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Old 05-24-2010, 08:48 AM   #1
biocc
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some wrong with glibc


hello, recently i use a software in rhel5.1, it showed some wrong:
./novoalign: /lib64/libc.so.6: version `GLIBC_2.7'

so i qurey my mechine find it had installed glibc-2.5-49, and i want to install it.
> rpm -e glibc-2.5-49

error: "glibc-2.5-49" specifies multiple packages
>rpm -q glibc-2.5-49
glibc-2.5-49
glibc-2.5-49

i donot why there are two glibc.
then i downloaded glibc-2.7
>rpm -ivh glibc-2.7-2.x86_64.rpm

warning: glibc-2.7-2.x86_64.rpm: Header V3 DSA signature: NOKEY, key ID 4f2a6fd2
error: Failed dependencies:
glibc-common = 2.7-2 is needed by glibc-2.7-2.x86_64
glibc > 2.5 conflicts with glibc-common-2.5-49.x86_64
what should i do? thanks for you help

Last edited by biocc; 05-24-2010 at 08:54 AM.
 
Old 05-24-2010, 08:58 AM   #2
alli_yas
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Hi

Quote:
warning: glibc-2.7-2.x86_64.rpm: Header V3 DSA signature: NOKEY, key ID 4f2a6fd2
error: Failed dependencies:
glibc-common = 2.7-2 is needed by glibc-2.7-2.x86_64
glibc > 2.5 conflicts with glibc-common-2.5-49.x86_64
What the above is telling you is that glibc 2.7 requires the mentioned packages as dependencies; in order to be used.

The problem you would have here is that the Red Hat supported version of glibc for RHEL 5 is glibc-2.5

If you have a support agreement for this machine, than installing glibc 2.7 will impact your support.

If you don't need support, I suggest you install CentOS which is a RHEL clone - and thereafter canvas the web for a CentOS yum repository that has the version of glibc you are looking for.

Thereafter utilize yum to install glibc-2.7 - since yum will also resolve all your package dependencies.
 
Old 05-24-2010, 09:19 AM   #3
biocc
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Quote:
Originally Posted by alli_yas View Post
Hi



What the above is telling you is that glibc 2.7 requires the mentioned packages as dependencies; in order to be used.

The problem you would have here is that the Red Hat supported version of glibc for RHEL 5 is glibc-2.5

If you have a support agreement for this machine, than installing glibc 2.7 will impact your support.

If you don't need support, I suggest you install CentOS which is a RHEL clone - and thereafter canvas the web for a CentOS yum repository that has the version of glibc you are looking for.

Thereafter utilize yum to install glibc-2.7 - since yum will also resolve all your package dependencies.
thank you.
i know that glibx depends on other packages. could i uninstall glibc2.5 , then install glibc2.7. because the mechine is a server, using centos may be impossible.
so any other methods could solve my problem. thanks
 
Old 05-24-2010, 09:30 AM   #4
knudfl
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GLIBC is your system. ( Together with the kernel.)

Glibc can usually not be changed.
Do not expect to use your OS ever again, if you do.

If you tell the exact name of the application ( novoalign ?)
there may be another solution.
..
 
1 members found this post helpful.
Old 05-24-2010, 09:30 AM   #5
alli_yas
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Quote:
because the mechine is a server, using centos may be impossible.
Well installing 2.7 of glibc can also be problematic since it will impact your Red Hat support (since its an unsupported version within RHEL 5) - below is a listing from my RHN repository for a RHEL 5.5 machine:

Code:
# yum list glibc
Loaded plugins: rhnplugin, security
Installed Packages
glibc.i686                                                                                                           2.5-49                                                                                                         installed
glibc.x86_64                                                                                                         2.5-49                                                                                                         installed
Thus in my opinion you have two choices:

1. You can install the glibc-2.7 package manually; but you'll also need to manually download and install its dependencies (as well as the dependencies of the dependencies and so forth). This is risky since it will impact your RHEL support in the case of a system failure

2. You can switch to CentOS and look for a supported version of glibc-2.7. Remember that the only difference between RHEL and CentOS is that one is officially supported by Red Hat. Thus you won't be subjecting your system to anything unstable by moving to CentOS.

Hope this helps you,
 
Old 05-24-2010, 10:04 AM   #6
biocc
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Quote:
Originally Posted by knudfl View Post
GLIBC is your system. ( Together with the kernel.)

Glibc can usually not be changed.
Do not expect to use your OS ever again, if you do.

If you tell the exact name of the application ( novoalign ?)
there may be another solution.
..
thank you. in fact, i want to use the novoalign.is there another solution for it.
 
Old 05-24-2010, 11:13 AM   #7
knudfl
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Quote:
I want to use the novoalign. Is there another solution for it
Yes, use the statically compiled version :
"X86-64 Linux Static link" ( if you have a 64 Bits OS.)
http://www.novocraft.com/download.html
http://www.novocraft.com/downloads/d....33.gcc.tar.gz
>>> novocraftV2.05.33.gcc.tar.gz
..
 
Old 05-24-2010, 11:28 AM   #8
knudfl
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@ alli_yas : glibc is the bacic system library,
and as such it has no dependencies.

All other libraries / applications depend on glibc.
You should try changing it on your systems.
Most likely result : you will have to reinstall the OS.
..
 
Old 05-24-2010, 11:30 AM   #9
biocc
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Quote:
Originally Posted by knudfl View Post
Yes, use the statically compiled version :
"X86-64 Linux Static link" ( if you have a 64 Bits OS.)
http://www.novocraft.com/download.html
http://www.novocraft.com/downloads/d....33.gcc.tar.gz
>>> novocraftV2.05.33.gcc.tar.gz
..
thank you. it works,but i donot know why.can you explain it?
 
Old 05-24-2010, 11:46 AM   #10
alli_yas
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Quote:
@ alli_yas : glibc is the bacic system library,
and as such it has no dependencies.

All other libraries / applications depend on glibc.
You should try changing it on your systems.
Most likely result : you will have to reinstall the OS
Thanks knudfl - didn't know that - will give it a try on my sandbox - thanks
 
Old 05-24-2010, 11:53 AM   #11
knudfl
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Quote:
Thank you. it works, but I donot know why. Can you explain it?
The first package, you tried to use, has dynamic executables,
i.e. novoalign etc. depend on your system libraries.
Can be tested with the command : ldd novoalign
If you do 'ldd novoalign' with the static version, it will reply :
" not a dynamic executable ".
Statically compiled : A glibc is compiled into the executables.
They use 40 MB space. The dynamic executables : 15 MB.
So most often, all applications are "dynamic" : Use less space.
..
 
  


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