[gentoo-user] dangerous to emerge --depclean

[gentoo-user] dangerous to emerge --depclean

[Chuanwen Wu]

I emerge -- depclean and the drivers of keyboard,mouse ,vedio and many
libs of font and many other package have been unmerge.
After revdep-rebuild, i reboot but i even can not startx,and i have to
re-emerge the drivers to startx,and then the libs of font to make my
fonts normal manual accroding to the unmerge messages in
/var/log/emerge.log.And now my audacious can't show my Chinese
characters ever after re-emerge it.

I just can't understand why "emerge -- depclean" such a dangerous
command can exist or i do it in a wrong way(although i think i am
right).
Does this ever happened to you?
How can you fix it ?

-- 
wcw
-- 
gentoo-user@gentoo.org mailing list

Re: [gentoo-user] dangerous to emerge --depclean

[Hieu, Luu Danh]

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emerge --depclean should only be used with --pretend/--ask and --verbose
(-pv/-av),
it existed before to let users know how to unmerge all of the packages Gnome
or KDE
(large meta-packs).

Guess now you'll read the man pages before trying something ! :)

On 03/06/06, Chuanwen Wu <wcw8410@gmail.com> wrote:
>
> I emerge -- depclean and the drivers of keyboard,mouse ,vedio and many
> libs of font and many other package have been unmerge.
> After revdep-rebuild, i reboot but i even can not startx,and i have to
> re-emerge the drivers to startx,and then the libs of font to make my
> fonts normal manual accroding to the unmerge messages in
> /var/log/emerge.log.And now my audacious can't show my Chinese
> characters ever after re-emerge it.
>
> I just can't understand why "emerge -- depclean" such a dangerous
> command can exist or i do it in a wrong way(although i think i am
> right).
> Does this ever happened to you?
> How can you fix it ?
>
> --
> wcw
> --
> gentoo-user@gentoo.org mailing list
>
>


-- 
.
.
--
*ipridian

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Re: [gentoo-user] dangerous to emerge --depclean

[Teresa and Dale]

Chuanwen Wu wrote:

> I emerge -- depclean and the drivers of keyboard,mouse ,vedio and many
> libs of font and many other package have been unmerge.
> After revdep-rebuild, i reboot but i even can not startx,and i have to
> re-emerge the drivers to startx,and then the libs of font to make my
> fonts normal manual accroding to the unmerge messages in
> /var/log/emerge.log.And now my audacious can't show my Chinese
> characters ever after re-emerge it.
>
> I just can't understand why "emerge -- depclean" such a dangerous
> command can exist or i do it in a wrong way(although i think i am
> right).
> Does this ever happened to you?
> How can you fix it ?
>

I think the man page says it very well.

> WARNING: Removing some packages may cause packages which link to the
> removed package  to  stop  working  and  complain
>               about missing libraries.  Re-emerge the complaining
> package to fix this issue.  Note that changes in USE
>               flags can drastically affect the output of --depclean.
>
>               


It is telling you to be careful using that option.  What more can you
ask for than a warning?  It also tells you how to fix it, re-emerge the
packages that are missing and are needed.  Look in /var/log/emerge.log
and see what was removed then re-emerge them one by one until everything
works.

Dale
:-) :-)


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Re: [gentoo-user] dangerous to emerge --depclean

[Raymond Lewis Rebbeck]

On Sunday, 4 June 2006 0:11, Chuanwen Wu wrote:
> I emerge -- depclean and the drivers of keyboard,mouse ,vedio and many
> libs of font and many other package have been unmerge.
> After revdep-rebuild, i reboot but i even can not startx,and i have to
> re-emerge the drivers to startx,and then the libs of font to make my
> fonts normal manual accroding to the unmerge messages in
> /var/log/emerge.log.And now my audacious can't show my Chinese
> characters ever after re-emerge it.
>
> I just can't understand why "emerge -- depclean" such a dangerous
> command can exist or i do it in a wrong way(although i think i am
> right).
> Does this ever happened to you?
> How can you fix it ?
>
> --
> wcw

I'm surprised you missed the dozen *** WARNING *** lines telling you how 
broken --depclean is and to manually check the list of packages it wants to 
remove and keep a backup.

-- 
Raymond Lewis Rebbeck
-- 
gentoo-user@gentoo.org mailing list

[gentoo-user] Re: dangerous to emerge --depclean

[Sven Köhler]

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> I just can't understand why "emerge -- depclean" such a dangerous
> command can exist or i do it in a wrong way(although i think i am
> right).

Have you seen the big fat warning that says "emerge --depclean may
damage your system" ?

"--depclean" is a nice service for advanced users. It's nothing for
beginners. You should know, why it does - and how it does what it does.

Well, --depclean start with all the packages in your world-file
(/var/lib/portage/world) and then it visits all the dependencies and the
dependencies of the dependencies of the packages.

All the packages, that are installed but that are not in the world file
or not a dependency, these packages are removed.

--depclean _may_ remove packages that are still in use, because of
use-flags were changed, faulty ebuilds, ...

So use it with care.

> Does this ever happened to you?

No, i'm using it with much much care.


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Re: [gentoo-user] Re: dangerous to emerge --depclean

[Chuanwen Wu]

2006/6/3, Sven Köhler <skoehler@upb.de>:
> > I just can't understand why "emerge -- depclean" such a dangerous
> > command can exist or i do it in a wrong way(although i think i am
> > right).
>
> Have you seen the big fat warning that says "emerge --depclean may
> damage your system" ?
>
> "--depclean" is a nice service for advanced users. It's nothing for
> beginners. You should know, why it does - and how it does what it does.
>
> Well, --depclean start with all the packages in your world-file
> (/var/lib/portage/world) and then it visits all the dependencies and the
> dependencies of the dependencies of the packages.
>
> All the packages, that are installed but that are not in the world file
> or not a dependency, these packages are removed.
Thanks for your advices!I have learned a lot!
>
>
>


-- 
wcw

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