Re: Confirmation: ext2fs requires kernel rebuild?

[Chris Pepper]

At 2:06 AM -0800 2002/11/19, David Schultz wrote:

Thus spake Chris Pepper <[EMAIL PROTECTED]>:
 >	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/>

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