What were you trying to do that didn't work?

Failed to get the file created under /tmp in virt-rescue steps 

What is the impact of this issue to you?

Please provide the package NVR for which the bug is seen:

libguestfs-1.56.0-1.el10.1.x86_64

kernel-6.12.0-95.el10.x86_64

libguestfs-fssupport-10.1-3.el10.x86_64

How reproducible is this bug?:

100%

Steps to reproduce

1. Prepare a btrfs image:

#GSTEST_image_path=/home/images/esx8.0-sles12sp5-x86_64-with-btrfs-sda.raw 

#mount_point="$(virt-rescue --suggest -a $GSTEST_image_path |awk '/\/sysroot\/$/{print $2}')"

#echo $mount_point 
/dev/sda2

#virt-rescue -a $GSTEST_image_path
><rescue> mount /dev/sda2 /sysroot
><rescue> cd /sysroot/
><rescue> ls -l
total 0
drwxr-xr-x 1 root root 1786 May 21 22:58 bin
drwxr-xr-x 1 root root  612 May 22 08:09 boot
drwxr-xr-x 1 root root    0 May 21 22:53 dev
drwxr-xr-x 1 root root 5130 May 26 15:25 etc
drwxr-xr-x 1 root root    0 May 21 22:53 home
drwxr-xr-x 1 root root 3136 May 21 23:01 lib
drwxr-xr-x 1 root root 4812 May 21 22:57 lib64
drwxr-xr-x 1 root root    0 Jun 27  2017 mnt
drwxr-xr-x 1 root root    0 May 21 22:53 opt
drwxr-xr-x 1 root root    0 May 21 22:53 proc
drwx------ 1 root root  222 May 22 08:21 root
drwxr-xr-x 1 root root   16 May 22 08:08 run
drwxr-xr-x 1 root root 5152 May 22 08:08 sbin
drwxr-xr-x 1 root root    0 Jun 27  2017 selinux
drwxr-xr-x 1 root root    0 May 21 22:53 srv
drwxr-xr-x 1 root root    0 May 21 22:53 sys
drwxr-xr-x 1 root root    0 May 21 22:53 tmp
drwxr-xr-x 1 root root  130 May 21 22:53 usr
drwxr-xr-x 1 root root  124 May 21 23:02 var
><rescue> echo 'virt-rescue' > tmp/virt-rescue.txt
><rescue> cat tmp/virt-rescue.txt
virt-rescue
><rescue> exit
exit

virt-rescue: Syncing the disk now before exiting ...

Rebooting.
[  259.285235] reboot: Restarting system

#output=`virt-cat -a $GSTEST_image_path /tmp/virt-rescue.txt`
libguestfs: error: download: /tmp/virt-rescue.txt: No such file or directory

Expected results

Should virt-cat the file content prepared in virt-rescue steps.

RHEL10.1 works fine.

Actual results

As above.