HEADSUP: New boot floppy stuff using splitfs (cvs commit:
jhb at FreeBSD.org
Mon Jan 26 12:05:30 PST 2004
On Monday 26 January 2004 02:58 pm, John Baldwin wrote:
> jhb 2004/01/26 11:58:38 PST
> FreeBSD src repository
> Modified files:
> release Makefile
> Overhaul our boot floppy generation system so that it scales better and
> requires minimal care and feeding for future releases.
> - Consolidate multitude of floppy related constants down to a normal
> FLOPPY set for 1.44 floppies and on PC98 a SMALLFLOPPY set for 1.2
> floppies. Also, cleanup the i386 arch section by not duplicating
> constants that are the same on both machine types (i386 and pc98).
> - Update the ZIPNSPLIT macro to generate a file chunks that will actually
> fit onto 1.44 floppies formatted with UFS1. Unfortunately, split(1)
> seems to be somewhat buggy, so the files generated are slightly larger
> than the argument passed to split.
> - Split the release.10 target into 3 targers: floppies.1, floppies.2 and
> floppies.3 that are added to EXTRAS only if NOFLOPPIES is defined.
> floppies.1 builds the install floppies, floppies.2 builds the fixit
> floppy, and floppies.3 generates the md5 sums and READMEs for the
> floppies/ directory.
> - Drop the by now largely obsolete and less useful boot.flp picture.
> This was more useful when the mfsroot lived inside the kernel rather than
> being loaded from a separate file by the loader.
> - Only build a single mfsroot containing no modules that is used for all
> installation methods.
> - Use split-file.sh to split up a gzipped GENERIC kernel into however
> many floppies it takes for the boot kernel. Currently, a stock 5.2 GENERIC
> kernel including WITNESS, INVARIANTS, DDB, and other assorted bloat fits
> onto 2 additional floppies besides the boot floppy with some room to spare.
> - If SPLIT_MFSROOT is defined, the mfsroot.gz file is similar split into
> however many floppies are needed. Currently it is not defined as the
> mfsroot.gz fits onto the current boot.flp with room to spare.
> - Add a 'makeFloppySet' target which builds a floppy set for a file that
> was split using split-file.sh.
> - Rename the doMFSKERN target to 'buildBootFloppy' as that more closely
> matches what it does now. We no longer build a custom BOOTMFS kernel
> for each boot floppy.
> - We no longer build a 2.88 boot.flp image to use with emulated CD
> booting. The non-emulated cdboot works for almost everyone who boots off of
> CD and if it doesn't work on a particular machine, the user can always boot
> from the 1.44 floppy images.
> - We no longer build a driver floppy or stick kernel modules in the
> mfsroot since we now use a stock kernel when booting from floppy.
> Revision Changes Path
> 1.835 +175 -179 src/release/Makefile
This should take care of the bikeshed over floppy install support in future
John Baldwin <jhb at FreeBSD.org> <>< http://www.FreeBSD.org/~jhb/
"Power Users Use the Power to Serve" = http://www.FreeBSD.org
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