Re: Update-grub not listing latest kernel first

[Hans Hofker <deb01@hofker.dosgg.nl>]

John Talbut wrote:
> I have just done another kernel recompile and when I ran update-grub 
> it listed the previous version of the kernel first (thereby making it 
> the default kernel to boot).
>
> I give my kernels a version according to the date on which I compiled 
> them, i.e.:
> vmlinuz-2.6.21-11sep7
> vmlinuz-2.6.21-18jul7
>
> The second of these was listed first.  Is this because update-grub 
> puts the kernels in descending order of version numbers, hence 18 
> comes higher up than 11, rather than, as I expected, by the date and 
> time when the file was modified.
>
> Can someone give me a definitive answer, please?
The definitive answer can be found in /usr/sbin/update-grub : the 
function CompareVersions is used for sorting the list of kernels. This 
function considers the version numbers, not the file dates.

You may consider using a different naming scheme in the future, like
vmlinuz-2.6.21-20070911
vmlinuz-2.6.21-20070718
so that the alphabetic ordering of the version numbers matches the 
temporal ordering.

--
Regards,
Hans.