rootfs-postcommands.bbclass: Filter out dangling symlinks in ssh_allow_empty_password()
In images built with pam in DISTRO_FEATURES, we end up with dangling symlinks
if su is not packaged into image
$ ls /mnt/a/oe/build/tmp/work/raspberrypi3-bec-linux-gnueabi/core-image-minimal/1.0-r0/rootfs/etc/pam.d/su-l -l
lrwxrwxrwx 1 kraj users 2 Aug 9 07:56 /mnt/a/oe/build/tmp/work/raspberrypi3-bec-linux-gnueabi/core-image-minimal/1.0-r0/rootfs/etc/pam.d/su-l -> su
This causes image do_rootfs to fail
| sed: can't read /mnt/a/oe/build/tmp/work/raspberrypi3-bec-linux-gnueabi/core-image-minimal/1.0-r0/rootfs/etc/pam.d/s
u-l: No such file or directory
| WARNING: /mnt/a/oe/build/tmp/work/raspberrypi3-bec-linux-gnueabi/core-image-minimal/1.0-r0/temp/run.ssh_allow_empty_
password.19238:1 exit 2 from 'sed -i 's/nullok_secure/nullok/' /mnt/a/oe/build/tmp/work/raspberrypi3-bec-linux-gnueabi
/core-image-minimal/1.0-r0/rootfs/etc/pam.d/*'
Therefore we need to filter out dangling symlinks before sed'ing
things out
Signed-off-by: Khem Raj <raj.khem@gmail.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
