Date: Fri, 07 Aug 1998 18:17:16 -0600 From: Brett Glass <brett@lariat.org> To: Doug White <dwhite@resnet.uoregon.edu> Cc: questions@FreeBSD.ORG Subject: Re: MSDOS extended partitions and "slices" Message-ID: <199808080608.AAA16222@lariat.lariat.org> In-Reply-To: <Pine.BSF.4.00.9808061222280.28098-100000@resnet.uoregon.ed u> References: <199808021131.FAA12204@lariat.lariat.org>
next in thread | previous in thread | raw e-mail | index | archive | help
At 12:24 PM 8/6/98 -0700, Doug White wrote: At 12:24 PM 8/6/98 -0700, you wrote: > >On Sun, 2 Aug 1998, Brett Glass wrote: > >> Just mounted a DOS/Windows hard disk on a system running FreeBSD 2.2.7, but >> with some difficulty. Why? Because the scheme for assigning names and >> numbers to the slices was very odd, and some of the needed nodes in /dev >> just weren't there. >> >> The C: partition of the disk came out as wd1s1, which seems reasonable. But >> D: didn't come out at wd1s2. Instead, it came out at wd1s5. (I couldn't >> make 2-4 do anything). And successive logical drives came out at 6, 7, 8, >> etc. While the error messages from the mount command showed that it >> considered the partitions to be numbered as wd1s<n> (where n went up to >> 12), they couldn't be mounted until I used /dev/MAKEDEV to create a device >> node for each one. > >This is fully normal. Extended partitions get mapped to extra slice >numbers since one extended partition can have multiple logical disks. >wd1s2 is the extended partition itself, which isn't that useful. But.... Waitaminnit. If you have an extended DOS partition with some number of logical DOS drives within it, you should REALLY see: C: wd1s1 Extended DOS partition: wd1s2 D: wd1s2a E: wd1s2b F: wd1s2c Third partition (FreeBSD, Linux, whatever): wd1s3 Fourth partition: wd1s4 This would be consistent with the actual structure. The logical DOS drives lie WITHIN the extended partition, which is one of the four possible partitions, or slices. --Brett To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?199808080608.AAA16222>