Can't recover data from Windows 10 Backup

Asked by Harry Dogerman on 2020-03-23

I am transitioning to Ubuntu from Windows 10. Before installing the new OS, I made a full backup of my windows 10, expecting to extract individual files from the backup on my Ubuntu. Now I'm stuck with a bunch of .xml and .vhdx files How do I proceed?

I have already tried https://stackoverflow.com/questions/36819474/how-can-i-attach-a-vhdx-or-vhd-file-in-linux/37790474 and failed with the following error message:

tsidia@tsidia-System-Product-Name:/media/tsidia/SP PHD U3/WindowsImageBackup/DESKTOP-HG1003T/Backup 2020-03-22 140135$ guestmount -a c3c7f9c3-0000-0000-0000-501f00000000.vhdx -i -r /home/tsidia/Desktop/Backup
libguestfs: trace: set_verbose true
libguestfs: trace: set_verbose = 0
libguestfs: create: flags = 0, handle = 0x555f823973b0, program = guestmount
libguestfs: trace: set_recovery_proc false
libguestfs: trace: set_recovery_proc = 0
libguestfs: trace: add_drive "c3c7f9c3-0000-0000-0000-501f00000000.vhdx" "readonly:true"
libguestfs: creating COW overlay to protect original drive content
libguestfs: trace: get_tmpdir
libguestfs: trace: get_tmpdir = "/tmp"
libguestfs: trace: disk_create "/tmp/libguestfsHmRYJu/overlay1.qcow2" "qcow2" -1 "backingfile:/media/tsidia/SP PHD U3/WindowsImageBackup/DESKTOP-HG1003T/Backup 2020-03-22 140135/c3c7f9c3-0000-0000-0000-501f00000000.vhdx"
libguestfs: command: run: qemu-img
libguestfs: command: run: \ create
libguestfs: command: run: \ -f qcow2
libguestfs: command: run: \ -o backing_file=/media/tsidia/SP PHD U3/WindowsImageBackup/DESKTOP-HG1003T/Backup 2020-03-22 140135/c3c7f9c3-0000-0000-0000-501f00000000.vhdx
libguestfs: command: run: \ /tmp/libguestfsHmRYJu/overlay1.qcow2
qemu-img: /tmp/libguestfsHmRYJu/overlay1.qcow2: VHDX image file '/media/tsidia/SP PHD U3/WindowsImageBackup/DESKTOP-HG1003T/Backup 2020-03-22 140135/c3c7f9c3-0000-0000-0000-501f00000000.vhdx' opened read-only, but contains a log that needs to be replayed
To replay the log, run:
qemu-img check -r all '/media/tsidia/SP PHD U3/WindowsImageBackup/DESKTOP-HG1003T/Backup 2020-03-22 140135/c3c7f9c3-0000-0000-0000-501f00000000.vhdx'
Could not open backing image to determine size.
libguestfs: error: qemu-img: /tmp/libguestfsHmRYJu/overlay1.qcow2: qemu-img exited with error status 1, see debug messages above
libguestfs: trace: disk_create = -1 (error)
libguestfs: trace: add_drive = -1 (error)
libguestfs: trace: close
libguestfs: closing guestfs handle 0x555f823973b0 (state 0)
libguestfs: command: run: rm
libguestfs: command: run: \ -rf /tmp/libguestfsHmRYJu

Question information

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Status:
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Ubuntu Edit question
Assignee:
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Last query:
2020-03-23
Last reply:
2020-04-08

How did make the files?
What process and application did you use to make the backup?

Thanks

Simply naming file extensions doesn’t tell us anything

Harry Dogerman (tsidia) said : #2

I created the backup files using the built-in "system image backup" feature in windows 10. To be more precise, I followed this guide:
https://www.faqforge.com/windows/windows-10/take-full-backup-windows-10-on-an-external-hard-drive/

Did you run:

sudo qemu-img check -r all '/media/tsidia/SP PHD U3/WindowsImageBackup/DESKTOP-HG1003T/Backup 2020-03-22 140135/c3c7f9c3-0000-0000-0000-501f00000000.vhdx'

As stated in your own output?

Harry Dogerman (tsidia) said : #4

sudo qemu-img check -r all '/media/tsidia/SP PHD U3/WindowsImageBackup/DESKTOP-HG1003T/Backup 2020-03-22 140135/c3c7f9c3-0000-0000-0000-501f00000000.vhdx' found one corruption, fixed it, then found no more errors.

After running guestmount --add c3c7f9c3-0000-0000-0000-501f00000000.vhdx --inspector --ro /home/tsidia/Desktop/Backup again I got the following error

501f00000000.vhdx --inspector --ro /home/tsidia/Desktop/Backup
libguestfs: trace: set_verbose true
libguestfs: trace: set_verbose = 0
libguestfs: create: flags = 0, handle = 0x56163665d3b0, program = guestmount
libguestfs: trace: set_recovery_proc false
libguestfs: trace: set_recovery_proc = 0
libguestfs: trace: add_drive "c3c7f9c3-0000-0000-0000-501f00000000.vhdx" "readonly:true"
libguestfs: creating COW overlay to protect original drive content
libguestfs: trace: get_tmpdir
libguestfs: trace: get_tmpdir = "/tmp"
libguestfs: trace: disk_create "/tmp/libguestfsu7AMsj/overlay1.qcow2" "qcow2" -1 "backingfile:/media/tsidia/SP PHD U3/WindowsImageBackup/DESKTOP-HG1003T/Backup 2020-03-22 140135/c3c7f9c3-0000-0000-0000-501f00000000.vhdx"
libguestfs: command: run: qemu-img
libguestfs: command: run: \ create
libguestfs: command: run: \ -f qcow2
libguestfs: command: run: \ -o backing_file=/media/tsidia/SP PHD U3/WindowsImageBackup/DESKTOP-HG1003T/Backup 2020-03-22 140135/c3c7f9c3-0000-0000-0000-501f00000000.vhdx
libguestfs: command: run: \ /tmp/libguestfsu7AMsj/overlay1.qcow2
Formatting '/tmp/libguestfsu7AMsj/overlay1.qcow2', fmt=qcow2 size=127165928448 backing_file=/media/tsidia/SP PHD U3/WindowsImageBackup/DESKTOP-HG1003T/Backup 2020-03-22 140135/c3c7f9c3-0000-0000-0000-501f00000000.vhdx cluster_size=65536 lazy_refcounts=off refcount_bits=16
libguestfs: trace: disk_create = 0
libguestfs: trace: add_drive = 0
libguestfs: trace: launch
libguestfs: trace: version
libguestfs: trace: version = <struct guestfs_version = major: 1, minor: 36, release: 13, extra: , >
libguestfs: trace: get_backend
libguestfs: trace: get_backend = "direct"
libguestfs: launch: program=guestmount
libguestfs: launch: version=1.36.13
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/libguestfsu7AMsj
libguestfs: launch: umask=0022
libguestfs: launch: euid=1000
libguestfs: is_openable: /dev/kvm: Permission denied
libguestfs: trace: get_backend_setting "force_tcg"
libguestfs: trace: get_backend_setting = NULL (error)
libguestfs: warning: current user is not a member of the KVM group (group ID 127). This user cannot access /dev/kvm, so libguestfs may run very slowly. It is recommended that you 'chmod 0666 /dev/kvm' or add the current user to the KVM group (you might need to log out and log in again).
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-1000/lock
libguestfs: command: run: \ --copy-kernel
libguestfs: command: run: \ -f ext2
libguestfs: command: run: \ --host-cpu x86_64
libguestfs: command: run: \ /usr/lib/x86_64-linux-gnu/guestfs/supermin.d
libguestfs: command: run: \ -o /var/tmp/.guestfs-1000/appliance.d
supermin: version: 5.1.19
supermin: package handler: debian/dpkg
supermin: acquiring lock on /var/tmp/.guestfs-1000/lock
supermin: build: /usr/lib/x86_64-linux-gnu/guestfs/supermin.d
supermin: reading the supermin appliance
supermin: build: visiting /usr/lib/x86_64-linux-gnu/guestfs/supermin.d/base.tar.gz type gzip base image (tar)
supermin: build: visiting /usr/lib/x86_64-linux-gnu/guestfs/supermin.d/daemon.tar.gz type gzip base image (tar)
supermin: build: visiting /usr/lib/x86_64-linux-gnu/guestfs/supermin.d/excludefiles type uncompressed excludefiles
supermin: build: visiting /usr/lib/x86_64-linux-gnu/guestfs/supermin.d/hostfiles type uncompressed hostfiles
supermin: build: visiting /usr/lib/x86_64-linux-gnu/guestfs/supermin.d/init.tar.gz type gzip base image (tar)
supermin: build: visiting /usr/lib/x86_64-linux-gnu/guestfs/supermin.d/packages type uncompressed packages
supermin: build: visiting /usr/lib/x86_64-linux-gnu/guestfs/supermin.d/packages-hfsplus type uncompressed packages
supermin: build: visiting /usr/lib/x86_64-linux-gnu/guestfs/supermin.d/packages-reiserfs type uncompressed packages
supermin: build: visiting /usr/lib/x86_64-linux-gnu/guestfs/supermin.d/packages-xfs type uncompressed packages
supermin: build: visiting /usr/lib/x86_64-linux-gnu/guestfs/supermin.d/udev-rules.tar.gz type gzip base image (tar)
supermin: mapping package names to installed packages
supermin: resolving full list of package dependencies
supermin: build: 213 packages, including dependencies
supermin: build: 9946 files
supermin: build: 6726 files, after matching excludefiles
supermin: build: 6729 files, after adding hostfiles
supermin: build: 6726 files, after removing unreadable files
supermin: build: 6729 files, after munging
supermin: kernel: looking for kernel using environment variables ...
supermin: kernel: looking for kernels in /lib/modules/*/vmlinuz ...
supermin: kernel: looking for kernels in /boot ...
supermin: kernel: kernel version of /boot/vmlinuz-5.3.0-42-generic = 5.3.0-42-generic (from filename)
supermin: kernel: picked modules path /lib/modules/5.3.0-42-generic
supermin: kernel: kernel version of /boot/vmlinuz-5.3.0-28-generic = 5.3.0-28-generic (from content)
supermin: kernel: picked modules path /lib/modules/5.3.0-28-generic
supermin: kernel: picked vmlinuz /boot/vmlinuz-5.3.0-42-generic
supermin: kernel: kernel_version 5.3.0-42-generic
supermin: kernel: modpath /lib/modules/5.3.0-42-generic
cp: cannot open '/boot/vmlinuz-5.3.0-42-generic' for reading: Permission denied
supermin: cp -p '/boot/vmlinuz-5.3.0-42-generic' '/var/tmp/.guestfs-1000/appliance.d.m5nq9dka/kernel': command failed, see earlier errors
libguestfs: error: /usr/bin/supermin exited with error status 1, see debug messages above
libguestfs: trace: launch = -1 (error)
libguestfs: trace: close
libguestfs: closing guestfs handle 0x56163665d3b0 (state 0)
libguestfs: command: run: rm
libguestfs: command: run: \ -rf /tmp/libguestfsu7AMsj

When run with sudo it instead produces this output

guestmount: no operating system was found on this disk

If using guestfish '-i' option, remove this option and instead
use the commands 'run' followed by 'list-filesystems'.
You can then mount filesystems you want by hand using the
'mount' or 'mount-ro' command.

If using guestmount '-i', remove this option and choose the
filesystem(s) you want to see by manually adding '-m' option(s).
Use 'virt-filesystems' to see what filesystems are available.

If using other virt tools, this disk image won't work
with these tools. Use the guestfish equivalent commands
(see the virt tool manual page).

libguestfs: warning: current user is not a member of the KVM group (group ID 127). This user cannot access /dev/kvm, so libguestfs may run very slowly. It is recommended that you 'chmod 0666 /dev/kvm' or add the current user to the KVM group (you might need to log out and log in again).

Did you add your user to the kvm group?

sudo usermod -a -G kvm $USER

Will do it (If you haven't already. You don't need to change the command). You will need to log off and on to make this active in the session (Just as in Windows)

Harry Dogerman (tsidia) said : #6

Added. Now it no longer asks me to do it, but otherwise the output is the same.

I also tried to avoid using the -i option, so instead I run virt-filesystems which told me the only filesystem on the vhdx file is /dev/sda2. Next I run guestmount --add c3c7f9c3-0000-0000-0000-501f00000000.vhdx --ro /home/tsidia/Desktop/Backup -m /dev/sda2 and received this:

501f00000000.vhdx --ro /home/tsidia/Desktop/Backup -m /dev/sda2
libguestfs: trace: set_verbose true
libguestfs: trace: set_verbose = 0
libguestfs: create: flags = 0, handle = 0x5584fb04d3b0, program = guestmount
libguestfs: trace: set_recovery_proc false
libguestfs: trace: set_recovery_proc = 0
libguestfs: trace: add_drive "c3c7f9c3-0000-0000-0000-501f00000000.vhdx" "readonly:true"
libguestfs: creating COW overlay to protect original drive content
libguestfs: trace: get_tmpdir
libguestfs: trace: get_tmpdir = "/tmp"
libguestfs: trace: disk_create "/tmp/libguestfs2U4m9q/overlay1.qcow2" "qcow2" -1 "backingfile:/media/tsidia/SP PHD U3/WindowsImageBackup/DESKTOP-HG1003T/Backup 2020-03-22 140135/c3c7f9c3-0000-0000-0000-501f00000000.vhdx"
libguestfs: command: run: qemu-img
libguestfs: command: run: \ create
libguestfs: command: run: \ -f qcow2
libguestfs: command: run: \ -o backing_file=/media/tsidia/SP PHD U3/WindowsImageBackup/DESKTOP-HG1003T/Backup 2020-03-22 140135/c3c7f9c3-0000-0000-0000-501f00000000.vhdx
libguestfs: command: run: \ /tmp/libguestfs2U4m9q/overlay1.qcow2
Formatting '/tmp/libguestfs2U4m9q/overlay1.qcow2', fmt=qcow2 size=127165928448 backing_file=/media/tsidia/SP PHD U3/WindowsImageBackup/DESKTOP-HG1003T/Backup 2020-03-22 140135/c3c7f9c3-0000-0000-0000-501f00000000.vhdx cluster_size=65536 lazy_refcounts=off refcount_bits=16
libguestfs: trace: disk_create = 0
libguestfs: trace: add_drive = 0
libguestfs: trace: launch
libguestfs: trace: version
libguestfs: trace: version = <struct guestfs_version = major: 1, minor: 36, release: 13, extra: , >
libguestfs: trace: get_backend
libguestfs: trace: get_backend = "direct"
libguestfs: launch: program=guestmount
libguestfs: launch: version=1.36.13
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/libguestfs2U4m9q
libguestfs: launch: umask=0022
libguestfs: launch: euid=1000
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-1000/lock
libguestfs: command: run: \ --copy-kernel
libguestfs: command: run: \ -f ext2
libguestfs: command: run: \ --host-cpu x86_64
libguestfs: command: run: \ /usr/lib/x86_64-linux-gnu/guestfs/supermin.d
libguestfs: command: run: \ -o /var/tmp/.guestfs-1000/appliance.d
supermin: version: 5.1.19
supermin: package handler: debian/dpkg
supermin: acquiring lock on /var/tmp/.guestfs-1000/lock
supermin: build: /usr/lib/x86_64-linux-gnu/guestfs/supermin.d
supermin: reading the supermin appliance
supermin: build: visiting /usr/lib/x86_64-linux-gnu/guestfs/supermin.d/base.tar.gz type gzip base image (tar)
supermin: build: visiting /usr/lib/x86_64-linux-gnu/guestfs/supermin.d/daemon.tar.gz type gzip base image (tar)
supermin: build: visiting /usr/lib/x86_64-linux-gnu/guestfs/supermin.d/excludefiles type uncompressed excludefiles
supermin: build: visiting /usr/lib/x86_64-linux-gnu/guestfs/supermin.d/hostfiles type uncompressed hostfiles
supermin: build: visiting /usr/lib/x86_64-linux-gnu/guestfs/supermin.d/init.tar.gz type gzip base image (tar)
supermin: build: visiting /usr/lib/x86_64-linux-gnu/guestfs/supermin.d/packages type uncompressed packages
supermin: build: visiting /usr/lib/x86_64-linux-gnu/guestfs/supermin.d/packages-hfsplus type uncompressed packages
supermin: build: visiting /usr/lib/x86_64-linux-gnu/guestfs/supermin.d/packages-reiserfs type uncompressed packages
supermin: build: visiting /usr/lib/x86_64-linux-gnu/guestfs/supermin.d/packages-xfs type uncompressed packages
supermin: build: visiting /usr/lib/x86_64-linux-gnu/guestfs/supermin.d/udev-rules.tar.gz type gzip base image (tar)
supermin: mapping package names to installed packages
supermin: resolving full list of package dependencies
supermin: build: 213 packages, including dependencies
supermin: build: 9946 files
supermin: build: 6726 files, after matching excludefiles
supermin: build: 6729 files, after adding hostfiles
supermin: build: 6726 files, after removing unreadable files
supermin: build: 6729 files, after munging
supermin: kernel: looking for kernel using environment variables ...
supermin: kernel: looking for kernels in /lib/modules/*/vmlinuz ...
supermin: kernel: looking for kernels in /boot ...
supermin: kernel: kernel version of /boot/vmlinuz-5.3.0-42-generic = 5.3.0-42-generic (from filename)
supermin: kernel: picked modules path /lib/modules/5.3.0-42-generic
supermin: kernel: kernel version of /boot/vmlinuz-5.3.0-28-generic = 5.3.0-28-generic (from content)
supermin: kernel: picked modules path /lib/modules/5.3.0-28-generic
supermin: kernel: picked vmlinuz /boot/vmlinuz-5.3.0-42-generic
supermin: kernel: kernel_version 5.3.0-42-generic
supermin: kernel: modpath /lib/modules/5.3.0-42-generic
cp: cannot open '/boot/vmlinuz-5.3.0-42-generic' for reading: Permission denied
supermin: cp -p '/boot/vmlinuz-5.3.0-42-generic' '/var/tmp/.guestfs-1000/appliance.d.6jbe3t3b/kernel': command failed, see earlier errors
libguestfs: error: /usr/bin/supermin exited with error status 1, see debug messages above
libguestfs: trace: launch = -1 (error)
libguestfs: trace: close
libguestfs: closing guestfs handle 0x5584fb04d3b0 (state 0)
libguestfs: command: run: rm
libguestfs: command: run: \ -rf /tmp/libguestfs2U4m9q

Are you reading the output or just copying and pasting. I’ve identified a few issues and resolved them just by reading your output

If you remove the:

-m /dev/sda2

Is it okay? Can you loop mount the file? I’m not overly familiar with mounting Windows backup files.

Are there guides on YouTube?

Harry Dogerman (tsidia) said : #9

I am new to Ubuntu so I may not recognize some issues and if I do I may not know how to resolve them even if the situation is otherwise easy to get out of. I am grateful for the patience. I suppose running the command with sudo would solve the problem, but I was explicitly told not to do that when looking for the solution on the internet

Harry Dogerman (tsidia) said : #10

Removing the -m part still results in errors. If there were working guides on youtube, I wouldn't be asking in the first place

Many people don’t think of YouTube for guides. It’s a perfectly sensible suggestion even to find out you tried it. Don’t you think?

Harry Dogerman (tsidia) said : #12

 guestmount --add c3c7f9c3-0000-0000-0000-501f00000000.vhdx --ro /home/tsidia/Desktop/Backup results in

libguestfs: trace: set_verbose true
libguestfs: trace: set_verbose = 0
libguestfs: create: flags = 0, handle = 0x55b534a483b0, program = guestmount
guestmount: error: you must specify either -i at least one -m option.
Try `guestmount --help' for more information.
libguestfs: trace: close
libguestfs: closing guestfs handle 0x55b534a483b0 (state 0)

Harry Dogerman (tsidia) said : #13

Yes, I did try youtube for help. I found two videos on the matter. I tried both and run into errors that weren't present in the video

Harry Dogerman (tsidia) said : #15

We have already tried this here, nevertheless:

guestmount --add '/media/tsidia/SP PHD U3/WindowsImageBackup/DESKTOP-HG1003T/Backup 2020-03-22 140135/c3c7f9c3-0000-0000-0000-501f00000000.vhdx' --inspector --ro /home/tsidia/Desktop/Backup

results in

libguestfs: trace: set_verbose true
libguestfs: trace: set_verbose = 0
libguestfs: create: flags = 0, handle = 0x5602d71a23b0, program = guestmount
libguestfs: trace: set_recovery_proc false
libguestfs: trace: set_recovery_proc = 0
libguestfs: trace: add_drive "/media/tsidia/SP PHD U3/WindowsImageBackup/DESKTOP-HG1003T/Backup 2020-03-22 140135/c3c7f9c3-0000-0000-0000-501f00000000.vhdx" "readonly:true"
libguestfs: creating COW overlay to protect original drive content
libguestfs: trace: get_tmpdir
libguestfs: trace: get_tmpdir = "/tmp"
libguestfs: trace: disk_create "/tmp/libguestfsgdVYvs/overlay1.qcow2" "qcow2" -1 "backingfile:/media/tsidia/SP PHD U3/WindowsImageBackup/DESKTOP-HG1003T/Backup 2020-03-22 140135/c3c7f9c3-0000-0000-0000-501f00000000.vhdx"
libguestfs: command: run: qemu-img
libguestfs: command: run: \ create
libguestfs: command: run: \ -f qcow2
libguestfs: command: run: \ -o backing_file=/media/tsidia/SP PHD U3/WindowsImageBackup/DESKTOP-HG1003T/Backup 2020-03-22 140135/c3c7f9c3-0000-0000-0000-501f00000000.vhdx
libguestfs: command: run: \ /tmp/libguestfsgdVYvs/overlay1.qcow2
Formatting '/tmp/libguestfsgdVYvs/overlay1.qcow2', fmt=qcow2 size=127165928448 backing_file=/media/tsidia/SP PHD U3/WindowsImageBackup/DESKTOP-HG1003T/Backup 2020-03-22 140135/c3c7f9c3-0000-0000-0000-501f00000000.vhdx cluster_size=65536 lazy_refcounts=off refcount_bits=16
libguestfs: trace: disk_create = 0
libguestfs: trace: add_drive = 0
libguestfs: trace: launch
libguestfs: trace: version
libguestfs: trace: version = <struct guestfs_version = major: 1, minor: 36, release: 13, extra: , >
libguestfs: trace: get_backend
libguestfs: trace: get_backend = "direct"
libguestfs: launch: program=guestmount
libguestfs: launch: version=1.36.13
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/libguestfsgdVYvs
libguestfs: launch: umask=0022
libguestfs: launch: euid=1000
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-1000/lock
libguestfs: command: run: \ --copy-kernel
libguestfs: command: run: \ -f ext2
libguestfs: command: run: \ --host-cpu x86_64
libguestfs: command: run: \ /usr/lib/x86_64-linux-gnu/guestfs/supermin.d
libguestfs: command: run: \ -o /var/tmp/.guestfs-1000/appliance.d
supermin: version: 5.1.19
supermin: package handler: debian/dpkg
supermin: acquiring lock on /var/tmp/.guestfs-1000/lock
supermin: build: /usr/lib/x86_64-linux-gnu/guestfs/supermin.d
supermin: reading the supermin appliance
supermin: build: visiting /usr/lib/x86_64-linux-gnu/guestfs/supermin.d/base.tar.gz type gzip base image (tar)
supermin: build: visiting /usr/lib/x86_64-linux-gnu/guestfs/supermin.d/daemon.tar.gz type gzip base image (tar)
supermin: build: visiting /usr/lib/x86_64-linux-gnu/guestfs/supermin.d/excludefiles type uncompressed excludefiles
supermin: build: visiting /usr/lib/x86_64-linux-gnu/guestfs/supermin.d/hostfiles type uncompressed hostfiles
supermin: build: visiting /usr/lib/x86_64-linux-gnu/guestfs/supermin.d/init.tar.gz type gzip base image (tar)
supermin: build: visiting /usr/lib/x86_64-linux-gnu/guestfs/supermin.d/packages type uncompressed packages
supermin: build: visiting /usr/lib/x86_64-linux-gnu/guestfs/supermin.d/packages-hfsplus type uncompressed packages
supermin: build: visiting /usr/lib/x86_64-linux-gnu/guestfs/supermin.d/packages-reiserfs type uncompressed packages
supermin: build: visiting /usr/lib/x86_64-linux-gnu/guestfs/supermin.d/packages-xfs type uncompressed packages
supermin: build: visiting /usr/lib/x86_64-linux-gnu/guestfs/supermin.d/udev-rules.tar.gz type gzip base image (tar)
supermin: mapping package names to installed packages
supermin: resolving full list of package dependencies
supermin: build: 213 packages, including dependencies
supermin: build: 9946 files
supermin: build: 6726 files, after matching excludefiles
supermin: build: 6729 files, after adding hostfiles
supermin: build: 6726 files, after removing unreadable files
supermin: build: 6729 files, after munging
supermin: kernel: looking for kernel using environment variables ...
supermin: kernel: looking for kernels in /lib/modules/*/vmlinuz ...
supermin: kernel: looking for kernels in /boot ...
supermin: kernel: kernel version of /boot/vmlinuz-5.3.0-42-generic = 5.3.0-42-generic (from filename)
supermin: kernel: picked modules path /lib/modules/5.3.0-42-generic
supermin: kernel: kernel version of /boot/vmlinuz-5.3.0-28-generic = 5.3.0-28-generic (from content)
supermin: kernel: picked modules path /lib/modules/5.3.0-28-generic
supermin: kernel: picked vmlinuz /boot/vmlinuz-5.3.0-42-generic
supermin: kernel: kernel_version 5.3.0-42-generic
supermin: kernel: modpath /lib/modules/5.3.0-42-generic
cp: cannot open '/boot/vmlinuz-5.3.0-42-generic' for reading: Permission denied
supermin: cp -p '/boot/vmlinuz-5.3.0-42-generic' '/var/tmp/.guestfs-1000/appliance.d.rwaywlbu/kernel': command failed, see earlier errors
libguestfs: error: /usr/bin/supermin exited with error status 1, see debug messages above
libguestfs: trace: launch = -1 (error)
libguestfs: trace: close
libguestfs: closing guestfs handle 0x5602d71a23b0 (state 0)
libguestfs: command: run: rm
libguestfs: command: run: \ -rf /tmp/libguestfsgdVYvs

Manfred Hampl (m-hampl) said : #16

"cp: cannot open '/boot/vmlinuz-5.3.0-42-generic' for reading: Permission denied"

What's the output of the command

ls -l /boot

Launchpad Janitor (janitor) said : #17

This question was expired because it remained in the 'Needs information' state without activity for the last 15 days.