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modify a predefined partition table on Solaris

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# 1  
Old 03-15-2007
modify a predefined partition table on Solaris
I want to modify a predefined partition on Solaris. This predefined partion has 51 GB. I want to partition it as two partition. One is 5G, another one is about
46 GB. I want to use these commands:

#format
specify disk

#partition
# modify
The system told me that ' Cannot modify disk partitions while it has mounted partitions' . What is this mean? How can I go through this? umount file system from current mount point. Please advise. Thanks.
# 2  
Old 03-15-2007
if you already use the partitions, it won't be possible.... you can not decrease the size of UFS, it can only grow...

gP
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