by Philip Morga » Sat, 13 Feb 1999 04:00:00
I'm having a problem with NetBSD1.3 running on an AlphaStation 200. I have
two external SCSI hard drives (attached to the built-in controller) that are
refusing to mount. mount -A gives the following:
mount_ffs: /dev/sd1c on /drive1: Device busy
mount_ffs: /dev/sd2c on /drive2: Device busy
Any ideas why this might be happening and how to fix it?
Thanks,
--Philip.
1. mount -o remount,ro cause error "device is busy"
hi, all;
I have upgraded my kernel to version 2.4.
And i have tested 2.4.16 and 2.4.18. Both of these
two version have the same problem when system reboot.
"/: device is busy";
in shutdown script:
umount -a
mount -n -o ro,remount /
these two line result error: device is busy.
I switch to init 1, and all user process go away.
except the following:
root 1 0.1 0.7 1056 484 ? S 15:46 0:04 init [S]
root 2 0.0 0.0 0 0 ? SW 15:46 0:00 [keventd]
root 3 0.0 0.0 0 0 ? SWN 15:46 0:00 [ksoftirqd_CPU0]
root 4 0.0 0.0 0 0 ? SW 15:46 0:00 [kswapd]
root 5 0.0 0.0 0 0 ? SW 15:46 0:00 [bdflush]
root 6 0.0 0.0 0 0 ? SW 15:46 0:00 [kupdated]
root 1042 0.0 0.7 1056 484 tty1 S 16:33 0:00 init [S]
root 1043 0.6 1.5 1840 1004 tty1 S 16:33 0:00 /bin/sh
root 1045 0.0 1.0 2260 680 tty1 R 16:33 0:00 ps aux
then i try
mount -o ro,remount /
error occurs: device is busy.
and i try
mount -o ro,remount /usr
(another partition)
also error occurs: device is busy.
but when i try umount /usr,
it works.
certainly, there is error
device is busy for command umount /.
How can i resolve this problem?
Regards;
Michael
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