[Libguestfs] Re: Can't boot UEFI VM after migration: "error: can't find command `linux16`"

Hi I am trying to solve this above issue. The problem happens when we convert RHEL 7.9 VMware VM using virt-v2v to KVM (not limited to RHEL 7.9). These are the steps 1. Create a RHEL7.9 VM in vmware

2. Boot the VM in VMware, and change the /etc/fstab to have /dev/sda* instead of FS partition UUID where initramfs and vmlinuz are to be found.

3. Power down the VM 4. Use virt-v2v to convert the VM - successfully done 5. If we try to boot the converted VM, the error messages show up error: can't find command linux16 error: can't find command initrd16 While debugging the problem - I localized the source which in my understanding could be problematic In File virt-v2v/convert/convert_linux.ml Line Number ~1265 if String.starts_with "/files/etc/crypttab" path && String.starts_with "/dev/sd" value then ( try let uuid = g#vfs_uuid value in "UUID=" ^ uuid with ex -> warning (f_"failed to translate encrypted device name %s to a UUID \ in /etc/crypttab. This may prevent the guest from booting \ after conversion. You may have to manually change the file and \ reconvert. The original error was: %s") value (Printexc.to_string ex); adjusted_dev ) else adjusted_dev

This is from function remap_block_devices, while it checks for /etc/crypttab and device file, and determines the UUID of the device file, it does not seem to consider /etc/fstab entries for similar exercise. This seems to be related to the problem at hand.