Has anyone here been able to boot the Clear Linux ISO directly via Grub2? I've tried everything I know and failed. Not saying much I know, so I'm asking the booting experts.
They say it boots fine when installed to a USB drive and fine in VM machines but no help booting it directly.
I understand you desisted to test Clear Linux.iso, but following info can be useful for you or future readers of this topic, to help boot on a MBR/CSM PC almost everything from a USB device with grub4dos or grub2 environment.
Assuming your USB device is already capable to boot using grub4dos or grub2 and you are only MBR/CSM booting, as you mentioned in other of your post, on this page: https://github.com/a...ub2-filemanager
There is the code to run A1ve Grub Filemanager (agFM), by mens of grub4dos menu.lst or grub2 config file, once it loads you will be able to boot almost everything through its graphical environment, no need to type any code yourselt, agFM will do all requiered.
map --mem /grubfm.iso (0xff)
Just download the last version from the link in same page.
I'll quote here the direct link of current last version for your convenience:
Select last version in your lang to download, extract it to a file and copy grubfm.iso (for MBR/CSM only that's required) to the root your USB device (it is a good practice to make sure your files are not fragmented), using the given code to load it from grub4dos or grub2 (as required), you will be now able to MBR/CSM boot almost everything from Windows WinPE.iso, WIM files or VHD, to Linux_Live.iso having several options to load each one.