Bug 7374 - cann't unmount / cleanly during the rebooting process
cann't unmount / cleanly during the rebooting process
Product: Red Hat Linux
Classification: Retired
Component: libc (Show other bugs)
i386 Linux
medium Severity high
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Assigned To: Cristian Gafton
Depends On:
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Reported: 1999-11-27 06:12 EST by karlsl
Modified: 2008-05-01 11:37 EDT (History)
1 user (show)

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Fixed In Version:
Doc Type: Bug Fix
Doc Text:
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Clone Of:
Last Closed: 2000-01-06 16:09:08 EST
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RHEL 7.3 requirements from Atomic Host:
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Description karlsl 1999-11-27 06:12:59 EST
I see this message, "unmount: / is busy" whenever I try to reboot the
Comment 1 Thomas Hansen 1999-12-23 05:55:59 EST
Hi RedHat,

I have exactly the same problem, but only on my IBM computer's with normal scsi
disks. I also have an IBM with serveraid installed and the problem is not there
at all. On one Dell server is not there either.
This is a transcript of an reboot:
[root@lxas1 /root]# reboot
Stopping keytable
Shutting down X Font Server:
Stopping gpm
Shutting down PCNFSD daemon:
Shutting down sendmail:
Shutting down SMB services:
Shutting down NMB services:
Shutting down named:
Stopping INET services:
Stopping at daemon:
Stopping cron daemon:
Stopping lpd
Unmounting NFS filesystems
Saving random seed
Stopping portmap services:
Shutting down interface eth0
Disabling IPv4 automatic defragmentation
Shutting down kernel logger:
Shutting down system logger:]
Starting killall rpc.statd forgot to set AF_INET in udp sendmsg. Fix it!

Sending all processes the TERM signal
Sending all procmd: recovery thread got woken up ...
esses the KILL smd: recovery thread finished ...
ignal.. mdrecoveryd(6) flushing signals.

Turning off swap
Turning off accounting
Unmounting proc file system
mount: / is busy
Error: /proc must be mounted
  To mount /proc at boot you need an /etc/fstab line like:
      /proc   /proc   proc    defaults
  In the meantime, mount /proc /proc -t proc
mount: / is busy
Please stand by while rebooting the system...
stopping all md devices.

Restarting system.

LILO boot:
Loading linux..................
INIT: version 2.77 booting
			Welcome to _[1;31mRed Hat_[0;39m Linux
		Press 'I' to enter interactive startup.
Mounting proc filesystem
Setting clock : Thu Dec 23 11:44:36 CET 1999
Loading default keymap
Activating swap partitions
Setting hostname lxas1
Checking root filesystem
/dev/sda1 was not cleanly unmounted, check forced.

Comment 2 Cristian Gafton 2000-01-06 16:09:59 EST
You must have modfied some of your initscripts that cause /proc to be unmounted
prematurely and in turn the final shutdown steps are not performed cleanely.

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