I seem to be having trouble using guestmount to mount a Fedora 24 disk that is
using XFS. This is the error messings I get when I try:
root@cpdev-cn5:/var/lib/libvirt/images/base# guestmount --rw -a
${disk_path}/${disk_name} -m /dev/${target}1 /tmp/fedora-master/
libguestfs: error: mount_options: /dev/vda1 on /: mount: wrong fs type, bad
option, bad superblock on /dev/vda1,
missing codepage or helper program, or other error
In some cases useful info is found in syslog - try
dmesg | tail or so
guestmount: '/dev/sda1' could not be mounted. Did you mean one of these?
/dev/sda1 (xfs)
Verbose output shows:
libguestfs: recv_from_daemon: received GUESTFS_LAUNCH_FLAG
libguestfs: [03647ms] appliance is up
libguestfs: send_to_daemon: 72 bytes: 00 00 00 44 | 20 00 f5 f5 | 00 00 00 04 |
00 00 00 4a | 00 00 00 00 | ...
guestfsd: main_loop: new request, len 0x44
/dev/sda1: No such file or directory
mount -o /dev/vda1 /sysroot/
[ 1.759120] SGI XFS with ACLs, security attributes, realtime, large
block/inode numbers, no debug enabled
[ 1.762869] XFS (vda1): Version 5 superblock detected. This kernel has
EXPERIMENTAL support enabled!
[ 1.762869] Use of these features in this kernel is at your own risk!
[ 1.764819] XFS (vda1): Superblock has unknown read-only compatible features
(0x1) enabled.
[ 1.765834] XFS (vda1): Attempted to mount read-only compatible filesystem
read-write.
[ 1.765834] Filesystem can only be safely mounted read only.
[ 1.767472] XFS (vda1): SB validate failed with error 22.
mount: wrong fs type, bad option, bad superblock on /dev/vda1,
missing codepage or helper program, or other error
In some cases useful info is found in syslog - try
dmesg | tail or so
guestfsd: error: /dev/vda1 on /: mount: wrong fs type, bad option, bad
superblock on /dev/vda1,
missing codepage or helper program, or other error
In some cases useful info is found in syslog - try
dmesg | tail or so
guestfsd: main_loop: proc 74 (mount_options) took 0.09 seconds
libguestfs: recv_from_daemon: 272 bytes: 20 00 f5 f5 | 00 00 00 04 | 00 00 00
4a | 00 00 00 01 | 00 12 34 00 | ...
libguestfs: error: mount_options: /dev/vda1 on /: mount: wrong fs type, bad
option, bad superblock on /dev/vda1,
missing codepage or helper program, or other error
In some cases useful info is found in syslog - try
dmesg | tail or so
I've tried with both /dev/sda1 and /dev/vda1 but no luck. Interestingly
enough, a CentOS 7.2 image with XFS and the same setup (i.e., a single
partition formatted with XFS) mounts without issue. Any ideas?
Andre Goree
Senior Engineer, Atlantic.Net
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