Corrupted libs: kernel parnic error

[jayuqo80]

Good day,

I untared a few libs on the wrong server (that's the when you're supposed to start laughing!) and I corrupted my server. Everytime it boots up, I get the following error:

/sbin/init: relocation error: /lib/tls/libc.so.6: symbol _dl_out_of_memory, version GLIBC_PRIVATE not defined in file ld-linux.so.2 with link time reference. Kernel panic - not syncing. Attempted to kill init!

I can I restore the original libs? I'm running RHEL 2.6.9-42 on a Proliant DL585. Thanks for your help.

Jerome

[Irithori]

If you have a list of the libs you replaced,
then you can identify the RPMs involved.

These could help:

rpm -V <package-name>
and 
rpm -qf /lib/<libname>

Once you have a list of affected RPMs,
this should get your system back on track:

yum reinstall <rpm_1> <rpm_2> <etc>

[jayuqo80]

Thanks for your reply. Those are the libs that were "untared"

/lib/ld-linux.so.2
/usr/lib/libz.so.1
/lib/libcrypt.so.1
/lib/libssl.so.4
/lib/libcrypto.so.4
/lib/libresolv.so.2
/lib/libnsl.so.1
/lib/libdl.so.2
/usr/lib/libncurses.so.5 .
/lib/libm.so.6
/lib/libc.so.6
/usr/lib/libgssapi_krb5.so.2
/usr/lib/libkrb5.so.3
/usr/lib/libcom_err.so.2
/lib/libcom_err.so.2
/usr/lib/libk5crypto.so.3 .

My server crashes before I get to any login prompt. I do have the RHEL CD here. Is it just a matter of booting from the CD and repair the broken libs? How can I do that?

[Irithori]

ok, from the list you gave me, I found the appropiate RPMs

<lib>     <RPM>

/lib/ld-linux.so.2		glibc
/usr/lib/libz.so.1		zlib
/lib/libcrypt.so.1		glibc
/lib/libssl.so.4		openssl
/lib/libcrypto.so.4		openssl
/lib/libresolv.so.2		glibc
/lib/libnsl.so.1		glibc
/lib/libdl.so.2			glibc
/usr/lib/libncurses.so.5	ncurses
/lib/libm.so.6			glibc			
/lib/libc.so.6			glibc
/usr/lib/libgssapi_krb5.so.2	krb5-libs
/usr/lib/libkrb5.so.3		krb5-libs
/usr/lib/libcom_err.so.2	e2fsprogs-libs	
/lib/libcom_err.so.2		e2fsprogs-libs
/usr/lib/libk5crypto.so.3	krb5-libs

Unfortunately, your major "victim" seems to be glibc, which explains why you cant get a login.

So you also cannot "yum reinstall" right away.

If you want to avoid a reinstall, you have to
- manually copy these libs from another similar system (or backup) into the damaged machine (via the RHEL boot cd)
- hope that it boots
- and once it does, issue:

yum reinstall glibc zlib openssl ncurses krb5-libs e2fsprogs-libs

[jayuqo80]

So it looks like I don`t have the right CD cause it just won`t boot with it. Is there a link where I can download RHEL 2.6.9-42 and update those libs?

[Irithori]

Yes, login to the redhat network.
https://rhn.redhat.com/
There you have access to the ISOs

[jayuqo80]

So I downloaded the following ISO

rhn.redhat.com/rhn/software/channel/downloads/Download.do?cid=1214

...but it seems like this isn't a boot CD.....can somebody confirm?