[Bug 1816846] Re: segfault in libc-2.23.so netinstall installation pxe

[Nathaniel Priddy]

I'm currently using Foreman to provision machines. I've updated the
image to pull from xenial-updates, but now the installer is unable to
install the base system (the latest linux-headers-4.4.0-143). It's
specifically unable to find the linux-headers-signed-generic. I did not
have this issue before using the xenial-updates? Just pointing it to
us.archive.ubuntu.com/ubuntu. I'm not sure of where to get help with
this, but this is me specifically trying to use the xenial-updates
netboot install since the bug has been introduced with just xenial. Any
help is greatly appreciated.

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https://bugs.launchpad.net/bugs/1816846

Title:
  segfault in libc-2.23.so netinstall installation pxe

Status in glibc package in Ubuntu:
  Confirmed

Bug description:
  I have implemented a PXE server in Virtualbox 6.0.4 to perform
  automatic installations of different versions of Linux (particularly
  Ubuntu).

  Until a few hours ago I could perform the automatic installation of
  Ubuntu Server 16.04.5 on a VM, but after updating libc6-udeb
  (2.23-0ubuntu11), I get the following error:

  kernel: [  186.927962] sh[8177]: segfault at 18 ip 00007fc21ff438df sp
  00007ffe594a5e80 error 4 in libc-2.23.so[7fc21ff23000+1c0000]

  I don't know how to fetch the installation log, so I attach a
  screenshot.

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