[Bug 1931013] Re: errno5 installing with usb flash

[Paul White]

>From the above:

  CasperMD5CheckMismatches: ./casper/filesystem.squashfs
  CasperMD5CheckResult: fail

It's possible you have a bad write to your USB flash drive. You should
try re-writing it and/or re-downloading the ISO image.

** Changed in: ubiquity (Ubuntu)
       Status: New => Incomplete

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Title:
  errno5 installing with usb flash

Status in ubiquity package in Ubuntu:
  Incomplete

Bug description:
  i got the Ubuntu 20.04.2.0 LTS on ubuntu download website, got it on a usb flash drive with rufus as per advised on :
  https://ubuntu.com/tutorials/create-a-usb-stick-on-windows#2-requirements

  and i get that errno 5 error message

  the installer encountered an error  copying files to the hard disk:
  something to do with disk cleaning up, or running in cooler place, or burn the cd at lower speed... but im on a flash drive ! i dont burn anything, my computer is idle and not running hot... 
  pc is  about 4 years old, 8gb ram, was wiped and rebooted a week ago and all updated so no cobwebs in there.
   this is the second time im trying... dunno what to do, im not IT savvy?!?!

  ProblemType: Bug
  DistroRelease: Ubuntu 20.04
  Package: ubiquity 20.04.15.10
  ProcVersionSignature: Ubuntu 5.8.0-43.49~20.04.1-generic 5.8.18
  Uname: Linux 5.8.0-43-generic x86_64
  NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
  ApportVersion: 2.20.11-0ubuntu27.16
  Architecture: amd64
  CasperMD5CheckMismatches: ./casper/filesystem.squashfs
  CasperMD5CheckResult: fail
  CasperVersion: 1.445.1
  CurrentDesktop: ubuntu:GNOME
  Date: Sun Jun  6 12:34:28 2021
  HookError_source_ubiquity:
   Traceback (most recent call last):
     File "/usr/lib/python3/dist-packages/apport/report.py", line 225, in _run_hook
       exec(compile(fd.read(), hook, 'exec'), symb)
   OSError: [Errno 5] Input/output error
  LiveMediaBuild: Ubuntu 20.04.2.0 LTS "Focal Fossa" - Release amd64 (20210209.1)
  ProcEnviron:
   LANGUAGE=en_GB.UTF-8
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_GB.UTF-8
   LC_NUMERIC=C.UTF-8
  SourcePackage: ubiquity
  UpgradeStatus: No upgrade log present (probably fresh install)

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