Red Hat Bugzilla – Bug 860508
Feature request: Attach anaconda to any installed system for downgrade broken packages
Last modified: 2012-10-08 09:59:51 EDT
Description of problem:
Today yum upgrade systemd form 188-3 to 191-2 version and my all Fedora 18 systems became unbootable.
Every time boot process ended with message "segfault at 39 ip b7455447 sp bf926a68 error 4 in libc-2.16.so[b73d5000+1af000]"
To recover I had to reinstall all Fedora 18 systems and after "yum update" do "yum downgrade systemd-libs systemd-sysv systemd libgudev1" immediately (before reboot).
I don't know another way to recover system in this case. Be better if I could boot from LiveCD and attach unbootable system to anaconda for downgrade broken packages.
Try running anaconda in rescue mode -- this is exactly what it is for. It will mount your system for you. All you have to do then is chroot into your mounted system (chroot /mnt/sysimage) and fix your problems (yum downgrade ....).
How I can it do?
Explain exactly please. Step by step.
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