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Keith Lofstrom | 1 May 2006 06:06
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Re: External USB 2.0 hard drives

"Michael M." <nixlists <at> writemoore.net> dijo:
>I want to get an external USB 2.0 hard drive in the vicinity of 300GB.  
>Newegg has a nice-looking simple 320GB model from the WD "essential" 
>series that does just USB 2.0 and doesn't come with (useless for 
>non-Windows/OSX) back-up software, yet I still can't find anything 
>"official" saying, yes, this drive should work fine with Linux operating 
>systems.  I'm 99% sure it should be fine, because it seems to lack 
>proprietary gotchas, but I thought I'd ask in case there is some 
>glaringly obvious warning sigh I'm missing?

In the past, I had problems with some USB chipsets in conjunction with
2.4.X and some of the early 2.6.X kernels.  The drives would mount, but
they would lock up after moving an hour or so of data.  More information
at http://www.keithl.com/usb2bug.html.  I don't know whether that bug 
has been fixed - I haven't had time to pursue it or even verify if it
is still there on newer kernels.

Keith

--

-- 
Keith Lofstrom          keithl <at> keithl.com         Voice (503)-520-1993
KLIC --- Keith Lofstrom Integrated Circuits --- "Your Ideas in Silicon"
Design Contracting in Bipolar and CMOS - Analog, Digital, and Scan ICs
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John Jason Jordan | 1 May 2006 07:15
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Re: External USB 2.0 hard drives

On Sun, 30 Apr 2006 21:06:46 -0700
Keith Lofstrom <keithl <at> kl-ic.com> dijo:

> In the past, I had problems with some USB chipsets in conjunction with
> 2.4.X and some of the early 2.6.X kernels.  The drives would mount, but
> they would lock up after moving an hour or so of data.  More information
> at http://www.keithl.com/usb2bug.html.  I don't know whether that bug 
> has been fixed - I haven't had time to pursue it or even verify if it
> is still there on newer kernels.

Hmmm.

KDar (Dar with KDE user interface) is what I have been using to back up
to my 60 GB USB pocket drive. KDar locks up about one backup out of
three. I wonder if I have been blaming KDar when I should have been
blaming USB.
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Keith Lofstrom | 1 May 2006 18:06
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Stuart Cohen speaks at OGI Tuesday night


At OGI in Hillsboro, Tuesday night at 6PM :

GLOBAL BUSINESS 2006: Open Source Development and the Global Marketplace

Stuart Cohen speaking.  Free Pizza.

http://www.cpd.ogi.edu/coursespecific.asp?pam=2048

Keith

--

-- 
Keith Lofstrom          keithl <at> keithl.com         Voice (503)-520-1993
KLIC --- Keith Lofstrom Integrated Circuits --- "Your Ideas in Silicon"
Design Contracting in Bipolar and CMOS - Analog, Digital, and Scan ICs
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Garl Grigsby | 1 May 2006 18:39
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Re: External USB 2.0 hard drives

John Jason Jordan wrote:
> Turning the question around might be easier: Are there any USB drives
> that *don't* work with Linux? (I've heard of problems with USB 2.0, but
> once the user has USB 2.0 working, I've never heard of any drives that
> wouldn't mount.) If there are any, why won't they work?
>   

Yes there are. Anything based on a Genesys Logic USB-IDE chip will fail. 
I bought several external cases to use for backup based on this chip and 
the transfer would fail after transferring only a few hundred megs. 
Sometimes the failure would result in the drive disappearing, sometimes 
it would just stream errors continuously (hundreds and hundreds of megs 
in a few minutes).  There was a work around but it resulted in such poor 
transfer rates that I bit the bullet and purchased a case with a 
different chipset (sorry, can't remember which one right now...). No 
more problems. I now regularly transfer 50+ GB of data with out error.

I've only used two 'prebuilt' usb drives: 1 Seagate and one Western 
Digital. Both work fine. No errors. No problems. I use another

Garl
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Larry Brigman | 1 May 2006 19:47
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Re: ADSL dslam...

On 4/28/06, plug_0 <at> robinson-west.com <plug_0 <at> robinson-west.com> wrote:
> I have a situation where there is a desire for telephone and network
> connectivity in two buildings 200 feet apart.  I have a
> wired/wireless ethernet between the buildings.
>
> One possibility is doing a phoneline and running DSL on top of it.
> Question is, does anyone offer an ADSL dslam that is cheap for a
> single point to point link?  I don't need ADSL2, ADSL2+, SDSL, 24
> ports, etc.
>
> Is there an inexpensive way to feed a POTS signal through an IP network
> and convert it back to POTS at a remote location?  I go from
> 100baseTX to 802.11b for my ip link.  I hear that 100baseTX lines
> have a free pair that can carry POTS. If I can feed POTS over
> 802.11b wifi, I don't need to do DSL.
>
> I have a Verizon modem and a netopia modem from CenturyTel that are
> both ADSL capable.  What is the best way to cash in old DSL modems
> that have no use?  Are there any local businesses that will take them?
>
>

You are right you have several options.  If you already have Ethernet
connectivity
between the two locations just break-out pair #4 from the cable, connect your
phone line to it and connect your phone at the other end.  200ft is
well within the spec
distance for 100base t of 100 meters.  You would not need DSL to do this unless
you want to slow your network speed down or wanted to experiment by running
making your network and phone work on the same pair. If you want to do that
(Continue reading)

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Charlie Schluting | 1 May 2006 20:19
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Gravatar

Re: ADSL dslam...

Larry Brigman wrote:
> On 4/28/06, plug_0 <at> robinson-west.com <plug_0 <at> robinson-west.com> wrote:
>> I have a situation where there is a desire for telephone and network
>> connectivity in two buildings 200 feet apart.  I have a
>> wired/wireless ethernet between the buildings.
>>
>> One possibility is doing a phoneline and running DSL on top of it.
>> Question is, does anyone offer an ADSL dslam that is cheap for a
>> single point to point link?  I don't need ADSL2, ADSL2+, SDSL, 24
>> ports, etc.
>>

You'd be better off with Long-range ethernet, if you're buying gear. But
200 ft is fine for ethernet, 100bT only requires 4 wires.

Also, you can put two cisco 678's on both sides if you really want. (no
DSMLAM needed)
Assuming the phone line isn't going through the phone company.. because
if it is, that won't work, unless you can get a "raw" circuit (normally
used for security systems, and costs $$$). If you have raw wiring
between the two, just use ethernet.

-Charlie
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David Mandel | 2 May 2006 00:59

ANNOUNCEMENT: May PLUG Meeting


                             MEETING ANNOUNCEMENT

                        The Portland Linux/Unix Group
                                  will meet
                          7 PM Thursday May 4, 2006
                                      at
                          Portland State University
                                      in
                            Smith Memorial Center
                                   Room 294
                           On the block bounded by
       SW Montgomery, SW Broadway (7th), SW Harrison, and SW Park (9th)

      *******************************************************************

                                 PRESENTATION

                                VectorSection
                     (previously known as: UberConverter)
       Open Source File Format Translation for CAD and Vector Graphics

                                      by

                                 Eric Wilhelm
                         <scratchcomputing <at> gmail.com>

      VectorSection uses concepts such as "small pieces, loosely joined" 
      to inform the design of a set of transparent and simple-yet-capable
      interconnected tools for manipulating and translating 2D and 3D
(Continue reading)

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Piet van Weel | 2 May 2006 00:34
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FAA migrates to Red Hat

This was posted on the Alaska Linux User Group's List...

Piet

Stanley Long wrote:
> This is getting almost "me too".
> Too common to justify even a News Picks, but fun to see :-))
> I posted this to AKLUG's list.
>
>
> http://www.linuxelectrons.com/article.php/20060426090915735
>
> ... saved ... more than $15 million ....
>
> The FAA executed a major systems migration to Red Hat Enterprise Linux
> in one-third of the original scheduled time and with 30 percent more
> operational efficiency than the previous system. ... 50 percent savings
> and spent less than $10 million on a project initially estimated at $25
> million.
>
> ---------
> To unsubscribe, send email to <aklug-request <at> aklug.org>
> with 'unsubscribe' in the message body.
>
>
>
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Jeff Moore | 2 May 2006 01:30
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Virtual Interface Limit?

Hi all! I am currently thinking about setting up a machine to act as a
failover "Sorry nobody is home!" web server during planned outages. I am
wondering what the  limit is on virtual interfaces. I currently have 30
configured and can ping them locally.

Thanks for the help!
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Timothy J. Bruce | 2 May 2006 01:45

Re: External USB 2.0 hard drives


On Sun, April 30, 2006 21:06, Keith Lofstrom said:
> "Michael M." <nixlists <at> writemoore.net> dijo:
>>I want to get an external USB 2.0 hard drive in the vicinity of 300GB.
>>Newegg has a nice-looking simple 320GB model from the WD "essential"
>>series that does just USB 2.0 and doesn't come with (useless for
>>non-Windows/OSX) back-up software, yet I still can't find anything
>>"official" saying, yes, this drive should work fine with Linux operating
>>systems.  I'm 99% sure it should be fine, because it seems to lack
>>proprietary gotchas, but I thought I'd ask in case there is some
>>glaringly obvious warning sigh I'm missing?
>
> In the past, I had problems with some USB chipsets in conjunction with
> 2.4.X and some of the early 2.6.X kernels.  The drives would mount, but
> they would lock up after moving an hour or so of data.  More information
> at http://www.keithl.com/usb2bug.html.  I don't know whether that bug
> has been fixed - I haven't had time to pursue it or even verify if it
> is still there on newer kernels.
>
> Keith
>
> --
> Keith Lofstrom          keithl <at> keithl.com         Voice (503)-520-1993
> KLIC --- Keith Lofstrom Integrated Circuits --- "Your Ideas in Silicon"
> Design Contracting in Bipolar and CMOS - Analog, Digital, and Scan ICs
> _______________________________________________
> PLUG mailing list
> PLUG <at> lists.pdxlinux.org
> http://lists.pdxlinux.org/mailman/listinfo/plug
>
(Continue reading)

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Gmane