Public bug reported:

I tried to boot the 20.04 nightly image (focal-desktop-amd64.iso
2020-04-05 11:06 ) as well as an older one (a week ago) on my Dell XPS
15 9560, and I got the same error message each time.

The live system performs a filesystem check while showing a progress bar
on a screen with dell and ubuntu logo, then the linux console shows with
following error:

sd 2:0:0:0: [sda] tag#0 access beyond end of device
blk_update_request: I/O error, dev sda, sector 30529408 op 0x0:(READ) flags 
0x80700 phys_seg 1 prio class 0
sd 2:0:0:0: [sda] tag#0 access beyond end of device
blk_update_request: I/O error, dev sda, sector 30529408 op 0x0:(READ) flags 0x0 
phys_seg 1 prio class 0
Buffer I/O error on dev sda, logical block 3816176 async page read

This happens with two different 16GB usb sticks on the Dell XPS 15. They
both worked fine on an old samsung netbook.

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1871917

Title:
  Unable to boot 20.04 installer on Dell XPS 15 9560

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