Date: Tue, 2 Jul 2002 10:47:20 -0400 From: W Gerald Hicks <gehicks@gehicks.dyndns.org> To: "Manuel Kasper" <mk@neon1.net> Cc: freebsd-small@freebsd.org Subject: Re: Guide to reducing FreeBSD (a.k.a miniBSD :) Message-ID: <9C7B3796-8DCA-11D6-BBF1-0030657B5F1E@gehicks.dyndns.org> In-Reply-To: <000201c221d2$4c50d5d0$8c7da8c0@CNMKA>
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On Tuesday, July 2, 2002, at 10:11 AM, Manuel Kasper wrote: > Hey Jerry, > >> Very cool stuff! > > Thanks! I'll try your chroot method as soon as I get the time (so I will > know what I'm talking about before I add it as an optional step to the > guide ;). I did not yet bother to do anything like that because so far I > have done all the hacking on my "miniBSD" on a separate hard disk. I've got a work in progress here (-current based) that completely rethinks the way a small BSD is built and moves the whole build process out of src/. It patches config(8) in its local tree to provide a CONFDIR variable for the kernel Makefile allowing us to replace any of the kernel build policies implemented by kern.pre.mk, kern.post.mk, et al. Also, a change to md(4) gets rid of the fixed-size character array hardcoded into the kernel for an MD_ROOT image and allocates only as much space as the filesystem actually requires. PR kern/40017 and kern/40021 were the first versions of those patches; I've done a few fixes and tweaks since they were posted for comments a couple of days ago. To make everything convenient, incremental linking of kernel+filesystem is provided by a Makefile-driven build process. If you like I can give you a preliminary snap. It'll be ready for public consumption as soon as I document it a bit (and incorporate your MiniBSD setup :-). > You mean I just > make release PREFIX=/usr/local/release > in my /usr/src and get a full installation in there? What do you think, > would it also be possible to use the FreeBSD installation CD-ROM to do > an installation in that subdirectory (by setting "Install Root" in > sysinstall)? That would save the time of make world'ing... The Makefile in /usr/src/release spells out the details of how to do it from scratch. Hm! I've never used that nifty "Install Root" option.. Thanks! (I build releases daily here on a cron job so I've always got one ready to go). The Makefile I'm using alternatively allows the tactic of creating and using a symlinked src/ directory to achieve much of the same effect without the space requirements of a chroot system image. Patches applied to a symlink tree do not effect the "real" files behind the links. Check out the symlink-tree script in src/*/binutils for a gadget to help with creating such a tree. Cheers, Jerry Hicks > > Sorry for sending this to the list and not directly to Jerry - > Jerry, I think your mail server does not like me: > > gehicks@gehicks.dyndns.org > SMTP error from remote mailer after MAIL FROM:<mk@neon1.net>: > host gehicks.dyndns.org [66.20.181.84]: 550 5.0.0 Access denied It's a dodgy replacement for my real system which finally died last week. Guess I need to fiddle with the new setup a bit maybe :-) To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-small" in the body of the message
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