Re: [PATCH v4 1/5] expand-on-first-boot: support resizing a btrfs

["Roberto A. Foglietta" <roberto.foglietta@gmail.com>]

On Tue, 13 Dec 2022 at 22:06, Henning Schild <henning.schild@siemens.com> wrote:
>
> Am Tue, 13 Dec 2022 21:44:01 +0100
> schrieb "Roberto A. Foglietta" <roberto.foglietta@gmail.com>:
>
> > On Tue, 13 Dec 2022 at 18:18, Henning Schild
> > <henning.schild@siemens.com> wrote:
> > >
> > > Am Tue, 13 Dec 2022 17:45:23 +0100
> > > schrieb "Roberto A. Foglietta" <roberto.foglietta@gmail.com>:
> > >
> > > > On Tue, 13 Dec 2022 at 11:15, <henning.schild@siemens.com> wrote:
> > > >
> > > > >
> > > > > +MOUNT_POINT=$(mktemp -d -p "" "$(basename "$0").XXXXXXXXXX")
> > > >
> > > > this uses /tmp which could not be available
> > >
> > > The remark from Felix triggered the switch from '-p "/mnt"' to '-p
> > > ""', one can set TMPDIR if that does not work.
> > >
> > > A valid remark, while yours seems made up just to keep trolling
> > > around in the whole discussion. Stop it please.
> >
> > Please Hanning, tell to it to my ubuntu - she has some issue to
> > understand your slang
>
> My name is "Henning" and yours is not Joe!
>
> > roberto:~$ export TMPDIR=/dev/shm
> > roberto:~$ mktemp -d -p "" ciao.XXXXX
> > /dev/shm/ciao.X3wlT
> >
> > Ah, oops - in this following way it working, instead
> >
> > roberto:~$ mktemp -d -p "$TMPDIR" ciao.XXXXX
> > /dev/shm/ciao.jQFYr
>
> Not sure what i see here but it looks like both temporary directories
> have been created under TMPDIR with -p "" and with -p "$TMPDIR".

What Felix tried to tell you was to use a variable like in my patch
but using TMPDIR as the name of the variable. When that variable is
not defined then "" is the default value. Now, what happens to mktemp
when it is called with -p ""? Nothing bad, it simply performs without
-p. Why was Felix pointing this out? Probably because in my patch tmp
variable should be set if null but using mktemp this is not necessary
anymore.

>
> I like the "ciao" since it seems to suggest you are willing to leave
> it.
>

I have the light sensation that after two and more months needed to
solve an issue that we solved in 2 days after my intervention in this
list... ciao is for you.

> Henning
>
> > Possibly you did not catch the Felix suggestion? LOL
> >
> > Ciao, R-
>