| Problem | Likely Cause | Solution | |---------|--------------|----------| | ISO won’t boot | Corrupt download | Re-download + verify checksum | | "No eligible devices found" | RAID / SATA mode | Change BIOS SATA to AHCI (not RAID/Intel RST) | | Missing packages during install | DVD ISO used without AppStream | Use full DVD ISO or add AppStream ISO repo | | USB boot fails | Improper dd write | Use cp rhel.iso /dev/sdX or Rufus in DD mode | | Installation hangs at "Starting dracut" | Memory issue | Test RAM; add nomodeset to boot params | | Subscription attach fails | Expired entitlement | Run subscription-manager list --consumed |
Expected output: rhel-9.4-x86_64-dvd.iso: OK
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