Re: Reboot and all I get is a grub prompt.
- From: HP <debian@xxxxxxxxx>
- Date: Mon, 05 Dec 2011 15:34:16 +0100
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On 05.12.2011 14:38, Harry Putnam wrote:
I haven't rebooted wheezy for a while... and there have been manyAfaik, that is the base grub before the modules from /grub/ get loaded.
updates .. I'm not sure which ones have caused this problem but
when bootup starts I get to grub and immediately a prompt rather
than a selection screen.
Usually this means somehow it did not found the /grub directory on the
boot partition.
I think after the "linux /vm..." line you need tell it about initramfs
It shows grub version 1.99 ?? something.. so is that grub2... It
must be since I do not recognize most of what I see.
For example, I can type `help' and a massive flood of commands
flash past leaving only the last screenful visible... there seems
no way to page this mess, so it is mostly useless.
Pressing <TAB> shows a gout of other commands with no newlines
just all in a blob. Given what I see, I have no idea at all how to
proceed or why this has happened.
OK, grub2 by itself will never let me see how to get booted. Its
setup all wrong for that to happen, I mean how ridiculous is it to
offer a fountain of commands you can see for 1/50 of a second? So
digging up directions from google..
set root (hd0,1) (in grub1 that would be hd0,0) linux /vm<tab>
boot
with something like:
"initrd /vm<tab>" (should match the kernel)
else you may be missing required kernel modules.
Is (hd0,1) your /boot-partition? then you additionally need tell the
kernel about the real root with something like
"linux /vm<tab> root=/dev/<your root partition>"
I think using a rescue CD (as suggested by Johann) is the best to do
OK, now were talking... but whoops.. kernel panic .. just
paraphrasing: `unable to mount root on unknown block'
What the heck has happened to my poor wheezy?
I'm bunrning a systemRescue cd now... but any suggestions will be
most welcome.
in this case. Debugging inside grub without experience can be a hard
task (but its educational, done once you should be fine next time ;-)
Greetings
HP
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- From: Harry Putnam
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