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qemu
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preserve partition table when using -linux option 

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@716 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
bellard 2004-04-07 21:30:08 +00:00
parent 52302d7274
commit 41b9be476c
1 changed files with 6 additions and 0 deletions
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6
hw/pc.c
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@ -313,6 +313,7 @@ void pc_init(int ram_size, int vga_ram_size, int boot_device,
if (linux_boot) {
uint8_t bootsect[512];
uint8_t old_bootsect[512];
if (bs_table[0] == NULL) {
fprintf(stderr, "A disk image must be given for 'hda' when booting a Linux kernel\n");
@ -326,6 +327,11 @@ void pc_init(int ram_size, int vga_ram_size, int boot_device,
exit(1);
}
if (bdrv_read(bs_table[0], 0, old_bootsect, 1) >= 0) {
/* copy the MSDOS partition table */
memcpy(bootsect + 0x1be, old_bootsect + 0x1be, 0x40);
}
bdrv_set_boot_sector(bs_table[0], bootsect, sizeof(bootsect));
/* now we can load the kernel */