Em 20-05-2010 15:44, Liam Proven escreveu: > > You have been lucky. I have seen many incorrectly-partitioned systems > with multiple primaries where some drives were not visible, on various > versions of MS-DOS and up to Windows 95.
Not Lucky, just hard work. Partitions were invented without entented partitions, so it worked from the first... > It's not a good idea; unpredictable things can happen, such as writing > to the wrong "C" drive and causing corruption. I didn't say that it is easy ;) >> The rules of letter attibuting are very strange: >> 1) the first (sometives the active) partition of each drive >> 2) all extended partitions from each drive at a time. There were issues >> as to sequences in recurrent extended partitions. >> 3) all remaining primary partitions of each drive. > > Wrong way round. > > It is: > - enumerate all primaries, drive by physical drive Not at all. > - then enumerate all logical drives on each physical drive, stepping > through the drives as each is exhausted Ok > It is logical but confusing. Win7 no longer does this at all - the > boot drive is always C; That is a definition: boot is allways C: > if there was an existing DOS-level C, it seems to disappear. There are lots of bugs in this area. FYI: I started using PC-DOS 1.1... so I have a long history of dos and don'ts... Alain ------------------------------------------------------------------------------ _______________________________________________ Freedos-user mailing list Freedos-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/freedos-user
