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Re: [Ltib] LTIB for Raspberry Pi


From: Stuart Hughes
Subject: Re: [Ltib] LTIB for Raspberry Pi
Date: Mon, 01 Oct 2012 11:56:46 +0100
User-agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.2.28) Gecko/20120313 Lightning/1.0b2 Thunderbird/3.1.20

Hi Sean,

My preference would be to store the script and prompt the user at the end of the post_install script to run this by hand and tell them what commands to run. That way they need to figure out if it's safe and if they have plugged in an SD card in the right place etc.

Regards, Stuart

On 01/10/12 09:49, Sean C. Malloy wrote:
Re: sudo

I can think of 3 courses of action:

1) make LTIB run the post-install script as root, eliminating the need for sudo.

2) change LTIB to prompt the user to add mount and loconfig(?) to their sudoers 
file

3) change the the rpi's post-install script to do nothing; put the shell script 
that makes the SD card image in the platform directory, and let the user run it 
manually.

Sent from my iPhone

On Oct 1, 2012, at 3:05 AM, Stuart Hughes<address@hidden>  wrote:

Hi Mike,

I second your comment about sudo, you should be able to automate builds and so 
prompting users is not really practical.

Toolchains can be stored at the GPP, but this is dependent on being sure that 
anything stored on the GPP has a freely distributable license.  You'd expect 
that toolchains should be okay as gcc/binutils/glibc are GPL, but I worry that 
if this is derived from some commercial vendors variant they may have something 
in there that cannot be distributed.

Also, due to ISP limitation (2 minute timeout) toolchains generally need to be 
FTP'd to the GPP, the upload script won't usually succeed before the time 
limit.  Also if we do put the toolchain there, we must have all the 
corresponding sources used to build the toolchain uploaded to.  Maybe it's 
worth resurrecting the ability of LTIB to download from places other than the 
GPP?

Regards, Stuart

On 30/09/12 13:48, Mike Goins wrote:
On Wed, Sep 26, 2012 at 7:15 PM, Sean Malloy<address@hidden>   wrote:
      there will be a RC3 of rpi_boot.tar.gz that contains this license
      file and up-to-date /boot code
      from https://github.com/raspberrypi/firmware/tree/master/boot.
RC3 of rpi_boot*.diff.gz is available.
Reviewing the patch now and running the build.  Just a few more questions.

"Be sure to run "sync" before removing the card from the reader."

I have found that running "blockdev --flushbufs /dev/[blockdev]" is
much better at flushing out to block devices since sync concerns
itself primarily with file-systems.  I'm not sure if newer versions of
sync do this automatically.  We may consider adding this to the
mksdimage script.

Speaking of which.  The post build script prompts for sudo password.
This is a bit unconventional for ltib (and tougher for some automation
systems, but doable).  Like your note said, probably needs to be moved
to deployment since ltib somehow is capable of doing these types of
operations (not sure how myself, but looking at it now).   It may be
possible to put this operation in the rpi_boot.spec since that is run
as root (and is relatively easy to do).

What is the license on the original toolchain?  I failed to find it
anywhere in the github files we used to create the RPM.   I am sure it
is permissive, but wanted to make sure.

Stuart, is it feasible to keep list member generated toolchains at the
GPP?  Sean, can you find out if the maintainer of the current tools at
github is willing to accept and check in our rpm version of the
toolchain?  This may be the best alternative if not using GPP.

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