GRUB Boot SliTaz 4.0 iso

You need merge four rootfs*.gz in one.

cat rootfs4.gz rootfs3.gz rootfs2.gz rootfs1.gz > rootfs.gz

and copy new rootfsgz to /boot, then create new iso file.

grub.cfg

menuentry "SliTaz-4.0-RC3.iso" {
 set isofile="/boot/iso/slitaz-4.0-rc3.iso"
 loopback loop $isofile
 linux (loop)/boot/bzImage rw root=/dev/null vga=normal autologin lang=en kmap=us
 initrd (loop)/boot/rootfs.gz
}

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