22 Oct
2013
22 Oct
'13
12:03 p.m.
Don't buy crappy SD cards - i.e. PNY. That is especially true in an
application where it's used 24/7 as a solid state drive. Wear leveling in
flash is very important and crappy flash won't endure.
Assi
Kk7kx.ampr.org
-----Original Message-----
From: 44net-bounces+assi=kiloxray.com(a)hamradio.ucsd.edu
[mailto:44net-bounces+assi=kiloxray.com@hamradio.ucsd.edu] On Behalf Of
kb9mwr(a)gmail.com
Sent: Tuesday, October 22, 2013 8:59 AM
To: 44net(a)hamradio.ucsd.edu
Subject: Re: [44net] Raspberry Pi
(Please trim inclusions from previous messages)
_______________________________________________
It's funny how you though going away from a moving disk hard-drive would be
a good thing.
Anyway here are my experiences. I have several Pi's in use. I have had a
lot of head aches with PNY SD Cards. They go bad in rather short order. I
have had a few Sandisk cards that have been in use just over a year. I have
yet to have a problem with Sandisk.
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22 Oct
22 Oct
12:19 p.m.
New subject: Raspberry Pi
Brian et al,
Myself I use 2,5" WD 500GB HDD SATA black - 5 years warranty!
Best regards.
Tom sp2lob
2:44 p.m.
New subject: Raspberry Pi
I have a 1tb usb external that I want to use...I don't even want to use
the sd card but I guess I'm forced to just to boot...
On 13-10-22 01:19 PM, sp2lob@tlen wrote:
(Please trim inclusions from previous messages)
_______________________________________________
Brian et al,
Myself I use 2,5" WD 500GB HDD SATA black - 5 years warranty!
Best regards.
Tom sp2lob
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3:05 p.m.
New subject: Raspberry Pi
SD card is the _must_ for Pi to boot...
To my knowledge - there is no other choice.
Best regards.
Tom - sp2lob
5:26 p.m.
New subject: Raspberry Pi
Yes, the Pi boots from the SD, but one can put files on an attached drive,
especially swap, database, and logs. With a little configuration one could
probably put everything except the boot configuration on an external drive
and never write to the SD.
------------------------------
John D. Hays
K7VE
PO Box 1223, Edmonds, WA 98020-1223
<http://k7ve.org/blog> <http://twitter.com/#!/john_hays>
<http://www.facebook.com/john.d.hays>
On Tue, Oct 22, 2013 at 12:05 PM, <sp2lob(a)tlen.pl> wrote:
(Please trim inclusions from previous messages)
______________________________**_________________
SD card is the _must_ for Pi to boot...
To my knowledge - there is no other choice.
Best regards.
Tom - sp2lob
______________________________**___________
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5:33 p.m.
New subject: Raspberry Pi
Indeed, if you put the /boot on the SD and make sure you use and
initrd that has USB support that has been loaded by the time the
kernel will mount the root device, you can use the USB disk for all
the rest.
On Tue, Oct 22, 2013 at 11:26 PM, K7VE - John <k7ve(a)k7ve.org> wrote:
> (Please trim inclusions from previous messages)
> _______________________________________________
> Yes, the Pi boots from the SD, but one can put files on an attached drive,
> especially swap, database, and logs. With a little configuration one could
> probably put everything except the boot configuration on an external drive
> and never write to the SD.
>
>
> ------------------------------
> John D. Hays
> K7VE
> PO Box 1223, Edmonds, WA 98020-1223
> <http://k7ve.org/blog> <http://twitter.com/#!/john_hays>
> <http://www.facebook.com/john.d.hays>
>
>
> On Tue, Oct 22, 2013 at 12:05 PM, <sp2lob(a)tlen.pl> wrote:
>
>> (Please trim inclusions from previous messages)
>> ______________________________**_________________
>> SD card is the _must_ for Pi to boot...
>> To my knowledge - there is no other choice.
>>
>> Best regards.
>> Tom - sp2lob
>>
>> ______________________________**___________
>> 44Net mailing list
>> 44Net(a)hamradio.ucsd.edu
>>
http://hamradio.ucsd.edu/**mailman/listinfo/44net<http://hamradio.ucsd.e…
>> http://www.ampr.org/donate.**html <http://www.ampr.org/donate.html>
>>
>
5:40 p.m.
New subject: Raspberry Pi
Hi all,
If we are to use an external harddrive and an external USB Hub, why
not get a mini-ITX MBO powered with 12V and a small mini-ITX box? This
way we can have a decent CPU which is also low power in electricity
not low in computing power (about 30 watts total).
I think the RPi is only good in portable apps, but then again the SD
Card is a major handicap. It could be good for applications that are
not 24/7/365, such as an event where an AMPRnet GATEWAY is desired
only for a few hours or maybe a few days max. If you operate the SD
Card for more than a few days, it might get destroyed from the
constant write of log files, updating databases etc.
Can we have a system with no writting on the disk all the time? I'm not sure.
73 de Demetre SV1UY
On Wed, Oct 23, 2013 at 12:26 AM, K7VE - John <k7ve(a)k7ve.org> wrote:
> (Please trim inclusions from previous messages)
> _______________________________________________
> Yes, the Pi boots from the SD, but one can put files on an attached drive,
> especially swap, database, and logs. With a little configuration one could
> probably put everything except the boot configuration on an external drive
> and never write to the SD.
>
>
> ------------------------------
> John D. Hays
> K7VE
> PO Box 1223, Edmonds, WA 98020-1223
> <http://k7ve.org/blog> <http://twitter.com/#!/john_hays>
> <http://www.facebook.com/john.d.hays>
>
>
> On Tue, Oct 22, 2013 at 12:05 PM, <sp2lob(a)tlen.pl> wrote:
>
>> (Please trim inclusions from previous messages)
>> ______________________________**_________________
>> SD card is the _must_ for Pi to boot...
>> To my knowledge - there is no other choice.
>>
>> Best regards.
>> Tom - sp2lob
>>
>> ______________________________**___________
>> 44Net mailing list
>> 44Net(a)hamradio.ucsd.edu
>>
http://hamradio.ucsd.edu/**mailman/listinfo/44net<http://hamradio.ucsd.e…
>> http://www.ampr.org/donate.**html <http://www.ampr.org/donate.html>
>>
>
5:49 p.m.
New subject: Raspberry Pi
On Wed, Oct 23, 2013 at 12:40:32AM +0300, Demetre SV1UY wrote:
Can we have a system with no writting on the disk all
the time? I'm not sure.
The technique used to do this in embedded systems is often to have the
variable filesystems (/tmp, /var) mounted on a RAMdisk. At boot time
the RAMdisk is created and a stored image restored onto it from the main
flash. At system shutdown time, a new /var image is generated and stored
to flash. Thus flash is only written to when the system is regenerated.
Swap is disabled.
This would be difficult to do with the Pi because it is so limited in
main memory, but it works on larger systems just fine. I've had a FreeBSD
box running this way (with flash, no hard drive) for several years.
- Brian
6:05 p.m.
New subject: Raspberry Pi
Yep Brian,
I have 2 FreeNAS Boxes here that boot from a USB memory stick, but one
has 8GB RAM and the other 4GB RAM.
Poor RPi has either 356MB or 512MB RAM. I have 2 of them and they have
destroyed 2 SD Cards up to now! No good for a 24/7/365 AMPRnet GATEWAY
that has a ull time BBS and an IGATE!
Might be good for emergency work that lasts a few hours of a couple of
days, but no more.
73 de Demetre SV1UY
On Wed, Oct 23, 2013 at 12:49 AM, Brian Kantor <Brian(a)ucsd.edu> wrote:
(Please trim inclusions from previous messages)
_______________________________________________
On Wed, Oct 23, 2013 at 12:40:32AM +0300, Demetre SV1UY wrote:
--
73 de SV1UY
Demetre Ch. Valaris
e-mail: demetre.sv1uy(a)gmail.com
Radio e-mail: sv1uy(a)winlink.org
(to use my radio e-mail put //WL2K in the beginning of the subject line)
http://www.qsl.net/sv1uy
Can we have a system with no writting on the disk
all the time? I'm not sure.
The technique used to do this in embedded systems is often to have the
variable filesystems (/tmp, /var) mounted on a RAMdisk. At boot time
the RAMdisk is created and a stored image restored onto it from the main
flash. At system shutdown time, a new /var image is generated and stored
to flash. Thus flash is only written to when the system is regenerated.
Swap is disabled.
This would be difficult to do with the Pi because it is so limited in
main memory, but it works on larger systems just fine. I've had a FreeBSD
box running this way (with flash, no hard drive) for several years.
- Brian
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2:01 p.m.
New subject: Raspberry Pi
I must chime in I have had bad luck with PNY USB Sticks SD Cards PC RAM...
Kingston seems to be the best going.. Just my 2c
Jerry Kutche
Electrical Supervisor
Lehigh Cement Company LLC
180 N. Meridian Road
Mitchell, IN 47446
Phone: (812) 849-2191 ext. 252
Fax: (812) 849-5007
Cell: (812) 583-0445
jkutche(a)lehighcement.com
www.lehighcement.com
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-----Original Message-----
From: 44net-bounces+jkutche=lehighcement.com(a)hamradio.ucsd.edu
[mailto:44net-bounces+jkutche=lehighcement.com@hamradio.ucsd.edu] On Behalf Of Assi
Friedman
Sent: Tuesday, October 22, 2013 12:04 PM
To: 'AMPRNet working group'
Subject: Re: [44net] Raspberry Pi
(Please trim inclusions from previous messages)
_______________________________________________
Don't buy crappy SD cards - i.e. PNY. That is especially true in an application where
it's used 24/7 as a solid state drive. Wear leveling in flash is very important and
crappy flash won't endure.
Assi
Kk7kx.ampr.org
-----Original Message-----
From: 44net-bounces+assi=kiloxray.com(a)hamradio.ucsd.edu
[mailto:44net-bounces+assi=kiloxray.com@hamradio.ucsd.edu] On Behalf Of
kb9mwr(a)gmail.com
Sent: Tuesday, October 22, 2013 8:59 AM
To: 44net(a)hamradio.ucsd.edu
Subject: Re: [44net] Raspberry Pi
(Please trim inclusions from previous messages)
_______________________________________________
It's funny how you though going away from a moving disk hard-drive would be
a good thing.
Anyway here are my experiences. I have several Pi's in use. I have had a
lot of head aches with PNY SD Cards. They go bad in rather short order. I
have had a few Sandisk cards that have been in use just over a year. I have
yet to have a problem with Sandisk.
_________________________________________
44Net mailing list
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3860
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3860
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9 comments
9 participants
participants (9)
-
Assi Friedman -
Brian Kantor -
Demetre SV1UY -
jj -
K7VE - John -
Kutche, Jerry (Mitchell) USA -
Robbie De Lise -
sp2lob＠tlen -
sp2lob＠tlen.pl