[Bug 1790860] Re: ethernet driver update issue

[Colin Watson]

In my opinion, this was a bug in the e1000e installation scripts.  "man"
intentionally doesn't support redirections inside its -P argument like
this; implementing that without going via a shell (which is a practice
that routinely leads to security bugs, so we avoid it) would add a
reasonably significant amount of complexity, and it isn't worth it here
because just redirecting the output of "man" to /dev/null would do just
as well.

Furthermore, this installation script seems to have been written for a
much older "man" implementation, because it appears to be deliberately
trying to create a plain-text cat page, which is an obsolescent
practice.

Fortunately, it seems that the maintainers of the e1000e driver noticed
this, because they fixed their scripts in version 3.6.0, released on
2019-09-22.  As such, I think you should just be able to update to a
newer version of the driver and this should work better.

** Changed in: man-db (Ubuntu)
       Status: Confirmed => Won't Fix

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https://bugs.launchpad.net/bugs/1790860

Title:
  ethernet driver update issue

Status in man-db package in Ubuntu:
  Won't Fix

Bug description:
  I am using xbuntu 18.04 with kernel 4.16.8-rt2
  when I am trying to update the driver and following issue appeared.

  coe at FLSCCM:~/Desktop/e1000e/e1000e-3.4.2.1/src$ sudo make install
  [sudo]
  password for coe:

  make -C /lib/modules/4.16.8-rt2/build CC=gcc
  SUBDIRS=/home/coe/Desktop/e1000e/e1000e-3.4.2.1/src modules

  make[1]: Entering directory '/opt/kernel/linux-4.16.8'

  Building modules, stage 2.
    M
  ODPOST 1 modules
  make[1]: Leaving directory '/opt/kernel/linux-4.16.8'

  # remove all old versions of the driver

  find /lib/modules/4.16.8-rt2 -name e1000e.ko -exec rm -f {} \; || true

  find /lib/modules/4.16.8-rt2 -name e1000e.ko.gz -exec rm -f {} \; ||
  true

  install -D -m 644 e1000e.ko
  /lib/modules/4.16.8-rt2/updates/drivers/net/ethernet/intel/e1000e/e1000e.ko

  /sbin/depmod -a 4.16.8-rt2 || true

  install -D -m 644 e1000e.7.gz /usr/share/man/man7/e1000e.7.gz

  man -c -P'cat > /dev/null' e1000e || true

  man: command exited with status 1: (cd /usr/share/man && /usr/lib/man-
  db/zsoelim) | (cd /usr/share/man && /usr/lib/man-db/manconv -f
  UTF-8:ISO-8859-1 -t UTF-8//IGNORE) | (cd /usr/share/man && preconv -e
  UTF-8) | (cd /usr/share/man && tbl) | (cd /usr/share/man && nroff
  -mandoc -rLL=264n -rLT=264n -Tutf8) | gzip -c7

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