Gist: I am trying to add a Ubuntu instance which is on the secondary hard drive to grub which is on the primary hard drive running CentOS. grub version is GNU GRUB 0.97.
The primary hard drive contains CentOS release 6.8 (Final), x86_64 Linux 3.8.8. The grub entry item for the kernel I am running is
title CentOS (3.8.8) root (hd0,0) kernel /vmlinuz-3.8.8 ro root=/dev/mapper/vg_sakplab100-lv_root rd_NO_LUKS LANG=en_US.UTF-8 rd_LVM_LV=vg_sakplab100/lv_swap rd_NO_MD rd_LVM_LV=vg_sakplab100/lv_root SYSFONT=latarcyrheb-sun16 crashkernel=128M KEYBOARDTYPE=pc KEYTABLE=us rd_NO_DM initrd /initramfs-3.8.8.img I was given another hard drive that has Ubuntu on it (not sure which version). If I run fdisk -l the secondary hard drive info is:
Device Boot Start End Blocks Id System /dev/sdb1 * 1 32 248832 83 Linux Partition 1 does not end on cylinder boundary. /dev/sdb2 32 60802 488134657 5 Extended Partition 2 does not end on cylinder boundary. Partition 2 does not start on physical sector boundary. /dev/sdb5 32 60802 488134656 8e Linux LVM After mounting /dev/sdb1 I was able to view the /grub/grub.cfg file. There are a number of menu items though I think the relevant entry is the following (the other ones had recovery in their title:
menuentry 'Ubuntu, with Linux 4.4.0-31-generic' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-4.4.0-31-generic-advanced-07c9c822-a9c3-4df5-8965-81b5af4e5dff' { recordfail load_video gfxmode $linux_gfx_mode insmod gzio insmod part_msdos insmod ext2 set root='hd0,msdos1' if [ x$feature_platform_search_hint = xy ]; then search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos1 --hint-efi=hd0,msdos1 --hint-baremetal=ahci0,msdos1 5ff7efa5-1a24-4e42-bba0-c3b1a4b86fd3 else search --no-floppy --fs-uuid --set=root 5ff7efa5-1a24-4e42-bba0-c3b1a4b86fd3 fi echo 'Loading Linux 4.4.0-31-generic ...' linux /vmlinuz-4.4.0-31-generic root=/dev/mapper/dhcp--10--33--42--96--vg-root ro echo 'Loading initial ramdisk ...' initrd /initrd.img-4.4.0-31-generic } I have tried creating a few menu items, but it doesn't boot the Ubuntu instance. Does anyone know how I would create a new menuitem in grub so I can boot the Ubuntu instance? Thanks
