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Description of problem:
virt-get-kernel prompts an 'invalid value' error when using --format auto.
Version-Release number of selected component (if applicable):
libguestfs-1.32.4-3.el7.aarch64
libguestfs-tools-c-1.32.4-3.el7.x86_64
How reproducible:
Always
Steps to Reproduce:
1. Prepare an rhel7 image: rhel7.1-sr1.qcow2
2. # virt-get-kernel --add rhel7.1-sr1.qcow2 --format auto -v -x
libguestfs: trace: set_verbose true
libguestfs: trace: set_verbose = 0
libguestfs: trace: add_drive "/home/xchen/my-images/rhel7.1-sr1.qcow2" "readonly:true" "format:auto" "protocol:file"
libguestfs: creating COW overlay to protect original drive content
libguestfs: trace: get_tmpdir
libguestfs: trace: get_tmpdir = "/tmp"
libguestfs: trace: disk_create "/tmp/libguestfstyNuRg/overlay1" "qcow2" -1 "backingfile:/home/xchen/my-images/rhel7.1-sr1.qcow2" "backingformat:auto"
libguestfs: trace: disk_create = -1 (error)
libguestfs: trace: add_drive = -1 (error)
virt-get-kernel: error: libguestfs error: invalid value for backingformat
parameter 'auto'
libguestfs: trace: close
libguestfs: closing guestfs handle 0x1fc82e0 (state 0)
libguestfs: command: run: rm
libguestfs: command: run: \ -rf /tmp/libguestfstyNuRg
Actual results:
virt-get-kernel: error: libguestfs error: invalid value for backingformat
parameter 'auto
Expected results:
virt-get-kernel should auto-detect the format of the disk image and can get kernel and ramdisk from guests successfully.
Or,this option should be deleted from man page if it is not actually provided.
Additional info:
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.
For information on the advisory, and where to find the updated
files, follow the link below.
If the solution does not work for you, open a new bug report.
https://rhn.redhat.com/errata/RHSA-2016-2576.html