Re: ext4?

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On Sat, 7 Aug 2010, James Bensley wrote:

> To: CentOS mailing list <centos@xxxxxxxxxx>
> From: James Bensley <jwbensley@xxxxxxxxx>
> Subject: Re:  ext4?
> 
> [nf5002@eros boot]$ sudo cat /boot/grub/menu.lst
> # grub.conf generated by anaconda
> #
> # Note that you do not have to rerun grub after making changes to this file
> # NOTICE:  You have a /boot partition.  This means that
> #          all kernel and initrd paths are relative to /boot/, eg.
> #          root (hd1,0)
> #          kernel /vmlinuz-version ro root=/dev/sda1
> #          initrd /initrd-version.img
> #boot=/dev/sda
> default=0
> timeout=5
> splashimage=(hd1,0)/grub/splash.xpm.gz
> hiddenmenu
> title CentOS (2.6.18-92.el5)
>        root (hd1,0)
>        kernel /vmlinuz-2.6.18-92.el5 ro root=LABEL=/ rhgb quiet
>        initrd /initrd-2.6.18-92.el5.img
>
> I only have one kernel listen which is why I assume I am behind, I
> think yum has been getting new kernels but not building them and
> editing the grub meun. vmlinuz-2.6.18-92.el5 and
> initrd-2.6.18-92.el5.img is the only kernel in /boot?
>
> I don't want to be a bother so can point me at a resolution i.e. point
> me at some documentation on how to make a new kernel image out of the
> resouces in /lib/modules/2.6.18-194.8.1.el5 and I shall do so.

FWIW, I have installed GRUB to separate boot partition - 
not the MBR of the first hard drive.

Whenever there is a kernel update, I have to mount and 
manually edit the /boot/grub/grub.conf file on the boot 
partition. Yum does not update it, as it doesn't know where 
it is. I prefer this behaviour, as it means I have total 
control over which kernel is running, even after a kernel 
upgrade.

I also make backup copies of all kernel files, just in 
case I need to regress to a previous version, that yum may 
have removed.

HTH

Keith Roberts
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