Petalinux settings.sh problem

[ilya1976]

Good day,

I use Ubuntu 10.04 installed as virtual machine, and Vivado 2013.4.

When I installed Petalinux and ran source settings.sh (page 5 UG976 (v2013.04))

first time, all messages appeared as on this page.

But when I ran source settings.sh after this, I get the warning:

PetaLinux environment set to '/home/ilyag/petalinux-v2013.04-final-full'
WARNING: /bin/sh is not bash!
bash is PetaLinux recommended shell. Please set your default shell to bash.

How can I fix it?

Thanks.

[yenigal]

Hi

Check below links

http://forums.xilinx.com/t5/Embedded-Linux/Petalinux-Build-errors/td-p/160426

http://forums.xilinx.com/t5/New-Users-Forum/Trouble-installing-the-petalinux-SDK-in-Ubuntu/td-p/431976

[ilya1976]

Hi Satish,

Thank you for replying me.

I've tried both links, but it didn't help,

I see the same warning.

[jeffrey.johnson]

This is what worked for me. First make sure your SHELL is /bin/bash by using this command:

chsh -s /bin/bash

You will have to log out and log back in, then you can then check it by typing "echo $SHELL". Then make /bin/sh link to /bin/bash:

sudo rm /bin/sh

sudo ln -s /bin/bash /bin/sh

[sudhiratsamsung]

Works like charm. Thank You!

[djoconnor]

This seems like a bug to me.

If a script wants to be run in bash its first line should be..

#!/bin/bash

Rather than assuming /bin/sh is bash (which it isn't in, say, Ubuntu)

[jeffsimpson]

With a normal shell script, that'd be the way to do it. settings.sh isn't meant to be run, though - it's meant to be sourced by your already-running shell, setting up environment variables like PATH. Just running it won't actually do anything useful because scripts can't change environment variables of the shell that called them.

You could maybe set it up to launch bash and source that script, but then you can just do exactly that manually anyway by just typing "bash" and then "source settings.sh" :)

[dbinnun-e3]

Worked for me as well
Thanks!

[sabankocal]

Hi @jeffrey.johnson ,

Your solution is also worked for me, thanks a lot.

[g2cacheq]

But the scripts that require bash should expressly call bash - this is something that should be fixed in petalinux and not require a user to modify default (and perfectly acceptable) shell settings.

Especially since the recommended workaround in the docs (using dpkg to change your default shell) do not work - and you have to manually delete and recreate symbolic links from /bin/sh to /bin/bash.

[mtoumi]

On Ubuntu just run the following command: sudo dpkg-reconfigure dash

Select "NO" (instead of YES) and it will default to BASH. It is a very clean way of doing it.