Comment 3 for bug 1770854

Thank you for taking the time to report this bug and helping to make Ubuntu better. The relevant dpkg terminal log says:

xz: (stdout): Ошибка записи: На устройстве не осталось свободного места

translated:

xz: (stdout): Write error: There is no free space left on the device

So generating the initramfs fails because your /boot partition is full. Please cleanup your boot partition. Feel free to continue to report any other bugs you may find.