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Re: disk partitions on that aren't recognized by mkfs + parted



fdisk /dev/sdi

The number of cylinders for this disk is set to 243201.
There is nothing wrong with that, but this is larger than 1024,
and could in certain setups cause problems with:
1) software that runs at boot time (e.g., old versions of LILO)
2) booting and partitioning software from other OSs
   (e.g., DOS FDISK, OS/2 FDISK)

Command (m for help): p

Disk /dev/sdi: 2000.3 GB, 2000398934016 bytes
255 heads, 63 sectors/track, 243201 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

   Device Boot      Start         End      Blocks   Id  System
/dev/sdi1               1      243201  1953512001   83  Linux

Command (m for help): d
Selected partition 1

Command (m for help): p

Disk /dev/sdi: 2000.3 GB, 2000398934016 bytes
255 heads, 63 sectors/track, 243201 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

   Device Boot      Start         End      Blocks   Id  System

Command (m for help): n
Command action
   e   extended
   p   primary partition (1-4)
p
Partition number (1-4): 1
First cylinder (1-243201, default 1):
Using default value 1
Last cylinder or +size or +sizeM or +sizeK (1-243201, default 243201):
Using default value 243201

Command (m for help): w
The partition table has been altered!

Calling ioctl() to re-read partition table.
Syncing disks.
[root m3science ~]# partprobe
Warning: Unable to open /dev/hda read-write (Read-only file system).
/dev/hda has been opened read-only.
Warning: /dev/sdh contains GPT signatures, indicating that it has a GPT
table.  However, it does not have a valid fake msdos partition table, as it
should.  Perhaps it was corrupted -- possibly by a program that doesn't
understand GPT partition tables.  Or perhaps you deleted the GPT table, and
are now using an msdos partition table.  Is this a GPT partition table?
[root m3science ~]# mke2fs -j /dev/sdi1
mke2fs 1.39 (29-May-2006)
/dev/sdi1 is apparently in use by the system; will not make a filesystem
here!


On Thu, May 5, 2011 at 2:23 PM, raj sourabh <rajsourabh1 gmail com> wrote:

> Ok, so things look fine till here when you have created partitions
> sdh1,sdi1,sdj1,sdk1.. even after running partprobe if you are getting the
> same here then try the follwing;
>
> # delete one of the partition through fdisk eg.sdi1
> # after deletion check eg. # fdisk /dev/sdi and then list the partitions
> (You should not see anything)
> # Recreate the partition as primary
> #  Partprobe
> # and then try mke2fs -j /dev/sdi1
>
> Hope this should give some useful results.
>
> Regards,
>
> Raj
>
>
>
> On Thu, May 5, 2011 at 8:05 PM, Doll, Margaret Ann
> <margaret_doll brown edu>wrote:
>
> > On Thu, May 5, 2011 at 11:33 AM, raj sourabh <rajsourabh1 gmail com>
> > wrote:
> >
> > > Hi,
> > >
> > > Please provide the output of following:
> > >
> > > #fdisk -l
> > >
> >
> > for the four disks in question
> >
> > WARNING: GPT (GUID Partition Table) detected on '/dev/sdh'! The util
> fdisk
> > doesn't support GPT. Use GNU Parted.
> >
> >
> > Disk /dev/sdh: 2000.3 GB, 2000398934016 bytes
> > 255 heads, 63 sectors/track, 243201 cylinders
> > Units = cylinders of 16065 * 512 = 8225280 bytes
> >
> >   Device Boot      Start         End      Blocks   Id  System
> > /dev/sdh1               1      243201  1953512001   83  Linux
> >
> > Disk /dev/sdi: 2000.3 GB, 2000398934016 bytes
> > 255 heads, 63 sectors/track, 243201 cylinders
> > Units = cylinders of 16065 * 512 = 8225280 bytes
> >
> >   Device Boot      Start         End      Blocks   Id  System
> > /dev/sdi1               1      243201  1953512001   83  Linux
> >
> > Disk /dev/sdj: 2000.3 GB, 2000398934016 bytes
> > 255 heads, 63 sectors/track, 243201 cylinders
> > Units = cylinders of 16065 * 512 = 8225280 bytes
> >
> >   Device Boot      Start         End      Blocks   Id  System
> > /dev/sdj1               1      243201  1953512001   83  Linux
> >
> > Disk /dev/sdk: 2000.3 GB, 2000398934016 bytes
> > 255 heads, 63 sectors/track, 243201 cylinders
> > Units = cylinders of 16065 * 512 = 8225280 bytes
> >
> >   Device Boot      Start         End      Blocks   Id  System
> > /dev/sdk1               1      243201  1953512001   83  Linux
> >
> >
> > > #df -h
> > >
> >
> > Filesystem            Size  Used Avail Use% Mounted on
> > /dev/sda3             1.6G  982M  489M  67% /
> > tmpfs                 1.8G     0  1.8G   0% /dev/shm
> > /dev/sda10            883G  449G  389G  54% /home
> > /dev/sdb1             4.1G  569M  3.4G  15% /var
> > /dev/sdb2             913G  245G  622G  29% /home2
> > /dev/sda9             730M  519M  173M  76% /oldvar
> > /dev/sda8             1.1G   34M  976M   4% /tmp
> > /dev/sda6             2.1G   72M  2.0G   4% /opt
> > /dev/sda2             8.1G  3.6G  4.2G  46% /usr
> > /dev/sda5             3.1G  2.3G  671M  78% /usr/local
> > /dev/sda1             1.1G  120M  889M  12% /boot
> > /dev/sdc               12T   12T  183G  99% /m3team
> > /dev/mapper/vg1-lv1   7.1T  1.6T  5.2T  24% /m3team3
> > quahog2:/LVM2/crism13
> >                      4.9T  191G  4.5T   5% /m3team2
> > porter2:/m3_usb1      1.8T   96K  1.7T   1% /m3_usb1
> > porter2:/m3_usb2      1.8T  274G  1.5T  16% /m3_usb2
> > none                  1.8G  104K  1.8G   1% /var/lib/xenstored
> >
> >
> > eight disks were purchased and added to the system as the same time.  I
> > successfully created a log volume group out of the first four; they are
> > mounted on /m3team3.
> >
> > I used parted to create a GPT label on the disks.  Then I used fdisk to
> > create one partition taking up all the space on the disk.  I then used
> > "mkfs
> > -t ext3 /dev/sdg1 (etc.) on all the partitions before I used pvcreate,
> > vgcreate and lgcreate.
> >
> > The process worked on the first four disks.
> >
> > Thanks for your help
> >
> > >
> > > Regards,
> > >
> > > Raj
> > >
> > > On Thu, May 5, 2011 at 5:00 PM, Doll, Margaret Ann
> > > <margaret_doll brown edu>wrote:
> > >
> > > > I get the same error with mk2efs -j /dev/sdi1
> > > >
> > > > mke2fs 1.39 (29-May-2006)
> > > > /dev/sdi1 is apparently in use by the system; will not make a
> > filesystem
> > > > here!
> > > >
> > > >
> > > >  On Thu, May 5, 2011 at 8:50 AM, raj sourabh <rajsourabh1 gmail com>
> > > > wrote:
> > > >
> > > > > Hi,
> > > > >
> > > > > Did you try using fdisk for partition? and the use partprobe.
> > > > >
> > > > > eg. #fdisk /dev/sdi
> > > > >     # partprobe
> > > > >     #mke2fs -j /dev/sdiX
> > > > >
> > > > > I hope this would help.
> > > > >
> > > > > Regards,
> > > > >
> > > > > Raj
> > > > >
> > > > >
> > > > >
> > > > > On Thu, May 5, 2011 at 4:29 PM, Doll, Margaret Ann
> > > > > <margaret_doll brown edu>wrote:
> > > > >
> > > > > > In this particular case, I have rebooted the system many times
> and
> > am
> > > > > > unable
> > > > > > to get mkfs to work.  The disk partitions are also not on the
> same
> > > disk
> > > > > as
> > > > > > /.  How do I get the disk partitions to work with mkfs?
> > > > > >
> > > > > > On Thu, May 5, 2011 at 8:25 AM, Corey Kovacs <
> > corey kovacs gmail com
> > > >
> > > > > > wrote:
> > > > > >
> > > > > > > Important to note
> > > > > > >
> > > > > > > 1. It's not often / is repartitioned.
> > > > > > > 2. This isn't a problem unique to RHEL.
> > > > > > >
> > > > > > > C
> > > > > > >
> > > > > > > Sent from my iPod
> > > > > > >
> > > > > > > On May 5, 2011, at 8:14 AM, "Marti, Robert" <RJM002 shsu edu>
> > > wrote:
> > > > > > >
> > > > > > > > A reboot is required if you change partitions on the same
> disk
> > > that
> > > > > > > houses /.
> > > > > > > >
> > > > > > > > On May 5, 2011, at 6:41, "Stainforth, Matthew (SD/DS)" <
> > > > > > > Matthew Stainforth gnb ca> wrote:
> > > > > > > >
> > > > > > > >>> the default behavior for RHEL6 but I am not sure when or IF
> > it
> > > > > > > >>> actually hit RHEL5. Sounds like it might have. In RHEL6 a
> > > reboot
> > > > is
> > > > > > > >>> simply a requirement, full stop.
> > > > > > > >>
> > > > > > > >> In RHEL6 a reboot is required between repartitioning and
> > > mkfs'ing?
> > > > > >  What
> > > > > > > a sad thing if true.
> > > > > > > >>
> > > > > > > >> --
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