I recently upgraded my dedicated server to ubuntu 16.04 LTS (for somes reasons). I don't know why, but when I started my server, nothing happened (no ping response).

With my host, I can boot on a live cd image (ubuntu 12.04) to recorvery my server. So I mounted my partitions to do a chroot session and I navigated to my /var/log folder. In this folder, there is no news logs (like "boot.log" or "syslog" written when I start my server with Ubuntu 16.04. It's like the server don't boot. Maybe a Grub Config Bug ?

Ps: I recently had a problem with my image "/boot/vmlinuz-4.4.0-47-generic" (image was missing when I tried to apt-get -f upgrade) but I reinstalled a new one with apt-get, My kernel version :

Linux 62-210-243-90 3.13.0-32-generic #57~precise1-Ubuntu SMP Tue Jul 15 03:51:20 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux

Here is my Grub configuration :

# If you change this file, run 'update-grub' afterwards to update
# /boot/grub/grub.cfg.
# For full documentation of the options in this file, see:
#   info -f grub -n 'Simple configuration'

GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian`
GRUB_CMDLINE_LINUX="console=ttyS1,9600 BOOTIF=01-e8-9a-8f-22-d9-61"

# Uncomment to enable BadRAM filtering, modify to suit your needs
# This works with Linux (no patch required) and with any kernel that obtains
# the memory map information from GRUB (GNU Mach, kernel of FreeBSD ...)

# Uncomment to disable graphical terminal (grub-pc only)

# The resolution used on graphical terminal
# note that you can use only modes which your graphic card supports via VBE
# you can see them in real GRUB with the command `vbeinfo'

# Uncomment if you don't want GRUB to pass "root=UUID=xxx" parameter to Linux

# Uncomment to disable generation of recovery mode menu entries

# Uncomment to get a beep at grub start
#GRUB_INIT_TUNE="480 440 1"

Thanks for your help, I know there is not enought informations, I don't know what's happening (And sorry for my bad english, I'm french).

  • As it says: Run sudo update-grub from the terminal of a live disk. – Muaad ElSharif Nov 18 '16 at 16:09
  • Ok, It found the kernel : root@62-210-243-90:/boot# sudo update-grub sudo: impossible de déterminer le nom de l'hôte 62-210-243-90 Searching for GRUB installation directory ... found: /boot/grub Searching for default file ... found: /boot/grub/default Testing for an existing GRUB menu.lst file ... found: /boot/grub/menu.lst Searching for splash image ... none found, skipping ... Found kernel: /vmlinuz-4.4.0-47-generic Found kernel: /vmlinuz-4.4.0-47-generic Updating /boot/grub/menu.lst ... done – Simon Et la famille Nov 18 '16 at 16:10
  • Reboot and see if it boots properly or not from the disk, not the live disk. – Muaad ElSharif Nov 18 '16 at 16:12
  • It can't boot. No ping response from the server. I reboot with the livecd – Simon Et la famille Nov 18 '16 at 16:26
  • There is no new logs. I'm in chroot again – Simon Et la famille Nov 18 '16 at 16:39

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