[Libguestfs] Mounting disk images with ext2 filesystems on RHEL7

[Leonard Basuino]

On Wed, Feb 18, 2015 at 10:18 AM, Richard W.M. Jones <rjones at redhat.com>
wrote:

> On Wed, Feb 18, 2015 at 10:07:20AM -0500, Leonard Basuino wrote:
> > > ><rescue> e2fsck -n /dev/sda1
> > e2fsck 1.42.9 (28-Dec-2013)
> > The filesystem size (according to the superblock) is 104388 blocks
> > The physical size of the device is 103408 blocks
> > Either the superblock or the partition table is likely to be corrupt!
> > Abort? no
> >
> > /boot contains a file system with errors, check forced.
> > Pass 1: Checking inodes, blocks, and sizes
> > Pass 2: Checking directory structure
> > Pass 3: Checking directory connectivity
> > Pass 4: Checking reference counts
> > Pass 5: Checking group summary information
> > /boot: 36/26104 files (2.8% non contiguous), 12201/104388 blocks
>
> I would say this is (fairly) conclusive proof that the filesystem is
> really truncated, and RHEL 6 is just ignoring that hard fact.  Note
> that the code paths used by ext4 kernel and e2fsck (ie. e2fsprogs) are
> quite different, and both think the filesystem is longer than the
> containing device.
>
> Sorry :-(
>
> No need to be sorry ... you have put me on a promising path ...
I was able to mount it after resizing the filesystem ...
within virt-rescue ...
><rescue> resize2fs -f /dev/sda1
then I was able to mount it with ...
guestmount -a <image> -m /dev/sda1 <mount point>
Not ideal for my needs, but work in progress.


> Rich.
>
> --
> Richard Jones, Virtualization Group, Red Hat
> http://people.redhat.com/~rjones
> Read my programming and virtualization blog: http://rwmj.wordpress.com
> virt-p2v converts physical machines to virtual machines.  Boot with a
> live CD or over the network (PXE) and turn machines into KVM guests.
> http://libguestfs.org/virt-v2v
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://listman.redhat.com/archives/libguestfs/attachments/20150218/f4383b2f/attachment.htm>