Chainload into GRUB2 for multi-boot

SaminBare · posted: 2013-04-18 20:38

System: Host: sid Kernel: 3.7.10-antix.2-amd64-smp x86_64 (64 bit) Desktop: IceWM 1.3.7 Distro: antiX-13-beta2-pt1_x64-full Ahmad Sami 24 March 2013
Machine: System: LENOVO product: 0679 version: Lenovo G560 Mobo: LENOVO model: N/A Bios: LENOVO version: 29CN35WW(V2.12) date: 12/08/2010
CPU: Dual core Intel Pentium CPU P6100 (-MCP-) cache: 3072 KB flags: (lm nx sse sse2 sse3 ssse3) Clock Speeds: 1: 933.00 MHz 2: 933.00 MHz
Graphics: Card: Intel Core Processor Integrated Graphics Controller X.Org: 1.12.4 drivers: intel (unloaded: fbdev,vesa) Resolution: 1366x768@60.0hz
Audio: Card: Intel 5 Series/3400 Series High Definition Audio driver: snd_hda_intel Sound: ALSA ver: k3.7.10-antix.2-amd64-smp
Network: Card-1: Realtek RTL8101E/RTL8102E PCI Express Fast Ethernet controller driver: r8169
IF: eth0 state: up speed: 100 Mbps duplex: full mac:xxxx Card-2: Broadcom BCM4313 802.11b/g/n Wireless LAN Controller driver: bcma-pci-bridge
Info: Processes: 97 Uptime: 1:01 Memory: 282.6/7789.6MB Client: Shell (bash) inxi: 1.8.45

Need GRUB2 and get rif of Grub-Legacy -- How2

EDIT:
I had just finished mounting sda2 on /media so that osprober and update-grub could"do their thing," using System Rescue CD fully
loaded to my new"8GB" Mushkin 2X4 RAM, when somehow a wrong key got pushed and Wham! my laptop went dead with black screen and, in ULH
corner, blinking underscore cursor. Had to hard boot.

I had done this to prepare hdd for multi-boot with antiX-13-beta 64bit, Slackware 13.37 and Sabayon11. Long story short, after getting machine up, could not unhinge the /media/sda2 mount until doing a MD55 or something (from SysResCD) to the MBR. I noticed slow performance (hipo is why I use antiX in the first place) and found more than one grub/menu.lst entry pointing to mount on /media.

Tried to

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umount /media/sda2

and found could not, as root. Got both this and the fstab issues straightened out, I hope.

Cleaned up fstab with those damned UUIDs, now need to get a chainload to GRUB2, I presume. I need some MEPIS repo address I've since lost track of, too, so that grub-2.0 or such can be installed when ready.

Am I on the right path?

rokytnji · posted: 2013-04-19 05:28

Well, on my multiboots I do the opposite. I use grub legacy instead of grub2. When I install a grub2 distro. I install grub2 to root instead of mbr and make a chainload entry of it in legacy grub.

Update-grub when a new kernel install happens on whatever distro I am in. When I pick a chainload grub2 menu entry.
That gives me a grub2 screen next and I can pick what kernel or operating system listed in grub 2 I wanna boot into.

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timeout 10
color cyan/blue white/blue
foreground ffffff
background 0639a1

gfxmenu /boot/grub/message
title AntiX  at sda1, kernel 3.3.5-antix.1-486-smp
kernel /boot/vmlinuz-3.3.5-antix.1-486-smp root=/dev/sda1 nomce quiet nosplash nouveau.modeset=0 vga=791
initrd /boot/initrd.img-3.3.5-antix.1-486-smp
boot

title Semplice GNU/Linux, with Linux 3.2.0-3-486
rootnoverify (hd1,1)
chainloader +1

title Vector STD Gold 7 at /dev/sda2
rootnoverify (hd0,1)
chainloader +1

title Puppy Linux 529 frugal in sdb1 dir macpup529frugal
rootnoverify (hd1,0)
kernel /macpup529frugal/vmlinuz pmedia=atahd psubdir=macpup529frugal
initrd /macpup529frugal/initrd.gz

### BEGIN AUTOMAGIC KERNELS LIST
## lines between the AUTOMAGIC KERNELS LIST markers will be modified
## by the debian update-grub script except for the default options below

## DO NOT UNCOMMENT THEM, Just edit them to your needs

## ## Start Default Options ##
## default kernel options
## default kernel options for automagic boot options
## If you want special options for specific kernels use kopt_x_y_z
## where x.y.z is kernel version. Minor versions can be omitted.
## e.g. kopt=root=/dev/hda1 ro
##      kopt_2_6_8=root=/dev/hdc1 ro
##      kopt_2_6_8_2_686=root=/dev/hdc2 ro
# kopt=root=UUID=009157e5-dcf1-465a-ae33-6fb9cf5c3b38 ro
# kopt_2_6=root=UUID=009157e5-dcf1-465a-ae33-6fb9cf5c3b38 ro nosplash quiet

## default grub root device
## e.g. groot=(hd0,0)
# groot=(hd0,0)

## should update-grub create alternative automagic boot options
## e.g. alternative=true
##      alternative=false
# alternative=true

## should update-grub lock alternative automagic boot options
## e.g. lockalternative=true
##      lockalternative=false
# lockalternative=false

## additional options to use with the default boot option, but not with the
## alternatives
## e.g. defoptions=vga=791 resume=/dev/hda5
# defoptions=

## should update-grub lock old automagic boot options
## e.g. lockold=false
##      lockold=true
# lockold=false

## Xen hypervisor options to use with the default Xen boot option
# xenhopt=

## Xen Linux kernel options to use with the default Xen boot option
# xenkopt=console=tty0

## altoption boot targets option
## multiple altoptions lines are allowed
## e.g. altoptions=(extra menu suffix) extra boot options
##      altoptions=(single-user) single
# altoptions=(init-3) 3

## controls how many kernels should be put into the menu.lst
## only counts the first occurence of a kernel, not the
## alternative kernel options
## e.g. howmany=all
##      howmany=7
# howmany=all

## should update-grub create memtest86 boot option
## e.g. memtest86=true
##      memtest86=false
# memtest86=true

## should update-grub adjust the value of the default booted system
## can be true or false
# updatedefaultentry=false

## should update-grub add savedefault to the default options
## can be true or false
# savedefault=false

## ## End Default Options ##

title      Debian GNU/Linux, kernel 3.5.2-antix.1-486-smp
root      (hd0,0)
kernel      /boot/vmlinuz-3.5.2-antix.1-486-smp root=UUID=009157e5-dcf1-465a-ae33-6fb9cf5c3b38 ro
initrd      /boot/initrd.img-3.5.2-antix.1-486-smp

title      Debian GNU/Linux, kernel 3.5.2-antix.1-486-smp (init-3)
root      (hd0,0)
kernel      /boot/vmlinuz-3.5.2-antix.1-486-smp root=UUID=009157e5-dcf1-465a-ae33-6fb9cf5c3b38 ro 3
initrd      /boot/initrd.img-3.5.2-antix.1-486-smp

title      Debian GNU/Linux, kernel 3.3.5-antix.1-486-smp
root      (hd0,0)
kernel      /boot/vmlinuz-3.3.5-antix.1-486-smp root=UUID=009157e5-dcf1-465a-ae33-6fb9cf5c3b38 ro
initrd      /boot/initrd.img-3.3.5-antix.1-486-smp

title      Debian GNU/Linux, kernel 3.3.5-antix.1-486-smp (init-3)
root      (hd0,0)
kernel      /boot/vmlinuz-3.3.5-antix.1-486-smp root=UUID=009157e5-dcf1-465a-ae33-6fb9cf5c3b38 ro 3
initrd      /boot/initrd.img-3.3.5-antix.1-486-smp

title      Debian GNU/Linux, kernel memtest86+
root      (hd0,0)
kernel      /boot/memtest86+.bin

### END DEBIAN AUTOMAGIC KERNELS LIST

Semplice and Vector are grub2 distros. I use AntiX 11 grub legacy to boot everything. This is with 2 ide hard drives. 1 60gig. 1 40gig.

SaminBare · posted: 2013-04-19 16:40

I decided to forego Sabayon, the root of my concern, because my IP connection is too slow for this distro, anyway, IMHO.
Got VL7 going on half the hdd, next will be antiX. LILO currently in MBR. Grub legacy did not want to see VL7 last time I tried to install antiX after VL7.
Grub2 did not give a problem in this regard, hence my inclination to use it. Call me a dummy, but I am still trying to figure out which procedeure would be best.
I want to use 64bit antiX. Open to suggestions on how best to proceed.

SaminBare · posted: 2013-04-20 03:19

Screw both GRUBs! I'll just use LILO.

male · posted: 2013-04-22 18:32

To start a grub2 distro from grub-legacy helped me this Entry:

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title       Chainload into GRUB v2
root        (hd0,yx)
kernel      /boot/grub/core.img

(grub2 from grub 1 chainloaded)