Matti Nykyri <[email protected]> [14-12-20 19:48]:
> > On Dec 20, 2014, at 17:56, [email protected] wrote:
> >
> > Dale <[email protected]> [14-12-20 02:47]:
> >> [email protected] wrote:
> >>> Dale <[email protected]> [14-12-19 17:08]:
> >>>> Mick wrote:
> >>>>> Meino, to avoid misunderstandings: 1. Emerge the new gcc package. 2.
> >>>>> Use gcc-config to change to the new gcc version. 3. Run 'env-update &&
> >>>>> source /etc/profile'. 4. Run fix_libtool_files.sh, although I would
> >>>>> think that this is redundant these days. 5. Unmerge the old gcc version.
> >>>> I don't recall ever running fix_libtool_files.sh after switching gcc
> >>>> versions. Usually when I see a gcc upgrade, I emerge it, switch to it
> >>>> and the usual profile thing, run emerge -e world JUST to be safe, then
> >>>> unmerge the old gcc. That's all I usually do here. I have skipped the
> >>>> emerge -e world a time or two.
> >>>>
> >>>> Am I just lucky, not likely as some may know, or does emerge -e world
> >>>> catch it or what? Now I'm curious.
> >>>>
> >>>> Dale
> >>>>
> >>>> :-) :-)
> >>> Hi Dale,
> >>>
> >>> I started compiling the new gcc this morning about ~7:00 AM...just a
> >>> few minutes ago stage3 finishes. Now ... before doing anything else...
> >>> I am makeing a backup of all that, so...if anything fails...I am able
> >>> to reinstall the status quo.
> >>>
> >>> I will keep you informed, what happens to my little embedded system...
> >>>
> >>> Best
> >>> Meino
> >>
> >> That's the thing about slow systems, you want to do it right the first
> >> time because it takes to much time to repeat something. Heck, I have a
> >> 4 core AMD CPU with 16GBs of ram here and I still would rather do it
> >> right the first time. If you have something slow that takes days to do
> >> something, you really want plan A to work.
> >>
> >> I'm also wondering if there have been changes to emerge that could make
> >> a difference. I run the latest unstable non *9999 version. I sorta
> >> like having all the new improvements. I'm just not sure if that affects
> >> the issue here is all.
> >>
> >> Dale
> >>
> >> :-) :-)
> >
> > Hi,
> >
> > after a few more non-booting-systems and backup-reinstalls I think
> > I know whats the reason is...but by I dont know how to get out of it:
> >
> > The system becomes inaccessible if I do an env-update and reboot.
> >
> > Reason for that are binaries, in which the path to the old gcc is
> > hardcoded. With the sdcard mounted I checked that with my PC:
> > I did a
> >
> > grep -r '\/usr\/lib\/gcc\/armv7a-hardfloat-linux-gnueabi\/4.7.3'
> >
> > on ALL files of the sdcard and found "thousands" of hardcoded links
> > to the old gcc inside binaries...
> >
> > The new gcc installed but not doing env-update implies that any
> > further compilation will link to the old gcc.
> >
> > Doing env-update implies a system which will not survive the next
> > reboot.
> >
> > What now?
>
> If i understand your situation correctly, do:
>
> gcc-config "to set the new version"
> env-update
> logout
> login
> emerge --deep --update world
> emerge --depclean
> revdep-rebuild
>
> This will take a long time but will get your system working again. If you
> don't wan't to do that you can of course tweak the libraries with binary
> tools. That is easy if you know what you are doing.
>
> To prevent this in the future always before world update, update gcc and
> glibc first if tere is a new version available. Gcc-config is crusial after
> you have installed a bew version of gcc.
>
> --
> -Matti
Hi Matti,
not exactly...
The sequence you show looks like this in my case:
gcc-config "to set the new version"
env-update
reboot
logina attempt: impossible...system does not respond anymore
The reason is, that env-update updates to the new compiler,
while some [CENSORED] system tools/application are hardcoded
to use the old compiler libraries...
If I do a
env-update --no-ldconfig
then I am able to reboot successfully...but compilation
will be done against the old compiler a fear...
I am installing the backup the fourth time today and I am
curious, when the first bad sectors of my sdcard will hit me...
Best regards,
Meino
