Re: [gentoo-user] root partition lost - backup too old - please help

[Dru Kargin <drukargin@gmail.com>]

On 06/14/10 12:19, Volker Armin Hemmann wrote:
> On Montag 14 Juni 2010, Helmut Jarausch wrote:
>   
>> On 14 Jun, Volker Armin Hemmann wrote:
>>     
>>> On Montag 14 Juni 2010, Helmut Jarausch wrote:
>>>       
>>>> Hi,
>>>>
>>>> due to a disk crash I've lost my root partition.
>>>> Unfortunately, the backup version is 4 weeks old.
>>>> But my /usr partition is up-to-date and I have
>>>> binary build-pkgs.
>>>> What's the fastest way to restore the portage-relevant
>>>> data on the root partition?
>>>>
>>>> Many thanks for a hint,
>>>> Helmut.
>>>>         
>>> if /var/db survived, you can grep for /bin /lib /sbin etc in /var/db and
>>> install the packages hit.
>>>       
>> Thanks, but unfortunately /var was on the root partition.
>>
>> So, I have to  emerge -k --update @world @system .
>>
>> Helmut.
>>     
> except that without /var portage does now know what @system or @world is made 
> off.
>
>   
If you have a 4-week old version of /var/db, you can probably use that
for the sake of rebuilding/unpackaging system and world.  Hopefully,
system and world won't have changed so much in four weeks that a
ground-up rebuild will be more efficient.

-Dru