Description of problem:  It looks like a script assumes common sense partitioning and booting. It is looking for (hd0,0)/boot. There is none here (LVM installation). 

Just in case, here is section of # urpmi --auto-update messages

[...}
 Preparing...                     #############################################
    10/16: mageia-theme-common   #############################################
    11/16: mageia-theme-Default  #############################################
defaulting background resolution to 1024x768
sh: -c: line 0: syntax error near unexpected token `hd0,0'
sh: -c: line 0: `/bin/zcat (hd0,0)/boot/initrd.img 2> /dev/null | /bin/cpio -t &> /dev/null'
can't open (hd0,0)/boot/initrd.img: No such file or directory
/usr/share/bootsplash/scripts/make-boot-splash-raw: line 49: (hd0,0)/boot/initrd.img: No such file or directory
defaulting background resolution to 1024x768
sh: -c: line 0: syntax error near unexpected token `hd0,0'
sh: -c: line 0: `/bin/zcat (hd0,0)/boot/initrd.img 2> /dev/null | /bin/cpio -t &> /dev/null'
can't open (hd0,0)/boot/initrd.img: No such file or directory
/usr/share/bootsplash/scripts/make-boot-splash-raw: line 49: (hd0,0)/boot/initrd.img: No such file or directory
defaulting background resolution to 1024x768
sh: -c: line 0: syntax error near unexpected token `hd0,0'
sh: -c: line 0: `/bin/zcat (hd0,0)/boot/initrd-2.6.37.4-desktop-1.mga.img 2> /dev/null | /bin/cpio -t &> /dev/null'
can't open (hd0,0)/boot/initrd-2.6.37.4-desktop-1.mga.img: No such file or directory
/usr/share/bootsplash/scripts/make-boot-splash-raw: line 49: (hd0,0)/boot/initrd-2.6.37.4-desktop-1.mga.img: No such file or directory
defaulting background resolution to 1024x768
sh: -c: line 0: syntax error near unexpected token `hd0,0'
sh: -c: line 0: `/bin/zcat (hd0,0)/boot/initrd.img 2> /dev/null | /bin/cpio -t &> /dev/null'
can't open (hd0,0)/boot/initrd.img: No such file or directory
/usr/share/bootsplash/scripts/make-boot-splash-raw: line 49: (hd0,0)/boot/initrd.img: No such file or directory
defaulting background resolution to 1024x768
sh: -c: line 0: syntax error near unexpected token `hd0,0'
sh: -c: line 0: `/bin/zcat (hd0,0)/boot/initrd-2.6.38-desktop-1.mga.img 2> /dev/null | /bin/cpio -t &> /dev/null'
can't open (hd0,0)/boot/initrd-2.6.38-desktop-1.mga.img: No such file or directory
/usr/share/bootsplash/scripts/make-boot-splash-raw: line 49: (hd0,0)/boot/initrd-2.6.38-desktop-1.mga.img: No such file or directory
defaulting background resolution to 1024x768
sh: -c: line 0: syntax error near unexpected token `hd0,0'
sh: -c: line 0: `/bin/zcat (hd0,0)/boot/initrd.img 2> /dev/null | /bin/cpio -t &> /dev/null'
can't open (hd0,0)/boot/initrd.img: No such file or directory
/usr/share/bootsplash/scripts/make-boot-splash-raw: line 49: (hd0,0)/boot/initrd.img: No such file or directory
defaulting background resolution to 1024x768
sh: -c: line 0: syntax error near unexpected token `hd0,0'
sh: -c: line 0: `/bin/zcat (hd0,0)/boot/initrd-2.6.38.1-desktop-1.mga.img 2> /dev/null | /bin/cpio -t &> /dev/null'
can't open (hd0,0)/boot/initrd-2.6.38.1-desktop-1.mga.img: No such file or directory
/usr/share/bootsplash/scripts/make-boot-splash-raw: line 49: (hd0,0)/boot/initrd-2.6.38.1-desktop-1.mga.img: No such file or directory
defaulting background resolution to 1024x768
sh: -c: line 0: syntax error near unexpected token `hd0,0'
sh: -c: line 0: `/bin/zcat (hd0,0)/boot/initrd.img 2> /dev/null | /bin/cpio -t &> /dev/null'
can't open (hd0,0)/boot/initrd.img: No such file or directory
/usr/share/bootsplash/scripts/make-boot-splash-raw: line 49: (hd0,0)/boot/initrd.img: No such file or directory
defaulting background resolution to 1024x768
sh: -c: line 0: syntax error near unexpected token `hd0,0'
sh: -c: line 0: `/bin/zcat (hd0,0)/boot/initrd-2.6.38.2-desktop-1.mga.img 2> /dev/null | /bin/cpio -t &> /dev/null'
can't open (hd0,0)/boot/initrd-2.6.38.2-desktop-1.mga.img: No such file or directory
/usr/share/bootsplash/scripts/make-boot-splash-raw: line 49: (hd0,0)/boot/initrd-2.6.38.2-desktop-1.mga.img: No such file or directory
defaulting background resolution to 1024x768
[...]



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