I was able to workaround the issue by modifying /etc/default/grub and issuing update-grub ( post apt-get upgrade ). I assume it has something to do with the console settings?
----- bad grub -----
# 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'
# 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 ...)
#GRUB_BADRAM="0x01234567,0xfefefefe,0x89abcdef,0xefefefef"
# Uncomment to disable graphical terminal (grub-pc only)
GRUB_TERMINAL=console
# 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'
#GRUB_GFXMODE=640x480
# Uncomment if you don't want GRUB to pass "root=UUID=xxx" parameter to Linux
#GRUB_DISABLE_LINUX_UUID=true
# Uncomment to disable generation of recovery mode menu entries
#GRUB_DISABLE_RECOVERY="true"
# Uncomment to get a beep at grub start
#GRUB_INIT_TUNE="480 440 1"
----- working grub -----
# 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'
# 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 ...)
#GRUB_BADRAM="0x01234567,0xfefefefe,0x89abcdef,0xefefefef"
# Uncomment to disable graphical terminal (grub-pc only)
#GRUB_TERMINAL=console
# 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'
#GRUB_GFXMODE=640x480
# Uncomment if you don't want GRUB to pass "root=UUID=xxx" parameter to Linux
#GRUB_DISABLE_LINUX_UUID=true
# Uncomment to disable generation of recovery mode menu entries
#GRUB_DISABLE_RECOVERY="true"
# Uncomment to get a beep at grub start
#GRUB_INIT_TUNE="480 440 1"
I was able to workaround the issue by modifying /etc/default/grub and issuing update-grub ( post apt-get upgrade ). I assume it has something to do with the console settings?
----- bad grub ----- grub.cfg.
# If you change this file, run 'update-grub' afterwards to update
# /boot/grub/
# For full documentation of the options in this file, see:
# info -f grub -n 'Simple configuration'
GRUB_DEFAULT=0 TIMEOUT= 0 TIMEOUT_ QUIET=true R=`lsb_ release -i -s 2> /dev/null || echo Debian` LINUX_DEFAULT= "console= ttyS0" LINUX=" "
#GRUB_HIDDEN_
#GRUB_HIDDEN_
GRUB_TIMEOUT=5
GRUB_DISTRIBUTO
GRUB_CMDLINE_
GRUB_CMDLINE_
# Uncomment to enable BadRAM filtering, modify to suit your needs "0x01234567, 0xfefefefe, 0x89abcdef, 0xefefefef"
# This works with Linux (no patch required) and with any kernel that obtains
# the memory map information from GRUB (GNU Mach, kernel of FreeBSD ...)
#GRUB_BADRAM=
# Uncomment to disable graphical terminal (grub-pc only) console
GRUB_TERMINAL=
# The resolution used on graphical terminal 640x480
# 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'
#GRUB_GFXMODE=
# Uncomment if you don't want GRUB to pass "root=UUID=xxx" parameter to Linux LINUX_UUID= true
#GRUB_DISABLE_
# Uncomment to disable generation of recovery mode menu entries RECOVERY= "true"
#GRUB_DISABLE_
# Uncomment to get a beep at grub start TUNE="480 440 1"
#GRUB_INIT_
#Disable recordfail timeout _TIMEOUT= 0
GRUB_RECORDFAIL
-----
----- working grub ----- grub.cfg.
# If you change this file, run 'update-grub' afterwards to update
# /boot/grub/
# For full documentation of the options in this file, see:
# info -f grub -n 'Simple configuration'
GRUB_DEFAULT=0 TIMEOUT= 0 TIMEOUT_ QUIET=true R=`lsb_ release -i -s 2> /dev/null || echo Debian` LINUX_DEFAULT= "" LINUX=" "
#GRUB_HIDDEN_
GRUB_HIDDEN_
GRUB_TIMEOUT=5
GRUB_DISTRIBUTO
GRUB_CMDLINE_
GRUB_CMDLINE_
# Uncomment to enable BadRAM filtering, modify to suit your needs "0x01234567, 0xfefefefe, 0x89abcdef, 0xefefefef"
# This works with Linux (no patch required) and with any kernel that obtains
# the memory map information from GRUB (GNU Mach, kernel of FreeBSD ...)
#GRUB_BADRAM=
# Uncomment to disable graphical terminal (grub-pc only) console
#GRUB_TERMINAL=
# The resolution used on graphical terminal 640x480
# 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'
#GRUB_GFXMODE=
# Uncomment if you don't want GRUB to pass "root=UUID=xxx" parameter to Linux LINUX_UUID= true
#GRUB_DISABLE_
# Uncomment to disable generation of recovery mode menu entries RECOVERY= "true"
#GRUB_DISABLE_
# Uncomment to get a beep at grub start TUNE="480 440 1"
#GRUB_INIT_
#Disable recordfail timeout L_TIMEOUT= 0
#GRUB_RECORDFAI
-----