Date: Sun, 23 Jun 2013 16:27:48 -0400 From: Chip Senkbeil <chip.senkbeil@gmail.com> To: freebsd-doc@freebsd.org Subject: Re: Misprint in Architecture Handbook? Message-ID: <CAEYw2Z6Ver9Q5zsRc%2BGpfamRN_cPpMOYctP2_1d=nN-SGKeO0Q@mail.gmail.com> In-Reply-To: <CAEYw2Z7nr3H-hcXm_%2BXPA=rFVH=ZdeYdjMOSJ8OmB5tBPz7JiA@mail.gmail.com> References: <CAEYw2Z7nr3H-hcXm_%2BXPA=rFVH=ZdeYdjMOSJ8OmB5tBPz7JiA@mail.gmail.com>
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Hello, I was taking a look at the guide for SSDs and FreeBSD ( http://www.freebsd.org/doc/en/articles/solid-state/index.html) and think that there "might" be some old instructions. On the second page ( http://www.freebsd.org/doc/en/articles/solid-state/kernel.html), the instructions say to add "options MFS", "options MD_ROOT", and "pseudo-device md" to your kernel configuration. I've been searching briefly (very briefly) and came across a fairly old post ( http://lists.freebsd.org/pipermail/freebsd-stable/2005-May/015115.html) claiming that pseudo-device is no longer used or is at least deprecated. Trying to add that option gave me a syntax error; so, I'm going out on a limb to say that the option isn't supported? I later found in the generic kernel that the line "device md" is already in place with the comment "Pseudo devices." Another issue (this may or may not be a fault of my own) is regarding "options MFS" as a suggested addition to the configuration. Attempt to include the option and build the kernel yields an unknown option error. I'll be digging around, but if this is blatantly no longer the correct option, please let me know! The final option regarding MD_ROOT was already included in the generic kernel; so, I guess that's fine to still reference. I haven't taken a look at the later pages since I wasn't able to build the kernel. Since I'm not very familiar with FreeBSD, I wouldn't know what to look for in terms of outdated material. If this page is indeed out of date, it might be worth adding to the backlog to take a look at the rest of the SSD material to ensure it isn't old. Signed, Chip Senkbeil On Sun, Dec 2, 2012 at 7:03 PM, Chip Senkbeil <chip.senkbeil@gmail.com>wrote: > Hello, > > I was browsing the architecture handbook earlier today and noticed the > character devices page ( > http://www.freebsd.org/doc/en/books/arch-handbook/driverbasics-char.html) was > using '-<' instead of '->' throughout the example code to access > information through a pointer to a structure. I'm assuming this is a > mistake and wanted to report it. Hopefully this is the right place to do > so. If not, please let me know! > > Signed, > Chip Senkbeil >
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