDOS_MAGIC)) { ++ memset (table->partitions, 0, sizeof (table->partitions)); ++ table->magic = PED_CPU_TO_LE16 (MSDOS_MAGIC); ++ } + + for (i=1; i<=DOS_N_PRI_PARTITIONS; i++) { + part = ped_disk_get_partition (disk, i); +- if (!part) ++ if (!part) { ++ if (table->partitions [i - 1].type != PARTITION_EMPTY) ++ memset (&table->partitions [i - 1], 0, sizeof (DosRawPartition)); + continue; ++ } + + if (!fill_raw_part (&table->partitions [i - 1], part, 0)) + goto write_fail; |