* On Fri, Nov 10, 2006 at 07:01:04AM +1100, Alexander Samad wrote:
> On Thu, Nov 09, 2006 at 05:41:58PM +1100, Scott Ragen wrote:
> > [EMAIL PROTECTED] wrote on 09/11/2006 03:08:46 PM:
> > 
> > > Is there a way of creating partitions using fdisk, and not having to
> > > reboot before creating filesystems on the new partitions? ie getting the
> > > kernel to be aware of the new partions.
> > > 
> > Does it have to be fdisk?
> > cfdisk is recommended over fdisk (at least on my dist), and from the man:
> > W      Write  partition table to disk (must enter an upper case W).  Since 
> > this might destroy data on the disk, you must either confirm or deny the 
> > write by entering `yes' or `no'.  If you enter `yes', cfdisk will write 
> > the partition table to disk and the tell the kernel to  re-read  the 
> > partition  table  from the disk.  The re-reading of the partition table 
> > works is most cases, but I have seen it fail.  Don't panic.  It will be 
> > correct after you reboot the system.  In all cases, I still recommend 
> > rebooting the system--just to be safe.
> > 
> > If you need to use fdisk, I guess you could find out what cfdisk does to 
> > re-read the partition tables and use that.
> 
> My understanding is that fdisk cfdisk and sfdisk (?!), all write the partition
>  table information, and then send a sysctl to the kernel to re read the
> parition information.  The kernal will do that for HD's that don't have
> loaded partitions.  So if there is a partition on that drive that is
> being used by the kernel (ie root, swap ....) it will not reread the
> parititon information for that hard drive until reboot.

(Hi Alex!).

re the cfdisk question, I'd prefer to use it but often I'm using
Suse/RH; I'd prefer not to install it. 

BUUUUUTTTT... I found the answer to my own question - partprobe, which
is installed with parted [1] - thanks for your help :-)

[1] 
http://www.cyberciti.biz/tips/re-read-the-partition-table-without-rebooting-linux-system.html

--
Sonia Hamilton. GPG key A8B77238.
-- 
SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/
Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html

Reply via email to