Re: help

2010-01-08 Thread Matthew Miller
On Thu, Jan 07, 2010 at 09:42:06PM +, jorge a secas wrote:
> we at work have some PC's with 256 MB RAM, the graphical mode doesn't
> load, so we choice the text mode, but in all machines we get the same
> error, Anaconda 12.47

What is the error you get in text mode?

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Re: entropy

2010-01-07 Thread Matthew Miller
On Thu, Jan 07, 2010 at 06:40:02PM +0100, Roberto Ragusa wrote:
> > Hi all,
> >  if I simply write to /dev/random, will that increase the entropy of my
> > system? (I'm assuming that the data I'm writing are random and that
> > somehow I got them).
> Wikipedia says so.
> My tests say no.

How are you testing?

The wikipedia article says:

  Non-random data is harmless, because only a privileged user can issue the
  ioctl  needed to increase the entropy estimate. 

SO 

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Re: entropy

2010-01-07 Thread Matthew Miller
On Thu, Jan 07, 2010 at 07:28:20PM +, Patrick O'Callaghan wrote:
> But random(4) does not. Is there some other authoritative source for
> this?

Yes. :)

http://lxr.linux.no/#linux+v2.6.32/drivers/char/random.c

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Re: Bug in /etc/cron.d/mlocate.cron or am I crazy?

2009-11-28 Thread Matthew Miller
On Sat, Nov 28, 2009 at 05:34:28PM -0500, Steven W. Orr wrote:
> Now you've jinxed it! I'll betcha a buck that Murphy is subscribed to this
> list and that's the next thing that's going to happen. It'll probably be a
> feature of ZFS. ;-)

I'm willing to bet up to *three* imaginary dollars that ZFS will be
called something like "zfs". :)

> I'm willing to work with this approach, but then the proper way to do it in
> awk would be as follows:
> nodevs=$(< /proc/filesystems awk -F '\t' '/^nodev/ && NF==2 { print $2 }')

Well, I think might as well go with the more straightforward syntax of

 nodevs=$(awk -F '\t' '/^nodev/ && NF==2 { print $2 }' < /proc/filesystems)

but yeah. File a bug. :)
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Re: Bug in /etc/cron.d/mlocate.cron or am I crazy?

2009-11-28 Thread Matthew Miller
On Sat, Nov 28, 2009 at 02:51:58PM -0500, Steven W. Orr wrote:
> Yes, I agree that if I see that script hanging on a regular basis then I
> will provide trace data to Bugzilla for further analysis. But this begs
> two questions:

It's pretty important to know where it's hanging. I don't think it's likely
to be a bug in awk; therefore, I think it's probably likely you'll see the
same thing with your version of the script.


> Either way, the original script is deficient because it does not properly
> recognize fields 1 and 2.

Again, only an issue if a filesystem type happens to be given the name
"nodev" *and* isn't itself a nodev fs *and* shouldn't be excluded from
updatedb anyway. So, that seems pretty academic, even though you're
technically correct.

Second, there's nothing performance-sensitive about this part of the script,
so optimizing out an awk call at the expense of changing a simple one-liner
to a half-page function doesn't seem like a win. So, updating the awk
pattern to use either a regular expression or the same logic found in your
function seems like the better change (if any is to be made at all).




> 
> Am I being too anal? Is it a doc problem? Is it a bug in mlocate that should
> be fixed?
> 
> -- 
> Time flies like the wind. Fruit flies like a banana. Stranger things have  .0.
> happened but none stranger than this. Does your driver's license say Organ ..0
> Donor?Black holes are where God divided by zero. Listen to me! We are all- 000
> individuals! What if this weren't a hypothetical question?
> steveo at syslang.net
> 



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Re: Bug in /etc/cron.d/mlocate.cron or am I crazy?

2009-11-28 Thread Matthew Miller
On Sat, Nov 28, 2009 at 09:53:47AM +0100, Michael Schwendt wrote:
> > Have you tried it? The code in the file isn't an error; it's just very
> > obscure bash syntax. That is, $(< /some/file ) is obscure, and $(<
> > /some/file filter-command ) is *really* obscure. Doesn't seem to be
> > documented in the bash manual -- but it works.
> See first chapter of topic "REDIRECTION" in bash manual.

Yeah, not seein' it.

Wouldn't be the first time I've been dense; can you point me at the exact
text?

> > And putting a | in the middle there doesn't.
> That would only work as expected when also replacing "<" with "cat".

Of course.

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Re: Bug in /etc/cron.d/mlocate.cron or am I crazy?

2009-11-27 Thread Matthew Miller
On Fri, Nov 27, 2009 at 10:55:17PM -0500, Steven W. Orr wrote:
> I can't believe this is a real bug. I'm submit it to bugzilla. It's in F10, 11
> and 12. I'd be curious to know just how old this bug is.
> Contents of mlocate.cron is:
> #!/bin/sh
> nodevs=$(< /proc/filesystems awk '$1 == "nodev" { print $2 }')
[...]
> Unless I'm going cuckoo, I'm guessing that the intent was for line two to be:
> nodevs=$(< /proc/filesystems | awk '$1 == "nodev" { print $2 }')

Have you tried it? The code in the file isn't an error; it's just very
obscure bash syntax. That is, $(< /some/file ) is obscure, and $(<
/some/file filter-command ) is *really* obscure. Doesn't seem to be
documented in the bash manual -- but it works. And putting a | in the middle
there doesn't.

For clarity alone, though, I'd argue that it should be changed to:

> nodevs=$(awk '$1 == "nodev" { print $2 }' < /proc/filesystems)

but I don't see what your longer function really buys, and ${#BASH_REMATCH}
doesn't exactly win in readability.

> Note that as it was written, it did not properly take into account the empty
> first token.

Well, in the unlikely event that someone names a filesystem "nodev", maybe
that's worthwhile. :) But I think 

 nodevs=$(awk '/^nodev\t/ { print $2 }'  Also, I don't know about the rest of you guys, but this script used to hang on
> me on a regular basis. I'll look and see awk just hung. This bypasses awk or
> any pipe at all and will never hang.

I've never seen that, but if you are, I expect you're just as likely to get
hangs with the "done < /proc/filesystem".


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Re: psacct/lastcomm shows allways root as user

2009-11-27 Thread Matthew Miller
On Fri, Nov 27, 2009 at 02:04:02PM +0100, Herbert Gasiorowski wrote:
> On Fedora 12 lastcomm only shows root user, even for commands from other 
> users.
> It seems to me that e.g. my uid is not within the /var/account/pacct file
> - it is allways zero - thus root.
> It all works fine with fedora 11.

Hmmm, yeah -- something is broken there. Have you filed a bug?

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best fedora-out-of-the-box pcmcia wifi?

2008-10-30 Thread Matthew Miller
Does anyone have a recommendation for a modern PCMCIA/PC Card wifi card
which just works out of the box with recent Fedora? I can download a
firmware blob if I have to, but extra points for not having to. These days
all new laptops have wireless built in so all the current info I can find
seems focused on that.

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Re: HP 2133 Report

2008-08-20 Thread Matthew Miller
On Wed, Aug 20, 2008 at 09:35:10AM -0600, Phil Meyer wrote:
> Overall, recommended, especially if the openchrome driver gets updated.

Thanks for the report. I'm looking hard at this thing as a replacement for
my Vaio U101....

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Re: sudo GUI frontend

2008-08-20 Thread Matthew Miller
On Wed, Aug 20, 2008 at 03:22:20PM +0300, Gilboa Davara wrote:
> I might have mis-represented my request:
> I'm using sudo to give users selective rights over certain services.
> However, sudo requires a user password, once in while (good thing) - and
> I rather use a GUI front-end for that.

Which services? You may be able to use consolehelper (or even PolicyKit, for
newer things).

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Re: Which ATI graphics card shall I choose for fedora/rhel

2008-08-20 Thread Matthew Miller
On Wed, Aug 20, 2008 at 07:50:36AM -0400, Gene Heskett wrote:
> >That's an R500 chipset. It'll work in 2d now, and 3D (and with compiz) in
> >the future. If you need 3D now, you need a much older card -- R200 or R300
> >chipset. Look at the man page for "radeon" for product name-to-chipset
> >matching.
> I have an RV280 radeon card, no 3d, and not expected to ever be.

Yeah, it has to be specifically R200: Radeon 8500, 9100, FireGL 8800/8700.

And, uh, I think I was wrong about R300 and 3D.

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Re: Which ATI graphics card shall I choose for fedora/rhel

2008-08-20 Thread Matthew Miller
On Wed, Aug 20, 2008 at 11:24:47AM +0100, Dan Track wrote:
> Thanks for that. My supplier said he can't get that card but he said
> he can get the Saphirre Radeon x1650 Pro 512MB DDR2 AGP VGA DVI TV,
> would you know if that's supported and would work well with fedora 9
> and compiz?

That's an R500 chipset. It'll work in 2d now, and 3D (and with compiz) in
the future. If you need 3D now, you need a much older card -- R200 or R300
chipset. Look at the man page for "radeon" for product name-to-chipset
matching.

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Re: Infrastructure status, 2008-08-19 UTC 0200

2008-08-19 Thread Matthew Miller
On Tue, Aug 19, 2008 at 07:45:29AM -0430, Patrick O'Callaghan wrote:
> Signatures tell you that whoever produced them has the private key, the
> rest is assumption.

Same with the host key, really.

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Re: Infrastructure status, 2008-08-19 UTC 0200

2008-08-19 Thread Matthew Miller
On Tue, Aug 19, 2008 at 06:10:50PM +0930, Tim wrote:
> >> Is it just me, or do others also think that a public email (even a
> >> signed one) would be almost the worst place to trust a fingerprint
> >> announcement?
> Laszlo BERES:
> > If the mail is correctly signed then it's OK.
> A message being correctly signed isn't quite the same thing as being
> able to verify that it's been produced by the person in question.

If it's widely distributed and seen as okay by multiple people who can
verify it directly, it's perfectly fine. After all, it's *meant* to be
public information.

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Re: Infrastructure status, 2008-08-16 UTC 1530

2008-08-18 Thread Matthew Miller
On Mon, Aug 18, 2008 at 10:15:24AM -0800, Jeff Spaleta wrote:
> The specific current situation aside for a moment. As a Board member,
> I am interested in thinking about a better mechanism of communication
> of anything hoped to be seen by the entire community.  Is the annouce
> list the best thing we can do? Or is it just the best thing we can do
> right now given our current tools?   Nothing's ever perfect but their
> maybe room to try something new with regard to communication
> mechanisms... if there are people willing to put the effort in to
> build it.

The _mechanism_ seems fine.


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important question about updates [was Re: Infrastructure status, 2008-08-19 UTC 0200]

2008-08-18 Thread Matthew Miller
On Tue, Aug 19, 2008 at 02:07:45AM +, Paul W. Frields wrote:
> Please give the infrastructure team the time they need to do this
> demanding work. They have been doing a spectacular job and deserve the
> absolute highest credit.

Having been in some serious infrastructure-crunch situations myself, I can
definitely imagine.

> We know the community is awaiting more detail on the past week's
> activities and their causes.  We're preparing a timeline and details and
> will make them available in the near future.  We appreciate the
> community's patience, and will continue to post updates to the
> fedora-announce-list as soon as possible.

Paul, your original message contained an ominous warning that no one should
download or update any additional packages. This is an untenable situation
for anyone depending on Fedora. You haven't mentioned this at all in the
subsequent messages; does this still apply? 

Following the line of thought to its logical conclusion, is there a risk
that end-user systems are compromised in some way via previous updates? I
know you've got things to work out, but with the school year starting and
all, we need to know what level of recovery work of our own will be
required. I'm not looking forward to following the infrastructure's long
weekend with one of my own -- but if I'm going to have to, I'd really
appreciate knowing about it as soon as possible.

Thanks.


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Re: Fedora upgrade from 6 to 9

2008-08-18 Thread Matthew Miller
On Mon, Aug 18, 2008 at 02:02:07PM +0300, Sundeep Pundamale wrote:
> Thats the constraint i have. The linux box has apache, php, mysql,svn, 
> openfire, openvpn, samba and many more applications running. Doing a fresh 
> installation and reconfiguring all these applications would be a very time 
> consuming task. Is there some other alternative that is more feasible 
> rather than a fresh installation.

You could try an upgrade, but in my experience, that's *more* time
consuming than a fresh install. 

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Re: Fedora upgrade from 6 to 9

2008-08-18 Thread Matthew Miller
On Mon, Aug 18, 2008 at 01:36:54PM +0300, Sundeep Pundamale wrote:
> Can some one provide instructions to upgrade fedora 6 to fedora 9. What are 
> the precautions that needs to be taken so as to not break the system and 
> existing configurations.

Here's how I'd think about it: how would you get the system configuration
and data back if the hard drive failed? At this level of update, you're
probably best doing a clean install and then recreating your existing
configuration. (Easiest to do if you have /home on a separate partition.)

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Re: Infrastructure status, 2008-08-16 UTC 1530

2008-08-17 Thread Matthew Miller
On Sat, Aug 16, 2008 at 11:09:09PM -0400, max wrote:
>> I wondered that, too.  The original posting was too vague.  You can't
>> tell if they're just fixing a fault, or sorting out an attack.
> Assume the latter and act accordingly.

Like, how? Quick, switch everything to another distro? We don't know enough
to act reasonably.

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Re: Infrastructure status, 2008-08-16 UTC 1530

2008-08-16 Thread Matthew Miller
On Sat, Aug 16, 2008 at 11:30:03AM -0400, Paul W. Frields wrote:
> The Fedora Infrastructure team continues to work on the issues we
> discovered earlier this week.  Right now, we're getting the account
> system restored to service, along with some of the application servers.
> We're also taking advantage of the outages to upgrade a few systems at
> the same time.

So, is it safe to apply updates?

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HP 2133 Mini-Note w/Fedora, anyone?

2008-08-01 Thread Matthew Miller
I'm looking to replace my aging Sony Vaio U101 ultramini notebook. I've been
watching the EEE and friends with interest, but I'm not going to take a step
back in screen resolution from what I bought five years ago. The HP 2133
looks like the first thing that fits the bill, at 1280x768. It's relatively
huge (almost half again as wide as the U101), but looks like if you go
smaller than that these days it's basically chicklet-keyboards and
'smartphone' designs.

I've seen some guides for getting this going on Ubuntu and on Gentoo, but
I'm wondering if there's any Fedora-specific information -- particularly
regarding the big laptop troublemakers: wireless, video, and audio.

Thanks!
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Re: Info about FUDCon Boston (please read)

2008-06-13 Thread Matthew Miller
On Sun, Jun 01, 2008 at 10:18:41PM +0200, Max Spevack wrote:
> 4) Breakfast and lunch at the Saturday BarCamp at Boston University, again 
> for those who have pre-registered.
> 5) Security and facilities at Boston University.

Correct. We'll only be able to provide security to those who have
pre-registered, so if you don't, we can't guarantee that nothin' will happen
to you. If you know what I mean. And I think you do.

We've still got some space left, so if you know what's good for you,
preregister.

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FUDCon Boston transportation warning for those taking the Red Line

2008-06-13 Thread Matthew Miller
People on the Cambridge side of the river need to be aware that the MBTA is
doing repairs on the tracks on the Longfellow Bridge the weekend of FUDCon,
which means they'll be running busses between Kendall and Park. In the
best-case scenario it means anyone planning to come to BU by that route
needs to add another 15 minutes to their planned commute.

I'm planning to go to Central Square and take the 47 bus across the river
instead. Or if the weather is nice, just walk from there.



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