Date: Sat, 02 Aug 2008 00:57:19 -0600 (MDT) From: "M. Warner Losh" <imp@bsdimp.com> To: kostikbel@gmail.com Cc: fbsd2@yahoo.com, freebsd-stable@freebsd.org Subject: Re: 80 Mb / enough for 7.x? OK to delete /stand/ and /modules/ ? Message-ID: <20080802.005719.-75255160.imp@bsdimp.com> In-Reply-To: <20080802063533.GO97161@deviant.kiev.zoral.com.ua> References: <372128.56919.qm@web51502.mail.re2.yahoo.com> <20080802.002039.58462077.imp@bsdimp.com> <20080802063533.GO97161@deviant.kiev.zoral.com.ua>
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In message: <20080802063533.GO97161@deviant.kiev.zoral.com.ua>
Kostik Belousov <kostikbel@gmail.com> writes:
: > : Given recent EOL announcements, I'm trying to upgrade an ancient machine from 5.5 to 7. It has 80 Mb total in the root partition, /home/, /var/, /usr/, and /tmp/ on other partitions, and NFS mounts /usr/src, /usr/obj, and /usr/ports from a slightly newer/faster box. I've seen
: > :
: > : http://www.freebsd.org/releases/7.0R/relnotes.html and
: > : http://marc.info/?l=freebsd-stable&m=121278826119286&w=2
: > :
: > : which seem to suggest that even with INSTALL_NODEBUG during buildkernel, 7 might not fit in an 80 Mb /. Must I partition a new disk to give more space to /, or can I find more space by deleting /stand/, /modules/, and possibly /rescue/ to shoehorn a custom 7.x kernel in the available space? TIA
: >
: > Doesn't look like anybody has answered this question...
: >
: > 80MB is plenty, even for 7.x. However, you'll have to use nanobsd or
: > tinybsd to get that small. You'll likely been unable to do a 'make
: > installworld' to get this size. You'll have to create an image and
: > push it over to this machine somehow.
: >
: > In the 3.x time frame, I had FreeBSD booting with the standard scripts
: > in 13MB without compression. 4.x, 5.x and 6.x bloated these binaries
: > to about 18MB (a few more were added). I haven't built a system based
: > on 7.x with this system due to a change in employment, but expect that
: > it wouldn't be much larger than 20MB for these same files. Some
: > careful honing could reduce that a little, but maybe not a lot.
: > Typical embedded systems that I shipped were on the order of 24MB
: > without X11 and 32-60MB for those with an X11 server.
: >
: > What's this box used for?
:
: Actually, on the normal RELENG_7/i386 install (i.e. done by
: buildworld/installworld), I get
:
: Filesystem 1K-blocks Used Avail Capacity Mounted on
: /dev/ad0s1a 257998 50422 186938 21% /
: /dev/ad0s1e 4129310 143676 3655290 4% /usr
:
: Note that you must supply INSTALL_NODEBUG=yes for installkernel, and
: the numbers shown are for WITHOUT_PROFILE=yes.
:
: Amd64 takes ~230Mb for merged / and /usr, this is both due to increased
: binary sizes and lib32.
Right, the numbers I quoted were for an opt-in system like tinybsd...
They are good numbers to have at hand, since it is hard to buy flash
media that's smaller than 1GB these days...
Warner
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