Thank you...Daneil and John... My device configuration is as follows. CPU : intel Celeron M 1.60 Ghz DIMM : W/DDR 1GB ECC IDE(Primary Master) : Compact Flash (1 GB) IDE(Primary Master) : Compact Flash (256 GB)
My confusion is that if it is possible to customize the CentOS for my application.
Regards Vishak V Kurup
-----Original Message----- From: centos-devel-bounces@centos.org [mailto:centos-devel-bounces@centos.org] On Behalf Of John Summerfield Sent: Thursday, January 10, 2008 6:22 PM To: The CentOS developers mailing list. Subject: Re: [CentOS-devel] Using Centos as embedded linux.
Daniel de Kok wrote:
On 1/10/08, Vishak V. Kurup vishak.kurup@nestgroup.net wrote:
I am newbie to Centos. I would like to know if it is possible to use centos on embedded devices. Has any one done any thing similar? Please do reply with any comments �
That completely depends on the application. Currently a minimal system is fairly large (~400-~500MB IIRC). This may be OK for some embedded devices, and one or two orders of magnitude too large for other embedded devices.
I didn't think it was that small, unless you're talking about the amount of RAM needed to run recent anacondas:-)
If you need something much smaller (or a non-supported platform like ARM), I'd suggest looking at Busybox or a BSD operating system.
Debian is very popular on ARM; I think I read it has more Linux system on ARM than on IA32!.
The linksys wireless router, wrt54g runs Linux and there are alternative firmwares for it. Look for openwrt for info on that.
On 1/11/08, Vishak V. Kurup vishak.kurup@nestgroup.net wrote:
Thank you...Daneil and John... My device configuration is as follows. CPU : intel Celeron M 1.60 Ghz DIMM : W/DDR 1GB ECC IDE(Primary Master) : Compact Flash (1 GB) IDE(Primary Master) : Compact Flash (256 GB)
My confusion is that if it is possible to customize the CentOS for my application.
Sure, CentOS can run on such a machine. If it is worthwhile, depends on the application.
-- Daniel
Vishak V. Kurup wrote:
Thank you...Daneil and John... My device configuration is as follows. CPU : intel Celeron M 1.60 Ghz DIMM : W/DDR 1GB ECC IDE(Primary Master) : Compact Flash (1 GB) IDE(Primary Master) : Compact Flash (256 GB)
wooo 256 GB CF ?
Karanbir Singh wrote:
Vishak V. Kurup wrote:
Thank you...Daneil and John... My device configuration is as follows. CPU : intel Celeron M 1.60 Ghz DIMM : W/DDR 1GB ECC IDE(Primary Master) : Compact Flash (1 GB) IDE(Primary Master) : Compact Flash (256 GB)
wooo 256 GB CF ?
Whoops. I read that as 256 Mbyte. I wonder...
Vishak V. Kurup wrote:
Thank you...Daneil and John... My device configuration is as follows. CPU : intel Celeron M 1.60 Ghz DIMM : W/DDR 1GB ECC IDE(Primary Master) : Compact Flash (1 GB) IDE(Primary Master) : Compact Flash (256 GB)
My confusion is that if it is possible to customize the CentOS for my application.
Regards
I have installed centos-3 in a mini ITX with 256MB /RAM and 1GB CF (I was unable to find the 256GB one).. minimal install and then reduced further the disk usage. I customized it for our streaming customers (darkice+a heavily reduced centos). Text only
I have been thinking to slim centos by recompiling every RPM without the docs and several other tricks to make it less fatter.. of course it wont be the real centos but some sort of reduced copy.
BTW, I found that debian was easier to install in such a hardware and set aside my plans to reduce CentOS size.. but maybe one day I will get back to it.
regards epe
Ing. Ernesto Pérez Estévez a écrit :
Vishak V. Kurup wrote:
Thank you...Daneil and John... My device configuration is as follows. CPU : intel Celeron M 1.60 Ghz DIMM : W/DDR 1GB ECC IDE(Primary Master) : Compact Flash (1 GB) IDE(Primary Master) : Compact Flash (256 GB)
My confusion is that if it is possible to customize the CentOS for my application.
Regards
I have installed centos-3 in a mini ITX with 256MB /RAM and 1GB CF (I was unable to find the 256GB one).. minimal install and then reduced further the disk usage. I customized it for our streaming customers (darkice+a heavily reduced centos). Text only
Pretty same embedded system:: on a C3 1Ghz, 512 Mb of ram (256 for system memory and 256 in "ramdisk" to use /var and /tmp in read/write mode) and a 512Mb CF: The way to minimize is like other distro: rm -rf /usr/share/doc :)
And of course, vanish yum, and install apt-get :)
I have been thinking to slim centos by recompiling every RPM without the docs and several other tricks to make it less fatter.. of course it wont be the real centos but some sort of reduced copy.
BTW, I found that debian was easier to install in such a hardware and set aside my plans to reduce CentOS size.. but maybe one day I will get back to it.
regards epe
You can slim a Centos to .. 300Mo, it's working fine and let you about 215Mo for archiving and update features (glibc is the worst package to update :-/ )
At last, you can have a graphical desktop (xfce or a gnome desktop) in 512Mo i think, but maybe the manpages will be delete too.
Regards
js.
Ing. Ernesto Pérez Estévez wrote:
I have been thinking to slim centos by recompiling every RPM without the docs and several other tricks to make it less fatter.. of course it wont be the real centos but some sort of reduced copy.
rpm supports omitting docs. You might need to fiddle anaconda or yum to choose the right way.
BTW, I found that debian was easier to install in such a hardware
That's my thinking.
Vishak V. Kurup wrote:
Thank you...Daneil and John... My device configuration is as follows. CPU : intel Celeron M 1.60 Ghz DIMM : W/DDR 1GB ECC IDE(Primary Master) : Compact Flash (1 GB) IDE(Primary Master) : Compact Flash (256 GB)
My confusion is that if it is possible to customize the CentOS for my application.
It is. This is not your average embedded system:-) I's also possible to install a a bigger CF, I have 4 Gbytes in my camera (and wonder whether I really should have gone for eight).
I use CentOS & Scientific Linux, but for this _I_ might go for Debian or maybe Ubuntu Long Life. Depends on whether a GUI matters (GUI takes much disk and RAM), and what the particular application is.
Regards Vishak V Kurup
-----Original Message----- From: centos-devel-bounces@centos.org [mailto:centos-devel-bounces@centos.org] On Behalf Of John Summerfield Sent: Thursday, January 10, 2008 6:22 PM To: The CentOS developers mailing list. Subject: Re: [CentOS-devel] Using Centos as embedded linux.
Daniel de Kok wrote:
On 1/10/08, Vishak V. Kurup vishak.kurup@nestgroup.net wrote:
I am newbie to Centos. I would like to know if it is possible to use centos on embedded devices. Has any one done any thing similar? Please do reply with any comments �
That completely depends on the application. Currently a minimal system is fairly large (~400-~500MB IIRC). This may be OK for some embedded devices, and one or two orders of magnitude too large for other embedded devices.
I didn't think it was that small, unless you're talking about the amount of RAM needed to run recent anacondas:-)
If you need something much smaller (or a non-supported platform like ARM), I'd suggest looking at Busybox or a BSD operating system.
Debian is very popular on ARM; I think I read it has more Linux system on ARM than on IA32!.
The linksys wireless router, wrt54g runs Linux and there are alternative firmwares for it. Look for openwrt for info on that.
CentOS-devel mailing list CentOS-devel@centos.org http://lists.centos.org/mailman/listinfo/centos-devel
--On Friday, January 11, 2008 10:01 AM +0530 "Vishak V. Kurup" vishak.kurup@nestgroup.net wrote:
My device configuration is as follows. CPU : intel Celeron M 1.60 Ghz DIMM : W/DDR 1GB ECC IDE(Primary Master) : Compact Flash (1 GB) IDE(Primary Master) : Compact Flash (256 GB)
How big is that? I'm looking for an embedded Linux that would fit in a 3x3x1 inch box, with Ethernet and maybe an FPGA to do fast custom digital I/O (10 Mbps comm link to another device). I'm not doing data collection so don't need vast storage; my 2 GB micro SD card would be more than enough. But lots of memory would be nice and an FPU would be ideal. (I'm doing trig.)
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Kenneth Porter wrote: | --On Friday, January 11, 2008 10:01 AM +0530 "Vishak V. Kurup" | vishak.kurup@nestgroup.net wrote: | |> My device configuration is as follows. |> CPU : intel Celeron M 1.60 Ghz |> DIMM : W/DDR 1GB ECC |> IDE(Primary Master) : Compact Flash (1 GB) |> IDE(Primary Master) : Compact Flash (256 GB) | | How big is that? I'm looking for an embedded Linux that would fit in a | 3x3x1 inch box, with Ethernet and maybe an FPGA to do fast custom | digital I/O (10 Mbps comm link to another device). I'm not doing data | collection so don't need vast storage; my 2 GB micro SD card would be | more than enough. But lots of memory would be nice and an FPU would be | ideal. (I'm doing trig.)
You can do a lot with 1 GB disk if you stri things down correctly. But let's face it. It will no longer be Centos. Not by a long shot.
So I suggest anyone willing to start on this sort of adventures to use what has been developed allready for such applications and not trying to reinvent the weel for the zillionth time.
Just make sure you NEVER use flash for swap.
Hugo.
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A: Yes. >Q: Are you sure? >>A: Because it reverses the logical flow of conversation. >>>Q: Why is top posting frowned upon?
Bored? Click on http://spamornot.org/ and rate those images.
Hugo van der Kooij wrote:
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Kenneth Porter wrote: | --On Friday, January 11, 2008 10:01 AM +0530 "Vishak V. Kurup" | vishak.kurup@nestgroup.net wrote: | |> My device configuration is as follows. |> CPU : intel Celeron M 1.60 Ghz |> DIMM : W/DDR 1GB ECC |> IDE(Primary Master) : Compact Flash (1 GB) |> IDE(Primary Master) : Compact Flash (256 GB) | | How big is that? I'm looking for an embedded Linux that would fit in a | 3x3x1 inch box, with Ethernet and maybe an FPGA to do fast custom | digital I/O (10 Mbps comm link to another device). I'm not doing data | collection so don't need vast storage; my 2 GB micro SD card would be | more than enough. But lots of memory would be nice and an FPU would be | ideal. (I'm doing trig.)
You can do a lot with 1 GB disk if you stri things down correctly. But let's face it. It will no longer be Centos. Not by a long shot.
So I suggest anyone willing to start on this sort of adventures to use what has been developed allready for such applications and not trying to reinvent the weel for the zillionth time.
Some of us are curious about where to get such a large CF: see the second drive.
-
"Ing. Ernesto Pérez Estévez" -
Daniel de Kok -
Hugo van der Kooij -
jean-seb -
John Summerfield -
Karanbir Singh -
Kenneth Porter -
Vishak V. Kurup