Kernel downgrade
Nitai @ ComputerOil
nitai at computeroil.com
Wed Mar 1 10:51:25 UTC 2006
Nick,
I had to use --force or else I could not install the kernel. It said that there is already a newer version installed (2.6.9-22).
We already rebooted and all looks good. We are now trying to reinstall The Oracle app.
Thank you for all your help.
Nitai
> -----Original Message-----
> From: redhat-list-bounces at redhat.com [mailto:redhat-list-
> bounces at redhat.com] On Behalf Of Lunt, Nick
> Sent: Mittwoch, 1. März 2006 11:42
> To: General Red Hat Linux discussion list
> Subject: RE: Kernel downgrade
>
> Nitai,
>
> why did you need to use --force ?
>
> You can see from the grub.conf you supplied below that
> 2.6.9-22.0.2.ELsmp is 0
> 2.6.9-22.0.2.EL is 1
> etc
>
> so yes, just change default to wherever your new kernel is in the list.
>
> Im worried about why you needed to force the kernel to install tho ... be
> prepared for possible issues when you reboot then new kernel ;)
>
> Good luck,
> Nick .
>
> > -----Original Message-----
> > From: Nitai @ ComputerOil [mailto:nitai at computeroil.com]
> > Sent: 01 March 2006 10:25
> > To: General Red Hat Linux discussion list
> > Subject: RE: Kernel downgrade
> >
> >
> > I could have thought about that, sorry but we are mainly
> > doing Windows and other Unix servers. So RedHat in particular
> > is not so well known.
> >
> > Ok managed to get eh kernel installed with --force. How can I
> > make it the default when starting up? Do I need to set the
> > default=1 within grub.conf?
> >
> > Nitai
> >
> > > -----Original Message-----
> > > From: redhat-list-bounces at redhat.com [mailto:redhat-list-
> > > bounces at redhat.com] On Behalf Of Lunt, Nick
> > > Sent: Mittwoch, 1. März 2006 10:58
> > > To: General Red Hat Linux discussion list
> > > Subject: RE: Kernel downgrade
> > >
> > > Ok, in that case go to rhn.redhat.com and download the
> > kernel rpm you
> > > want.
> > > Also download kernel-devel rpm too if needed.
> > >
> > > Then install the kernel with rpm -ivh kernel-xxx .
> > >
> > > Just to clarify, you need to install new kernels not update
> > them, hence
> > > the -i option to rpm.
> > >
> > > If you can't get the kernel you want from rhn have a google for it.
> > >
> > > Installing the new kernel will put the details in your
> > grub.conf, just
> > > check grub.conf to make sure its your default kernel.
> > >
> > > If you use up2date to install kernels in the future use
> > up2date -i instead
> > > of up2date -u ;)
> > >
> > > Good luck,
> > > Nick .
> > >
> > > > -----Original Message-----
> > > > From: Nitai @ ComputerOil [mailto:nitai at computeroil.com]
> > > > Sent: 01 March 2006 09:45
> > > > To: General Red Hat Linux discussion list
> > > > Subject: RE: Kernel downgrade
> > > >
> > > >
> > > > Wow, now that was quick. Unfortunelty the kernel is not
> > > > listed here. This is the content of the grub.conf file:
> > > >
> > > > default=0
> > > > timeout=5
> > > > splashimage=(hd0,1)/grub/splash.xpm.gz
> > > > hiddenmenu
> > > > title Red Hat Enterprise Linux WS (2.6.9-22.0.2.ELsmp)
> > > > root (hd0,1)
> > > > kernel /vmlinuz-2.6.9-22.0.2.ELsmp ro
> > root=LABEL=/ rhgb quiet
> > > > initrd /initrd-2.6.9-22.0.2.ELsmp.img
> > > > title Red Hat Enterprise Linux WS (2.6.9-22.0.2.EL)
> > > > root (hd0,1)
> > > > kernel /vmlinuz-2.6.9-22.0.2.EL ro root=LABEL=/ rhgb quiet
> > > > initrd /initrd-2.6.9-22.0.2.EL.img
> > > > title Red Hat Enterprise Linux WS (2.6.9-22.0.1.ELsmp)
> > > > root (hd0,1)
> > > > kernel /vmlinuz-2.6.9-22.0.1.ELsmp ro
> > root=LABEL=/ rhgb quiet
> > > > initrd /initrd-2.6.9-22.0.1.ELsmp.img
> > > > title Red Hat Enterprise Linux WS (2.6.9-22.0.1.EL)
> > > > root (hd0,1)
> > > > kernel /vmlinuz-2.6.9-22.0.1.EL ro root=LABEL=/ rhgb quiet
> > > > initrd /initrd-2.6.9-22.0.1.EL.img
> > > > title Red Hat Enterprise Linux WS (2.6.9-22.ELsmp)
> > > > root (hd0,1)
> > > > kernel /vmlinuz-2.6.9-22.ELsmp ro root=LABEL=/ rhgb quiet
> > > > initrd /initrd-2.6.9-22.ELsmp.img
> > > > title Red Hat Enterprise Linux WS (2.6.9-22.EL)
> > > > root (hd0,1)
> > > > kernel /vmlinuz-2.6.9-22.EL ro root=LABEL=/ rhgb quiet
> > > > initrd /initrd-2.6.9-22.EL.img
> > > > title Red Hat Enterprise Linux WS (2.6.9-5.ELsmp)
> > > > root (hd0,1)
> > > > kernel /vmlinuz-2.6.9-5.ELsmp ro root=LABEL=/ rhgb quiet
> > > > initrd /initrd-2.6.9-5.ELsmp.img
> > > > title Red Hat Enterprise Linux WS-up (2.6.9-5.EL)
> > > > root (hd0,1)
> > > > kernel /vmlinuz-2.6.9-5.EL ro root=LABEL=/ rhgb quiet
> > > > initrd /initrd-2.6.9-5.EL.img
> > > >
> > > > Nitai
> > > >
> > > > > -----Original Message-----
> > > > > From: redhat-list-bounces at redhat.com [mailto:redhat-list-
> > > > > bounces at redhat.com] On Behalf Of Lunt, Nick
> > > > > Sent: Mittwoch, 1. März 2006 10:38
> > > > > To: General Red Hat Linux discussion list
> > > > > Subject: RE: Kernel downgrade
> > > > >
> > > > > Nitai,
> > > > >
> > > > > if you used up2date correctly the old kernel should still
> > > > be there. Check
> > > > > your grub.conf and make it the primary boot kernel.
> > > > >
> > > > > Nick
> > > > >
> > > > > > -----Original Message-----
> > > > > > From: Nitai @ ComputerOil [mailto:nitai at computeroil.com]
> > > > > > Sent: 01 March 2006 09:35
> > > > > > To: General Red Hat Linux discussion list
> > > > > > Subject: Kernel downgrade
> > > > > >
> > > > > >
> > > > > > Hi all,
> > > > > >
> > > > > > We run RH 4.0 and recently did a kernel update (with up2date)
> > > > > > from 2.6.9-11 to 2.6.9-22, but now we see that we have
> > > > > > problems with our Oracle applications. Is there a way to go
> > > > > > back to 2.6.9-11? In grub we only see that there is a 2.6.9-5
> > > > > > (which is not supported by Oracle).
> > > > > >
> > > > > > Nitai
> > > > > >
> > > > > > --
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