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>Upgrading a Red Hat Stock Kernel</TITLE
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><A
NAME="KERNEL-UPGRADE"
>10.5. Upgrading a Red Hat Stock Kernel</A
></H1
><P
>By far the easiest way of upgrading your kernel is to do so using a
stock kernel RPM as provided by Red Hat. These RPM files contain
pre-compiled binary kernel code, with support for a large variety of
hardware and popular features.</P
><P
>Installing a stock kernel is easy to do and involves little risk.
Simply type, as root, the following sequence of commands:</P
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><TT
CLASS="USERINPUT"
><B
>rpm -Uvh kernel-2.0.36.i386.rpm</B
></TT
>
<TT
CLASS="USERINPUT"
><B
>cd /boot</B
></TT
>
<TT
CLASS="USERINPUT"
><B
>ls</B
></TT
></PRE
></TD
></TR
></TABLE
><P
>Make note of the new kernel name, as reported by the
``<TT
CLASS="LITERAL"
>ls</TT
>'' command above. You are interested in the
``<TT
CLASS="LITERAL"
><TT
CLASS="FILENAME"
>vmlinuz</TT
></TT
>'' file; for example the
third RPM release of kernel 2.0.36 would look like
``<TT
CLASS="LITERAL"
><TT
CLASS="FILENAME"
>vmlinuz-2.0.36-3</TT
></TT
>''.</P
><P
>Now, use an editor to edit the LILO configuation file (type:
``<TT
CLASS="LITERAL"
>pico -w /etc/lilo.conf</TT
>'') and change the
``<TT
CLASS="LITERAL"
>image=/boot/...</TT
>'' line to point to the new kernel
file. After you have done so, type
``<TT
CLASS="LITERAL"
><TT
CLASS="FILENAME"
>/sbin/lilo</TT
></TT
>''. If LILO reports
an error message, double-check the file name in your
``<TT
CLASS="LITERAL"
><TT
CLASS="FILENAME"
>lilo.conf</TT
></TT
>'' file with the file
name in the ``<TT
CLASS="LITERAL"
><TT
CLASS="FILENAME"
>/boot/</TT
></TT
>''
directory.</P
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><P
>Caution: Do not forget this step!</P
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><P
>(The above commands assume you are using the Intel platform and use
LILO to boot your system. See <A
HREF="install-lilo.html"
>Section 4.8</A
> for details
on the LILO boot loader).</P
><P
>After you have upgraded your stock kernel and have updated your boot
loader information, you should be able to shutdown and reboot using the
new kernel (see <A
HREF="system-shutdown-and-restart.html"
>Section 6.7</A
> for
details on shutting down your system).</P
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