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  1. RHEL
  2. RHEL-59866

grub2-probe: error: failed to get canonical path of `overlay' in bootc image

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      What were you trying to do that didn't work?
      grub2-mkconfig test failed in RHEL-9.4 bootc images.

      bash-5.1# grub2-mkconfig -o /tmp/grub.cfg --no-grubenv-update
/usr/sbin/grub2-probe: error: failed to get canonical path of `overlay'.
bash-5.1# rpm -qf /sbin/grub2-mkconfig
grub2-tools-2.06-80.el9_4.x86_64
bash-5.1# cat /proc/cmdline
BOOT_IMAGE=(hd0,gpt3)/boot/ostree/default-be2b52828e876ef0a05c25ae376b89a62d0993602198981aebbd745cbb7486a3/vmlinuz-5.14.0-427.31.1.el9_4.x86_64 root=UUID=c81c5040-dac2-4a7a-a1a4-cdf5baa51183 rw boot=UUID=efce9f9c-45ae-4bfc-89b1-f9ad0aae8ac7 rw console=tty0 console=ttyS0 console=ttyS0,115200n8 net.ifnames=0 nvme_core.io_timeout=4294967295 ostree=/ostree/boot.0/default/be2b52828e876ef0a05c25ae376b89a62d0993602198981aebbd745cbb7486a3/0 crashkernel=1G-4G:192M,4G-64G:256M,64G-:512M
bash-5.1# df -h
Filesystem      Size  Used Avail Use% Mounted on
devtmpfs        4.0M     0  4.0M   0% /dev
tmpfs            16G   84K   16G   1% /dev/shm
tmpfs           6.2G  768K  6.2G   1% /run
/dev/nvme0n1p4  999G   34G  966G   4% /sysroot
overlay          33M   33M     0 100% /
tmpfs            16G  8.0K   16G   1% /tmp
/dev/nvme0n1p3  974M   62M  845M   7% /boot
/dev/nvme0n1p2  501M  7.1M  494M   2% /boot/efi
tmpfs           3.1G     0  3.1G   0% /run/user/1000
bash-5.1# lsblk
NAME        MAJ:MIN RM   SIZE RO TYPE MOUNTPOINTS
loop0         7:0    0  32.9M  1 loop
zram0       252:0    0     8G  0 disk [SWAP]
nvme1n1     259:0    0 232.8G  0 disk
nvme0n1     259:1    0  1000G  0 disk
├─nvme0n1p1 259:2    0     1M  0 part
├─nvme0n1p2 259:3    0   501M  0 part /boot/efi
├─nvme0n1p3 259:4    0     1G  0 part /boot
└─nvme0n1p4 259:5    0 998.5G  0 part /var
                                      /sysroot/ostree/deploy/default/var
                                      /etc
                                      /sysroot

      Please provide the package NVR for which bug is seen:
      5.14.0-427.31.1.el9_4.x86_64
      How reproducible:
      Steps to reproduce
      start a RHEL-9.4 bootc image
      check whether grub2-mkconfig can generate config successfully
      Expected results
      If grub2-tools supports image mode, grub2-mkconfig should be able to generate config successfully.
      If grub2-tools does not support image mode, better to return with not support msg.
      Actual results
      grub2-mkconfig reports failure

        1. os_tests.tests.test_general_test.TestGeneralTest.test_grub2_mkconfig.debug
          14 kB

              bootloader-eng-team bootloader -eng-team
              xiliang@redhat.com Frank Liang
              bootloader -eng-team bootloader -eng-team
              Release Test Team Release Test Team
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                Created:
                Updated: