Re: "busy" disk trouble
On Sat, Sep 30, 2006 at 02:32:52AM +0200, ronald wrote:
Michal Jaegermann wrote:
>>>??? Neither fuser, nor lsof, nor searches for anything else reveal
>>>why /dev/sdb1 could be "in use".
my disk was not accessible caused by a membership in a raid system month
ago, but still containing a label/signature from that.
i could fdisk the drive, but couldn't not swap on it or delete/create
partitions/file systems on it.
You were right that problems were caused by dmraid. This is
a "recycled" disk and I was not even really aware that in the past
it was used in RAID. It turns out that mkinitrd adds such
disk to dm map and after a boot every partition on such disk
either "does not exist", even if it is there, or is "busy".
All of that without a trace of a hint anywhere why there is a
problem. Talk about the least surprise!
It is not enough to remove that signature with 'dmraid -r -E ...'
from such disk. One has to rebuild mkinitrd as well before
that disk becomes accesible. Does some piece of documentation
even mentions such things? I am not aware so far.
Michal