Arch Linux

twelveeighty

Member

From: Alberta, Canada

Registered: 2011-09-04

Posts: 1,225

[SOLVED] Symbolic link error in boot sequence

Either this got introduced with the latest kernel upgrade, or I just happened to catch it now during the boot cycle. At the very end, I get the following error, also present in the /var/log/boot file:

Wed Mar 28 13:23:55 2012: ln: failed to create symbolic link `/dev/cdrom': File exists

Does anyone know which service/process tries to create a symbolic link for /dev/cdrom...?

To make matters more interesting - there is a /dev/cdrom lin, dated at the time of reboot, so something must have created it already. But it's slightly different than the links for /dev/dvd and /dev/cdrw:

[root@abc dev]# ls -l
total 0
...
lrwxrwxrwx  1 root root             3 Mar 28 13:23 cdrom -> sr0
lrwxrwxrwx  1 root root             8 Mar 28 13:23 cdrw -> /dev/sr0
...
lrwxrwxrwx  1 root root             8 Mar 28 13:23 dvd -> /dev/sr0
lrwxrwxrwx  1 root root             8 Mar 28 13:23 dvdrw -> /dev/sr0

Any ideas?

Last edited by twelveeighty (2012-03-30 17:09:13)

Gcool

Member

Registered: 2011-08-16

Posts: 1,456

Re: [SOLVED] Symbolic link error in boot sequence

You probably have a symlink creation specified in /etc/rc.local. This is no longer needed for /dev/cdrom.

---

Burninate!

twelveeighty

Member

From: Alberta, Canada

Registered: 2011-09-04

Posts: 1,225

Re: [SOLVED] Symbolic link error in boot sequence

Yes! You are right. Now, this sounds so familiar. I vaguely remember doing this when I originally installed Arch on this laptop, but I must have done it as part of the "beginners guide" procedure. I guess this explains it:

https://wiki.archlinux.org/index.php?ti … did=168068

Now, I take it from this that I safely remove ALL the symlinks from my rc.local?

rc.local:

ln -s /dev/sr0 /dev/cdrom
ln -s /dev/sr0 /dev/cdrw
ln -s /dev/sr0 /dev/dvd
ln -s /dev/sr0 /dev/dvdrw

Gcool

Member

Registered: 2011-08-16

Posts: 1,456

Re: [SOLVED] Symbolic link error in boot sequence

You can safely remove the "ln -s /dev/sr0 /dev/cdrom" line. The /dev/cdrom symlink is automatically created during boot now.

The symlinks for cdrw, dvd and dvdrw aren't however. So if you have a general use for those; you can safely leave them in there.

---

Burninate!