Re: HEADS-UP: Shared Library Versions bumped...

2009-07-20 Thread Chris Dillon

Quoting Ken Smith :


First I want to apologize.  This should have happened a bit sooner in
our release cycle than now.  To be honest I had slipped into "We have
symbol versioning for our libraries now" mode.  But only a few of the
libraries currently have that turned on and I sorta forgot we still need
to deal with all the shared libraries that do not have symbol versioning
enabled yet.  Sorry for the hassle this will cause.

...snip...

Wouldn't this be a great opportunity to fix kern/133926 by bumping up  
the max username length?




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Re: ZFS on top of GELI / Intel Atom 330 system

2009-05-29 Thread Chris Dillon

Quoting Dan Naumov :


Ouch, that does indeed sounds quite slow, especially considering that
a dual core Athlon 6400 is pretty fast CPU. Have you done any
comparison benchmarks between UFS2 with Softupdates and ZFS on the
same system? What are the read/write numbers like? Have you done any
investigating regarding possible causes of ZFS working so slow on your
system? Just wondering if its an ATA chipset problem, a drive problem,
a ZFS problem or what...


I recently built a home NAS box on an Intel Atom 330 system (MSI Wind  
Nettop 100) with 2GB RAM and two WD Green 1TB (WD10EADS) drives in a  
mirrored ZFS pool using a FreeNAS 0.7 64-bit daily build.  I only see  
25-50MB/sec via Samba from my XP64 client, but in my experience SMB  
always seems to have horrible performance no matter what kind of  
servers and clients are used.  However, dd shows a different set of  
figures:


nas:/mnt/tank/scratch# dd if=/dev/zero of=zero.file bs=1M count=4000
4000+0 records in
4000+0 records out
4194304000 bytes transferred in 61.532492 secs (68164052 bytes/sec)

nas:/mnt/tank/scratch# dd if=zero.file of=/dev/null bs=1M
4000+0 records in
4000+0 records out
4194304000 bytes transferred in 33.347020 secs (125777476 bytes/sec)

68MB/sec writes and 125MB/sec reads... very impressive for such a  
low-powered box, I think, and yes the drives are mirrored, not striped!



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Re: Analysis of disk file block with ZFS checksum error

2008-02-08 Thread Chris Dillon

Quoting Joe Peterson <[EMAIL PROTECTED]>:


I dumped the whole bad section as a string, and here's (partly) what I get:


[...edited for brevity...]


@$${138B8B{@
<(21470=Thu Jan 24 23:20:58 2008)>
[117:^80(^91^21470)]
@$$}138B8B}@

@$${138C18{@
<(21472=1201242069)>[-2:^80(^82^85)(^83^1B5)(^84=b)(^85=1)(^86=0)(^87=0)
(^88=0)(^89^2146C)(^8A=)(^8B=40)(^8C=2e)(^8D^84)(^8E=0)(^90^21472)
(^91^21460)]
@$$}138C18}@

@$${138C19{@
<(21473=a72f78)>[2:^80(^89^21473)]
@$$}138C19}@

@$${138C1A{@
@$$}138C1A}@

and more of the same.  Note the date string.  There are several like
that.  Anyone recognize this text format?


That is a chunk of a Mozilla Mork-format database.  Perhaps the  
Firefox URL history or address book from Thunderbird.


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Re: quota and snapshots in 6.1-RELEASE

2006-05-23 Thread Chris Dillon

Quoting Mike Jakubik <[EMAIL PROTECTED]>:


IIRC, there are some quota and snapshots changes merged in
6.1-STABLE after 6.1-RELEASE is releases. So I think you may want
to try that.


Thats correct. I have been meaning to test these, but not had the time
to do so yet. If you can, update to -STABLE and give it a test.


I have been running the fixes without problems since this weekend, but  
I was only bitten by the previous bugs maybe once or twice a week,  
even though I used snapshots and quotas extensively.  If my system  
manages to stay up at least two weeks it is most likely fixed. :-)



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Re: quota deadlock on 6.1-RC1

2006-05-02 Thread Chris Dillon

Quoting Kris Kennaway <[EMAIL PROTECTED]>:


On February 21 -- that is over 2 months ago -- I sent email to this
list containing a fix for the quota deadlocks that were known at the
time.  I got minimal response from users, but it was uniformly
positive.  The fix was committed, and the status of the "quota
deadlocks" item on the 6.1-RELEASE todo list was changed from "must
fix" to "believed fixed, please test".

The next I heard about the problem was about a week ago when someone
reported another deadlock and several others chimed in with "oh yeah,
it still deadlocks for me too".

Well, sorry folks, you should have told me in February.  Or if you
only found out about the problem a week ago, you need to recognize
that problems raised at the last minute cannot always be fixed
instantly.


I was one of those others who said "me too". :-)

Although I subscribe to every FreeBSD mailing list, I usually just  
glance over all of the subject lines until something catches my eye.   
So, unfortunately, I apparently missed that whole bit and it wasn't  
until a particular subject caught my eye recently that I thought it  
might be addressing the same problem I had.  I hadn't mentioned the  
problem to the lists before because I had zero diagnostic information  
about it and it was a production box that I couldn't fool around with  
too much, so I had found a workaround (daily reboot) a long time ago  
and didn't think much more about it.  Although I recently compiled the  
kernel with various debug options (WITNESS, DDB, etc.), it takes days  
for it to recur (without daily reboots) and when it hanged again a  
couple of nights ago, I completely forgot about trying to break into  
the debugger and rebooted the box anyway.  *slaps forehead*  And of  
course it hasn't happened again, yet.  Maybe next time.


I'll be happy when we figure out what the problem is and find a fix  
for it, it doesn't matter to me whether or not it makes it into the  
6.1 release.



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Re: fsck_ufs locked in snaplk

2006-04-26 Thread Chris Dillon


Sorry Dmitry, you'll get this again since I forgot to reply to the  
list the first time.


Quoting Dmitry Morozovsky <[EMAIL PROTECTED]>:


On Tue, 25 Apr 2006, Kris Kennaway wrote:

KK> What people are seeing now must be some other problem that I wan't
KK> able to reproduce.
KK>
KK> Once I hear back from someone who can reproduce it with debugging
KK> enabled (I'm also trying) we can try to fix it.

Please try to simulate user who is over soft quota and is out of   
grace period.

I'm trying to do so as well, but currently quite busy with other tasks :(


Hmm, this may very well be the key because I have about 3 users that  
are now over soft block quota and are out of grace time.  I would also  
wager that at least a couple of users exceed soft quota and possibly  
even hit the hard quota on a daily basis for short enough periods of  
time that I don't notice.  That may also explain why with no system  
changes over the past 20+ days that I suddenly had problems this last  
weekend, since quota changes constantly.


I'll have the debug setup in place this evening, I hope.  I know I  
said I would do it last night, but, well, it didn't happen. :-)



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Re: fsck_ufs locked in snaplk

2006-04-25 Thread Chris Dillon

Quoting Kostik Belousov <[EMAIL PROTECTED]>:


I'm going to update to the latest 6.1 code this evening and enable
INVARIANTS, WITNESS, and the two DEBUG_LOCKS options to the kernel to
see if it catches anything.


Please, also add DDB to the kernel and show the result of the
show lockedvnodes
alltrace
ps
in the DDB after the deadlock, as asked by Kris Kennaway earlier
in this thread !



OK, I've added DDB, but all of the information I might gather I'll  
have to write down by hand since I have no serial console access. :-(



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Re: fsck_ufs locked in snaplk

2006-04-25 Thread Chris Dillon

Quoting Dmitry Morozovsky <[EMAIL PROTECTED]>:


On Mon, 24 Apr 2006, Kris Kennaway wrote:

KK> Also you should add DEBUG_LOCKS and DEBUG_VFS_LOCKS on the off chance
KK> they catch the problem.

I got one thought about the source of these hangs/crashes: this   
machine is the
only one with actively used quotas. I'll test the more thoroughly   
this evening.


I had problems with snapshots and hangs in 5.x.  For that, a daily  
reboot would keep the problems at bay.  I upgraded to 6.0 and the  
problems completely disappeared.  I kept 6.0-STABLE running for weeks.  
 Somewhere along the line, as 6.1 approached, similar problems  
re-appeared, but not exactly the same as what I had in 5.x.  Now  
instead of a complete system hang, individual processes will hang  
while attempting to access a certain filesystem.  I'm running  
6.1-PRERELEASE from April 2 and for some reason since this weekend it  
has happened more often, but I'm not sure why since I haven't made any  
system changes since April 2.


I also am using quotas heavily with this system, and snapshoting every  
filesystem once a day.  The filesystem which processes will hang on  
when attempting to access it happens to be the one with quotas enabled.


I'm going to update to the latest 6.1 code this evening and enable  
INVARIANTS, WITNESS, and the two DEBUG_LOCKS options to the kernel to  
see if it catches anything.




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Re: How to make ipfw consider MAC-IP match?

2005-02-14 Thread Chris Dillon
On Tue, 15 Feb 2005, Artem Kuchin wrote:
Chris Dillon <[EMAIL PROTECTED]> wrote:
On Mon, 14 Feb 2005, Artem Kuchin wrote:
I have a table with ethernet (MAC) addresses matching IPs. It is
used to build dhcp config file. But regardless of that any user can
assign his neighbour ips while that pc is turned off and use it to
access internet. The local ips are 192.168. and are behind natd. I
am running 5.3-STABLE and have heard that ipfw2 can in someway use
MAC addresses, but how do I setup ipfw in such a way that it allows
certain IP only from one and only one MAC address? I hope you are
getting my idea.
What you probably want is static ARP entries.
arp -s 192.168.1.1 00:11:22:33:44:55
But that still won't stop someone from changing their IP address and
MAC address to match, it just makes it harder.  To prevent that kind
of thing you need to use 802.1x authentication or maybe even PPPoE.
Um.. I just have read tutorial about PPPoE and did not find anything about
matching IP and MAC addresses.  So, if i use PPPoE i still need to do
static ARP
You wouldn't need or want Static ARP with PPPoE.  You do 
authentication with PPPoE using usernames and encrypted passwords. 
Therefore no "stealing" unless someone figures out someone else's 
username and password.

(i did not undestrand, how i somebody can match mac and ip with 
static arp except that he actually get the physical NIC from 
somebody's computer).
Because you can change the MAC address of your NIC to match someone 
else's very easily.  Here's how in FreeBSD:

ifconfig fxp0 link 00:11:22:33:44:55
It's that easy...
Also, as i see, users on PPPoE can login from any computer and get 
their IP address.It will not work because of static arp, but still, 
there are getting their address. And the last thing, if i am to 
migrate to PPPoE this basically means i will need to give up DHCP, 
because PPP will serve IPs, not DHCP. Right?
Correct.  Users don't even have to have static IPs.  They can be 
assigned from a pool of IP addresses by the PPPoE server once they 
have authenticated.

And now the theory question. While i am running pppoe server on some 
ethernet interface what disallows any user to use that interface as 
a ip gateway without any pppoe? Just assigned themselves an ip, 
ignoring pppoe and using the server as a gateway. I am probably 
missing some point here.
You can have the Ethernet interface you are doing PPPoE with also have 
an IP address and act as a standard gateway if you really want to, 
which would be good for transitioning purposes until everybody is 
using PPPoE, but once that is done you can remove the IP address from 
the interface and PPPoE will be the only choice.

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Re: How to make ipfw consider MAC-IP match?

2005-02-14 Thread Chris Dillon
On Mon, 14 Feb 2005, Artem Kuchin wrote:
I have a table with ethernet (MAC) addresses matching IPs. It is 
used to build dhcp config file. But regardless of that any user can 
assign his neighbour ips while that pc is turned off and use it to 
access internet. The local ips are 192.168. and are behind natd. I 
am running 5.3-STABLE and have heard that ipfw2 can in someway use 
MAC addresses, but how do I setup ipfw in such a way that it allows 
certain IP only from one and only one MAC address? I hope you are 
getting my idea.
What you probably want is static ARP entries.
arp -s 192.168.1.1 00:11:22:33:44:55
But that still won't stop someone from changing their IP address and 
MAC address to match, it just makes it harder.  To prevent that kind 
of thing you need to use 802.1x authentication or maybe even PPPoE.

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Re: NATD Issue

2004-05-26 Thread Chris Dillon
On Wed, 26 May 2004, Evgeny Ivanov wrote:
in rc.conf:
natd_enable="YES"
natd_flags="-f /etc/natd.conf"
You also need:
gateway_enable="YES"
firewall_enable="YES"
Also make sure you're not doing anything silly in ipfw.  Use a stock 
/etc/rc.firewall and set firewall_type="OPEN" in rc.conf to make real 
sure.

in natd.conf:
use_sockets yes
same_ports yes
reverse yes
Why do you want 'reverse' enabled?  You probably don't want this.
interface fxp0
Make sure this is your public interface, not the private one.
redirect_address 10.0.1.2 one-external-ip
redirect_address 10.0.1.3 two-external-ip

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PATCH: conf/34729: treat smbfs as network file system in /etc/rc

2004-05-20 Thread Chris Dillon

I was helping someone on IRC with this problem and created my own
patch and was just about to submit it, then checked to make sure
nobody had already done the same.  Well, someone already has (two
years ago!), and the patch exists in conf/34729.  It works.  Can
someone commit this, pretty please?  The patch does not change the
fstab manual page, however, which probably should be updated to
reflect that SMBFS can be treated the same as NFS at startup.

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Re: ATA driver feature request

2002-01-24 Thread Chris Dillon

On Thu, 24 Jan 2002, SXren Schmidt wrote:

> > However, the warning message would be slightly reworded like "non-ATA66
> > compliant cable or second device"
>
> Good point, I'll get something done about this...

Just as a note, it doesn't have to just be the cable or the second
device, it can be either one or both or maybe the controller too. :-)

I don't remember, but I might actually be using an 80-wire cable here
on my box at work (as if it would matter with only an ATA33
controller):

atapci0:  port 0xf000-0xf00f at device
7.1 on pci0
ad0: 19541MB  [39703/16/63] at ata0-master UDMA33
ata0-slave: DMA limited to UDMA33, non-ATA66 compliant cable
ad1: 6149MB  [12495/16/63] at ata0-slave UDMA33
acd0: CDROM  at ata1-master using PIO4
afd0: 96MB  [32/64/96] at ata1-slave using PIO0

ata0-master is actually the device that is capable of ATA66 (actually
ATA100 I think).  I think ata0-slave is only capable of ATA33, but I
could be wrong.

My system at home with an ATA100-capable drive on a PIIX4 controller
doesn't mention anything about a non-compliant cable (though it really
is an 80-wire cable, maybe that's why), but it is also the only thing
on the bus (I use SCSI for everything else):

atapci0:  port 0xffa0-0xffaf at device
7.1 on pci0
ad0: 39083MB  [79408/16/63] at ata0-master UDMA33

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AAARGH. Was: Re: DOH! Something PCI-related recently broken in-STABLE

2001-08-18 Thread Chris Dillon

On Fri, 17 Aug 2001, Chris Dillon wrote:

> Sh~t.  Now I'm seeing a hang, but its hanging even on a
> pre-interrupt-routing kernel I kept.  Its completing the boot, and
> getting all the way to a login prompt, but it hangs solid just a
> few seconds after that.  The BIOS upgrade must have caused it. :-(

OK... this hang is really weird.  Everything is fine as long as I stay
in single-user mode. I can ifconfig interfaces, run cvsup, etc.  But
just seconds after booting multi-user and getting the login prompt,
the system hangs solid.  I've tried old 4.3 GENERIC kernels, recent
kernels, all the same.  I've removed everything imaginable from the
startup sequence.  Nothing in /usr/local/etc/rc.d starting up, nothing
on rc.local, I even somehow managed to accidentally delete rc.conf and
still it hangs on boot.  Made up a new rc.conf with everything
disabled that usually gets turned on by default.  Even took out all of
the tweaks in sysctl.conf.  No go.  Anyone else seeing this on a
Compaq or any other box?

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Re: Constant panics on 4.1-STABLE!

2000-09-20 Thread Chris Dillon


freebsd-bugs removed from Cc

On Wed, 20 Sep 2000, Alfred Perlstein wrote:

> * Chris Dillon <[EMAIL PROTECTED]> [000920 09:01] wrote:
> > On Tue, 19 Sep 2000, BSD wrote:
> > 
> > >   Thanks for any help!  Oh, and these panics can be as close as 12
> > > minutes and as far apart as 8 days (not the documented ones, but the ones
> > > I have had up to this point, with all 3 DIMMs in place).  You can see the
> > > uptimes for the documented panics at the bottom of the JPEGs.
> > 
> > I hate to tell you this, but this is most certainly a memory problem.
> > Get some memory that has been tested and approved by your motherboard
> > manufacturer for that board, and to be double-sure, make it ECC memory
> > and then enable ECC in the motherboard's BIOS.  If you STILL have
> > problems after that, then you can start blaming the problem on
> > something else.  The ONLY other time I have had problems like this is
> > when overclocking the processor.  You aren't overclocking those
> > processors are you?
> 
> Another problem can be heating issues, it doesn't matter how good
> your case's cooling is when the surrounding tempatures are too high.

Yes, I neglected to mention that.  Overheating can cause the same
symptoms that overclocking the processor does.


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Re: Constant panics on 4.1-STABLE!

2000-09-20 Thread Chris Dillon

On Tue, 19 Sep 2000, BSD wrote:

>   I'm running 4.1-STABLE on a 700MHz Athlon with a 300W power supply
> (only recently did I learn that 250W wasn't enough), a single Maxtor
> 40.9GB hard drive (UDMA/66, 7200RPM), an Abit KA7 motherboard, with
> normally 768MBs of PC133 RAM (non-ECC).  An fxp0 device, and a generic PCI
> video card.  pci0:  at
> 13.0 irq 10.  There's a floppy drive, and a 2-fan hard drive cooling unit
> that mounts in the front of 5.25" slot which houses the maxtor via
> mounting brackets.
> 
>   Even though 300W is considered the "minimum" by some for Athlon
> supplies, I think my minimal hardware should make it a stable option.
> 
>   The multiple panics were in the following sequence:
> 
>   1) Server is booted with all DIMMs, on a BP6.  PANIC.

The BP6 is a pretty solid 440BX based board, so I doubt that is the
culprit.  FreeBSD has no problems with this board or the PIII
you're using on it.  It's the memory.

>   2) Server is booted with all DIMMS, on a KA7.  PANIC.

The KA7 is a VIA KX133 based board.  I have never found VIA chipsets
to be reliable.  However, it is probably the memory which is at fault.

>   3) Server is booted with DIMMs #2 and #1.  PANIC.

Crappy memory.

>   4) Server is booted with DIMM #1.  PANIC.

Crappy memory.

>   5) Server is booted with DIMM #2.  PANIC.

Crappy memory.

>   6) Server is booted with DIMM #3.  PANIC.

Crappy memory.

> 
>   Anyone interested in helping me out here, can see the panic
> messages at the following url.  I'll post further panic captures there
> too, if they happen.  Panics 2-6 are listed in sequence on the website.
> 
>   http://24.108.110.119/~eo/panics/
> 
>   Thanks for any help!  Oh, and these panics can be as close as 12
> minutes and as far apart as 8 days (not the documented ones, but the ones
> I have had up to this point, with all 3 DIMMs in place).  You can see the
> uptimes for the documented panics at the bottom of the JPEGs.

I hate to tell you this, but this is most certainly a memory problem.
Get some memory that has been tested and approved by your motherboard
manufacturer for that board, and to be double-sure, make it ECC memory
and then enable ECC in the motherboard's BIOS.  If you STILL have
problems after that, then you can start blaming the problem on
something else.  The ONLY other time I have had problems like this is
when overclocking the processor.  You aren't overclocking those
processors are you?


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Re: Numbering of fxp devices

2000-08-22 Thread Chris Dillon

On Tue, 22 Aug 2000, Fred Clift wrote:

> > other way around. The order stayed this way for a couple of weeks during
> > which I tracked -stable and made world frequently, but after one
> > upgrade, the box came up with the on-board card claiming to be fxp0.
> > However, not long afterwards, it reverted to the original behaviour.
> > 
> > Now, obviously the numbering doesn't matter all that much. What _does_
> > matter is if the numbering is unpredictable at boot time (worst case) or
> > if it may be reversed after a remote upgrade. Is this down to pure fluke
> > or can I lock down the order in some way?
> 
> 
> I am not directly aware of what recent changes would have caused
> the change in probe order, but I can give you some ideas about
> where to look and then offer my comments about what I belive would
> be ideal.
> 
> in FreeBSD <= 3.X it appears that all pci-to-pci busses were
> probed first, and then devices on them were probed in some fixed
> order.
> 
> In FreeBSD >= 4.0 the 'newbus' code replaced a lot of the old bus
> code including probing and now the buses are probed kind of in a
> depth-first fashion, finding all devices on a particular bus and
> then moving on to another.  Aparently, from your results, the
> order that the busses are probed has been changed or something
> similar.
> 
> I pitty the guy with whom I exchanged emails a while back that is
> running a 6 or 8 port 'router' all with fxp cards.  He was running
> 3.4 last I knew and was planning on waiting a LONG time before
> upgrading to 4.X because of the relative difficulty of figuring
> out which cards when where.

That would be me, probably.  :-)

7 NICs, one of which is dual-port, for a total of 8 ports.  I recently
moved all of those NICs from a Compaq Proliant 3000 running 3.4-STABLE
into a new Proliant ML530 running 4.1-STABLE.  The card order is
definately weird, but that isn't so much FreeBSD's fault.  Compaq was
nice enough to label primary, secondary, and tertiary PCI bus slots on
the back of the machine, but they aren't in order anyway.  What I
ended up doing was booting the system with all the cards installed,
noting the MAC address of each interface, and then comparing that to
physical slot locations.  Not as nice as the sequential ordering in
the Proliant 3000, but not a big deal either, as long as it doesn't
change on me in the future without some warning.  :-)

> What I would find to be the best of all possible worlds is if you could
> wire-down pci-card instances to particular instances of a driver - ie I
> want the first card on bus 2 to be fxp0 and the second card on bus 1 to be
> fxp1, etc...  Of course this would depend on finding the busses in the
> right order, but...

This would be nice.  But, if bus or device ordering changes, you'd
still be up the same creek.  You'd have to wire things down in a
card-specific way and not a bus/slot-specific way.

> Unfortunately, I'm, uh, somewhat unexperience in this (and most of the
> rest) of the code and when I looked at it, all I got was a headache.  How
> hard would it be to either provide a consistent mapping or to allow the
> hard-wiring of devices to drivers?


-- Chris Dillon - [EMAIL PROTECTED] - [EMAIL PROTECTED]
   FreeBSD: The fastest and most stable server OS on the planet.
   For Intel x86 and Alpha architectures. ( http://www.freebsd.org )




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Re: distfiles no longer on 4.0 CDs

2000-04-19 Thread Chris Dillon

On Wed, 19 Apr 2000, Jordan K. Hubbard wrote:

> That would not be a simple solution.  There are more packaging
> problems with this than you've probably ever dealt with since we deal
> with CD sets in terms of tens-of-thousands quantities.
> 
> I will continue to explore going to a 6 CD set, but that also means
> more work for me on every release so I'm in no particular hurry. :)

How about using 80-minute/700MB discs?  It would only let you squeeze
in another 50MB/disc, but that would mean an extra 200MB for the 4-CD
set.  Apparently this is what Microsoft and many others have been
doing for a while now.


-- Chris Dillon - [EMAIL PROTECTED] - [EMAIL PROTECTED]
   FreeBSD: The fastest and most stable server OS on the planet.
   For Intel x86 and Alpha architectures. ( http://www.freebsd.org )




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