Package: initramfs-tools-core
Version: 0.130
Severity: normal
Tags: patch

In stable/stretch if there are no interfaces yet and ip-config doesn't
configure anything we get a panic.

I am using this patch in production with good results, it waits for
network interfaces to show and avoids sourcing an inexistent file,
avoiding the panic.

This happens with a USB network card but it could happen with other
cards too.

Maybe it is too much for stable/stretch, but unstable/sid version
0.132 seems to have the same problem so can be applied there.

Here it is, hope you find it useful:

--- functions.old       2017-03-06 19:42:55.000000000 -0300
+++ functions   2018-10-23 19:20:26.726994846 -0300
@@ -182,6 +182,15 @@
 
 configure_networking()
 {
+       for device_wait_try in 5 4 3 2 1; do
+               for device in /sys/class/net/*; do
+                       [ $device = /sys/class/net/lo ] && continue
+                       break 2
+               done
+               sleep 1
+       done
+       [ $device_wait_try = 1 ] && log_warning_msg "No network device found"
+
        if [ -n "${BOOTIF}" ]; then
                # pxelinux sets BOOTIF to a value based on the mac address of 
the
                # network card used to PXE boot, so use this value for DEVICE 
rather
@@ -269,10 +278,12 @@
        if [ -n "${DEVICE}" ]; then
                # source specific bootdevice
                . /run/net-${DEVICE}.conf
-       else
+       elif [ -e /run/net-*.conf ]; then
                # source any interface...
                # ipconfig should have quit after first response
                . /run/net-*.conf
+       else
+               log_warning_msg "Network configuration failed, maybe 
driver/module not loaded/initialized yet or cable/network problem"
        fi
 }


Thanks a lot!!!


-- System Information:
Debian Release: 9.5
  APT prefers stable-updates
  APT policy: (500, 'stable-updates'), (500, 'stable')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 4.9.0-8-amd64 (SMP w/2 CPU cores)
Locale: LANG=es_UY.UTF-8, LC_CTYPE=es_UY.UTF-8 (charmap=UTF-8), 
LANGUAGE=es_UY.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages initramfs-tools-core depends on:
ii  cpio         2.11+dfsg-6
ii  klibc-utils  2.0.4-9
ii  kmod         23-2
ii  udev         232-25+deb9u4

Versions of packages initramfs-tools-core recommends:
ii  busybox  1:1.22.0-19+b3

Versions of packages initramfs-tools-core suggests:
ii  bash-completion  1:2.1-4.3

-- Configuration Files:
/etc/initramfs-tools/initramfs.conf changed:
MODULES=netboot
BUSYBOX=auto
KEYMAP=n
COMPRESS=xz
DEVICE=
NFSROOT=auto
BOOT=nfs


-- no debconf information

-- debsums errors found:
debsums: changed file /usr/share/initramfs-tools/scripts/functions (from 
initramfs-tools-core package)

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