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Re: MEMORY_RBFLAGS in options(4)
David Brownlee wrote:
On Wed, 17 Dec 2008, Jean-Yves Migeon wrote:
For this reason, I would like to know if it is possible to:
- rename the MEMORY_RBFLAGS option to MEMORY_DISK_RBFLAGS (to be in
sync with the rest of the MEMORY_DISK_* macros)
- make adjustments inside src/ to reflect this
- document it inside options(4) so it is easier to use it
- declare "MEMORY_RBFLAGS" as obsolete (perhaps in conf/files?)
>>>>
[snip]
>>>>
That seems very reasonable. I would go as far as to switch the
default (and update in tree md users to define MEMORY_DISK_RBFLAGS
for single user mode...
You mean switching the default to, say, RB_AUTOBOOT instead of RB_SINGLE?
Yes, exactly.
So, here are the diffs that modify the MEMORY_DISK_RBFLAGS behaviour,
and set RB_AUTOBOOT as default (was RB_SINGLE previously):
http://www.netbsd.org/~jym/RBFLAGS.diff
http://www.netbsd.org/~jym/options.4.diff
For config(5) files expecting MEMORY_DISK_RBFLAGS to be RB_SINGLE, I set
it manually inside it. I did it with following criterias:
- if MEMORY_RBFLAGS was set explicitly: keep it.
(3 files do so: evbarm/conf/ARMADILLO210, evbarm/conf/GUMSTIX and
ia64/conf/GENERIC.SKI)
- if MEMORY_DISK_HOOKS and MEMORY_DISK_IS_ROOT are set: set
MEMORY_DISK_RBFLAGS to RB_SINGLE (to match old behaviour)
(71 configs, mostly ramdisks and install kernels)
- if MEMORY_DISK_HOOKS is set alone: do not touch. If I understand the
code right, boothowto can only be overriden when MEMORY_DISK_IS_ROOT is
set, or when md_root_setconf() is called when MEMORY_DISK_DYNAMIC is set
(and with root on md0). Since neither are used in this case, I consider
that boothowto cannot be altered by RBFLAGS.
(this is the case for atari)
- if MEMORY_DISK_HOOKS and MEMORY_DISK_DYNAMIC are set: investigate.
This happens only for GENERIC i386 and amd64, so I decided _not_ to set
RBFLAGS to RB_SINGLE as it could be misleading in the config(5) file
(although this does not seem to affect GENERIC behaviour, as root is not
on md0).
Thanks for the comments and/or reviews during this snowy and cheerful
context :)
Cheers,
--
Jean-Yves Migeon
jean-yves.migeon%espci.fr@localhost
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