Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!ncar!tank!eecae!netnews.upenn.edu!eniac.seas.upenn.edu!silver From: silver@eniac.seas.upenn.edu (Andy Silverman) Newsgroups: comp.sys.ibm.pc Subject: Re: DOS Structure on Hard Disk - A Question Keywords: DOS, boot record, FAT, confusion, cold fusion Message-ID: <14039@netnews.upenn.edu> Date: 2 Sep 89 20:30:11 GMT References: <1626@cod.NOSC.MIL> <180@bmers58.UUCP> Sender: news@netnews.upenn.edu Reply-To: silver@eniac.seas.upenn.edu.UUCP (Andy Silverman) Organization: University of Pennsylvania Lines: 20 In article <180@bmers58.UUCP> mlord@bmers58.UUCP (Mark Lord) writes: >Congratulations, you have just discovered the partition table, which will >preceed the boot sectors on any drive with multiple partitions. If your >disk had only a single partition (ie. a 32meg drive with NO partition table) >you would find the boot sectors where you expected them: first on the disk. This is slightly inaccurate. There is a partition table located on EVERY hard disk, whether there is only one partition or not. If there is only one partition then there will be only one entry in it, but it will be there all the same. Otherwise how would the controller figure out whether the first sector of the drive was a table or a boot sector? (The table is not made up of executable code.) +-----------------------+-----------------------------------------+ | Andy Silverman | Internet: silver@eniac.seas.upenn.edu | | "All stressed out and | Compu$erve: 72261,531 | | nobody to choke." | | +-----------------------+-----------------------------------------+