I managed to restore system (of course it's a temporary solution until libc6 package is fixed)
- boot from any debian-based live image or from parallel system - gain access to disk with broken system - sudo mount /dev/sda2 /mnt (where sda2 is a partition of your broken system) - wget http://launchpadlibrarian.net/453587373/libc6_2.30-0ubuntu3_amd64.deb - dpkg -x libc6_2.30-0ubuntu3_amd64.deb ~/libc6-previous - sudo cp ~/libc6-previous/lib/x86_64-linux-gnu/libcrypt-2.30.so /mnt/lib/x86_64-linux-gnu/ - cd /mnt/lib/x86_64-linux-gnu/ - sudo ln -s libcrypt-2.30.so libcrypt.so.1 Now you can at least boot your system. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1867423 Title: Update to glibc 2.31-0ubuntu5 breaks system To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/glibc/+bug/1867423/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs