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initscripts: populate-volatile: suppress read-only-rootfs warnings 

rm: can't remove '/etc/resolv.conf': Read-only file system
ln: /etc/resolv.conf: File exists

/etc/default/volatiles contains an entry:
l root root 0644 /etc/resolv.conf /var/run/resolv.conf

which causes populate-volatile.sh to execute the following in link_file():
  if [ -L \"$2\" ]; then
    [ \"\$(readlink -f \"$2\")\" != \"\$(readlink -f \"$1\")\" ] && { rm -f \"$2\"; ln -sf \"$1\" \"$2\"; };
  elif [ -d \"$2\" ]; then
    ...

At the time the image is created, /etc/resolv.conf is already a
symlink to /var/run/resolv.conf, but at boot time when
populate-volatiles.sh is run, /var/run/resolv.conf doesn't
exist, causing it to try to rm -f and ln -sf which of course
fails due to the read-only filesystem.

[YOCTO #10814]

(From OE-Core rev: 765ee275f5499254b1f09e394c757072bea5f459)

Signed-off-by: André Draszik <adraszik@tycoint.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
André Draszik 2016-12-20 09:02:40 +00:00 committed by Richard Purdie
parent 4f89e47d35
commit d8c62f19da
1 changed files with 1 additions and 1 deletions
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2
meta/recipes-core/initscripts/initscripts-1.0/populate-volatile.sh
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@ -70,7 +70,7 @@ mk_dir() {
link_file() {
EXEC="
if [ -L \"$2\" ]; then
[ \"\$(readlink -f \"$2\")\" != \"\$(readlink -f \"$1\")\" ] && { rm -f \"$2\"; ln -sf \"$1\" \"$2\"; };
[ \"\$(readlink -f \"$2\")\" != \"$1\" ] && { rm -f \"$2\"; ln -sf \"$1\" \"$2\"; };
elif [ -d \"$2\" ]; then
if awk '\$2 == \"$2\" {exit 1}' /proc/mounts; then
cp -a $2/* $1 2>/dev/null;