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Title: ld.so.cache corrupted, system does not boot anymore

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ld.so.cache corrupted, system does not boot anymore

Symptom:

Right after booting, messages appear at the first programmes that are executed (e.g. fsck, login etc.): ld.so.cache corrupted.

The system is not usable :-(

Cause:

The dynamic linker ld makes sure that programmes dynamically linked to runtime are supplied with the dynamic libraries' corresponding functions. If this cannot be performed, the programme is not able to start.

ld.so.cache is a database, that requires the ld to find the libraries. If this database is destroyed, as said, no dinamically linked programme can be started anymore!

And how can that happen?

Really, very strangely (it has appeared to us for the first time in many years of support).

One possibility could be, that the root-filesystem was full (be careful that this never happens!) and in this moment ldconfig was called (e.g. by SuSEConfig or YaST). The new /etc/ld.so.cache configuration could not therefore be executed.

Solution:

Boot with bootdisk and rescuedisk
Perform initially a filesystem check. If your root partition is e.g. /dev/sda3, enter:
```
        e2fsck /dev/sda3
```
See the handbook for more information about filesystem check.
Mount your root partition, e.g.
```
        mount -t e2fs /dev/sda8 /mnt
```
Create a file fastboot:
```
        touch /mnt/fastboot
```
(Re) Boot your system as usual and additionally declare the following kernel parameters: rw S
Set a new ls.so.cache:
```
        ldconfig
```
Reboot your computer

Hint:

The described solution could not still be tested in this form. Please send us a short report, if it works.
From S.u.S.E. Linux 4.3 on we will make sure that this does not happen anymore.

See also:

constructing a rescue disk

Keywords: LD.SO.CACHE CORRUPTED, BOOT, ROOTFILESYSTEM FULL

Feedback welcome: Send Mail to kfr@suse.de (Please give the following subject: SDB-kfr_59)

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