[CentOS] parted - is there a problem

Alain Spineux aspineux at gmail.com
Tue Sep 25 13:02:58 UTC 2007

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.

> Greg Ennis
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> CentOS at centos.org
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Alain Spineux
aspineux gmail com
May the sources be with you

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