forked from pool/parted
37 lines
1.4 KiB
Diff
37 lines
1.4 KiB
Diff
Index: parted-1.9.0/libparted/labels/dos.c
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===================================================================
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--- parted-1.9.0.orig/libparted/labels/dos.c 2009-07-29 11:31:18.000000000 +0200
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+++ parted-1.9.0/libparted/labels/dos.c 2009-07-29 11:36:43.000000000 +0200
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@@ -54,6 +54,8 @@ static const char MBR_BOOT_CODE[] = {
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#define MSDOS_MAGIC 0xAA55
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#define PARTITION_MAGIC_MAGIC 0xf6f6
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+#define AIXIPLRECID 0xc9c2d4c1 /* Value is EBCIDIC 'IBMA' */
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+
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#define PARTITION_EMPTY 0x00
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#define PARTITION_FAT12 0x01
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#define PARTITION_FAT16_SM 0x04
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@@ -193,6 +195,10 @@ msdos_probe (const PedDevice *dev)
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if (PED_LE16_TO_CPU (part_table->magic) != MSDOS_MAGIC)
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goto probe_fail;
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+ /* Is this an AIX IPL label? Then just go away. */
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+ if (PED_BE32_TO_CPU (*(unsigned int*)(part_table->boot_code)) == AIXIPLRECID)
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+ goto probe_fail;
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+
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/* If this is a FAT fs, fail here. Checking for the FAT signature
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* has some false positives; instead, do what the Linux kernel does
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* and ensure that each partition has a boot indicator that is
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@@ -1142,7 +1148,10 @@ msdos_write (const PedDisk* disk)
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ped_device_read (disk->dev, &table, 0, 1);
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- if (!table.boot_code[0]) {
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+ /* either no bootrecord at all, or AIX IPL signature ... */
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+ if ((!table.boot_code[0]) ||
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+ (PED_BE32_TO_CPU (*(unsigned int*)(table.boot_code)) == AIXIPLRECID)
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+ ) {
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memset (table.boot_code, 0, 512);
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memcpy (table.boot_code, MBR_BOOT_CODE, sizeof (MBR_BOOT_CODE));
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}
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