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i've seen all the posts about using a USB bootable and the boot repair disk utility. my twist is that my pc i'm using for a server is too old to support booting from USB. And when i try 'try ubuntu now' from a v20.4 lts install disk, apparently it doesn't have support for the onboard video (too old?) as i get a purple screen with many, offset dashes on it. also, the boot repair utility won't let me create a cd-rom on my windows computer.

can anyone provide instructions or a prebuilt ISO with all the necessary tools to fix this?

thanks john

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I had the same error: "symbol `grub_calloc' not found" followed by the dreaded grub_rescue prompt. I've spent hours trying various commands to no avail. At the end I decided to use the boot-repair disk at sourceforge.net. It took all of a 4 minutes to restore grub.

Orhank
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boot-repair-disk should be burned to a DVD not a cd.

Also yes, a computer that doesn't have USB support... is it a pentium 4?

You should not be installing Ubuntu to a P4 computer, most next gen the core2 duos are probably too old.

Try lubuntu, otherwise settle for puppy linux, maybe Kaos.

If you do have a core2 duo or higher, I would be that USB booting is off from the bios.