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-----Mensaje original----- De: centos-bounces@centos.org [mailto:centos-bounces@centos.org] En nombre de John R Pierce Enviado el: jueves, 12 de agosto de 2010 18:22 Para: CentOS mailing list Asunto: Re: [CentOS] Problem resizing partition of nfs volume
On 08/12/10 2:56 PM, Dan Yamins wrote:
Hi:
I have an NFS volume that I'm trying to resize a partition on.
Something about the fdisk process is corrupting something on the drive
Before running fdisk, I can mount the volume find:
$ mount /dev/sdo1 /home
... and the volume is mounted fine.
And, $ e2fsck -f /dev/sdo1 /dev/sdo1: clean, ...
But then I run fdisk to rewrite the partition table of this drive, to expand the /dev/sdo1 partition w/o losing data:
$ fdisk /dev/sdo # Type 'd' to delete the primary partition # Type 'n' for new partition # Type 'p' for primary # Type '1' for 1st # Type Enter for 1st cylinder # Type Enter for last cylinder (full disk) # Type 'w' to finish
Calling ioctl() ... Syncing disks ...
But then something has gone wrong.
$ e2fsck -f /dev/sdo1 e2fsck 1.39 (29-May-2006) Couldn't find ext2 superblock, trying backup blocks... e2fsck: Bad magic number in super-block while trying to open /dev/sdm1 ...
And I can't mount the volume any more: $ mount /dev/sdo1 /home mount: you must specify the filesystem type
What am I doing wrong? Am I missing a step of the process?
yeah, you deleted your file system, then created a new empty partition.
instead, you should have used parted(8) or similar to expand the partition, then used resize2fs(8) to expand the file system on this partition to its new size.
me, I'd strongly suggest doing a full backup of the partition first with dump(8)
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