base-files_13.6_arm64.deb and wiki.debian.org/UsrMerge

Code:

$ sudo apt upgrade

[...]

Upgrading: 397, Installing: 24, Removing: 0, Not Upgrading: 0

Continue? [Y/n] y

Extracting templates from packages: 100%

Preconfiguring packages ...

cat: '/sys/bus/usb/devices/*:*/bInterfaceClass': No such file or directory

cat: '/sys/bus/usb/devices/*:*/bInterfaceSubClass': No such file or directory

cat: '/sys/bus/usb/devices/*:*/bInterfaceProtocol': No such file or directory

(Reading database ... 134526 files and directories currently installed.)

Preparing to unpack .../base-files_13.6_arm64.deb ...





******************************************************************************

*

* The base-files package cannot be installed because

* /lib64 is a symbolic link and not pointing at usr/lib64 exactly.

*

* This is an unexpected situation. Cannot proceed with the upgrade.

*

* For more information please read https://wiki.debian.org/UsrMerge.

*

******************************************************************************





dpkg: error processing archive /var/cache/apt/archives/base-files_13.6_arm64.deb (--unpack):

 new base-files package pre-installation script subprocess returned error exit status 1

Errors were encountered while processing:

 /var/cache/apt/archives/base-files_13.6_arm64.deb

Error: Sub-process /usr/bin/dpkg returned an error code (1)

Code:

user@pinenote:~$ ls '/sys/bus/usb/devices/*:*/bInterfaceClass' 

ls: cannot access '/sys/bus/usb/devices/*:*/bInterfaceClass': No such file or directory



user@pinenote:~$ ls '/sys/bus/usb/'

devices  drivers  drivers_autoprobe  drivers_probe  uevent



user@pinenote:~$ ls /sys/bus/usb/devices/



user@pinenote:~$ ls /sys/bus/usb/drivers 

hub  usb  usbfs  usbhid

Code:

user@pinenote:~$ dpkg --contents /var/cache/apt/archives/base-files_13.6_arm64.deb

#!/bin/sh

set -e



if [ "$1" = "install" ] || [ "$1" = "upgrade" ]; then

  msg=

  for d in bin lib lib32 lib64 libo32 libx32 sbin; do

    if [ -L "$DPKG_ROOT/$d" ]; then

      target=$(readlink "$DPKG_ROOT/$d")

      if [ "$target" != "usr/$d" ]; then

        if [ "$d" = lib64 ] && [ "$target" = "usr/lib/aarch64-linux-gnu" ]; then

          # Work around https://github.com/systemd/systemd/issues/33919

          echo "Fixing bad /$d symbolic link created by systemd-nspawn."

          if [ -d "$DPKG_ROOT/usr/$d" ]; then

            ln -sf "usr/$d" "$DPKG_ROOT/$d"

          else

            rm "$DPKG_ROOT/$d"

          fi

        else

          msg="/$d is a symbolic link and not pointing at usr/$d exactly"

        fi

      elif [ ! -d "$DPKG_ROOT/usr/$d" ]; then

        msg="/$d is a dangling symbolic link"

      fi

      msg2="This is an unexpected situation. Cannot proceed with the upgrade"

    elif [ -d "$DPKG_ROOT/$d" ]; then

      msg="/$d is a directory, but should be a symbolic link"

      msg2="Please install the usrmerge package to convert this system to merged-/usr"

    fi

    if [ -n "$msg" ]; then

      cat <<EOF





******************************************************************************

*

* The base-files package cannot be installed because

* $msg.

*

* $msg2.

*

* For more information please read https://wiki.debian.org/UsrMerge.

*

******************************************************************************





EOF

      exit 1

    fi

  done