Thread: grub 2 "invalid signature" chainloader CentOS 6

hello all,

trying triple boot system ubuntu 11.10, windows 7, , centos 6.2. able boot each 1 using os_probe. trying chainload centos 6.2 may update kernels , not have boot ubuntu run update-grub2.

looking @ configuration windows 7 , seems using chainloader boot windows boot loader. copied config changing drive location , insmod ntfs ext2 when try load invalid signature error message. have done google searches , tried many thing have not worked. ideas can resolve issue.

here configuration centos entry.

code:

menuentry "centos" {          insmod part_msdos          insmod ext2          set root='(hd2,msdos1)'          chainloader +1  }

thank time , have great day!

regards,
jd

drive number can depend on drive bios set boot from. bios boot drive hd0, if sdc. hd numbers grub in drive order.

new boot script being tested, try first:

code:

wget -o bootinfoscript 'http://bootinfoscript.git.sourceforge.net/git/gitweb.cgi?p=bootinfoscript/bootinfoscript;a=blob_plain;f=bootinfoscript;hb=head' chmod a+x bootinfoscript sudo bash bootinfoscript

current version of boot info script:
boot info script courtesy of forum members meierfra & gert hulselmans
page instructions , download:
http://bootinfoscript.sourceforge.net/
paste contents of results.txt in new reply, highlight entire file , click on # in edit panel(code tags) make easier read.
or can generate tags first pressing # icon in new reply edit toolbar , paste contents between generated [ code] paste here [ /code] tags.
v60 has improved formating , requires code tags make legible. new version zip file have extract .sh run.
install these before running script:
sudo apt-get install gawk
sudo apt-get install xz-utils

Forum The Ubuntu Forum Community Ubuntu Official Flavours Support General Help [SOLVED] grub 2 "invalid signature" chainloader CentOS 6

Ubuntu