zapped boot info

[Wes James]

I have the 12.04 cd/dvd to reinstall 12.04.  It gives me the option to do
"something else" as I don't want to do the other two options, since I don't
think they will work (install to side of other or use whole disk or
something like that).  Will this work to reinstall over a current version
of ubuntu and keep the apps/settings?

thanks,

-wes


On Fri, May 9, 2014 at 8:17 AM, Wes James <comptekki at gmail.com> wrote:

>
> On Fri, May 9, 2014 at 5:23 AM, blind Pete <0123peter at gmail.com> wrote:
>
>> Wes James wrote:
>>
>> > I have a mac pro (2010?) that is set up with xubuntu 12.04.  The first
>> > disk in the system has windows, the second has os X and xubuntu / and
>> swap
>> > partitions.  The user upgraded to maveriks, but now when the system
>> start
>> > you can see Windows, Xubuntu and OS X in the refit boot menu.  When you
>> > select Xubuntu, it boots in to windows.
>>
>> Disappointing.
>>
>> > I booted from the super grub disk
>> > ( http://www.supergrubdisk.org/ ) and can select the Xubuntu option
>> and it
>> > boots fine.  I've looked in gparted to see where the boot loader might
>> > have been for xubuntu, but I can't tell.
>>
>> Can you tell how many partitions there are?  Look for a "fat" partition,
>> on either disk.  Also, "sudo blkid" will list your partitions.
>> Do you have anything under </boot/efi/> ?
>>
>> > There is a /boot folder so I think the
>> > system was partitioned in to / and swap only.  Any suggestions on
>> getting
>> > xubuntu booting again.  I've tried update-grub2, but that doesn't help.
>> >  I've looked at using the grub-install, but I'm not sure what parameters
>> > I'd use to run it.  I tried:
>> >
>> > sudo grub-install /dev/sda
>> >
>> > but it says it can't do that on a GPT partition. Same with /dev/sdb.
>> >
>> > Thanks,
>> >
>> > -wes
>>
>> One way to get the right answer on usenet is to start by posting
>> the wrong answer...
>>
>> Re-install from scratch, just like Windows.
>>
>> ;-)
>>
>
> I've been thinking about reinstalling, but what is the difference between
> reinstalling and running grub-install. This version has /boot as just a
> folder under / as it was set up with / and swap during intall.  I can try
> it again.  It is /dev/sdb4 on the disk so should I be able to do
> grub-install --boot-directory=/mnt/boot /dev/sdb4 from a live cd???
>
> thanks,
>
> -wes
>
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