On Mar 12, 2014, at 4:36 AM, takCoder <tak.offic...@gmail.com> wrote:

> systemd-readahead[416]:  Failed to open pack file: Read-only system

I'm not sure the problem is Bluetooth at all. Systemd has a way to optimize 
boot times with its own read ahead mechanism, and puts the hint for what to 
read ahead in (I'm guessing) this pack file. I don't know why the file system 
is read only at this point though, so that seems to be the real problem.

I'd start out by booting single user mode (rescue.target in systemd 
vernacular). Do this by pressing e at the grub menu to edit the entry, find the 
linux line, and add to the end of it the word single. Use the mount command to 
see that all relevant file systems are in fact mounted rw and not ro. If / or 
/var is ro, then you are slightly better off booting from alternate media like 
a live desktop image, and running fsck on the problematic volume rather than 
running it on a mounted ro volume. But if you do run it on the ro volume, 
immediately reboot after repairs by using reboot -f.

Also while you're at it, use df -h to see if for some reason a volume is full.

If everything file system wise is OK, then you'll need to add some other boot 
parameters to try to track this down.

Remove both the quiet rhgb options, and add systemd.log_level=debug 
systemd.log_target=console options. This will produce rather verbose messages 
on the console but should better pinpoint where the problem is.

It is also possible to just disable the readahead. If you successfully boot 
single user with a rw mounted file system:

systemctl disable systemd-readahead-collect.service 
systemd-readahead-drop.service systemd-readahead-replay.service

It's unlikely that it makes much of a difference performance wise anyway. And 
it's probably not worth spending much time troubleshooting and filing bugs 
since Fedora 18 is EOL anyway.


Chris Murphy

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