Hi everybody!
I've a little problem with resizing a logical xfs partition.
I've just wanted to add to my sda5 partition (logical one) 10GB more. So I deleted and recreated the partition with fdisk with the same starting point. The problem is that xfs_growfs now refuses to expand the underlying filesystem because it's not mounted; at the same time the mount command refuses to mount the volume, no discovering the filesystem (neither with the -t xfs option).

-----------------------------------------------------------
(parted) p
p
Model: ATA HTS541080G9SA00 (scsi)
Disk /dev/sda: 80.0GB
Sector size (logical/physical): 512B/512B
Partition Table: msdos

Number Start End Size Type File system Flags
1 32.3kB 4294MB 4294MB primary ntfs boot
2 4294MB 14.3GB 10.0GB primary ext3
3 14.3GB 14.5GB 207MB primary linux-swap
4 14.5GB 80.0GB 65.5GB extended lba
5 14.5GB 80.0GB 65.5GB logical

(parted)

fdisk

Device Boot Start End Blocks Id System
/dev/sda1 * 1 522 4192933+ 7 HPFS/NTFS
/dev/sda2 523 1738 9766019+ 83 Linux
/dev/sda3 1738 1763 202313 82 Linux swap
/dev/sda4 1764 9730 63989446+ f W95 Ext'd (LBA)
/dev/sda5 1764 9730 63989415 83 Linux

root@station:~# mount /dev/sda5 /mnt/hd/
mount: you must specify the filesystem type
root@station:~# mount -t xfs /dev/sda5 /mnt/hd/
mount: wrong fs type, bad option, bad superblock on /dev/sda5,
missing codepage or helper program, or other error
In some cases useful info is found in syslog - try
dmesg | tail or so
root@station:~# xfs_growfs -d /dev/sda5
xfs_growfs: /dev/sda5 is not a mounted XFS filesystem
root@station:~#
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What to do now? I've lost all of my data?
Thank you so much,

Andrea

From what I can understand, when you used fdisk, you did loose all your data because with fdisk you first delete the partition and then you create a new one.

Probably you had to grow your partition first. I am not acquated with xfs, so I cannot tell you how to do it, but you need to check if the partition ought to be mounted or not at that stage.

Chris

No, deleting a partition merely deletes the definition of the partition - doesn't affect the underlying filesystem. I do it reasonably often. Redefining a logical partition could cause issues - if the start wasn't handled appropriately. I don't use xfs, but I do what Karimo did without problem on ext3.
Dunno - maybe see if testdisk will retrieve things. Seems to support xfs according to the site.

What syg00 wrote make sense to me.
I suppose that redifining the file system exactly how it was before should restore the data.
I am very sceptical about retaining data from a enlarged partition with fdisk.

lvextend -L +510G /dev/vgfd/fd
xfs_growfs /dev/vgfd/fd

While this appeared:
xfs_growfs: /dev/mapper/vgfd-fd is not a mounted XFS filesystem

I used do:
mount -o remount,rw /dev/vgfd/fd
but still no lucky, I have to stop the work depend on it and umount it, then "mount -a"; then I can't mount it anymore, can not read superblock... then "xfs_repair /dev/vgfd/fd".

Maybe the error info said damage of filesystem's superblock.

Before playing about disk partitioning, I always experiment on a spare partition on the hard disk or a disposable USB flash drive first. You are bound to make mistakes unless you are following a documented procedure.


Can you send us the following:

# fdisk -l

and

# vgscan

Problem solved. In my case, my filesystem xfs beyond 2TB when I extended it, while this is a 32-bit system, I mirgated to CentOS-5.4-x86_64, data is all good, nothing damaged. Luky!!