[arch-dev-public] install scripts in core

Allan McRae allan at archlinux.org
Sat Jan 31 12:08:28 EST 2009

Dan McGee wrote:
> On Sat, Jan 31, 2009 at 7:18 AM, Allan McRae <allan at archlinux.org> wrote:
>> Thomas Bächler wrote:
>>> Allan McRae schrieb:
>>>> fakeroot
>>>>  echo (coreutils)
>>> echo is a shell builtin, /bin/echo will never be used.
>>> <snip>
>>> As I said, echo is a shell builtin, and unless we call /bin/echo
>>> explicitly, the builtin will be used (it's not only a builtin in bash, but
>>> also dash, so we should be fine). We could replace 'cat XYZ | command' with
>>> 'command < XYZ'.
>>>> The install scripts for lilo and vi also fail if bash is not installed
>>>> (for some unknown reason).  Lilo is just and old style "/bin/true" script so
>>>> is easily fixed but I do not understand these two issues...
>>> No idea here too, maybe one of the commands calls /bin/sh or so. Making
>>> lilo and vi depend on "sh" or so is okay IMO.
>> The echo stuff is just as weird as what is happening with vi and lilo.  But
>> I can replicate the for errors the packages using echo with both
>> makchrootpkg and "pacman -Sr <root> pkg".  Installing bash before these
>> packages fixes the issue (dash does not).   Anyone know what is causing
>> this?
> Yes- /bin/sh is a symlink to /bin/bash, in the bash package. dash
> cannot install this symlink as it would obviously conflict (although
> if Ubuntu can do it...). Pacman simply shells out to /bin/sh, so if
> you create the relevant symlink, things will just work with dash as
> well.

OK, that explains why dash does not help, but why are those install 
scripts failing?  Are you saying that the system needs bash installed 
before it can run post_install scripts?  More directly to the issue, why 
do post_install scripts with "echo" in them fail if bash is not 
installed when others seem to run fine (or at least do not report an error)?


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