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Marc Pascual

2013-Mar-11 07:18 UTC

[syslinux] menu.c32: not a COM32R image

Hello,

I have a simple shell script that I use to generate an iso installer
depending on the release version that I want. The thing is that I extract
isolinux and menu.c32 from the syslinux rpm of the latest redhat release.
The reason I am doing it this way is because of the

This is what does it:

copymenu32() {
    # $ cat /local/kickstart/templates/os-updates.txt
    # RedHat-5.8|20120425
    # RedHat-5.9|20130305
    # RedHat-6.2|20120425
    # RedHat-6.3|20120827
    # RedHat-6.4|20130228
    OSREL="`grep ^RedHat /local/kickstart/templates/os-updates.txt | sort
-n | tail -1 | awk -F'|' '{print $1}'`"
    DEST=$2
    PWD=`pwd`
    SYSLINUX_RPM=`find /local/yum-repo/OS/${OSREL}-x86_64/base -name
'syslinux-*.x86_64.rpm' | egrep 'syslinux-[[:digit:]]'`
    SYSLINUX_PATH=`rpm -qpl $SYSLINUX_RPM | grep -w menu.c32 | xargs
dirname`
    SYSLINUX_TMPDIR=`mktemp -d /tmp/syslinux.XXXXXX`
    cd $SYSLINUX_TMPDIR
    rpm2cpio $SYSLINUX_RPM | cpio -idm .${SYSLINUX_PATH}/menu.c32
    rpm2cpio $SYSLINUX_RPM | cpio -idm .${SYSLINUX_PATH}/isolinux.bin
    cp -f .${SYSLINUX_PATH}/menu.c32 $DEST
    cp -f .${SYSLINUX_PATH}/isolinux.bin $DEST
    cd $PWD
    rm -rf $SYSLINUX_TMPDIR
}

createiso() {
    TYPE=$1
    if [ $TYPE == "rescue" ]; then
        CONFIG="/local/kickstart/templates/isolinux-${OS}-rescue.cfg"
        ISOFILE="${HOST}-rescue.iso"
        # KS="/local/kickstart/ks/${HOST}-rescue.ks"
    else
       
CONFIG="/local/kickstart/templates/isolinux-${OS}-${MAJOR}.cfg"
        ISOFILE="${HOST}.iso"
        # KS="/local/kickstart/ks/${HOST}.ks"
    fi
    MAJOR=`echo $REL | awk -F. '{print $1}'`
    ISODIR=`mktemp -d /tmp/iso.XXXXXX`
    MKISOFSLOG=`mktemp /tmp/mkisofs.XXXX`
    cp -r /local/yum-repo/OS/${OS}-${REL}-x86_64/base/isolinux $ISODIR
    chmod -R u+w $ISODIR
    /bin/rm -f $ISODIR/isolinux/isolinux.cfg
    copymenu32 "${OS}-${REL}" "$ISODIR/isolinux"
    copymemtest "$ISODIR/isolinux"
    populate $CONFIG $ISODIR/isolinux/isolinux.cfg
    cd $ISODIR
    if [ -f "/local/kickstart/boot-isos/$ISOFILE" ]; then
        mv -f /local/kickstart/boot-isos/$ISOFILE
/local/kickstart/boot-isos/${ISOFILE}.prev
    fi
    mkisofs -input-charset iso-8859-1 -log-file $MKISOFSLOG -J -T -o
/local/kickstart/boot-isos/$ISOFILE -b isolinux/isolinux.bin -c isolinux/
boot.cat -no-emul-boot -boot-load-size 4 -boot-info-table -R -v .

    if [ $? -ne 0 ] ; then
        echo "Creation of boot ISO failed"
        echo "Check the log file: $MKISOFSLOG"
        echo "or check the build directory: $ISODIR"
        exit 1
    fi
    /bin/rm -rf $ISODIR $MKISOFSLOG

    HOSTNAME=`uname -n`
    MYIP=`gethostip -d $HOSTNAME`
    echo "Boot from http://$MYIP/kickstart/boot-isos/$ISOFILE with"
    echo "vm cdrom insert http://$MYIP/kickstart/boot-isos/$ISOFILE"
    echo "vm cdrom set boot_once"
    echo "vm cdrom get"
    echo "power reset"
}

I was assuming that I'm good as long as I use isolinux and menu.c32 from
the same package. Now I'm not too sure anymore.
I got varying results. Last week, I was only copying menu.c32 from the rpms
(I used isolinux.bin from the DVD installer). One of the users reported to
me the problem, I spent a few hours on it and I still couldn't figure it
out, and ended up using syslinux from the newly-released RHEL 6.4 ().
Tested builds RHEL 5.6 to 6.4, checked menu.c32 checksum (i checked
isolinux.bin's as well, but it seems its checksum is always changing after
mkisofs), isolinux is going through, all were good.

I'm using syslinux-4.02-8.el6.x86_64.rpm.

Today when I was about to rebuild a server, I'm getting the "menu.c32:
not
a COM32R image" message. I'm pretty sure nothing has changed (syslinux
rpm,
the script), but I'm not sure where to begin troubleshooting anymore. Can
anyone give me a clue?

regards,
Marc

Ady

2013-Mar-11 10:24 UTC

head link

[syslinux] menu.c32: not a COM32R image

> 
> Today when I was about to rebuild a server, I'm getting the
"menu.c32: not
> a COM32R image" message. I'm pretty sure nothing has changed
(syslinux rpm,
> the script), but I'm not sure where to begin troubleshooting anymore.
Can
> anyone give me a clue?
> 
> regards,
> Marc
I would suggest, as first troubleshooting steps, using menu.c32 and 
isolinux.bin official binaries (not re-building) from the official 
Syslinux 4.02 (as that's the version you are using in your rpm 
archive) from 
ftp://ftp.kernel.org/pub/linux/utils/boot/syslinux/4.xx/ "as-is".

It is possible that the problem might be related to the "x64" version 
of the rpm package. Testing with the official binaries might provide 
some clue.

HTH,
Ady.

Gene Cumm

2013-Mar-11 10:37 UTC

head link

[syslinux] menu.c32: not a COM32R image

On Mar 11, 2013 3:21 AM, "Marc Pascual" <marc.m.pascual at
gmail.com> wrote:>
> Hello,
>
> I have a simple shell script that I use to generate an iso installer
> depending on the release version that I want. The thing is that I extract
> isolinux and menu.c32 from the syslinux rpm of the latest redhat release.
> The reason I am doing it this way is because of the
>
> This is what does it:
>
> copymenu32() {
>     # $ cat /local/kickstart/templates/os-updates.txt
>     # RedHat-5.8|20120425
>     # RedHat-5.9|20130305
>     # RedHat-6.2|20120425
>     # RedHat-6.3|20120827
>     # RedHat-6.4|20130228
>     OSREL="`grep ^RedHat /local/kickstart/templates/os-updates.txt |
sort
> -n | tail -1 | awk -F'|' '{print $1}'`"
>     DEST=$2
>     PWD=`pwd`
>     SYSLINUX_RPM=`find /local/yum-repo/OS/${OSREL}-x86_64/base -name
> 'syslinux-*.x86_64.rpm' | egrep 'syslinux-[[:digit:]]'`
>     SYSLINUX_PATH=`rpm -qpl $SYSLINUX_RPM | grep -w menu.c32 | xargs
> dirname`
>     SYSLINUX_TMPDIR=`mktemp -d /tmp/syslinux.XXXXXX`
>     cd $SYSLINUX_TMPDIR
>     rpm2cpio $SYSLINUX_RPM | cpio -idm .${SYSLINUX_PATH}/menu.c32
>     rpm2cpio $SYSLINUX_RPM | cpio -idm .${SYSLINUX_PATH}/isolinux.bin
>     cp -f .${SYSLINUX_PATH}/menu.c32 $DEST
>     cp -f .${SYSLINUX_PATH}/isolinux.bin $DEST
>     cd $PWD
>     rm -rf $SYSLINUX_TMPDIR
> }
1) why not run rpm2cpio once?
> createiso() {
>     TYPE=$1
>     if [ $TYPE == "rescue" ]; then
>        
CONFIG="/local/kickstart/templates/isolinux-${OS}-rescue.cfg"
>         ISOFILE="${HOST}-rescue.iso"
>         # KS="/local/kickstart/ks/${HOST}-rescue.ks"
>     else
>        
CONFIG="/local/kickstart/templates/isolinux-${OS}-${MAJOR}.cfg"
>         ISOFILE="${HOST}.iso"
>         # KS="/local/kickstart/ks/${HOST}.ks"
>     fi
>     MAJOR=`echo $REL | awk -F. '{print $1}'`
>     ISODIR=`mktemp -d /tmp/iso.XXXXXX`
>     MKISOFSLOG=`mktemp /tmp/mkisofs.XXXX`
>     cp -r /local/yum-repo/OS/${OS}-${REL}-x86_64/base/isolinux $ISODIR
>     chmod -R u+w $ISODIR
>     /bin/rm -f $ISODIR/isolinux/isolinux.cfg
>     copymenu32 "${OS}-${REL}" "$ISODIR/isolinux"
>     copymemtest "$ISODIR/isolinux"
>     populate $CONFIG $ISODIR/isolinux/isolinux.cfg
>     cd $ISODIR
>     if [ -f "/local/kickstart/boot-isos/$ISOFILE" ]; then
>         mv -f /local/kickstart/boot-isos/$ISOFILE
> /local/kickstart/boot-isos/${ISOFILE}.prev
>     fi
>     mkisofs -input-charset iso-8859-1 -log-file $MKISOFSLOG -J -T -o
> /local/kickstart/boot-isos/$ISOFILE -b isolinux/isolinux.bin -c isolinux/
> boot.cat -no-emul-boot -boot-load-size 4 -boot-info-table -R -v .
>
>     if [ $? -ne 0 ] ; then
>         echo "Creation of boot ISO failed"
>         echo "Check the log file: $MKISOFSLOG"
>         echo "or check the build directory: $ISODIR"
>         exit 1
>     fi
>     /bin/rm -rf $ISODIR $MKISOFSLOG
>
>     HOSTNAME=`uname -n`
>     MYIP=`gethostip -d $HOSTNAME`
>     echo "Boot from http://$MYIP/kickstart/boot-isos/$ISOFILE
with"
>     echo "vm cdrom insert
http://$MYIP/kickstart/boot-isos/$ISOFILE"
>     echo "vm cdrom set boot_once"
>     echo "vm cdrom get"
>     echo "power reset"
> }
>
> I was assuming that I'm good as long as I use isolinux and menu.c32
from
> the same package. Now I'm not too sure anymore.
> I got varying results. Last week, I was only copying menu.c32 from the
rpms> (I used isolinux.bin from the DVD installer). One of the users reported to
> me the problem, I spent a few hours on it and I still couldn't figure
it
> out, and ended up using syslinux from the newly-released RHEL 6.4 ().
> Tested builds RHEL 5.6 to 6.4, checked menu.c32 checksum (i checked
> isolinux.bin's as well, but it seems its checksum is always changing
after
> mkisofs), isolinux is going through, all were good.
>
> I'm using syslinux-4.02-8.el6.x86_64.rpm.
>
> Today when I was about to rebuild a server, I'm getting the
"menu.c32: not
> a COM32R image" message. I'm pretty sure nothing has changed
(syslinux
rpm,> the script), but I'm not sure where to begin troubleshooting anymore.
Can
> anyone give me a clue?
>
> regards,
> Marc
The error means you have ISOLINUX-4.xx with a non-4.xx menu.c32 (likely
3.xx or not really a COM32 at all)

2) temporarily disable your cleanups.

3) check for /boot/isolinux /boot/syslinux and /syslinux in your ISO.

--Gene

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