[ltp] Booting from thumbdrive...

Zed zed at zed.net.nz
Wed Aug 26 02:45:53 CEST 2020

cr <cr at orcon.net.nz> wrote:

> On Thursday, 20 August 2020, 7:55:07 am AWST, Zed <zed at zed.net.nz> wrote:
> >  The help of members is sought to solve a problem regarding booting
> > from a usb thumbdrive, please.
> > 
> > Using Linux Mint v20.0 on a Lenovo Thinkpad T450s
> > 
> > My T450s does not have a DVD/CD drive, so I wrote an ISO for Gecko Linux
> > to bootable USB thumb drive.  The write was successful.
> > 
> > However, when I cam to choose which media to boot from on reboot (and on
> > a complete close down and restart), the  USB thumb drive was not shown.
> > 
> > Cannot find anything in BIOS which requires changing.
> > 
> > Zed
> Zed, don't know if this helps but when I put Debian on my L440 I first had
> to do some futzing around in Windows10 to prize its cold dead clutch (aka
> Secure Boot) off the boot order before I could get into the BIOS. I can't
> recall if it hid USB from the BIOS options.
> You may need to change the boot from UEFI to Legacy - I've just looked at
> my L440 BIOS and I see it's now set as: Startup:
>     UEFI/Legacy Boot  -  [Both]
>         -- UEFI/Legacy Boot Priority	[Legacy First]

The laptop has Secure boot disabled and set to boot in Legacy mode.  Never
had a problem with it.

> There's a Lenovo page on USB boot sequence here:
> https://support.lenovo.com/nz/en/solutions/ht118361 

Yes, I've seen this page but unfortunnately it deals only with Windows :-(
and a Microsoft page

> on how to disable Secure Boot here:

Already disabled.

Although I hope to solve the puzzle, it isn't a dealbreaker ansa shortly
after buying the T4502 I got hold of an external DVD drive and have
successfully burnt DVDs and installed operating systems from it to the


More information about the Linux-Thinkpad mailing list