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[ntfs] fix creation of Windows 7 bootable USB from XP

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* When using Win7 installation ISOs, XP would return the error:
  [0x00000456] The media in the drive may have changed
* This seems to be due to unmounting of the drive before writing
  the PBR
* Also, our ms-sys/NTFS code wasn't identifying NTFS properly on XP
This commit is contained in:
Pete Batard 2012-02-24 18:51:33 +00:00
parent 352a796eff
commit b03065b1f5
3 changed files with 12 additions and 14 deletions
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6
src/ms-sys/ntfs.c
View file

@ -25,9 +25,9 @@
int is_ntfs_fs(FILE *fp)
{
char *szMagic = "NTFS";
unsigned char aucMagic[] = {'N','T','F','S',' ',' ',' ',' '};
return contains_data(fp, 0x6F, szMagic, strlen(szMagic));
return contains_data(fp, 0x03, aucMagic, sizeof(aucMagic));
} /* is_ntfs_fs */
int is_ntfs_br(FILE *fp)
@ -35,7 +35,7 @@ int is_ntfs_br(FILE *fp)
/* A "file" is probably some kind of NTFS boot record if it contains the
magic chars 0x55, 0xAA at positions 0x1FE */
unsigned char aucRef[] = {0x55, 0xAA};
unsigned char aucMagic[] = {'N','T','F','S','0','0','0','0'};
unsigned char aucMagic[] = {'N','T','F','S',' ',' ',' ',' '};
if( ! contains_data(fp, 0x1FE, aucRef, sizeof(aucRef)))
return 0;