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>Remote Serial Console HOWTO</TH
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>Appendix C. Upgrading <SPAN
CLASS="PRODUCTNAME"
>Red Hat Linux</SPAN
> from a
serial console</TD
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><H1
CLASS="SECTION"
><A
NAME="RHL-UPGRADE"
></A
>C.8. Upgrade Red Hat distribution</H1
><P
>In this section it all comes together. We will walk through
an entire serial console upgrade, not that it differs much from a
standard text mode upgrade.</P
><P
>Configure <SPAN
CLASS="ACRONYM"
>BIOS</SPAN
> to boot from floppy or
insert the floppy disk. Now reboot the machine.</P
><DIV
CLASS="INFORMALFIGURE"
><A
NAME="AEN3887"
></A
><P
></P
><TABLE
BORDER="1"
BGCOLOR="#E0E0E0"
WIDTH="100%"
><TR
><TD
><FONT
COLOR="#000000"
><PRE
CLASS="SCREEN"
><TT
CLASS="PROMPT"
>bash#</TT
> <B
CLASS="COMMAND"
>shutdown -r now</B
>
<TT
CLASS="COMPUTEROUTPUT"
>SYSLINUX 1.64 1.64-pre2 Copyright (C) 1994-2001 H. Peter Anvin
Welcome to Red Hat Linux 7.1!
- To install or upgrade Red Hat Linux in graphical mode,
press the <ENTER> key.
- To install or upgrade Red Hat Linux in text mode, type: text <ENTER>.
- To enable low resolution mode, type: lowres <ENTER>.
Press <F2> for more information about low resolution mode.
- To disable framebuffer mode, type: nofb <ENTER>.
Press <F2> for more information about disabling framebuffer mode.
- To enable expert mode, type: expert <ENTER>.
Press <F3> for more information about expert mode.
- To enable rescue mode, type: linux rescue <ENTER>.
Press <F5> for more information about rescue mode.
- If you have a driver disk, type: linux dd <ENTER>.
- Use the function keys listed below for more information.
[F1-Main] [F2-General] [F3-Expert] [F4-Kernel] [F5-Rescue]
boot:
Loading initrd.img..............
Loading vmlinuz............. ready.
Linux version 2.4.2-2BOOT (root@porky.devel.redhat.com) (gcc version 2.96 20000731 (Red Hat Linux 7.1 2.96-79)) #1 Sun Apr 8 18:24:33 EDT 2001</TT
></PRE
></FONT
></TD
></TR
></TABLE
><P
></P
></DIV
><P
>Because we have booted into expert mode, the menus differ
slightly from the standard upgrade. For example, you probably
don't have a driver disk.</P
><DIV
CLASS="INFORMALFIGURE"
><A
NAME="AEN3893"
></A
><P
></P
><TABLE
BORDER="1"
BGCOLOR="#E0E0E0"
WIDTH="100%"
><TR
><TD
><FONT
COLOR="#000000"
><PRE
CLASS="SCREEN"
> Welcome to Red Hat Linux
+----------+ Devices +-----------+
| |
| Do you have a driver disk? |
| |
| +-----+ +----+ |
| | Yes | |[No]| |
| +-----+ +----+ |
| |
+--------------------------------+</PRE
></FONT
></TD
></TR
></TABLE
><P
></P
></DIV
><P
>The upgrade then continues in the usual fashion.</P
><DIV
CLASS="INFORMALFIGURE"
><A
NAME="AEN3896"
></A
><P
></P
><TABLE
BORDER="1"
BGCOLOR="#E0E0E0"
WIDTH="100%"
><TR
><TD
><FONT
COLOR="#000000"
><PRE
CLASS="SCREEN"
>+--------+ Choose a Language +---------+
| |
| What language should be used during |
| the installation process? |
| |
| Czech : |
| [ English : ] |
| Danish : |
| French : |
| German : |
| Hungarian : |
| Icelandic : |
| Italian : |
| |
| +----+ |
| |[OK]| |
| +----+ |
| |
+--------------------------------------+</PRE
></FONT
></TD
></TR
></TABLE
><P
></P
></DIV
><P
>Select <SPAN
CLASS="GUIMENUITEM"
>HTTP</SPAN
> to upgrade from the
web server we prepared previously.</P
><DIV
CLASS="INFORMALFIGURE"
><A
NAME="AEN3900"
></A
><P
></P
><TABLE
BORDER="1"
BGCOLOR="#E0E0E0"
WIDTH="100%"
><TR
><TD
><FONT
COLOR="#000000"
><PRE
CLASS="SCREEN"
>+-----+ Installation Method +------+
| |
| What type of media contains the |
| packages to be installed? |
| |
| NFS image |
| FTP |
| [ HTTP ] |
| |
| +----+ +------+ |
| |[OK]| | Back | |
| +----+ +------+ |
| |
+----------------------------------+</PRE
></FONT
></TD
></TR
></TABLE
><P
></P
></DIV
><P
>Here we supply the network details recorded in <A
HREF="rhl-ifconfig.html#RHL-IFCONFIG-IFCONFIG"
>Example C-1</A
>. If your network supports Dynamic
Host Configuration Protocol or the Bootstrap Protocol then these
work fine too.</P
><DIV
CLASS="INFORMALFIGURE"
><A
NAME="RHL-UPGRADE-IPADDR"
></A
><P
></P
><TABLE
BORDER="1"
BGCOLOR="#E0E0E0"
WIDTH="100%"
><TR
><TD
><FONT
COLOR="#000000"
><PRE
CLASS="SCREEN"
>+--------------------+ Configure TCP/IP +--------------------+
| |
| Please enter the IP configuration for this machine. Each |
| item should be entered as an IP address in dotted-decimal |
| notation (for example, 1.2.3.4). |
| |
| [ ] Use dynamic IP configuration (BOOTP/DHCP) |
| |
| IP address: 10.1.2.3________ |
| Netmask: 255.255.255.0___ |
| Default gateway (IP): 10.1.2.254______ |
| Primary nameserver: 10.255.1.1______ |
| |
| +----+ +------+ |
| |[OK]| | Back | |
| +----+ +------+ |
| |
+------------------------------------------------------------+</PRE
></FONT
></TD
></TR
></TABLE
><P
></P
></DIV
><P
>Provide the name of the pre-prepared web server. Note that
the response to <SPAN
CLASS="GUIMENUITEM"
>Red Hat directory</SPAN
> must
start with a <TT
CLASS="FILENAME"
>/</TT
>.</P
><DIV
CLASS="INFORMALFIGURE"
><A
NAME="AEN3909"
></A
><P
></P
><TABLE
BORDER="1"
BGCOLOR="#E0E0E0"
WIDTH="100%"
><TR
><TD
><FONT
COLOR="#000000"
><PRE
CLASS="SCREEN"
>+-----------------+ HTTP Setup +-----------------------------------+
| |
| Please enter the following information: |
| |
| o the name or IP number of your web server |
| o the directory on that server containing |
| Red Hat Linux for your architecure |
| |
| Web site name: www.example.edu.au_______________________ |
| Red Hat directory: /redhat/linux/7.1-20020202/en/os/i386____ |
| |
| +----+ +------+ |
| |[OK]| | Back | |
| +----+ +------+ |
| |
+------------------------------------------------------------------+</PRE
></FONT
></TD
></TR
></TABLE
><P
></P
></DIV
><P
>The following status messages then fly by before the welcome
screen appears.</P
><DIV
CLASS="INFORMALFIGURE"
><A
NAME="AEN3912"
></A
><P
></P
><TABLE
BORDER="1"
BGCOLOR="#E0E0E0"
WIDTH="100%"
><TR
><TD
><FONT
COLOR="#000000"
><PRE
CLASS="SCREEN"
><SPAN
CLASS="GUILABEL"
>Retrieving base/netstg1.img...</SPAN
>
<SPAN
CLASS="GUILABEL"
>Loading /mnt/runtime ramdisk...</SPAN
>
<SPAN
CLASS="GUILABEL"
>Retrieving base/netstg2.img...</SPAN
>
<SPAN
CLASS="GUILABEL"
>Loading /mnt/runtime/usr ramdisk...</SPAN
>
<SPAN
CLASS="GUILABEL"
>Running anaconda - please wait...</SPAN
>
<SPAN
CLASS="GUILABEL"
>Graphical installation not available for http installs. Starting text mode.</SPAN
></PRE
></FONT
></TD
></TR
></TABLE
><TABLE
BORDER="1"
BGCOLOR="#E0E0E0"
WIDTH="100%"
><TR
><TD
><FONT
COLOR="#000000"
><PRE
CLASS="SCREEN"
>+----------------+ Red Hat Linux +-----------------+
| |
| Welcome to Red Hat Linux! |
| |
| This installation process is outlined in detail |
| in the Official Red Hat Linux Installation |
| Guide available from Red Hat Software. If you |
| have access to this manual, you should read the |
| installation section before continuing. |
| |
| If you have purchased Official Red Hat Linux, |
| be sure to register your purchase through our |
| web site, http://www.redhat.com/. |
| |
| +----+ +------+ |
| |[OK]| | Back | |
| +----+ +------+ |
| |
+--------------------------------------------------+</PRE
></FONT
></TD
></TR
></TABLE
><P
></P
></DIV
><P
>Select <SPAN
CLASS="GUIMENUITEM"
>Upgrade Existing
Installation</SPAN
>, although this procedure works fine for
installations as well.</P
><DIV
CLASS="INFORMALFIGURE"
><A
NAME="AEN3923"
></A
><P
></P
><TABLE
BORDER="1"
BGCOLOR="#E0E0E0"
WIDTH="100%"
><TR
><TD
><FONT
COLOR="#000000"
><PRE
CLASS="SCREEN"
>+--------------+ Installation Type +--------------+
| |
| What type of system would you like to install? |
| |
| Workstation |
| Server System |
| Laptop |
| Custom System |
| [ Upgrade Existing Installation ] |
| |
| +----+ +------+ |
| | OK | | Back | |
| +----+ +------+ |
| |
+-------------------------------------------------+</PRE
></FONT
></TD
></TR
></TABLE
><P
></P
></DIV
><P
>The upgrade continues. When the <SPAN
CLASS="GUIMENU"
>LILO
Configuration</SPAN
> screen appears insert the kernel parameters
recorded from <A
HREF="rhl-liloconfig.html#RHL-LILOCONFIG-LILO"
>Example C-2</A
>. These
parameters should include
<TT
CLASS="LITERAL"
>console=ttyS…</TT
>.</P
><DIV
CLASS="INFORMALFIGURE"
><A
NAME="AEN3929"
></A
><P
></P
><TABLE
BORDER="1"
BGCOLOR="#E0E0E0"
WIDTH="100%"
><TR
><TD
><FONT
COLOR="#000000"
><PRE
CLASS="SCREEN"
>+---------------------+ LILO Configuration +---------------------+
| |
| A few systems will need to pass special options to the kernel |
| at boot time for the system to function properly. If you need |
| to pass boot options to the kernel, enter them now. If you |
| don't need any or aren't sure, leave this blank. |
| |
| [ ] Use linear mode (needed for some SCSI drives) |
| |
| console=tty0 console=ttyS0,9600n8_______________ |
| |
| +----+ +------+ +------+ |
| | OK | | Skip | | Back | |
| +----+ +------+ +------+ |
| |
+----------------------------------------------------------------+</PRE
></FONT
></TD
></TR
></TABLE
><P
></P
></DIV
><DIV
CLASS="INFORMALFIGURE"
><A
NAME="AEN3931"
></A
><P
></P
><TABLE
BORDER="1"
BGCOLOR="#E0E0E0"
WIDTH="100%"
><TR
><TD
><FONT
COLOR="#000000"
><PRE
CLASS="SCREEN"
>+-------------+ LILO Configuration +--------------+
| |
| Where do you want to install the bootloader? |
| |
|[/dev/hda Master Boot Record (MBR) ]|
| /dev/hda1 First sector of boot partition |
| |
| +----+ +------+ |
| | OK | | Back | |
| +----+ +------+ |
| |
+-------------------------------------------------+</PRE
></FONT
></TD
></TR
></TABLE
><P
></P
></DIV
><DIV
CLASS="INFORMALFIGURE"
><A
NAME="AEN3933"
></A
><P
></P
><TABLE
BORDER="1"
BGCOLOR="#E0E0E0"
WIDTH="100%"
><TR
><TD
><FONT
COLOR="#000000"
><PRE
CLASS="SCREEN"
>+----------------------+ LILO Configuration +-----------------------+
| |
| The boot manager Red Hat uses can boot other operating systems |
| as well. You need to tell me what partitions you would like to |
| be able to boot and what label you want to use for each of them. |
| |
| Device Partition type Default Boot label |
|[/dev/hda6 Linux Native * linux ] : |
| : |
| : |
| : |
| : |
| |
| +----+ +------+ +------+ |
| | Ok | | Edit | | Back | |
| +----+ +------+ +------+ |
| |
| |
+-------------------------------------------------------------------+</PRE
></FONT
></TD
></TR
></TABLE
><P
></P
></DIV
><P
>The upgrade continues. As installing the packages may take a
few hours, you can disconnect.</P
><DIV
CLASS="INFORMALFIGURE"
><A
NAME="AEN3936"
></A
><P
></P
><TABLE
BORDER="1"
BGCOLOR="#E0E0E0"
WIDTH="100%"
><TR
><TD
><FONT
COLOR="#000000"
><PRE
CLASS="SCREEN"
>+-------------+ Package Installation +--------------+
| |
| Name : |
| Size : |
| Summary: |
| |
| Packages Bytes Time |
| Total : 0 0M |
| Completed: 0 0M |
| Remaining: 0 0M |
| |
| |
+---------------------------------------------------+</PRE
></FONT
></TD
></TR
></TABLE
><P
></P
></DIV
><P
>If you disconnected, then when reconnecting it is best to
press <B
CLASS="KEYCAP"
>Tab</B
> rather than pressing
<B
CLASS="KEYCAP"
>Return</B
>.</P
><P
>Pressing <B
CLASS="KEYCAP"
>Return</B
> on the
<SPAN
CLASS="GUIMENU"
>Bootdisk</SPAN
> screen writes a boot disk. This will
overwrite the upgrade disk.</P
><P
>You may wish to deliberately create a boot disk if you cannot
alter the <SPAN
CLASS="ACRONYM"
>BIOS</SPAN
> parameters to boot from the hard
disk, or if you cannot wait for someone to eject the floppy disk
before rebooting.</P
><DIV
CLASS="INFORMALFIGURE"
><A
NAME="AEN3946"
></A
><P
></P
><TABLE
BORDER="1"
BGCOLOR="#E0E0E0"
WIDTH="100%"
><TR
><TD
><FONT
COLOR="#000000"
><PRE
CLASS="SCREEN"
>+------------------+ Bootdisk +-------------------+
| |
| A custom boot disk provides a way of booting |
| into your Linux system without depending on |
| the normal bootloader. This is useful if you |
| don't want to install lilo on your system, |
| another operating system removes lilo, or lilo |
| doesn't work with your hardware configuration. |
| A custom boot disk can also be used with the |
| Red Hat rescue image, making it much easier to |
| recover from severe system failures. |
| |
| Would you like to create a boot disk for your |
| system? |
| |
| +-----+ +----+ |
| |[Yes]| | No | |
| +-----+ +----+ |
| |
+-------------------------------------------------+</PRE
></FONT
></TD
></TR
></TABLE
><P
></P
></DIV
><P
>When the <SPAN
CLASS="GUIMENU"
>Complete</SPAN
> screen appears prepare
to reboot into Linux. If you have a serial <SPAN
CLASS="ACRONYM"
>BIOS</SPAN
>
be prepared to alter the <SPAN
CLASS="ACRONYM"
>BIOS</SPAN
> parameters to boot
from the hard disk first. If you do not have a serial
<SPAN
CLASS="ACRONYM"
>BIOS</SPAN
> ask someone to eject the floppy disk.</P
><DIV
CLASS="INFORMALFIGURE"
><A
NAME="AEN3953"
></A
><P
></P
><TABLE
BORDER="1"
BGCOLOR="#E0E0E0"
WIDTH="100%"
><TR
><TD
><FONT
COLOR="#000000"
><PRE
CLASS="SCREEN"
>+-----------------+ Complete +------------------+
| |
| Congratulations, installation is complete. # |
| : |
| Press return to reboot, and be sure to : |
| remove your boot medium after the system : |
| reboots, or your system will rerun the : |
| install. For information on fixes which : |
| are available for this release of Red Hat : |
| Linux, consult the Errata available from : |
| http://www.redhat.com/errata. : |
| : |
| Information on configuring and using your : |
| Red Hat Linux system is contained in the : |
| |
| +----+ |
| |[OK]| |
| +----+ |
| |
+-----------------------------------------------+</PRE
></FONT
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><PRE
CLASS="SCREEN"
><TT
CLASS="COMPUTEROUTPUT"
>sending termination signals...done
sending kill signals...done
disabling swap...
/tmp/swap/hda5
unmounting filesystems...
/mnt/sysimage/var/www/html
/mnt/sysimage/boot
/mnt/sysimage/proc
/mnt/runtime/usr
/mnt/sysimage
/proc/bus/usb
/mnt/runtime
/dev/pts
/proc
rebooting system
Restarting system.
LILO
Loading linux......................
Linux version 2.4.3-12 (root@porky.devel.redhat.com) (gcc version 2.96 20000731 (Red Hat Linux 7.1 2.96-85)) #1 Fri Jun 8 15:05:56 EDT 2001</TT
></PRE
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