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Re: how to replace kernel on Ubuntu

Subject: Re: how to replace kernel on Ubuntu
From: Rakotomandimby Mihamina
Date: Fri, 09 Oct 2009 13:38:13 +0300
10/09/2009 12:08 PM, loody:
> 1. what is UUID used for? It seems replace "root=/dev/sda1"

AFAIK, they also replace the need of numbering the disk/partition.
you may then move the SATA slot of a disk without problem.

>      is there any tool or command I have to do to getting this number?

# vol_id -u /dev/sda2

> 3. is there any restriction of kernel version to replace in Ubuntu; if
> I replace my ubuntu with older version as 2.6.18, will it be ok?

Adding a new kernel does not imply removing the old one.
Just try the new one and if it fails, you may always reboot to
the default.
For a remote server, I used to use LILO and its -R option.

I dont really know what is the equivalent for GRUB

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