Tiny Core Extensions > TCE Tips & Tricks
Howto make a legacy bios/uefi dual boot usb stick with grub2
Dr.FrankenHouse:
Hi,
I followed your guide, the usb stick starts regularly on a pc with uefi and 64bit cpu.
I have a newbie question: does the usb also works with 32-bit PCs?
jazzbiker:
Hi, Dr.FrankenHouse!
In general answer is yes. Details depend on what boot entry You used on 64-bit PC. Have You booted "core64" or "corepure64"?
Dr.FrankenHouse:
Hi jazzbiker,
I booted my laptop (uefi & cpu i7) without any problem with corepure64 entry.
I tried to boot my netbook (cpu atom 32bit) and it won't start, it didn't recognize the partition (bios recognize the usb stick and I set it like first boot).
I immediately thought that the problem was how I made the usb stick, but before I restarted all the procedure I would like to know if it will go or not.
It's not necessary that it run on 32bit, it's just a curiosity. Unfortunately I don't have another old pc here to test, I should have to go to my parents (200km from here).
jazzbiker:
Hi, Dr.FrankenHouse!
I am writing this post from the very old ASUS netbook with 32-bit Atom, Z520, booting from USB flash drive, cooked according to Juanito recipe. Here i load using "core" entry. And the same stick i boot 64-bit laptop in both modes - core64 and corepure64.
So Juanito's installation instructions are perfect and You can rely on them absolutely.
Maybe You missed, that on the 32-bit hardware You can select only "core" entry? Be carefull with UUID's defined.
Good luck!
Rich:
Hi Dr.FrankenHouse
--- Quote from: Dr.FrankenHouse on February 26, 2020, 01:21:35 PM --- ... I tried to boot my netbook (cpu atom 32bit) ...
--- End quote ---
Are you sure? Atoms came in both 32 and 64 bit. I have an old ASUS T100-CHI tablet that has a 64 bit Atom but 32 bit UEFI firmware.
I also found out this tablet would not boot a 32 bit kernel so I used vmLinuz64 with Core64 (not CorePure64) so I could still run
32 bit applications since this tablet only has 2 Gig of RAM.
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