Date   

Re: PS: [IRLP] IRLP OS and USB Drive

Phil Zocco
 

BTW, do you format the USB drive as FAT 32 or NTFS even though it will hold a Linux OS?

 

From: IRLP@irlp.groups.io [mailto:IRLP@irlp.groups.io] On Behalf Of Phil Zocco
Sent: Tuesday, December 03, 2019 6:50 PM
To: IRLP@irlp.groups.io
Subject: Re: PS: [IRLP] IRLP OS and USB Drive

 

Thanks to all for the replies.

 

To Dave C: O was looking for software to image directly to a USB stick and now I know what to look for.

 

73,

 

Phil N1BOW

 

From: IRLP@irlp.groups.io [mailto:IRLP@irlp.groups.io] On Behalf Of David Cameron - IRLP
Sent: Tuesday, December 03, 2019 6:43 PM
To: IRLP@irlp.groups.io
Subject: Re: PS: [IRLP] IRLP OS and USB Drive

 

Actually, with the latest ISO image you can write the iso image directly to a USB stick using win32diskImager, the same way you would image an SD card for a raspberry pi. 

 

David Cameron 

 

 

 

-------- Original message --------

From: John <gielisj@...>

Date: 12/3/19 3:29 PM (GMT-08:00)

To: IRLP <IRLP@irlp.groups.io>

Subject: PS: [IRLP] IRLP OS and USB Drive

 

Also, I doubt whether you can copy, verbatim, the content of a ISO CD to a USB
stick, and expect IT to boot.

I will stand corrected !! :)

John

On 4/12/2019 9:25 am, John wrote:
> Hi Phil,
>
> I would suggest checking the BIOS on that MB to see it it allows a USB port to
> be bootable.
>
> 73 John@6163
>
>> On 4/12/2019 9:10:20 AM, Phil Zocco (n1bow@...) wrote:
>> > Greetings, IRLPers.
>>
>> I am in the process of updating node 5960 to a DN2800MT motherboard and an
>> SSD. I was able to find a board complete with 4G of memory on ebay.
>>
>> I have also been able to burn the ISO image Version 12.07 to a CD.
>> The only thing is in that clearing out my box of PC junk, I threw away my old
>> CD-ROMs.
>>
>> Then I noticed that the MB has no IDE port but it as a number of USB ports.
>> And the MB has SATA ports so using a PNY 120G SSD should work.
>>
>> My question is this: once I have burned the image to a CD, can I simply copy
>> all of the files from the CD to a USB drive and use that to install the IRLP
>> OS? IOW, will the USB drive be bootable?
>>
>> Thanks in advance.
>>
>>
>> 73,
>>
>> Phil N1BOW
>>
>>
>>
>>


Re: PS: [IRLP] IRLP OS and USB Drive

Phil Zocco
 

Thanks to all for the replies.

 

To Dave C: O was looking for software to image directly to a USB stick and now I know what to look for.

 

73,

 

Phil N1BOW

 

From: IRLP@irlp.groups.io [mailto:IRLP@irlp.groups.io] On Behalf Of David Cameron - IRLP
Sent: Tuesday, December 03, 2019 6:43 PM
To: IRLP@irlp.groups.io
Subject: Re: PS: [IRLP] IRLP OS and USB Drive

 

Actually, with the latest ISO image you can write the iso image directly to a USB stick using win32diskImager, the same way you would image an SD card for a raspberry pi. 

 

David Cameron 

 

 

 

-------- Original message --------

From: John <gielisj@...>

Date: 12/3/19 3:29 PM (GMT-08:00)

To: IRLP <IRLP@irlp.groups.io>

Subject: PS: [IRLP] IRLP OS and USB Drive

 

Also, I doubt whether you can copy, verbatim, the content of a ISO CD to a USB
stick, and expect IT to boot.

I will stand corrected !! :)

John

On 4/12/2019 9:25 am, John wrote:
> Hi Phil,
>
> I would suggest checking the BIOS on that MB to see it it allows a USB port to
> be bootable.
>
> 73 John@6163
>
>> On 4/12/2019 9:10:20 AM, Phil Zocco (n1bow@...) wrote:
>> > Greetings, IRLPers.
>>
>> I am in the process of updating node 5960 to a DN2800MT motherboard and an
>> SSD. I was able to find a board complete with 4G of memory on ebay.
>>
>> I have also been able to burn the ISO image Version 12.07 to a CD.
>> The only thing is in that clearing out my box of PC junk, I threw away my old
>> CD-ROMs.
>>
>> Then I noticed that the MB has no IDE port but it as a number of USB ports.
>> And the MB has SATA ports so using a PNY 120G SSD should work.
>>
>> My question is this: once I have burned the image to a CD, can I simply copy
>> all of the files from the CD to a USB drive and use that to install the IRLP
>> OS? IOW, will the USB drive be bootable?
>>
>> Thanks in advance.
>>
>>
>> 73,
>>
>> Phil N1BOW
>>
>>
>>
>>


Re: PS: [IRLP] IRLP OS and USB Drive

David Cameron - IRLP
 

Actually, with the latest ISO image you can write the iso image directly to a USB stick using win32diskImager, the same way you would image an SD card for a raspberry pi. 

David Cameron 



-------- Original message --------
From: John <gielisj@...>
Date: 12/3/19 3:29 PM (GMT-08:00)
To: IRLP <IRLP@irlp.groups.io>
Subject: PS: [IRLP] IRLP OS and USB Drive

Also, I doubt whether you can copy, verbatim, the content of a ISO CD to a USB
stick, and expect IT to boot.

I will stand corrected !! :)

John

On 4/12/2019 9:25 am, John wrote:
> Hi Phil,
>
> I would suggest checking the BIOS on that MB to see it it allows a USB port to
> be bootable.
>
> 73 John@6163
>
>> On 4/12/2019 9:10:20 AM, Phil Zocco (n1bow@...) wrote:
>> > Greetings, IRLPers.
>>
>> I am in the process of updating node 5960 to a DN2800MT motherboard and an
>> SSD. I was able to find a board complete with 4G of memory on ebay.
>>
>> I have also been able to burn the ISO image Version 12.07 to a CD.
>> The only thing is in that clearing out my box of PC junk, I threw away my old
>> CD-ROMs.
>>
>> Then I noticed that the MB has no IDE port but it as a number of USB ports.
>> And the MB has SATA ports so using a PNY 120G SSD should work.
>>
>> My question is this: once I have burned the image to a CD, can I simply copy
>> all of the files from the CD to a USB drive and use that to install the IRLP
>> OS? IOW, will the USB drive be bootable?
>>
>> Thanks in advance.
>>
>>
>> 73,
>>
>> Phil N1BOW
>>
>>
>>
>>



Re: IRLP OS and USB Drive

bruce clements
 

Phil..
Here's the issue I had.
I'm using a pc client booting from a usb stick.
The stick contacts became intermittent. 
So I decided to upgrade to something that is still supported.
If your new motherboard is the same structure as my thin client I have just done upgrade using a bootable usb stick with Irlp Iso on it.

I can tell you how I did it if it's compatible. 

Bruce Ve3bv 




Sent from my Galaxy Tab® E

-------- Original message --------
From: Phil Zocco <n1bow@...>
Date: 2019-12-03 6:10 PM (GMT-05:00)
To: IRLP@irlp.groups.io
Subject: [IRLP] IRLP OS and USB Drive

Greetings, IRLPers.

I am in the process of updating node 5960 to a DN2800MT motherboard and an SSD. I was able to find a board complete with 4G of memory on ebay.

I have also been able to burn the ISO image Version 12.07 to a CD.

The only thing is in that clearing out my box of PC junk, I threw away my old CD-ROMs.

Then I noticed that the MB has no IDE port but it as a number of USB ports. And the MB has SATA ports so using a PNY 120G SSD should work.

My question is this: once I have burned the image to a CD, can I simply copy all of the files from the CD to a USB drive and use that to install the IRLP OS? IOW, will the USB drive be bootable?

Thanks in advance.


73,

Phil N1BOW





PS: [IRLP] IRLP OS and USB Drive

John
 

Also, I doubt whether you can copy, verbatim, the content of a ISO CD to a USB stick, and expect IT to boot.

I will stand corrected !! :)

John

On 4/12/2019 9:25 am, John wrote:
Hi Phil,
I would suggest checking the BIOS on that MB to see it it allows a USB port to be bootable.
73 John@6163

On 4/12/2019 9:10:20 AM, Phil Zocco (n1bow@...) wrote:
Greetings, IRLPers.
I am in the process of updating node 5960 to a DN2800MT motherboard and an SSD. I was able to find a board complete with 4G of memory on ebay.

I have also been able to burn the ISO image Version 12.07 to a CD.
The only thing is in that clearing out my box of PC junk, I threw away my old CD-ROMs.

Then I noticed that the MB has no IDE port but it as a number of USB ports. And the MB has SATA ports so using a PNY 120G SSD should work.

My question is this: once I have burned the image to a CD, can I simply copy all of the files from the CD to a USB drive and use that to install the IRLP OS? IOW, will the USB drive be bootable?

Thanks in advance.


73,

Phil N1BOW



Re: IRLP OS and USB Drive

John
 

Hi Phil,

I would suggest checking the BIOS on that MB to see it it allows a USB port to be bootable.

73 John@6163

On 4/12/2019 9:10:20 AM, Phil Zocco (n1bow@...) wrote:
Greetings, IRLPers.
I am in the process of updating node 5960 to a DN2800MT motherboard and an SSD. I was able to find a board complete with 4G of memory on ebay.
I have also been able to burn the ISO image Version 12.07 to a CD. The only thing is in that clearing out my box of PC junk, I threw away my old CD-ROMs.
Then I noticed that the MB has no IDE port but it as a number of USB ports. And the MB has SATA ports so using a PNY 120G SSD should work.
My question is this: once I have burned the image to a CD, can I simply copy all of the files from the CD to a USB drive and use that to install the IRLP OS? IOW, will the USB drive be bootable?
Thanks in advance.
73,
Phil N1BOW


IRLP OS and USB Drive

Phil Zocco
 

Greetings, IRLPers.

I am in the process of updating node 5960 to a DN2800MT motherboard and an SSD. I was able to find a board complete with 4G of memory on ebay.

I have also been able to burn the ISO image Version 12.07 to a CD.

The only thing is in that clearing out my box of PC junk, I threw away my old CD-ROMs.

Then I noticed that the MB has no IDE port but it as a number of USB ports. And the MB has SATA ports so using a PNY 120G SSD should work.

My question is this: once I have burned the image to a CD, can I simply copy all of the files from the CD to a USB drive and use that to install the IRLP OS? IOW, will the USB drive be bootable?

Thanks in advance.


73,

Phil N1BOW


Re: WAV file audio

Butch Bussen
 

Same here. I am totally blind, so need sighted help to get the irlp computer on the network, and I don't have anyone here. Once I can talk to it with my windows box, I can do most things. K9DC was kind enough to help me get a node up and running a couple years ago. At the moment, my main node 3148 doesn't see the network. I have a long cable run to a wireless bridge which talks to my router. Still trying to trouble shoot that problem. Hope to have 3148 back soon. I don't have a way to tesst the cable other than replace it, so still trying to figure out where the problem is.
73
Butch
WA0VJR
Node 3148
Wallace, ks.

On Wed, 27 Nov 2019, AG0N-3055 wrote:



On Nov 27, 2019, at 16:53, David Cameron - IRLP <dcameron@...> wrote:

With the advent of Pi-based systems, there is not a real reason not to upgrade to something newer. I imagine with the cost of electricity, you will recoup your up front cost in a matter of a year or two.
It really isn’t a matter of cost. It is a matter of age. I no longer work on this stuff at all and don’t feel I am competent to. In fact, with the medical problems I’ve had this year I wouldn’t have had time to even look at it. It works, I don’t break it. I would have to replace it with a complete system that was plugNplay. I’ve often wondered what I would do if it crashed catastrophically, perhaps one of yours, Dave.

Gary - AG0N - 3055


Re: IRLP COS is not operating

David Cameron - IRLP
 

What happens if you swap the polarity of the COS (from L to H), does it work in reverse? What I would also try is applying the ground to the COS polarity jumper and then "flex" the board in various directions. It may be as simple as a cold solder joint.

The polarity and the lockout jumpers must be in place and have good connectivity for the COS to work at all. The Logic Select is not as important.

The circuit is just a voltage comparator. COS voltage versus voltage from the Logic Level circuit (either 2.7V or 1.0V). There is a dual comparator on board, one for logic high, one for low. The output from that is put through an AND gate with the PTT.

I have had people send in boards for repair with similar symptoms, but it always ended up being something in the wiring and not the board. Usually it is that the ground potential of the radio and the computer were significantly different, and the comparator would not work because the logic represented swings like +10v to +6V, or the voltages would show as negative to the COS.

If you want to send the board for repair, the way it works is send me the board with $30US or $40 CDN. I will try to repair it, and send it back, or if not repairable give you the options to get it back as is, or provide you the $40 off a new one. Contact me directly for more info.

Dave Cameron
VE7LTD

On 02/12/2019 1:19 a.m., @Rtech wrote:
Version 3. Purchased 2016. & I have tried running a jumper to ground from the COS pin with the jumper in the low position. No change. Can not light the COS light


Re: IRLP COS is not operating

k9dc
 

What is the voltage when NOT receiving a signal?
-k9dc

On Dec 2, 2019, at 04:13, @Rtech wrote:

+Pin voltage from the radio has no change between working and not working. roughly 4 - 4.1 volts when recieving a signal.


Re: IRLP COS is not operating

bruce clements
 

Looks like hardware. Like Dave said it's just a logic circuit.

There is a drawing on line of a home brewed version 2 board, BUT it will only give you an idea of the operation.. since version 3 uses SMT construction it might be better to buy a new one.

Bruce Ve3bv 



Sent from my Galaxy Tab® E

-------- Original message --------
From: Rtech.ralph@...
Date: 2019-12-02 4:19 AM (GMT-05:00)
To: IRLP@irlp.groups.io
Subject: Re: [IRLP] IRLP COS is not operating

Version 3. Purchased 2016. & I have tried running a jumper to ground from the COS pin with the jumper in the low position. No change. Can not light the COS light


Re: IRLP COS is not operating

Ralph
 

Version 3. Purchased 2016. & I have tried running a jumper to ground from the COS pin with the jumper in the low position. No change. Can not light the COS light


Re: IRLP COS is not operating

Ralph
 

At this point, much more not working then working. 
Unit has been in service same radio, same location & power supply etc for almost 3 years
I have added a ground from the body of the node (connected to the main bus) to the shack ground & the Negative B+ with no change 


Re: IRLP COS is not operating

Ralph
 

+Pin voltage from the radio has no change between working and not working. roughly 4 - 4.1 volts when recieving a signal. 


Re: IRLP COS is not operating

David Cameron - IRLP
 

Very rare that it would be intermittent like this. Next time it acts up, I would check all your GROUND between the radio and the board. Often if there is a bad ground, the voltage potential can be too low to trigger the COS.

Also, try changing the position of the LGC LVL jumper.

The whole COS system is simple logic, nothing more.

Dave Cameron
VE7LTD

On 01/12/2019 5:15 p.m., @Rtech wrote:
I have an issue. If the node is powered down for extended time, I can turn it and the radio on & all works normal.
After running for some time (sometimes for a couple of hours sometime a couple of days) the node will stop working.
When it fails, the COS light on the board fails to turn on when a signal is received.
I can use the console and log into a noce or the Echo Test.
The radio will transmit the audi it receives from the internet perfectly
The board will acknowledge the DTMF tones it sees by flashing the DTMF light on the board.
It will not illuminate the COS light & will not pass the commands on to the internet
It will not pass the voice transmitted into the radio on to the internet.

I have tried different radios. (Icom & Yeasu) that require different set up on the COS jumper.
When i watch the pin for the COS while the radio is actively receiving, the icom shows 4.2 volts @ the COS input pin (DB() as well as at the centre pin of the jumper (with the jumper removed) Same with the Yeasu drops to 0.1 Volt at the COS pin when in receive.
Pin test the wire harness from DB9 to the Header pin OK.
Check by substitution the db9-header pin cable. I have access to an old V3 board and subberd in the harness from it (obviously no audio but it keys the transmitter when announcing IP and Node Activation.

Myassumption, failed component level repair required on the IRLP board.

My limited knowledge of how the system works would suggest that this is not a firmware/ software issue.

Any other suggestion gratefully accepted or information on where to send the board for repair if that is available.

Or  Is there an expedite method available for ordering a replacement board?

Ralph Garnett
VA6RHG
Node 1188


Re: IRLP COS is not operating

bruce clements
 

I agree it's not port forwarding...

I would take the cos line and remove it from the db9. Solder a wire to the cos pin on the db9 and connect it to the cos signal from the radio.  I would use a alligator clip..
When the cos fails , disconnect the wire from the cos from the radio. Take the db9 connection and put on ground. If the led fails to light it's hardware.
If it's a older version 2 board I had a transistor issue and I replaced it.

If it's a version 3 contact irlp guys and buy a new one.

Bruce Ve3bv 



Sent from my Galaxy Tab® E

-------- Original message --------
From: "Teton Amateur Radio Repeater Association (TARRA)" <tarra@...>
Date: 2019-12-01 8:59 PM (GMT-05:00)
To: IRLP@irlp.groups.io
Subject: Re: [IRLP] IRLP COS is not operating

Port forwarding (or lack of) isn't going to affect the hardware.

I think you may need to be a little clearer on what is going on with the COR. With just the same radio, what does it measure when it is working and what does it measure when it it isn't working?

Mick - W7CAT
Node 3464

----- Original Message -----
From: "Milt Duquette via Groups.Io"
To: IRLP@irlp.groups.io
Sent: Sunday, December 01, 2019 06:23:58 PM
Subject: Re: [IRLP] IRLP COS is not operating

> Ralph, did u change service providers and did u do the port forwarding through the new isp?
> > On Dec 1, 2019, at 6:16 PM, rtech.ralph@... wrote:
> >
> > ?I have an issue. If the node is powered down for extended time, I can turn it and the radio on & all works normal.
> > After running for some time (sometimes for a couple of hours sometime a couple of days) the node will stop working.
> > When it fails, the COS light on the board fails to turn on when a signal is received.
> > I can use the console and log into a noce or the Echo Test.
> > The radio will transmit the audi it receives from the internet perfectly
> > The board will acknowledge the DTMF tones it sees by flashing the DTMF light on the board.
> > It will not illuminate the COS light & will not pass the commands on to the internet
> > It will not pass the voice transmitted into the radio on to the internet.
> >
> > I have tried different radios. (Icom & Yeasu) that require different set up on the COS jumper.
> > When i watch the pin for the COS while the radio is actively receiving, the icom shows 4.2 volts @ the COS input pin (DB() as well as at the centre pin of the jumper (with the jumper removed) Same with the Yeasu drops to 0.1 Volt at the COS pin when in receive.
> > Pin test the wire harness from DB9 to the Header pin OK.
> > Check by substitution the db9-header pin cable. I have access to an old V3 board and subberd in the harness from it (obviously no audio but it keys the transmitter when announcing IP and Node Activation.
> >
> > Myassumption, failed component level repair required on the IRLP board.
> >
> > My limited knowledge of how the system works would suggest that this is not a firmware/ software issue.
> >
> > Any other suggestion gratefully accepted or information on where to send the board for repair if that is available.
> >
> > Or Is there an expedite method available for ordering a replacement board?
> >
> > Ralph Garnett
> > VA6RHG
> > Node 1188
> >
>
>
>
>
--


Re: IRLP COS is not operating

Teton Amateur Radio Repeater Association (TARRA)
 

Port forwarding (or lack of) isn't going to affect the hardware.

I think you may need to be a little clearer on what is going on with the COR. With just the same radio, what does it measure when it is working and what does it measure when it it isn't working?

Mick - W7CAT
Node 3464

----- Original Message -----
From: "Milt Duquette via Groups.Io"
To: IRLP@irlp.groups.io
Sent: Sunday, December 01, 2019 06:23:58 PM
Subject: Re: [IRLP] IRLP COS is not operating

> Ralph, did u change service providers and did u do the port forwarding through the new isp?
> > On Dec 1, 2019, at 6:16 PM, rtech.ralph@... wrote:
> >
> > ?I have an issue. If the node is powered down for extended time, I can turn it and the radio on & all works normal.
> > After running for some time (sometimes for a couple of hours sometime a couple of days) the node will stop working.
> > When it fails, the COS light on the board fails to turn on when a signal is received.
> > I can use the console and log into a noce or the Echo Test.
> > The radio will transmit the audi it receives from the internet perfectly
> > The board will acknowledge the DTMF tones it sees by flashing the DTMF light on the board.
> > It will not illuminate the COS light & will not pass the commands on to the internet
> > It will not pass the voice transmitted into the radio on to the internet.
> >
> > I have tried different radios. (Icom & Yeasu) that require different set up on the COS jumper.
> > When i watch the pin for the COS while the radio is actively receiving, the icom shows 4.2 volts @ the COS input pin (DB() as well as at the centre pin of the jumper (with the jumper removed) Same with the Yeasu drops to 0.1 Volt at the COS pin when in receive.
> > Pin test the wire harness from DB9 to the Header pin OK.
> > Check by substitution the db9-header pin cable. I have access to an old V3 board and subberd in the harness from it (obviously no audio but it keys the transmitter when announcing IP and Node Activation.
> >
> > Myassumption, failed component level repair required on the IRLP board.
> >
> > My limited knowledge of how the system works would suggest that this is not a firmware/ software issue.
> >
> > Any other suggestion gratefully accepted or information on where to send the board for repair if that is available.
> >
> > Or Is there an expedite method available for ordering a replacement board?
> >
> > Ralph Garnett
> > VA6RHG
> > Node 1188
> >
>
>
>
>
--


Re: IRLP COS is not operating

Milt Duquette
 

Ralph,  did u change service providers and did u do the port forwarding through the new isp?



On Dec 1, 2019, at 6:16 PM, rtech.ralph@... wrote:

I have an issue. If the node is powered down for extended time, I can turn it and the radio on & all works normal. 
After running for some time (sometimes for a couple of hours sometime a couple of days) the node will stop working.
When it fails, the COS light on the board fails to turn on when a signal is received.
I can use the console and log into a noce or the Echo Test. 
The radio will transmit the audi it receives from the internet perfectly
The board will acknowledge the DTMF tones it sees by flashing the DTMF light on the board. 
It will not illuminate the COS light & will not pass the commands on to the internet
It will not pass the voice transmitted into the radio on to the internet. 

I have tried different radios. (Icom & Yeasu) that require different set up on the COS jumper. 
When i watch the pin for the COS while the radio is actively receiving, the icom shows 4.2 volts @ the COS input pin (DB() as well as at the centre pin of the jumper (with the jumper removed) Same with the Yeasu drops to 0.1 Volt at the COS pin when in receive. 
Pin test the wire harness from DB9 to the Header pin OK.
Check by substitution the db9-header pin cable. I have access to an old V3 board and subberd in the harness from it (obviously no audio but it keys the transmitter when announcing IP and Node Activation. 

Myassumption, failed component level repair required on the IRLP board. 

My limited knowledge of how the system works would suggest that this is not a firmware/ software issue.

Any other suggestion gratefully accepted or information on where to send the board for repair if that is available. 

Or  Is there an expedite method available for ordering a replacement board?

Ralph Garnett 
VA6RHG
Node 1188


IRLP COS is not operating

Ralph
 

I have an issue. If the node is powered down for extended time, I can turn it and the radio on & all works normal. 
After running for some time (sometimes for a couple of hours sometime a couple of days) the node will stop working.
When it fails, the COS light on the board fails to turn on when a signal is received.
I can use the console and log into a noce or the Echo Test. 
The radio will transmit the audi it receives from the internet perfectly
The board will acknowledge the DTMF tones it sees by flashing the DTMF light on the board. 
It will not illuminate the COS light & will not pass the commands on to the internet
It will not pass the voice transmitted into the radio on to the internet. 

I have tried different radios. (Icom & Yeasu) that require different set up on the COS jumper. 
When i watch the pin for the COS while the radio is actively receiving, the icom shows 4.2 volts @ the COS input pin (DB() as well as at the centre pin of the jumper (with the jumper removed) Same with the Yeasu drops to 0.1 Volt at the COS pin when in receive. 
Pin test the wire harness from DB9 to the Header pin OK.
Check by substitution the db9-header pin cable. I have access to an old V3 board and subberd in the harness from it (obviously no audio but it keys the transmitter when announcing IP and Node Activation. 

Myassumption, failed component level repair required on the IRLP board. 

My limited knowledge of how the system works would suggest that this is not a firmware/ software issue.

Any other suggestion gratefully accepted or information on where to send the board for repair if that is available. 

Or  Is there an expedite method available for ordering a replacement board?

Ralph Garnett 
VA6RHG
Node 1188


Re: Node Update/Upgrade

k9dc
 

Mick,

DaveC used to do that with early generations of his embedded node, years ago when flash was very expensive. But with improvements in high availability (reliable) flash, he no longer does that. If you equip the Pi with high reliable flash (or SSD) you should be fine. Look for SLC (single level cell) flash. It sometimes is called ”Industrial Grade” and is spec’d to operate down to -40º.

Any RAM beyond 512 MB, is completely wasted if you are only running IRLP on the computer. I would skip the 4GB, save a few $$ and buy high quality flash instead. Then you have reduced the need to create a run from RAM configuration and can stay with a straight up IRLP installation.

I am still not a big fan of the Raspberry Pi for locations where reliability is very important, such as repeater sites with difficult physical access. But the Pi4 is way better than earlier models and is actually pretty impressive from a pure performance perspective. Solid 5V power and cabling is very critical.

-k9dc

On Nov 30, 2019, at 22:44, Teton Amateur Radio Repeater Association (TARRA) <tarra@...> wrote:

Hello Group,

While I am thinking about updating my node software, I am also thinking of upgrading my hardware. With the new Raspberry Pi4 that has 4 gigs of ram, I am wondering . . . Without a whole lot of trouble, can it be set up to copy the whole IRLP program (and OS) to ram on start up and then just copy the files that have been changed back to the SD card before shut down? Probably a good idea to copy the log files to the SD card on a regular basis while it running just to keep from losing them. There may be some other files that need saved as well, but not sure which ones they would be. Just trying to move operations away from running on the SD card so much.

Mick - W7CAT
Node 3464