Ubuntu (4.4.0-321.e1) 16.04 xenial        # new installed kernel
Ubuntu (4.3.0-011.e0) 16.04 xenial        # old kernel
Ubuntu (0-rescue-ce94ks5084) 16.04 xenial # rescue kernel (image) that we can boot into (not rescue target/mode)

# if an update broked kernel we got a rescue one

cat /etc/default/grub | grep -i recovery=

#GRUB_DISABLE_RECOVERY="true"

sed  -n "/REC/s/^#//; /REC/s/true/false/p" /etc/default/grub
# sed -i "/REC/s/^#//; /REC/s/true/false/" /etc/default/grub

GRUB_DISABLE_RECOVERY="false"

# update-grub
# grub-mkconfig -o /boot/grub/grub.cfg

Ubuntu (4.4.0-321.e1) 16.04 xenial Ubuntu (4.4.0-321.e1) 16.04 xenial (recovery mode) Ubuntu (4.3.0-011.e0) 16.04 xenial Ubuntu (4.3.0-011.e0) 16.04 xenial (recovery mode) Ubuntu (0-rescue-ce94ks5084) 16.04 xenial Ubuntu (0-rescue-ce94ks5084) 16.04 xenial (recovery mode)

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Lecture notes

• All lecture notes are available at github in ipynb format: https://github.com/ravexina/linux-notes.

• There are html exports of project available at: https://ravexina.github.io/linux-notes.

License

Linux Notes by Milad As (Ravexina) is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.

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