On Wed, Aug 23, 2017 at 06:25:17AM +0000, Tang, Alan (NSB - CN/Qingdao) wrote: > [ 0.000000] Linux version 3.10.101 (root@ci092133) (gcc version 4.8.3 > 20140911 (Red Hat 4.8.3-9) (GCC) ) #1 SMP Mon Apr 11 16:22:43 ULAT 2016
... > commandrvf: mount -o ro /dev/sda1 /sysroot/ > [ 2.333550] SGI XFS with ACLs, security attributes, large block/inode > numbers, no debug enabled > [ 2.339803] XFS (sda1): Version 5 superblock detected. This kernel has > EXPERIMENTAL support enabled! > [ 2.339803] Use of these features in this kernel is at your own risk! > [ 2.342254] XFS (sda1): Superblock has unknown incompatible features (0x1) > enabled. > [ 2.342254] Filesystem can not be safely mounted by this kernel. > [ 2.344366] ffff88001c25a000: 58 46 53 42 00 00 10 00 00 00 00 00 00 1f ff > 00 XFSB............ > [ 2.345719] ffff88001c25a010: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 > 00 ................ > [ 2.347074] ffff88001c25a020: e3 51 03 f0 80 28 40 84 b7 5a 98 69 a8 46 b6 > 46 .Q...(@..Z.i.F.F > [ 2.348416] ffff88001c25a030: 00 00 00 00 00 10 00 04 00 00 00 00 00 00 00 > 40 ...............@ > [ 2.349765] XFS (sda1): Internal error xfs_sb_read_verify at line 730 of > file fs/xfs/xfs_mount.c. Caller 0xffffffffa01faf35 The problem is that the XFS module in this old kernel does not know how to read new features in the XFS filesystem from the CentOS 7 kernel (and instead of giving a useful error, panics). Unfortunately in general it's not possible to read an XFS filesystem from a newer machine with an older kernel. You will have to upgrade the host to a new version, or install or use a newer kernel by setting various environment variables: http://libguestfs.org/guestfs-faq.1.html#broken-kernel-or-trying-a-different-kernel Rich. -- Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones Read my programming and virtualization blog: http://rwmj.wordpress.com virt-top is 'top' for virtual machines. Tiny program with many powerful monitoring features, net stats, disk stats, logging, etc. http://people.redhat.com/~rjones/virt-top _______________________________________________ Libguestfs mailing list [email protected] https://www.redhat.com/mailman/listinfo/libguestfs
