![]() To solve this, simply get your pool "coherent" and do not mix products. This occurs when you mix products, for instance adding a XenServer/Citrix Hypervisor host to an XCP-ng pool, or vice versa. You may get this error when attempting to add a new host to an existing pool. # Host and Pool have incompatible Licenses # Cause This just restarts the management services, all running VMs are untouched. Restart toolstack on CLI with the command xe-toolstack-restart. The XAPI database thinks that the VM is On / Off. Here is an example of dracut command on a 8.2 host: dracut -f /boot/initrd-4.19.0+1.img 4.19.0+1 ![]() Rebuild the initrd with dracut -f /boot/initrd-.img.Boot on the fallback kernel (last entry in grub menu).# CauseĬan be a yum update process interrupted while rebuilding the initrd, such as a manual reboot of the host before the post-install scriplets have finished executing. # Initrd is missing after an update # SymptomĪfter an update, XCP-ng won't boot and file /boot/initrd-4.19.0+1.img is missing. Usually, when you install a recent distro in PVHVM (using other media) and you get a blank screen, try blacklisting by adding the following in your grub command at the end Blacklisting (Source: (opens new window)).# Solution (draft! has to be tested/validated) press ALT + right Arrow to switch to next console.You see a blank console because of driver related issues. # Common Problems # Blank screen (on a Linux VM) # Cause This will produce either ivrs.dsl, rmad.dsl or dmar.dsl. ] & echo "DMAR" | dd of =rmad.dat bs = 1 count = 4 conv =notrunc To help someone else identify an issue or reproduce a bug, you can generate a full status report containing all log files, details about your configuration and more. In case of a host crash, if it is kernel-related, you should find logs in /var/crash # Produce a status report # Kernel messagesįor hardware related issues or system crashes.Īll kernel logs since last boot: type dmesg. coalescing snapshots)Ĭontains the output of the storage manager. # XAPI's logĬontains the output of the XAPI toolstack. Examples: output of xenopsd which handles the communication with the VMs, of executables involved in live migration and storage motion, and more. Output of various running daemons involved in XCP-ng's tasks. XCP-ng does not use journald for logs, so everything is in /var/log directly. On a XCP-ng host, like in most Linux/UNIX systems, the logs are located in /var/log. The main log file is /var/log/installer/install-log. The installer writes in /var/log/installer/. The target installation partition is mounted in /tmp/root. When asking for help about installation errors, providing this file increases your chances of getting precise answers. They can be read with view /tmp/install-log. You can reach a shell with ALT+F2 (or ALT+RIGHT) and a logs console with ALT+F3 (or ALT+RIGHT twice).įull installation log are populated in real time in /tmp/install-log. If any of the above allows to work around your issue, please let us know ( github issues (opens new window)). Kernel parameters are between /boot/vmlinuz and the next. Xen parameters are between /boot/xen.gz and the next. On BIOS mode, you can enter a menu by typing menu and then modify the boot entries with the TAB key.Xen parameters are on lines starting with multiboot2 /boot/xen.gz and kernel parameters on lines starting with module2 /boot/vmlinuz. On UEFI mode, you can edit the grub entries with e.How to add or remove boot parameters from command line. Try to boot with the iommu=0 xen parameter.First of all check the integrity of the ISO image you downloaded, using the provided checksum.(Where "upgrade" here designates an upgrade using the installation ISO) # If the installer starts booting up then crashes or hangs If you have subscribed to Pro support (opens new window), well, don't hesitate to use it! # Installation and upgrade And we are therefore officially proud of you! ❤️.Share your solution ( forum (opens new window), wiki (opens new window)) - others can benefit from your experience.☑️ What did you exactly do to expose the bug?.Get help at our Forum (opens new window) or get help at IRC #xcp-ng on Freenode (opens new window) and provide as much information as you can:.Community support (mostly on XCP-ng Forum (opens new window)).If you have a problem on XCP-ng, there's 2 options:
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