Date: Wed, 20 Nov 2002 22:25:07 -0500 From: Chris Pepper <pepper@reppep.com> To: David Schultz <dschultz@uclink.Berkeley.EDU> Cc: freebsd-questions@FreeBSD.ORG Subject: Re: Confirmation: ext2fs requires kernel rebuild? Message-ID: <p05200f24ba0073e6b323@[66.92.104.201]> In-Reply-To: <20021119100625.GC679@HAL9000.homeunix.com> References: <p05200f1ab9ff72b26ae1@[66.92.104.201]> <20021119100625.GC679@HAL9000.homeunix.com>
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At 2:06 AM -0800 2002/11/19, David Schultz wrote: >Thus spake Chris Pepper <pepper@reppep.com>: > > I'm trying to get at a file on an ext2fs slice. I'm a bit >> confused about kernel recompiles vs. KLDs for Linux compatibility, >> though. Am I reading correctly at > > <http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/linuxemu.html>; >> & <http://www.seabug.org/archive/2000-05/msg00086.html>, that I can >> run Linux applications with a single command or rc.conf entry, but >> accessing files on ext2 file systems requires a kernel rebuild? >> >> This seems a bit backwards -- is anyone aware of work to make >> ext2fs a standard module, so it can be loaded under GENERIC? > >Running Linux binaries and using Linux filesystems are two >completely different things. To to the former, and the >appropriate rc.conf entry and install ports/emulators/linux_base >as described in the Handbook. To use ext2fs, you can either add >the option EXT2FS to your kernel config to compile it statically >into your kernel, or you can load the ext2fs module dynamically, >even into GENERIC. To do the latter, the module must exist; >it will be created if you make the kernel with -DWANT_EXT2FS_MODULE. >It is also installed by sysinstall, IIRC. David, I know they're distinct, but it's silly for a discussion of Linux applications to ignore the possibility of those apps residing on a Linux filesystem. I couldn't find ext2fs documented anywhere, which is the first issue. The second is adding a link & comment to the LABI chapter. Thanks for the tip -- I used "WANT_EXT2FS_MODULE=TRUE" in /etc/make.conf, which will be persistent. I think if I ever need to use it just one time in the future, I'll try "cd /usr/src/sys/modules/ext2fs; make install", which looks a bit easier to find now that I know what to look for. Interestingly, I don't have a copy from sysinstall, and I never manually removed it. Thanks, Chris Pepper -- Chris Pepper: <http://www.reppep.com/~pepper/>; Rockefeller University: <http://www.rockefeller.edu/>; To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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