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NFS and minix?

Hi,

I have a general question about Minix's support for NFS: is there any? I am interested in getting Minix
running on a disk-less SPARC, which will require NFS (and maybe porting to SPARC?).

So, does Minix support:
a) NFS
b) Disk-less booting
c) SPARC (I see only x86, so probably not)
?

How hard would these be to add to Minix for someone who knows C programming and has some light exposure to OS
internals? Where would this person [me?] start?

Thanks,
Gary Thorpe

Future impact of userspace drivers

Hello,

This question is not directly MINIX-related, but it seemed this would
be the best place to ask this question.

Userspace drivers come with a performance hit. My question is, do you
see this hit increasing or decreasing as time passes, and why? I know
performance is way overvalued compared with stability, etc - but
please, humor me :)

Thanks!

--

-- 
     Ranguvar Foeseeker
LLP Insanity FAEAA

Porting Arm 7 Atmel AT91sam7se512

Hi friends

Any body  working on Minix3 port to Arm 7 AT91samxxxx boards?

I am presently using Linux on the said boards. Can someone help me in porting?

regards

Nataraj

[Fwd: unable to reboot while updating to minix 3_1_3b]

I found the following post in the comp.os.minix group from Feb 25, 2007 
that solves the problem I was running into.

http://groups.google.com/group/comp.os.minix/tree/browse_frm/thread/f4123e884b05aeaf/e8ed975a32c00d0e?rnum=1&q=drivers.conf&_done=%2Fgroup%2Fcomp.os.minix%2Fbrowse_frm%2Fthread%2Ff4123e884b05aeaf%2F5678ed98a1691a83%3Flnk%3Dgst%26q%3Ddrivers.conf%26#doc_5678ed98a1691a83

unable to reboot while updating to minix 3_1_3b

Hi,

I'm sending this to this mailing list along with comp.os.minix for 
greater visibility.  If this is inappropriate use of this mailing list, 
please let me know.

Thanks.

- Dave

I have been trying to build minix 3_1_3b in a vmware minix 3_1_2
envinronment.  I follow the instructions in the UPDATING file up to
the reboot step successfully.  However the reboot fails.  The
instructions say to use " reboot -x 'unset image; boot' " but I have
doubts about this since the man page does not say anything about a "-
x" option for reboot.  Here are links to screenshots of my vmware
window taken before and after the reboot:

before reboot:
http://picasaweb.google.com/to.dave.c/MinixScreenShots/photo#52259186...

after reboot:
http://picasaweb.google.com/to.dave.c/MinixScreenShots/photo#52259186...

The significant message after rebooting appears to be:

/dev/c1d0: No such file or directory
Warning: couldn't get status of device

If anyone can give me any pointers on what to try next I would very
much appreciate it.

Thanks in advance

 Dave
-----------------------------------------------------------------------------------------------------------------

The UPDATING file is at:

https://gforge.cs.vu.nl/plugins/scmsvn/viewcvs.php/tags/r3_1_3b/docs/UPDATING?rev=3053&root=minix&view=markup

the UPDATING file contents:

20060818:
        You need flex in your $PATH, which has become part of the base
        system. This needs bigger binaries.
        If you don't have flex yet, you can compile it first by doing:
        # cp /usr/src/etc/binary_sizes* /etc
        # binsizes big
        # cd /usr/src/commands/flex-2.5.4
        # sh build
20061222:
        Install binaries in the right order because the new readdir
        implementation and the new mount program are incompatible
        with older kernels and the new kernels require the new mount.
        # cd /usr/src
        # make includes
        # make libraries
        # make cmds
        # make depend
        # cd /usr/src/tools
        # make hdboot
        # make install
        # cd ..
        # make install
        Installing fails for boot. Reboot the system
        # reboot -x 'unset image; boot'
        Now install everything
        # cd /usr/src
        # make install
20061222:
        The archictecture-dependent/-independent split needs
ARCH=<arch>
        in /etc/make.conf, included by some Makefiles and sourced by
        some shell scripts. To install it, type 'make install' in
        src/etc, or simply copy the file over.
20070118:
        drivers.conf has been updated to include an ACL for mfs. it
has
        to be installed before rebooting after an update of the mount
command.
20070212 (r2751):
        mkfs needs more memory to make an image; chmem it or do
        # touch mkfs.c ; make /usr/bin/mkfs
        in /usr/src/commands/simple.

building the latest minix

Hi

I'm trying to get familiar with the latest minix code.  My had been to 
use the prebuilt vmware 3_1_2a image to build and install minix r3_1_3b.  

I was able to get 3_1_2a running under vmware and check out the 3_1_3b 
code and ftp it to my minix system.

So far so good.  But when I try to build it I run into a series of small 
problems that are not the kind of thing that I would expect to find in a 
tagged version.

I can give more details if necessary but right now I'm just wondering if 
I my expectations are reasonable.  My hope had been to get to the point 
where I could modify, build and run the latest stable minix code.  Am I 
going about this in the right way?

Thank you for any feedback.

- Dave

out of memory when compiling flex-2.5.4 under vmware

Hello everyone,

(I sent this to the comp.os.minix newsgroup too.)

I'm running out of memory when I try to compile flex-2.5.4 :

cc -c -I. -I. -g skel.c
Fatal: Out of memory
cc: /usr/lib/i386/cg: Signal 6 - core dumped
make in /usr/src/commands/flex-2.5.4: Exit code 1

I am running minix 3.1.2a under vmware. The code that I am trying to
compile is minix r3.1.3b which I checked out from the svn repository
as follows:

svn checkout https://gforge.cs.vu.nl/svn/minix/tags/r3_1_3b

My vmware machine is set to have 1GB of RAM .

Does anyone out there know a work around for this?

I wouldn't care so much except that it looks like I actually need flex
to compile the 3_1_3 code.

Thanks in advance.

- Dave

A question about alloc memory in Minix

Hi all, need help in a question:

Im trying to reserve memory for a variable buf in MM proc, i used malloc
correctly into, but when i run the syscall that calls this procedure, whe
n
execution arrive to malloc instruction jump outside with my error code (-
1):

PUBLIC int do_mapfile(){
   char *buf;
   tam=33;
   buf=(char *)malloc(tam*sizeof(char));
   printf("this message cant show \n");
} 

malloc can be used in MM task?, in user proc is OK.

If dont, how can i reserve memory in MM?

Thank you.

Minix scheduler

Hello all,
I would like to ask you if someone has or passed across a handout which
shows you the Minix3 scheduler used files and methods (where it is called

and which algorithm),
thanks.

Need help with a question