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.