[CentOS] parted - is there a problem

Gregory P. Ennis PoMec at PoMec.Net
Tue Sep 25 22:41:58 UTC 2007

On Tue, 2007-09-25 at 15:02 +0200, Alain Spineux wrote:
> On 9/25/07, Gregory P. Ennis <PoMec at pomec.net> wrote:
> > Everyone,
> >
> > I recently added a 300gig Seagate sata drive on a Centos 5.0 and have a
> > couple of questions.
> >
> > The drive was recognized with the device as /dev/sdc.  The system came
> > with some SCCI drives that are labeled as /dev/sda and /dev/sdb.  I was
> > surprised that the sata drives used sdc.  Are the sata drives considered
> > more like SCCI or IDE drives?
> Yes ATA drive look more like SCSI than old IDE
> >
> > The real problem occurred when I tried to partition the drive with
> > parted.  I used he command mkpart to form one partition of 300 gigs
> > which created /dev/sdc1, and then after 'quiting' parted used mkfs.ext3
> > to create a file system. Everything went as expected with the ability to
> > mount the file system and copy files into it.  However, /dev/sdc1
> > disappeared when I rebooted.  After the reboot /dev/sdc1 was missing and
> > CentOs obviously could not recognize the partition.  The error is
> > probably related to my lack of experience with parted so I tried it 2
> > other times with the same results.
> >
> > I finally gave up and used fdisk which  has worked without a problem.
> >
> > By way of observation I could not find a 'write to disk' command in
> > parted like what is present in fdisk.  Is there a problem with parted or
> > I am just lacking in knowledge of some of the parted commands.
> > Certainly could not find any write like statements in the man pages or
> > the info pages.
> >
> > Are there others of you that use parted?  What did I do wrong?
> I dont see anything wrong.
> maybe sync will help the OS to write the new partition on the disk.
> # sync
> also You could use partprob to reread partition from disk and verify
> chnages are flushed on disk.

Good thoughts !!!  I had no knowledge of 'sync'.... sounds like a real
possibility, but I am surprised that parted would need sync.

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