It turns out to be problem on my side, though I don't know whether or how I caused it as I'm not aware I was ever digging in booting stuff. This is log of my today's dpkg install|purge actions:
18:32:19 install linux-image-3.18.0-031800rc7-generic:i386 <none> 3.18.0-031800rc7.201411302035 Here I wrote comment #19, that the newest kernel does not boot, but learned I installed only one pkg out of three. Here I am making some space on a tight /boot partition: 19:34:34 purge linux-image-3.18.0-031800rc7-generic:i386 3.18.0-031800rc7.201411302035 <none> 19:35:34 purge linux-image-3.13.0-36-generic:i386 3.13.0-36.63 <none> 19:35:39 purge linux-image-3.13.0-37-generic:i386 3.13.0-37.64 <none> 19:36:40 purge linux-image-3.13.0-40-generic:i386 3.13.0-40.69 <none> Fully installing kernels for bisection as Joseph asked + the newest one again: 19:37:32 install linux-image-3.13.11-03131105-generic:i386 <none> 3.13.11-03131105.201407181735 19:37:41 install linux-image-3.13.11-03131106-generic:i386 <none> 3.13.11-03131106.201408131735 19:37:51 install linux-image-3.13.11-03131107-generic:i386 <none> 3.13.11-03131107.201409181736 19:44:14 install linux-image-3.18.0-031800rc7-generic:i386 <none> 3.18.0-031800rc7.201411302035 Discovering not only NONE of them boot (all fall into initramfs prompt), but my fallback kernel 3.13.0-34 (that I didn't touch today) start to run into PANIC, blinking Caps LED, power off-on needed. Took a panic screenshot. Able to boot in Recovery mode as always, I removed all tested kernels and installed the newest distro one again. 20:09:06 purge linux-image-3.13.11-03131105-generic:i386 3.13.11-03131105.201407181735 <none> 20:09:11 purge linux-image-3.13.11-03131106-generic:i386 3.13.11-03131106.201408131735 <none> 20:09:17 purge linux-image-3.13.11-03131107-generic:i386 3.13.11-03131107.201409181736 <none> 20:09:23 purge linux-image-3.18.0-031800rc7-generic:i386 3.18.0-031800rc7.201411302035 <none> 20:09:23 install linux-image-3.13.0-40-generic:i386 <none> 3.13.0-40.69 This leaves me with the panicking ver. -34 and (initramfs)-ing ver. -40. Then I started to experiment as I thought possible errors might be hidden from me. So I picked -40 in GRUB screen, chose to edit commands and removed 'quiet' and 'splash' words from line: linux /vmlinuz-3.13.0-40-generic root=/dev/mapper/xubuntu-root ro quiet splash $vt_handoff I was quickly asked for the LUKS passphrase in text mode, then the system went up and all appears to work. I have no idea what caused the problem. Luckily I have at least my system back. Attaching my /boot/grub/grub.cfg just for the record. Sorry for unintentionally leading the thoughts the wrong way. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1397321 Title: All images beyond 3.13.0-34-generic don't boot To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1397321/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
