I believe that I see a kernel mismatch.

Your mkinitrd command uses ...while your grub.cfg is using You should decide if you're going to run SMP or not. If you are then you want the kernel-generic-smp and kernel-modules-smp packaged installed. If not, then have the kernel-generic and kernel-modules packages installed.

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Thanks Richard, you got it!!!

Back to my post question...

Here is my grub2 automatic output for Slackware:

menuentry 'Slackware Linux (Slackware 14.1) (on /dev/sda8)' --class gnu-linux --class gnu --class os $menuentry_id_option 'osprober-gnulinux-simple-2b64bf4d-d3b8-428d-81ce-516636141ac6' {
insmod part_msdos
insmod ext2
set root='hd0,msdos8'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos8 --hint-efi=hd0,msdos8 --hint-baremetal=ahci0,msdos8 --hint='hd0,msdos8' 2b64bf4d-d3b8-428d-81ce-516636141ac6
else
search --no-floppy --fs-uuid --set=root 2b64bf4d-d3b8-428d-81ce-516636141ac6
fi
linux /boot/vmlinuz-generic-3.10.17 root=/dev/sda8
}
submenu 'Advanced options for Slackware Linux (Slackware 14.1) (on /dev/sda8)' $menuentry_id_option 'osprober-gnulinux-advanced-2b64bf4d-d3b8-428d-81ce-516636141ac6' {
menuentry 'Slackware Linux (Slackware 14.1) (on /dev/sda8)' --class gnu-linux --class gnu --class os $menuentry_id_option 'osprober-gnulinux-/boot/vmlinuz-generic-3.10.17--2b64bf4d-d3b8-428d-81ce-516636141ac6' {
insmod part_msdos
insmod ext2
set root='hd0,msdos8'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos8 --hint-efi=hd0,msdos8 --hint-baremetal=ahci0,msdos8 --hint='hd0,msdos8' 2b64bf4d-d3b8-428d-81ce-516636141ac6
else
search --no-floppy --fs-uuid --set=root 2b64bf4d-d3b8-428d-81ce-516636141ac6
fi
linux /boot/vmlinuz-generic-3.10.17 root=/dev/sda8
}
menuentry 'Slackware Linux (Slackware 14.1) (on /dev/sda8)' --class gnu-linux --class gnu --class os $menuentry_id_option 'osprober-gnulinux-/boot/vmlinuz-generic-smp-3.10.17-smp--2b64bf4d-d3b8-428d-81ce-516636141ac6' {
insmod part_msdos
insmod ext2
set root='hd0,msdos8'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos8 --hint-efi=hd0,msdos8 --hint-baremetal=ahci0,msdos8 --hint='hd0,msdos8' 2b64bf4d-d3b8-428d-81ce-516636141ac6
else
search --no-floppy --fs-uuid --set=root 2b64bf4d-d3b8-428d-81ce-516636141ac6
fi
linux /boot/vmlinuz-generic-smp-3.10.17-smp root=/dev/sda8
}
menuentry 'Slackware Linux (Slackware 14.1) (on /dev/sda8)' --class gnu-linux --class gnu --class os $menuentry_id_option 'osprober-gnulinux-/boot/vmlinuz-huge-3.10.17--2b64bf4d-d3b8-428d-81ce-516636141ac6' {
insmod part_msdos
insmod ext2
set root='hd0,msdos8'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos8 --hint-efi=hd0,msdos8 --hint-baremetal=ahci0,msdos8 --hint='hd0,msdos8' 2b64bf4d-d3b8-428d-81ce-516636141ac6
else
search --no-floppy --fs-uuid --set=root 2b64bf4d-d3b8-428d-81ce-516636141ac6
fi
linux /boot/vmlinuz-huge-3.10.17 root=/dev/sda8
}
menuentry 'Slackware Linux (Slackware 14.1) (on /dev/sda8)' --class gnu-linux --class gnu --class os $menuentry_id_option 'osprober-gnulinux-/boot/vmlinuz-huge-smp-3.10.17-smp--2b64bf4d-d3b8-428d-81ce-516636141ac6' {
insmod part_msdos
insmod ext2
set root='hd0,msdos8'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos8 --hint-efi=hd0,msdos8 --hint-baremetal=ahci0,msdos8 --hint='hd0,msdos8' 2b64bf4d-d3b8-428d-81ce-516636141ac6
else
search --no-floppy --fs-uuid --set=root 2b64bf4d-d3b8-428d-81ce-516636141ac6
fi
linux /boot/vmlinuz-huge-smp-3.10.17-smp root=/dev/sda8
}
}


What I would like is the 'initrd initrd.gz' automatically inserted in the generic kernel output.

Is that from using my 09_slackware_linux script? Even so, the 10_linux script should pick up your initrd.gz image.

Try running the following command as root: You should see some messages printed out to stderr (your console) that would be hidden in all the other output. It should look somewhat like The stuff in bold indicates that the scripts found your initrd image. I'm using the 64 bit version of Slackware, so my kernel names are different.

1 members found this post helpful.

No, I'm not using 09_slackware_linux script. I use another distro (Fedora) to boot from sda.So 10_linux script refers to Fedora.

### BEGIN /etc/grub.d/10_linux ###
menuentry 'Fedora, with Linux 3.12.5-302.fc20.x86_64' --class fedora --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-3.12.5-302.fc20.x86_64-advanced-68f1196f-abb5-4635-a848-faa252f4475f' {
load_video
set gfxpayload=keep
insmod gzio
insmod part_msdos
insmod ext2
set root='hd0,msdos2'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos2 --hint-efi=hd0,msdos2 --hint-baremetal=ahci0,msdos2 --hint='hd0,msdos2' 68f1196f-abb5-4635-a848-faa252f4475f
else
search --no-floppy --fs-uuid --set=root 68f1196f-abb5-4635-a848-faa252f4475f
fi
linux /boot/vmlinuz-3.12.5-302.fc20.x86_64 root=UUID=68f1196f-abb5-4635-a848-faa252f4475f ro vconsole.font=latarcyrheb-sun16 rhgb quiet
initrd /boot/initramfs-3.12.5-302.fc20.x86_64.img
}
menuentry 'Fedora, with Linux 3.11.10-301.fc20.x86_64' --class fedora --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-3.11.10-301.fc20.x86_64-advanced-68f1196f-abb5-4635-a848-faa252f4475f' {
load_video
set gfxpayload=keep
insmod gzio
insmod part_msdos
insmod ext2
set root='hd0,msdos2'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos2 --hint-efi=hd0,msdos2 --hint-baremetal=ahci0,msdos2 --hint='hd0,msdos2' 68f1196f-abb5-4635-a848-faa252f4475f
else
search --no-floppy --fs-uuid --set=root 68f1196f-abb5-4635-a848-faa252f4475f
fi
linux /boot/vmlinuz-3.11.10-301.fc20.x86_64 root=UUID=68f1196f-abb5-4635-a848-faa252f4475f ro vconsole.font=latarcyrheb-sun16 rhgb quiet
initrd /boot/initramfs-3.11.10-301.fc20.x86_64.img
}
menuentry 'Fedora, with Linux 0-rescue-d9c58866bd8a4401871fdc6b39693afb' --class fedora --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-0-rescue-d9c58866bd8a4401871fdc6b39693afb-advanced-68f1196f-abb5-4635-a848-faa252f4475f' {
load_video
insmod gzio
insmod part_msdos
insmod ext2
set root='hd0,msdos2'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos2 --hint-efi=hd0,msdos2 --hint-baremetal=ahci0,msdos2 --hint='hd0,msdos2' 68f1196f-abb5-4635-a848-faa252f4475f
else
search --no-floppy --fs-uuid --set=root 68f1196f-abb5-4635-a848-faa252f4475f
fi
linux /boot/vmlinuz-0-rescue-d9c58866bd8a4401871fdc6b39693afb root=UUID=68f1196f-abb5-4635-a848-faa252f4475f ro vconsole.font=latarcyrheb-sun16 rhgb quiet
initrd /boot/initramfs-0-rescue-d9c58866bd8a4401871fdc6b39693afb.img
}

### END /etc/grub.d/10_linux ###

I don't expect RedHat to support anything other than RedHat/Fedora and Windows. (I don't expect Slackware to support RedHat/Fedora, either.) I don't use RedHat other than at work (and we have our own custom installer), but it would not shock me to find that they've changed 10_linux to look only for the stuff that RedHat/Fedora uses.

So, just add the 09_slackware script given in the second link in post #3 of this thread to your Fedora installation and re-run grub-mkconfig. If you want the Fedora stuff to stay as the default boot, rename 09_slackware to 11_slackware.

1 members found this post helpful.

Hi Richard,

I gave a try to your script but sadly grub.cfg is empty. See:

### BEGIN /etc/grub.d/11_slackware_linux ###
### END /etc/grub.d/11_slackware_linux ###

Don't worry, as I stated above the 'huge kernel' is fine enough for me.

Thanks a lot for your professional help!!!

Well, you can be sneaky and rename or copy initrd.gz to initramfs.img and see if the RedHat version picks it up.