One pendrive for all PC (Intel/AMD) computers - single-boot dual-boot multi-boot

[sudodus]

Yes, this img is able to upgrade the kernel like any installed system. But I have to make its boot system different, so that it will boot in the SP3.

-o-

After some more testing, I found some boot problems too in UEFI mode. So this compressed image must be improved.

[sammiev]

Installed it to a 16GB USB using EFI with no issues.

Thanks

[sudodus]

@haoz2,

I made a new system, that boots in a different way (similar to the previous systems that boot in your SP3, but where you cannot use the keyboard),

- with secure boot
- via the boot system for live drives

It is more complicated, but it is done now, and I hope it will be useful

You can find the new system in the following link. I think it is stable, and a better alternative if you want a portable installed system with Ubuntu 15.10:

Compressed image file with a live Ubuntu 14.04.2 and an installed Ubuntu 15.10

[haoz2]

Thanks @sudodus! This new system is amazing. Type cover 3 is working by just simply editing conf file. http://ubuntuforums.org/showthread.php?t=2300868

But upgrading kernel won't do. (I still wanna try other kernel since multi-touch & typecover 4 aren't fully working.)
1. I downloaded kernel binaries and installed it. New initrd & linux images are present in /boot/.
2. Delete old symbolic links and re-link them.
3. Edit /media/guru/usb-live/boot/grub/grub.cfg (I find the only line I can edit in a menuentry is the last line: initrd /boot/initrd.img-4.2.0-25-generic )

Then reboot and choose corresponding entry. It loads a while and says "Gave up waiting for root device".

[sudodus]

There are two lines to edit, so that they point to your new kernel:

A. the line starting with linux and the line starting with initrd

B. alternatively two symbolic links to update, one for initrd.img and one for vmlinuz.

[haoz2]

Thanks! I though it has to be ".efi.signed" but actually not.
After upgrading to latest patched kernel here, everything seems working perfectly!

[sudodus]

Congratulations haoz2

[haoz2]

Cheers!

[deitcher]

Have you ever seen it able to boot to grub using both BIOS and UEFI, but the individual ISOs only will boot if the system was booted BIOS?

- If set to BIOS/CSM, I get the grub menu, can pick one of my 6 (and growing) options, and I see system startup log messages immediately.
- If set to EFI, I get the grub menu, I can pick one of my options, I get "error: no suitable video mode found. Booting in blind mode." and then it hangs. It doesn't matter what ISO or distro I use.

I tried this both under VirtualBox (on Ubuntu and on Mac) and booting the physical machine directly.

[sudodus]

Please tell me more about this problem!

I know that this grub-n-iso method does not work with secure boot.

(There is an alternative for secure boot, but does not work with 32-bit systems: mkusb/persistent: Using data from the source iso file)

I know that there are problems with graphics when I try to boot Ubuntu Server in UEFI mode. See this link: installing Ubuntu Server in UEFI mode

If I understand correctly, you are talking about problems, that are related to graphics.

Please tell me

- which iso files you have tried

- which version of VirtualBox you are using

- the specification of the computer:
. Brand name and model
. CPU
. RAM (size)
. graphics chip/card
. wifi chip/card

I will try to see what can be done with your problem.

Edit: I have not developed this method for all [major] linux distros. But it works for me (and several other users) with the current versions of Ubuntu and Ubuntu based distros and re-spins. Your problem might be that the menuentry must be modified for each non-Ubuntu iso file.

See this link: https://wiki.archlinux.org/index.php...boot_USB_drive