[Pkg-sysvinit-devel] Bug#463175: initscripts: root filesystem is busy when it is un-mounted when doing shutdown

[Arthur Marsh]

Petter Reinholdtsen wrote, on 31/01/08 08:11:
> [Arthur Marsh]
>> Any suggestions for narrowing down the problem welcome.
> 
> Adding 'fuser -vm /; sleep 60' to the umountroot script to figure out
> what process is blocking the umount.

After adding the above lines I haven't had problems with root being busy.

> 
> No idea what could cause this issue.
> 
> Happy hacking,

I did some more experimenting... the problem is definitely with 2.6.24
kernels and not with 2.6.23 kernels, on start-up something is different
between the message:

SCSI system initialized

and udev finishing, particularly when

/usr/share/initramfs-tools/scripts/init-bottom/udev

is called.

Often with the 2.6.24 kernel I get a readlink error on bootup, and I've
seen udev complain about not finding script files.

I don't see the errors in dmesg output or with the bootlog output, so 
could you suggest how to further identify the problem?

Uncommenting

debug=echo

in /etc/init.d/rc resulted in a system that wouldn't shut down or boot 
up correctly )-:.

Regards,

Arthur.