After installing vagrant it did a update-initramfs, which I presume, broke booting from kernel 4.15.0-34-generic when I switched back, using the grub menu, to a previous kernel 4.15.0-29-generic I could still boot without problems
After installing vagrant it did a update-initramfs, which I presume, broke booting from kernel 4.15.0-34-generic when I switched back, using the grub menu, to a previous kernel 4.15.0-29-generic I could still boot without problems