Re: [gentoo-user] Heads Up - switching to profile 17.1 is not as easy as it sounds

[Davyd McColl]

On Tue, 11 Jun 2019 at 12:34, Helmut Jarausch <jarausch@××××××.be> wrote:

> I had some trouble switching to the new profile 17.1.
> Following the advice in the news item didn't suffice.
>
> I had to reinstall some packages "by hand", e.g.
> I had to reinstall util-linux quite early.
> I had to reinstall x11-libs/libva without the opengl USE flag, since it
> couldn't find libopenGL otherwise.
>
> After reinstalling mesa (which depends on libva), I'll try to reinstall
> x11-libs/libva with the opengl USE flag.
>
> Currently I'm reemerging gcc bintuils glibc before I proceed with the
> other packages selected by
> emerge -v1 /usr/lib/gcc /lib32 /usr/lib32
>
> Perhaps, it's only me.
>
> It isn't. It took me a few days to switch up to 17.1/plasma (because of
pesky things like sleep and work).

first off, `emerge -v1 /lib /lib32` didn't work out because I had an old
library in there I
had to remove with `emerge --depclean` first. I also have an old install of
sickbeard, which
I had to remove from world for the same reason: `emerge -v1 /lib /lib32`
would just complain
about not being able to find an installable source (my words -- can't
remember the original
terms), but it didn't really look like an error -- all green text.

I thought I'd just hitch on to the recommended line after that in the news
item: `emerge -ev @world`,
which would periodically break, usually in the configure stage. I didn't
know this before, but it seems
that `emerge -e @world` does not merge in dependency order. (Is there a way
to make it do so?)

I started with hunting down and applying `emerge -1` with deps which didn't
work, eg:
`eix {whatever the last thing complained about}`
(look for package which is already installed, and "seems right")
`emerge -1 {whatever I found}`

However, it seems that a bigger hammer may have just worked as well, as I
resorted to this after about 20
or so hand-helped packages:
`emerge -ev @world --keep-going`
followed by
`emerge --resume`
as many times as were necessary until there were no errors in the output.

I also had to manually remove a symlink for libidns.so.11, which was in
/usr/lib64, but pointing at /usr/lib
(so ld was complaining after every install) and I had to manually remove
/lib32, after doing `equery b /lib32`
and all the results mentioning `(lib)` in the line, so I _assumed_ that
meant that equery was dereferencing
/lib32.

On that note, does anyone know of a way to figure out what atom a symlink
belongs to? Not what it points at
-- `equery b /usr/lib64/libidn.so.11` told me that it belonged to libidns,
probably because it was dereferencing
to /usr/lib/libidn.so, which eventually dereferences to
/usr/lib/libidn.so.12.6.0, which _does_ belong to libidn,
but what finally gave me the confidence to delete it was to spelunk through
the output of `emerge -1 libidn`
and see that there was no `.11.so` symlink, so I deleted it, and, out of
paranoia, rebuilt -- and it didn't re-appear.

It would have been great to have been able to run `equery b
/usr/lib64/libidn.so.11` and get back nothing, to know
"for sure" that it's an invalid link, and I assume there's a way to do so
that I'm just not aware of?

-d

Helmut
>
>

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