Re: Questions : disk partition re-reading

From: Remi Colinet
Date: Sun Apr 18 2004 - 10:40:33 EST


Christian Kröner wrote:

On Sunday 18 April 2004 15:24, you wrote:


Hi,

I have 2 questions about disk partitioning under linux 2.6.x :

1/ Is it possible to alter a disk partition of a used disk and beeing
able to use the modified partition without having to reboot the box?

2/ Is it possible to delete a disk partition without having the
partition numbers changed?

My box is an AMD 2500+/Asus board with FC1 / 2.6.5.

Do I need to upgrade fdisk or use an other utility? Or do I need to
apply a kernel patch?

Regards,
Remi
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All this is possible...
Use fdisk or cfdisk for editing the partition table and, if youre root partition doesnt reside on the disk, simply use hdparm to let the kernel reread the partition table. You can start formatting the new partitions right after that...
cheers, christian.




Christian,

I have modified a partition with fdisk.
Then, I have tried to update the in memory partitioning informations, but I have the following error message :

# hdparm -z /dev/hdb

/dev/hdb:
BLKRRPART failed : Device or resource busy

An other partition is used on the same disk.

Regards,
Remi



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