Re: Grub saved my Laptop, and made it usable. so i wanted to say thanks to everybody that worked on it.

[Vladimir 'phcoder' Serbinenko]

Thank you a lot for this feedback. For LiveUSB: put original iso as a
file then install GRUB on the USB and put in boot/grub/grub.cfg:
memmap ...

menuentry "My Live USB" {
  iso_path=<My ISO>
  export iso_path
  loopback loop $iso_path
  root=loop
  configfile /boog/grub/loopback.cfg
}

The config is of the top of my head, might need some corrections. If
so please let me know and post them back for others

On Sun, Nov 6, 2022 at 9:58 PM James Wabi <imitomx1978@gmail.com> wrote:
>
> Hi.
>
> Thanks you all developers that workd on Grub. With grub and the Badram and 
> Memmap command i was able to fix my Laptop with bad/broken soldered ram 
> memory in the motherboard.
> Actually "memmap" was the one that worked, which reserved specific memory 
> address making the OS bootable and stable.
>
> The catch was to install linux on a good working PC and edit the cfg 
> /etc/default/grub  to include some specific memmap lines for the memory 
> addresses that needed to be blocked, then transfer the hard drive to the 
> broken memory laptop. This fixed everything. and the laptop has been running 
> perfectly.
>
> I have not found a way, and there is no information online, if this is 
> possible to do with a LIVE linux USB flash drive. As soon as you boot from a 
> live USB flashdrive, the machine starts to use bad broken soldered memory. 
> And i wish there was a way to edit the live usb boot flash drive so it has 
> edited GRUB memmap commands  in order to boot with the USB live linux and 
> blocking that memory address.
>
> I have read i should prepare the live-usb flashdrive with rufus, but the 
> files are completely different from what you do with a linux that is already 
> installed on a hard drive  and changing /etc/default/grub cfg
>
> If this can be done in the future it would really help, to most of us that 
> have bad soldered memory on the motherboard. Would be nice to live boot a 
> linux and block some memory addresses.
>
> thanks!
>
>
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-- 
Regards
Vladimir 'phcoder' Serbinenko