[Geany-Users] proper upgrade technique

Sat Nov 14 22:16:33 UTC 2020

On Sun, 15 Nov 2020 at 00:21, Colomban Wendling
<lists.ban at herbesfolles.org> wrote:
>
> Le 11/11/2020 à 22:21, Geoff Kaniuk a écrit :
> > The best I can do is to report that several Debian users have come
> > across this kind of problem. For example,  someone asked: "Why is it so
> > bad to have /usr/sbin in PATH?" The answer given in the forums was
> > "Because sbin contains programs and scripts only executable by root".
>
> This makes sense, but what's weird is that you don't have it when under
> root with sudo:
>
> $ sudo env | grep PATH
> PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
>
> Basically your sudo probably doesn't reset enough of the environment,
> which makes it harder to use and less secure (keeping PATH for example
> is dangerous as it might trick you into running a program you didn't
> expect, if someone hijacked your PATH).
>
> I don't think I altered my sudo configuration, so I'm not sure why you
> do have what you have (but I'm under Debian, not Ubuntu), but e.g. my
> /etc/sudoers contain this (among other things):
>
> > Defaults        env_reset
> > Defaults        secure_path="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"
>
> Anyway, you're not alone with such a configuration that doesn't reset
> most of the environment (you can find similar problems on the Web), and
> that causes issues.  I'm still not sure where that comes from, as I'm
> almost positive I never touched this myself (and I checked on another
> machine as well) so that it'd be Debian's default.  I'm not sure what
> Ubuntu does, but it kind of sounds odd to me they would not have
> env_reset be the default, or include sbin the sudo's path.
>
> I'd recommend you to triple check whether your sudo config is as you
> want it, and if you don't know, make sure it's Ubuntu's default.  Do
> *NOT* trust the bits I pasted, as it's a highly sensitive configuration,
> only use sources you trust and know what they are doing (e.g. the
> manual, Debian/Ubuntu's maintainer, and… that's about what I'd trust).
> If you're using all the expected defaults from Ubuntu, then I'd check if
> they document how to do run admin commands like that.
>
> All this said, for the problem at hand if it's indeed problematic with
> stock Ubuntu setups, maybe we could go the sad way and hardcode
> ldconfig's path;

Can we? AFAICT all ldconfig invocations are generated by autofools,
and seem to be of the form "finish_cmds='PATH="\$PATH:/sbin" ldconfig
-m $libdir'" so it doesn't expect sbin in PATH anyway.

Cheers
Lex

> it's a hack for Ubuntu's broken ldconfig configuration
> anyway, so it should not trigger anywhere else and we can thus use
> Ubuntu's ldconfig path.  I'd rather avoid that if possible so the hack
> is less specific and could work on other problematic setups, but well,
> yout can't always get what you want.
>
> Regards,
> Colomban
>
> >
> > Debian used to support gksu to get root access from a virtual terminal,
> > but that is dropped in Buster.
> >
> > Anyway, sudo -s is useful to know!
> >
> > Geoff
> >
> > 33 Ashbury Close, Cambridge CB1 3RW 01223 710582
> >
> > On 11/11/2020 11:38, Lex Trotman wrote:
> >> On Wed, 11 Nov 2020 at 21:31, Geoff Kaniuk <geoff at kaniuk.co.uk> wrote:
> >>>
> >>> I do not think I have modified $PATH from system settings:
> >>> --------------------------------------------------------
> >>> ~$ echo $PATH
> >>> /usr/local/bin:/usr/bin:/bin:/usr/local/games:/usr/games
> >>> --------------------------------------------------------
> >>
> >> Your "whereis" puts ldconfig in /sbin/ but thats not in your PATH,
> >> thats the problem.  I don't use debian, so I don't know why your PATH
> >> is so limited.  By default my Mint has:
> >>
> >> /usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/snap/bin
> >>
> >>
> >> Cheers
> >> Lex
> >>
> >>>
> >>> Geoff
> >>>
> >>> 33 Ashbury Close, Cambridge CB1 3RW 01223 710582
> >>>
> >>> On 11/11/2020 00:24, Lex Trotman wrote:
> >>>> Whats your PATH?
> >>>>
> >>>> On Wed, 11 Nov 2020 at 09:07, Geoff Kaniuk <geoff at kaniuk.co.uk> wrote:
> >>>>>
> >>>>> As far as I know, nothing special. But in Debian Buster:
> >>>>> ---------------------------------------------------------
> >>>>> ~$ whereis ldconfig
> >>>>> ldconfig: /sbin/ldconfig /usr/share/man/man8/ldconfig.8.gz
> >>>>> ---------------------------------------------------------
> >>>>>
> >>>>> The error message I got was:
> >>>>> ---------------------------------------------------------
> >>>>> /home# make install
> >>>>> ...
> >>>>> /bin/bash: line 3: ldconfig: command not found
> >>>>> make[4]: *** [Makefile:1660: fix-ubuntu-libdir] Error 127
> >>>>> --------------------------------------------------------
> >>>>>
> >>>>> There is some more information in the Debian forums:
> >>>>> http://forums.debian.net/viewtopic.php?f=17&t=147179
> >>>>>
> >>>>>
> >>>>> Geoff
> >>>>>
> >>>>> 33 Ashbury Close, Cambridge CB1 3RW 01223 710582
> >>>>>
> >>>>> On 10/11/2020 19:50, Frank Lanitz wrote:
> >>>>>> On 09.11.20 14:17, Geoff Kaniuk wrote:
> >>>>>>> 6. ~$ sudo make install
> >>>>>>> On Debian that failed because of path problems locating ldconfig.
> >>>>>>
> >>>>>> This is unexpected for me. Running Debian for >10 years now and never
> >>>>>> seen that need before. Do you have any special sh-configuration?
> >>>>>>
> >>>>>> .f
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