fedora 20: shutdown freezes

yep, after solving my start-up issue, i got a shutdown issue. shutdown button and terminal commands from my gnome freeze my box. only a force shutdown via the power button works. when i started searching the internet for solution, i found a great amount of bug reports and call for help, earliest on fedora 16, which has no response for solution. i read somewhere that it could be a kernel issue, though, i doubt it because it has been experienced even in old fedoras. what solved my issue? a kernel update via yum.

# yum update kernel

somehow it fixed something. so i'll stop playing around with my box, for now. i can wait till there's a new kernel i can update to, in case i face another shutdown issue.

fedora: compiling results to build: no such file or directory

got this while compiling a driver on fedora 19
make: *** /lib/modules/3.9.5-301.fc19.i686/build: No such file or directory.  Stop.


checked the build folder called
# ls /lib/modules/3.9.5-301.fc19.i686/build
lrwxrwxrwx. 1 root root 36 Jun 28 01:12 /lib/modules/3.9.5-301.fc19.i686/build -> /usr/src/kernels/3.9.5-301.fc19.i686


checked the link which wasn't pointing to anything
# ll /usr/src/kernels/3.9.5-301.fc19.i686
ls: cannot access /usr/src/kernels/3.9.5-301.fc19.i686: No such file or directory


checked my kernel rpms installed and seems that my kernel is different from my kernel-headers.

tried a lot of things, but in the end, a fix for kernel directory from sergio worked:

# yum install kernel-headers-$(uname -r) kernel-devel-$(uname -r) dkm


(src: http://www.if-not-true-then-false.com/2010/install-virtualbox-with-yum-on-fedora-centos-red-hat-rhel/)