[Bug 682831] Re: lost console output early in boot

[Emmanuel Kasper]

@scott: hit by this bug today any ideas when this will be fixed in
legacy-grub-ec2 ?

in the meantime. for others running an Ubuntu 10.04.* domU with the
linux-image-ec2 kernel and getting no console, the proper way to fix
this is to add

console=hvc0 xencons=hvc0

in /boot/grub/menu.lst in the kopt line, so it looks like

# kopt=root=UUID=ca7eba50-21d7-4756-b797-50b13a637791 ro console=hvc0
xencons=hvc0

then you should run /usr/sbin/update-grub-legacy-ec2 ( which will also
be run after each kernel update ) from the package grub-legacy-ec2.

You can verify that the xen console  option was properly added to your
kernel entries:

grep ^kernel /boot/grub/menu.lst
kernel		/boot/vmlinuz-2.6.32-340-ec2 root=UUID=ca7eba50-21d7-4756-b797-50b13a637791 ro console=hvc0 xencons=hvc0  
kernel		/boot/vmlinuz-2.6.32-340-ec2 root=UUID=ca7eba50-21d7-4756-b797-50b13a637791 ro console=hvc0 xencons=hvc0  single

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https://bugs.launchpad.net/bugs/682831

Title:
  lost console output early in boot

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