[gentoo-embedded] Success in getting a Minimal Gentoo

[gentoo-embedded] Success in getting a Minimal Gentoo

[Ow Mun Heng]

Yay.. My 1st post here and by following the links below, I managed to a
minimal gentoo system running right now.

NOthing much is in there, only boots me up to the kernel and that's
about it. 

Next, need to put in iptables/shorewall/dropbear/dhcp(which would be
recommended?)/freevo(that's the main purpose)/xorg-x11/firefox

any recommendations? yeah.. I believe that all devel should be done on
my devel box (laptop) and then transferred to the SBC right? (in this
case, my SBC is vmware)

Thoughts? Comments?

http://www.bulah.com/embeddedgentoo.html
http://dev.gentoo.org/~iggy/uclibc/cross-build.sh
http://dev.gentoo.org/~iggy/uclibc/gentoo-uclibc-HOWTO
http://www.livejournal.com/users/lotso/50177.html

-- 
Ow Mun Heng
Gentoo/Linux on DELL D600 1.4Ghz 1.5GB RAM
98% Microsoft(tm) Free!! 
Neuromancer 22:18:09 up 1 day, 20 min, 4 users, load average: 0.92,
0.73, 0.78 


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Re: [gentoo-embedded] Success in getting a Minimal Gentoo

[Ned Ludd]

On Sun, 2005-06-19 at 22:21 +0800, Ow Mun Heng wrote:
> Yay.. My 1st post here and by following the links below, I managed to a
> minimal gentoo system running right now.
> 
> NOthing much is in there, only boots me up to the kernel and that's
> about it. 
> 
> Next, need to put in iptables/shorewall/dropbear/dhcp(which would be
> recommended?)/freevo(that's the main purpose)/xorg-x11/firefox

You can drop dhcp3 and just use the udhcpd provided by busybox.



-- 
Ned Ludd <solar@gentoo.org>

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HELP Re: [gentoo-embedded] Success in getting a Minimal Gentoo

[Ow Mun Heng]

On Sun, 2005-06-19 at 12:41 -0400, Ned Ludd wrote:
> On Sun, 2005-06-19 at 22:21 +0800, Ow Mun Heng wrote:
> > 
> > NOthing much is in there, only boots me up to the kernel and that's
> > about it. 
> > 
> > Next, need to put in iptables/shorewall/dropbear/dhcp(which would be
> > recommended?)/freevo(that's the main purpose)/xorg-x11/firefox
> 
> You can drop dhcp3 and just use the udhcpd provided by busybox.

Okay.. Cool But even before I get that. dropbear doesn't start.
For some reason, it can't find it. (but i can execute it on the cli with
no issues. even dropbearkey works)

/bin/ash: /etc/init.d/dropbear: not found

I initially had the same problem when trying to run busybox as well. Had
to re-emerge it.

One more question, how do I load the things to run? using inittab? Do I
need to put anything here or will the rcS script actually do it for me.
(looking at the script, it looks like it will do it automatically ?)

# now run any rc scripts
::sysinit:/etc/init.d/rcS



-- 
Ow Mun Heng
Gentoo/Linux on DELL D600 1.4Ghz 1.5GB RAM
98% Microsoft(tm) Free!! 
Neuromancer 10:05:16 up 1 day, 12:07, 7 users, load average: 1.70, 1.21,
1.40 


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Re: HELP Re: [gentoo-embedded] Success in getting a Minimal Gentoo

[michael]

On Mon, 20 Jun 2005, Matthew Cline wrote:

>> Dropbear doesn't really work (it didn't even before this, I finally saw
>> the reason was due to no ttys to allocate (pty_allocate: openpty no such
>> file or directory)
>>
>> I can ssh in but it will hang as it can't allocate a tty for the
>> session.
>>
>> I'm sure I compiled in unixptys.
>>
>
> I think you need to mount an addtional filesystem on /dev/pts in order
> to get this to work, something like this:
>
> mount -t devpts /dev/pts
>
I think you also need to create a few things (directories and/or files). 
Search the archives for "pty" and my name - I had the same problem and 
someone replied with a script to do the needed work.

Michael
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Re: HELP Re: [gentoo-embedded] Success in getting a Minimal Gentoo

[michael]

On Mon, 20 Jun 2005, Ow Mun Heng wrote:

...

>>
>> One more thing. Alhtough it does state it has an IP, but ifconfig eth0
>> yields no IP at all.
>>
>> Why?
>
>
> I found the solution, (of sorts). It seems that I needed to copy over
> some scripts from the udhcp tarball into the embedded system for it to
> function.
>
> the scripts are sample.* in the tarball and they're to be copied into
> the embedded's filesystem. (I copied it into /etc/udhcpc and edited
> sample.script to reflect that change)
>
> Now, udhcpc will get the IP and the routes and DNS.

It would be wonderful if you could provide the exact steps you took so that 
Heath can update his document with this. Heath, any particular format
you prefer?

Michael
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Re: HELP Re: [gentoo-embedded] Success in getting a Minimal Gentoo

[Ow Mun Heng]

On Mon, 2005-06-20 at 10:22 +0800, Ow Mun Heng wrote: 
> On Sun, 2005-06-19 at 12:41 -0400, Ned Ludd wrote:
> > On Sun, 2005-06-19 at 22:21 +0800, Ow Mun Heng wrote:
> > > 
> > > NOthing much is in there, only boots me up to the kernel and that's
> > > about it. 
> > > 
> > > Next, need to put in iptables/shorewall/dropbear/dhcp(which would be
> > > recommended?)/freevo(that's the main purpose)/xorg-x11/firefox
> > 
> > You can drop dhcp3 and just use the udhcpd provided by busybox.
> 
> Okay.. Cool But even before I get that. dropbear doesn't start.
> For some reason, it can't find it. (but i can execute it on the cli with
> no issues. even dropbearkey works)
> 
> /bin/ash: /etc/init.d/dropbear: not found

Okay... I see this _may_ be due to me not having /sbin/runscript when
using baselayout-lite. (but even running it on the cli with "dropbear
-F" just drops me back to the cli, it's not doing anything)

But how do I solve this? And Do I need runscript or?? Right now, not
even the pcnet32 network card works (am running/trying it out under
vmware)

/ps : am re-compiling my kernel to support pcnet32 within the kernel and
not as modules to re-try.


Thanks for all the help.

> I initially had the same problem when trying to run busybox as well. Had
> to re-emerge it.
> 
> One more question, how do I load the things to run? using inittab? Do I
> need to put anything here or will the rcS script actually do it for me.
> (looking at the script, it looks like it will do it automatically ?)
> 
> # now run any rc scripts
> ::sysinit:/etc/init.d/rcS
> 
> 
> 

-- 
Ow Mun Heng
Gentoo/Linux on DELL D600 1.4Ghz 1.5GB RAM
98% Microsoft(tm) Free!! 
Neuromancer 10:50:42 up 1 day, 12:53, 8 users, load average: 0.65, 0.64,
0.92 



-- 
gentoo-embedded@gentoo.org mailing list

Re: HELP Re: [gentoo-embedded] Success in getting a Minimal Gentoo

[Ow Mun Heng]

On Mon, 2005-06-20 at 11:48 +0800, Ow Mun Heng wrote:
> On Mon, 2005-06-20 at 10:22 +0800, Ow Mun Heng wrote: 
> > On Sun, 2005-06-19 at 12:41 -0400, Ned Ludd wrote:
> > > On Sun, 2005-06-19 at 22:21 +0800, Ow Mun Heng wrote:
> > > > 

> > > > Next, need to put in iptables/shorewall/dropbear/dhcp(which would be
> > > > recommended?)/freevo(that's the main purpose)/xorg-x11/firefox
> > > 
> > > You can drop dhcp3 and just use the udhcpd provided by busybox.
> > 
> > Okay.. Cool But even before I get that. dropbear doesn't start.
> > For some reason, it can't find it. (but i can execute it on the cli with
> > no issues. even dropbearkey works)
> > 
> > /bin/ash: /etc/init.d/dropbear: not found
> 
> Okay... I see this _may_ be due to me not having /sbin/runscript when
> using baselayout-lite. (but even running it on the cli with "dropbear
> -F" just drops me back to the cli, it's not doing anything)
> 
> But how do I solve this? And Do I need runscript or?? Right now, not
> even the pcnet32 network card works (am running/trying it out under
> vmware)

> /ps : am re-compiling my kernel to support pcnet32 within the kernel and
> not as modules to re-try.

Okay.. done with the re-compile, ifconfig eth0 up brings up the
device... then doing the udhcpc -f gets me "Ooh! Got some!" and it gets
an IP(i can see this from the host system where dhcp is running) but for
some reason, (or is it like this by design?) it doesn't create the
default routes etc via DHCP. it also complains
of /share/udhcpc/default.script is not found. (this is a busybox package
and I don't have a /share directory in my embedded Filesystem)


Dropbear now runs though. :-)

but netstat gives me funny results

tcp	0	0	*:22	*:*
netstat: no support for 'AF INET6 (tcp)' on this system (same for udp
and raw)

I believe this is cause if no IPV6 support compiled in?? (but dropbear
runs and has a port open. but I can't get in)

Is there a need for initscripts in embedded platforms or everything runs
from /etc/inittab? If yes, how do I specify it? Or it isn't needed?


> 

-- 
Ow Mun Heng
Gentoo/Linux on DELL D600 1.4Ghz 1.5GB RAM
98% Microsoft(tm) Free!! 
Neuromancer 13:41:40 up 1 day, 15:44, 7 users, load average: 0.48, 0.31,
0.22 


-- 
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Re: HELP Re: [gentoo-embedded] Success in getting a Minimal Gentoo

[Ow Mun Heng]

On Mon, 2005-06-20 at 13:50 +0800, Ow Mun Heng wrote:
> On Mon, 2005-06-20 at 11:48 +0800, Ow Mun Heng wrote:
> > On Mon, 2005-06-20 at 10:22 +0800, Ow Mun Heng wrote: 
> > > On Sun, 2005-06-19 at 12:41 -0400, Ned Ludd wrote:
> > > > On Sun, 2005-06-19 at 22:21 +0800, Ow Mun Heng wrote:
> > > > > 
> 
> > > > > Next, need to put in iptables/shorewall/dropbear/dhcp(which would be
> > > > > recommended?)/freevo(that's the main purpose)/xorg-x11/firefox
> > > > 
> > > > You can drop dhcp3 and just use the udhcpd provided by busybox.
> > > 
> > > Okay.. Cool But even before I get that. dropbear doesn't start.
> > > For some reason, it can't find it. (but i can execute it on the cli with
> > > no issues. even dropbearkey works)
> > > 
> > > /bin/ash: /etc/init.d/dropbear: not found
> > 
> > Okay... I see this _may_ be due to me not having /sbin/runscript when
> > using baselayout-lite. (but even running it on the cli with "dropbear
> > -F" just drops me back to the cli, it's not doing anything)
> > 
> > But how do I solve this? And Do I need runscript or?? Right now, not
> > even the pcnet32 network card works (am running/trying it out under
> > vmware)
> 
> > /ps : am re-compiling my kernel to support pcnet32 within the kernel and
> > not as modules to re-try.
> 
> Okay.. done with the re-compile, ifconfig eth0 up brings up the
> device... then doing the udhcpc -f gets me "Ooh! Got some!" and it gets
> an IP(i can see this from the host system where dhcp is running) but for
> some reason, (or is it like this by design?) it doesn't create the
> default routes etc via DHCP. it also complains
> of /share/udhcpc/default.script is not found. (this is a busybox package
> and I don't have a /share directory in my embedded Filesystem)

One more thing. Alhtough it does state it has an IP, but ifconfig eth0
yields no IP at all.

Why?

> 
> 
> Dropbear now runs though. :-)
> 
> but netstat gives me funny results
> 
> tcp	0	0	*:22	*:*
> netstat: no support for 'AF INET6 (tcp)' on this system (same for udp
> and raw)
> 
> I believe this is cause if no IPV6 support compiled in?? (but dropbear
> runs and has a port open. but I can't get in)
> 
> Is there a need for initscripts in embedded platforms or everything runs
> from /etc/inittab? If yes, how do I specify it? Or it isn't needed?
> 
> 
> > 
> 
> -- 
> Ow Mun Heng
> Gentoo/Linux on DELL D600 1.4Ghz 1.5GB RAM
> 98% Microsoft(tm) Free!! 
> Neuromancer 13:41:40 up 1 day, 15:44, 7 users, load average: 0.48, 0.31,
> 0.22 
> 
> 

-- 
Ow Mun Heng
Gentoo/Linux on DELL D600 1.4Ghz 1.5GB RAM
98% Microsoft(tm) Free!! 
Neuromancer 13:57:09 up 1 day, 15:59, 7 users, load average: 1.07, 0.52,
0.33 


-- 
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Re: HELP Re: [gentoo-embedded] Success in getting a Minimal Gentoo

[Ow Mun Heng]

On Mon, 2005-06-20 at 13:57 +0800, Ow Mun Heng wrote:
> On Mon, 2005-06-20 at 13:50 +0800, Ow Mun Heng wrote:
> > On Mon, 2005-06-20 at 11:48 +0800, Ow Mun Heng wrote:
> > > On Mon, 2005-06-20 at 10:22 +0800, Ow Mun Heng wrote: 
> > > > On Sun, 2005-06-19 at 12:41 -0400, Ned Ludd wrote:
> > > > > On Sun, 2005-06-19 at 22:21 +0800, Ow Mun Heng wrote:
> > > > > > 
> > 
> > > > > > Next, need to put in iptables/shorewall/dropbear/dhcp(which would be
> > > > > > recommended?)/freevo(that's the main purpose)/xorg-x11/firefox
> > > > > 
> > > > > You can drop dhcp3 and just use the udhcpd provided by busybox.
> > > > 
> > > > Okay.. Cool But even before I get that. dropbear doesn't start.
> > > > For some reason, it can't find it. (but i can execute it on the cli with
> > > > no issues. even dropbearkey works)
> > > > 
> > > > /bin/ash: /etc/init.d/dropbear: not found
> > > 
> > > Okay... I see this _may_ be due to me not having /sbin/runscript when
> > > using baselayout-lite. (but even running it on the cli with "dropbear
> > > -F" just drops me back to the cli, it's not doing anything)
> > > 
> > > But how do I solve this? And Do I need runscript or?? Right now, not
> > > even the pcnet32 network card works (am running/trying it out under
> > > vmware)
> > 
> > > /ps : am re-compiling my kernel to support pcnet32 within the kernel and
> > > not as modules to re-try.
> > 
> > Okay.. done with the re-compile, ifconfig eth0 up brings up the
> > device... then doing the udhcpc -f gets me "Ooh! Got some!" and it gets
> > an IP(i can see this from the host system where dhcp is running) but for
> > some reason, (or is it like this by design?) it doesn't create the
> > default routes etc via DHCP. it also complains
> > of /share/udhcpc/default.script is not found. (this is a busybox package
> > and I don't have a /share directory in my embedded Filesystem)
> 
> One more thing. Alhtough it does state it has an IP, but ifconfig eth0
> yields no IP at all.
> 
> Why?


I found the solution, (of sorts). It seems that I needed to copy over
some scripts from the udhcp tarball into the embedded system for it to
function.

the scripts are sample.* in the tarball and they're to be copied into
the embedded's filesystem. (I copied it into /etc/udhcpc and edited
sample.script to reflect that change)

Now, udhcpc will get the IP and the routes and DNS.

Dropbear doesn't really work (it didn't even before this, I finally saw
the reason was due to no ttys to allocate (pty_allocate: openpty no such
file or directory)

I can ssh in but it will hang as it can't allocate a tty for the
session.

I'm sure I compiled in unixptys. 

-- 
Ow Mun Heng
Gentoo/Linux on DELL D600 1.4Ghz 1.5GB RAM
98% Microsoft(tm) Free!! 
Neuromancer 16:37:49 up 1 day, 18:40, 8 users, load average: 1.53, 1.09,
1.16 


-- 
gentoo-embedded@gentoo.org mailing list

Re: HELP Re: [gentoo-embedded] Success in getting a Minimal Gentoo

[Matthew Cline]

> Dropbear doesn't really work (it didn't even before this, I finally saw
> the reason was due to no ttys to allocate (pty_allocate: openpty no such
> file or directory)
> 
> I can ssh in but it will hang as it can't allocate a tty for the
> session.
> 
> I'm sure I compiled in unixptys.
> 

I think you need to mount an addtional filesystem on /dev/pts in order
to get this to work, something like this:

mount -t devpts /dev/pts

I'm not in front of my linux box right now, this syntax might not be
100% correct. Of course, you can also add a relevant entry to
/etc/fstab.

 HTH,

Matt

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Re: [gentoo-embedded] Success in getting a Minimal Gentoo

[Ned Ludd]

On Sun, 2005-06-19 at 22:21 +0800, Ow Mun Heng wrote:

[stuff]

> Ow Mun Heng
> Gentoo/Linux on DELL D600 1.4Ghz 1.5GB RAM
                        ^^   
BTW not sure if it's a hoax or not but... 
http://www.chromance.de/wtf/lol.htm


> 98% Microsoft(tm) Free!! 
> Neuromancer 22:18:09 up 1 day, 20 min, 4 users, load average: 0.92,
> 0.73, 0.78 
> 
> 
-- 
Ned Ludd <solar@gentoo.org>

-- 
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Re: [gentoo-embedded] Success in getting a Minimal Gentoo

[Ow Mun Heng]

On Mon, 2005-06-20 at 14:54 -0400, Ned Ludd wrote:
> On Sun, 2005-06-19 at 22:21 +0800, Ow Mun Heng wrote:
> 
> [stuff]
> 
> > Ow Mun Heng
> > Gentoo/Linux on DELL D600 1.4Ghz 1.5GB RAM
>                         ^^   
> BTW not sure if it's a hoax or not but... 
> http://www.chromance.de/wtf/lol.htm

Link doesn't work

-- 
Ow Mun Heng
Gentoo/Linux on DELL D600 1.4Ghz 1.5GB RAM
98% Microsoft(tm) Free!! 
Neuromancer 22:52:41 up 2 days, 9:39, 4 users, load average: 1.08, 0.92,
0.91 


-- 
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Re: [gentoo-embedded] Success in getting a Minimal Gentoo

[Ned Ludd]

On Thu, 2005-06-30 at 22:52 +0800, Ow Mun Heng wrote:
> On Mon, 2005-06-20 at 14:54 -0400, Ned Ludd wrote:
> > On Sun, 2005-06-19 at 22:21 +0800, Ow Mun Heng wrote:
> > 
> > [stuff]
> > 
> > > Ow Mun Heng
> > > Gentoo/Linux on DELL D600 1.4Ghz 1.5GB RAM
> >                         ^^   
> > BTW not sure if it's a hoax or not but... 
> > http://www.chromance.de/wtf/lol.htm
> 
> Link doesn't work

oh well it did ten days ago when I sent this reply.


> 
> -- 
> Ow Mun Heng
> Gentoo/Linux on DELL D600 1.4Ghz 1.5GB RAM
> 98% Microsoft(tm) Free!! 
> Neuromancer 22:52:41 up 2 days, 9:39, 4 users, load average: 1.08, 0.92,
> 0.91 
> 
> 
-- 
Ned Ludd <solar@gentoo.org>

-- 
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