On Fri, Oct 30, 2009 at 4:06 PM, Otto Moerbeek <[email protected]> wrote: > The disklabel is written at the start of the disk and you're > overwriting it with the newfs_msdos command. You should fdisk the > disk first, and reserve a separate MBR partition for MSDOS. > > See the FAQ.
Thank you all for responses -- I have a better idea now. The only thing that I noticed was newfs_msdos wipes out the entire disklabel as well as any fdisk created partitions and gobbles up the entire disk. I guess what James Hartley said in this thread is correct -- Windows must be used to create the DOS partition, and then disklabel to get the OpenBSD one. -Amarendra > > -Otto > > On Fri, Oct 30, 2009 at 03:30:23PM +0530, Amarendra Godbole wrote: > >> Hi, >> >> I have a 320G Buffalo Ministation external USB drive, which I wish to >> partition so that it contains 1 DOS and 1 native OpenBSD (FFS) >> partition. Using disklabel, I could created these: >> > p >> OpenBSD area: 0-625142448; size: 625142448; free: 0 >> # size offset fstype [fsize bsize cpg] >> c: 625142448 0 unused >> h: 310557618 314584830 4.2BSD 2048 16384 1 >> i: 314584830 0 MSDOS >> > >> >> Now I format sd1h with newfs and things go fine. But when I format >> sd1i with newfs_msdos, I see the disklabel changed to something like >> this: >> OpenBSD_46$ sudo disklabel -E sd1 >> Label editor (enter '?' for help at any prompt) >> > p >> OpenBSD area: 0-625142448; size: 625142448; free: 0 >> # size offset fstype [fsize bsize cpg] >> c: 625142448 0 unused >> i: 625142448 0 MSDOS >> > >> >> So the FFS partition is gone. I want the USB disk to be also used on >> Windows XP, so the MSDOS partition. I am not sure if this is possible, >> since disklabel is OpenBSD specific, and XP may not be able to see it >> anyways. I am missing something here for sure, but cannot figure out >> what. Would appreciate a pointer. Thanks. >> >> Also, is there another way to achieve this? (I was unable to create a >> MSDOS partition from Windows XP, as it only allows NTFS now). >> >> -Amarendra
