Re: Curious minds .. etc
On 22 Oct 2021, at 14.05, Konstantin Belousov wrote: > > On Fri, Oct 22, 2021 at 01:07:47AM -0700, Julian Elischer wrote: >> Several years ago (OK, maybe 12 years ago) I did an experiment where I >> unpacked a >> freebsd 1.1 (or maybe 2.0?) image into a subdirectory, and after installing >> various >> compat packagesand options and a.out support and changing MAX_PID to be >> 6, I was able to >> chroot to it and do a "make world". Things were stupidly fast. >> >> >> Has anyone been able to do such a thing in recent years? One wonders what >> options one >> would need and what the oldest Version we could run in this way was.. > > Yes, I added support for a.out to amd64, and wrote man page which documents > all details that are relevant there, see aout(4). > I have a 2.2.5 vbox image, with 256M mem and 1CPU (crashes with SMP) does buildworld in just under 4 minutes on 1 core from a i9 9900k. -- Søren Schmidt s...@deepcore.dk / s...@freebsd.org "So much code to hack, so little time"
Re: Curious minds .. etc
On Fri, Oct 22, 2021 at 01:07:47AM -0700, Julian Elischer wrote: > Several years ago (OK, maybe 12 years ago) I did an experiment where I > unpacked a > freebsd 1.1 (or maybe 2.0?) image into a subdirectory, and after installing > various > compat packagesand options and a.out support and changing MAX_PID to be > 6, I was able to > chroot to it and do a "make world". Things were stupidly fast. > > > Has anyone been able to do such a thing in recent years? One wonders what > options one > would need and what the oldest Version we could run in this way was.. Yes, I added support for a.out to amd64, and wrote man page which documents all details that are relevant there, see aout(4).
Re: Curious minds .. etc
On Fri, 22 Oct 2021 01:07:47 -0700 Julian Elischer wrote: > Several years ago (OK, maybe 12 years ago) I did an experiment where I > unpacked a > freebsd 1.1 (or maybe 2.0?) image into a subdirectory, and after installing > various > compat packagesand options and a.out support and changing MAX_PID to be > 6, I was able to > chroot to it and do a "make world". Things were stupidly fast. > > > Has anyone been able to do such a thing in recent years? One wonders what > options one > would need and what the oldest Version we could run in this way was.. > Well, there's still a /usr/ports/misc/compat4x, which is the oldest version supported. So that could still work, although it's not obvious whether it will work with e.g. FBSD-14. The most recent compat version is for 12x. The good old days, when the kernel was on the order of 90kB and 256kB of memory was a lot and big disks had one or two hundred MB. -- Gary Jennejohn
Curious minds .. etc
Several years ago (OK, maybe 12 years ago) I did an experiment where I unpacked a freebsd 1.1 (or maybe 2.0?) image into a subdirectory, and after installing various compat packagesand options and a.out support and changing MAX_PID to be 6, I was able to chroot to it and do a "make world". Things were stupidly fast. Has anyone been able to do such a thing in recent years? One wonders what options one would need and what the oldest Version we could run in this way was.. J
