Pierre Labastie wrote:
On 22/11/2015 04:06, Chris Staub wrote:
On 11/21/2015 06:15 PM, Felix wrote:
2.4. Setting The $LFS Variable
http://www.linuxfromscratch.org/lfs/view/7.8-systemd/chapter02/aboutlfs
.html
Hi,
after many years of knowing about LFS I finally decided to give it a
try!.
As you can see I am only just begun :-)
My host system is Ubuntu Gnome 15.10.
I believe that Ubuntu uses dash as default shell, however based upon
the recommendation in the book I installed bash.
I then deleted the link /bin/sh to dash and recreated it to /bin/bash.
Then as section 2.4 I created the files .bash_profile for my user and
for root with the line:
export LFS=/mnt/lfs
However, testing this with echo $LFS in all sorts of ways, including
rebooting, sudo su - , sudo echo $LFS , etc. showed that the
.bash_profile was not being respected.
I searched the mailing list archives and found the following post:
http://lists.linuxfromscratch.org/pipermail/blfs-support/2013-February/
072064.html
which gave me the answer to my problem.
I would like to respectfully suggest that this information could be
mentioned in Section 2.4 of the book.
Thank you.
There is no need for that, it won't happen for the lfs user if you're
following the book. And, if you're referring to that being set for root,
there's no real need to put that in .bashrc or .bash_profile since they're
only used a few times. Plus, we don't know what shell you might be using for
root, so we can't be sure you're even using bash.
Well, I respectfully disagree: the book tells explicitely in a note (page 2.4.
Setting the $LFS variable) that "One way to ensure that the LFS variable is
always set is to edit the .bash_profile file in both your personal home
directory and in /root/.bash_profile and enter the export command above." So I
think Felix's request is legitimate. Something like "if your shell is called
/bin/sh, use .profile instead of .bash_profile" could be added to the note.
OK, I've added a sentence to the note:
In addition, the shell specified in the
<filename>/etc/passwd</filename> file for all users that need the
<envar>LFS</envar> variable needs to be bash to ensure that the
<filename>/root/.bash_profile</filename> file is incorporated as a part of
the login process.
I'll note here that placing 'export LFS=/mnt/lfs' in .profile doesn't work
because the syntax is bash specific.
-- Bruce
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