Chainload boot of Ubuntu installed on 32GB SD card from legacy Grub boot on USB

Posted by Gary Darsey on Ask Ubuntu See other posts from Ask Ubuntu or by Gary Darsey
Published on 2012-11-03T02:53:11Z Indexed on 2012/11/03 5:26 UTC
Read the original article Hit count: 468

Filed under:

grub2

|

usb-drive

I have Ubuntu installed on a 32 GB SD card (in the Storage Expansion slot on an Acer Aspire One) with Grub2 installed in the same partition. I boot into legacy Grub on a USB drive and would like to boot by chainloading Grub2 from Grub (kernel/initrd or symlink booting would also be fine), but I haven't figured out how to do this from legacy Grub CLI. Output from blkid for this partition is /dev/mmcblk0p1: LABEL="Ubuntu" UUID="7ceb9fa7-238c-4c5d-bb8e-2c655652ddec" TYPE='ext4" / fdisk -lu information Boot indicator ID 83.

Related entries in grub.cfg:

search --no-floppy --fs-uuid --set-root 7ceb9fa7-238c-4c5d-bb8e-2c655652ddec

linux /boot/vmlinuz-3.5.0-17-generic root=UUID=7ceb9fa7-238c-4c5d-bb8e-2c655652ddec...

initrd /boot/initrd.img-3.5.0-17-generic

I can't seem to replicate this in legacy Grub. Is there any way get Grub2 to chainload? How do I set root with UUID in legacy Grub?

I prefer to boot from USB. Would Grub2 on USB (copying the grub.cfg generated during installation) be an option?

© Ask Ubuntu or respective owner

Related posts about grub2

How to enable boot timeout in Grub2?

as seen on Super User - Search for 'Super User'
I'm am trying to enable the boot timeout selection in grub2 on Ubuntu 9.10. I modified /etc/default/grub: GRUB_DEFAULT=0 #GRUB_HIDDEN_TIMEOUT=0 GRUB_HIDDEN_TIMEOUT_QUIET=false GRUB_TIMEOUT=2 GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian` GRUB_CMDLINE_LINUX_DEFAULT="splash quiet" GRUB_CMDLINE_LINUX="" and… >>> More
Windows 8 changes GRUB2 in every boot!

as seen on Ask Ubuntu - Search for 'Ask Ubuntu'
I've installed Win8 and Ubuntu 12.10 both UEFI style (win8 first then ubuntu). GRUB2 shows me Both Ubuntu and Win8 entries. If I boot into Ubuntu is fine. I could reboot anytime I will see GRUB2 unchanged. The story changes when I Boot into Win8. When I boot to Win8 using GRUB2 it takes me to the… >>> More
How to install Grub2 under several common scenarios

as seen on Ask Ubuntu - Search for 'Ask Ubuntu'
I feel the community has long needed a clean guide on how to install Grub2 under a a few extremely common scenarios. I will accept answer as solved when it has one section per scenario and assumes nothing other than what is specified. Please add to the existing answer, wiki style, keeping to the original… >>> More
Make bootable iso with grub chainloading

as seen on Super User - Search for 'Super User'
My parents' pc has windows 7's boot manager installed at MBR and grub2 is installed on /dev/sda2 (booting linux on /dev/sda2). I want to make a bootable cd so that when booted from it just chainloads into the boot manager on the second partition. I assume using grub rather than grub2 for this will… >>> More
So HERE'S how you get into grub2 if there's no boot menu in Ubuntu Lucid 10.04

as seen on Internet.com - Search for 'Internet.com'
<b>Click:</b> "I installed Ubuntu 10.04 Lucid from a daily build yet couldn't boot into my fresh new desktop because I needed to add nomodeset to the grub2 boot line and didn't know how to do that because there was no boot screen visible." >>> More

Related posts about usb-drive

USB-drive serial number under linux C++

as seen on Stack Overflow - Search for 'Stack Overflow'
Is there any way to determine s/n of usb-drive in linux using C++ ? If not C++ is there any other way different from 'hwinfo -disk' and 'hdparm -i' ? >>> More
SafeStick Provides Secure USB Drive Alternative

as seen on Internet.com - Search for 'Internet.com'
Having dodged a widespread backdoor that shut down the protection provided by a number of secure USB drives, SafeStick is establishing itself as an alternative for enterprise security. >>> More
SafeStick Provides Secure USB Drive Alternative

as seen on Internet.com - Search for 'Internet.com'
Having dodged a widespread backdoor that shut down the protection provided by a number of secure USB drives, SafeStick is establishing itself as an alternative for enterprise security. >>> More
Detect if any USB drive is detected or if not using WinForm Application in Visual C#

as seen on Stack Overflow - Search for 'Stack Overflow'
I want to do the following things in my application 1) I want to display whether any USB drive is inserted or not in my application to prompt the user to insert a USB drive. I just want to notify the user if any USB dirve is inserted else prompt him to insert one using a label or something (i want… >>> More
Detect if any USB drive is detected or not using WinForm Application in Visual C#

as seen on Stack Overflow - Search for 'Stack Overflow'
I want to do the following things in my application 1) I want to display whether any USB drive is inserted or not in my application to prompt the user to insert a USB drive. I just want to notify the user if any USB dirve is inserted else prompt him to insert one using a label or something (i want… >>> More