Date: Thu, 16 Mar 95 9:21:23 MST From: terry@cs.weber.edu (Terry Lambert) To: phk@ref.tfs.com (Poul-Henning Kamp) Cc: rgrimes@gndrsh.aac.dev.com, current@FreeBSD.org Subject: Re: newfs: sectors per cylinder (4096) disagrees with disk label (36) Message-ID: <9503161621.AA23319@cs.weber.edu> In-Reply-To: <199503160333.TAA09321@ref.tfs.com> from "Poul-Henning Kamp" at Mar 15, 95 07:33:13 pm
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> > Basically, there need to be devices that access the raw disk (machine > > specific) which are used to access the DOS partitions from user space > > and to mount (using a clone) do partitions without a device being > > dedicated to the DOS partition. > > No. The slice code will do this the right way. On device in /dev > for each logical area of the disk. I think the number of devices that would be needed to describe all extended partitions on a fully segregated drive would make this impossible. Consider: # of SCSI controllers * # of SCSI devices per bus * # of SCSI LUNs * # of partitions (regular and extended) * # of BSD slices per partition At the very least, this would require a move to 32 bit minor numbers, even if each controller got it's own major number. Terry Lambert terry@cs.weber.edu --- Any opinions in this posting are my own and not those of my present or previous employers.
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