Hi Richard,
Thank you for the reply, I hope this mail finds you well.
We resolved guestfs_add_drive failure, now guestfs_add_drive is adding disk
successfully after adding "format:raw".
But guestfs_launch is failing Kindly help me to troubleshoot or to find any
workaround.
Error_callback is in-place, it return guestfs_last_error()
guestfs_last_error():
[ 2023-09-16 17:24:20 ] errno: ( 10 ) : command: waitpid: No child
processes
[ 2023-09-16 17:24:20 ] errno: ( 10 ) : command: waitpid: No child
processes
While: guestfs_lanch error:
libguestfs: trace: set_verbose true
libguestfs: trace: set_verbose = 0
libguestfs: trace: set_backend "direct"
libguestfs: trace: set_backend = 0
libguestfs: create: flags = 0, handle = 0xbb0a70, program = greagent.exe
libguestfs: trace: add_drive
"/var/opt/omni/tmp/GRE/5029f5c4-e08d-23e1-07d3-96c5c7ffeeac/2023/09/16-3/5029f5c4-e08d-23e1-07d3-96c5c7ffeeac/Datastore2-9166/RAJATEST/RAJATEST_1-flat.vmdk"
"format:raw"
libguestfs: trace: add_drive = 0
libguestfs: trace: add_drive
"/var/opt/omni/tmp/GRE/5029f5c4-e08d-23e1-07d3-96c5c7ffeeac/2023/09/16-3/5029f5c4-e08d-23e1-07d3-96c5c7ffeeac/Datastore2-9166/RAJATEST/RAJATEST_2-flat.vmdk"
"format:raw"
libguestfs: trace: add_drive = 0
libguestfs: trace: add_drive
"/var/opt/omni/tmp/GRE/5029f5c4-e08d-23e1-07d3-96c5c7ffeeac/2023/09/16-3/5029f5c4-e08d-23e1-07d3-96c5c7ffeeac/Datastore2-9166/RAJATEST/RAJATEST-flat.vmdk"
"format:raw"
libguestfs: trace: add_drive = 0
libguestfs: trace: launch
libguestfs: trace: max_disks
libguestfs: trace: max_disks = 255
libguestfs: trace: get_tmpdir
libguestfs: trace: get_tmpdir = "/tmp"
libguestfs: trace: version
libguestfs: trace: version = <struct guestfs_version = major: 1, minor:
38, release: 4, extra: rhel=8,release=15.module+el8.2.0+5297+222a20af,libvirt, >
libguestfs: trace: get_backend
libguestfs: trace: get_backend = "direct"
libguestfs: launch: program=greagent.exe
libguestfs: launch:
version=1.38.4rhel=8,release=15.module+el8.2.0+5297+222a20af,libvirt
libguestfs: launch: backend registered: unix
libguestfs: launch: backend registered: uml
libguestfs: launch: backend registered: libvirt
libguestfs: launch: backend registered: direct
libguestfs: launch: backend=direct
libguestfs: launch: tmpdir=/tmp/libguestfsMzD9Rl
libguestfs: launch: umask=0002
libguestfs: launch: euid=0
libguestfs: is_openable: /dev/kvm: No such file or directory
libguestfs: trace: get_backend_setting "force_tcg"
libguestfs: trace: get_backend_setting = NULL (error)
libguestfs: trace: get_cachedir
libguestfs: trace: get_cachedir = "/var/tmp"
libguestfs: begin building supermin appliance
libguestfs: run supermin
libguestfs: command: run: /usr/bin/supermin
libguestfs: command: run: \ --build
libguestfs: command: run: \ --verbose
libguestfs: command: run: \ --if-newer
libguestfs: command: run: \ --lock /var/tmp/.guestfs-0/lock
libguestfs: command: run: \ --copy-kernel
libguestfs: command: run: \ -f ext2
libguestfs: command: run: \ --host-cpu x86_64
libguestfs: command: run: \ /usr/lib64/guestfs/supermin.d
libguestfs: command: run: \ -o /var/tmp/.guestfs-0/appliance.d
supermin: version: 5.1.19
supermin: rpm: detected RPM version 4.14
supermin: package handler: fedora/rpm
supermin: acquiring lock on /var/tmp/.guestfs-0/lock
supermin: if-newer: output does not need rebuilding
libguestfs: trace: launch = -1 (error)
libguestfs: trace: close
libguestfs: closing guestfs handle 0xbb0a70 (state 0)
libguestfs: command: run: rm
libguestfs: command: run: \ -rf /tmp/libguestfsMzD9Rl
Thanks
RR
-----Original Message-----
From: Richard W.M. Jones <[email protected]>
Sent: Saturday, September 16, 2023 9:39 PM
To: Teja Konapalli <[email protected]>
Cc: [email protected]; Raja Ram Sharma <[email protected]>; Divyanshu
Kumar <[email protected]>
Subject: [EXTERNAL] - Re: LIBGUESTFS mount disk failure
CAUTION: This email originated from outside of the organization. Do not click
links or open attachments unless you recognize the sender and know the content
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On Sat, Sep 16, 2023 at 03:56:07PM +0000, Teja Konapalli wrote:
> Hi Richard & Team,
>
>
>
> Could you please help here on the below failure of mounting disk using
> libguestfs.
>
>
>
> OS version: RHEL 8.2
>
> Libguestfs version: 1.38.0 stable
>
>
>
>
>
> Error logs:
>
>
>
> libguestfs: trace: add_drive_ro "/var/opt/tmp/GRE//RAJA/RAJAT-flat.vmdk"
> libguestfs: trace: add_drive "/var/opt/tmp/GRE//RAJA/RAJAT-flat.vmdk"
> "readonly:true"
> libguestfs: creating COW overlay to protect original drive content
> libguestfs: trace: disk_create "/tmp/libguestfsCpl8My/overlay3.qcow2" "qcow2"
> -1 "backingfile:/var/opt/tmp/GRE//RAJA/RAJAT-flat.vmdk"
> libguestfs: command: run: qemu-img
> libguestfs: command: run: \ create
> libguestfs: command: run: \ -f qcow2
> libguestfs: command: run: \ -o backing_file=/var/opt/tmp/GRE//RAJA/
> RAJAT-flat.vmdk
> libguestfs: command: run: \ /tmp/libguestfsCpl8My/overlay3.qcow2
> Formatting '/tmp/libguestfsCpl8My/overlay3.qcow2', fmt=qcow2
> size=21474836480 backing_file=/var/opt/tmp/GRE//RAJA/RAJAT-flat.vmdk
> cluster_size=65536 lazy_refcounts=off refcount_bits=16
> libguestfs: trace: disk_create = -1 (error)
^^ There should be an error message between this two lines. Without seeing
what the error is, it's hard to know what the problem is.
Is this happening in a program you wrote? If so you probably want to read the
bit about how to handle error messages:
https://urldefense.com/v3/__https://libguestfs.org/guestfs.3.html*error-handling__;Iw!!Obbck6kTJA!cv1KjwDluVdY6QeDtrOh_Pwp78cbFyf3tGQ_N76zq1LTl8f3ml4l1FUbxYL0DYvKOC8zw0dsAbychXT0$
Rich.
> libguestfs: trace: add_drive = -1 (error)
> libguestfs: trace: add_drive_ro = -1 (error)
> libguestfs: trace: close
> libguestfs: closing guestfs handle 0x1e89340 (state 0)
> libguestfs: command: run: rm
> libguestfs: command: run: \ -rf /tmp/libguestfsCpl8My
>
--
Richard Jones, Virtualization Group, Red Hat
https://urldefense.com/v3/__http://people.redhat.com/*rjones__;fg!!Obbck6kTJA!cv1KjwDluVdY6QeDtrOh_Pwp78cbFyf3tGQ_N76zq1LTl8f3ml4l1FUbxYL0DYvKOC8zw0dsAUbGivne$
Read my programming and virtualization blog:
https://urldefense.com/v3/__http://rwmj.wordpress.com__;!!Obbck6kTJA!cv1KjwDluVdY6QeDtrOh_Pwp78cbFyf3tGQ_N76zq1LTl8f3ml4l1FUbxYL0DYvKOC8zw0dsAaDLxRcq$
virt-builder quickly builds VMs from scratch
https://urldefense.com/v3/__http://libguestfs.org/virt-builder.1.html__;!!Obbck6kTJA!cv1KjwDluVdY6QeDtrOh_Pwp78cbFyf3tGQ_N76zq1LTl8f3ml4l1FUbxYL0DYvKOC8zw0dsAWV9JWbZ$
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