DesasterRecovery

All steps as required:

• Locate bootable Mariux64 USB-Sticks "wtf" and "bka" from 2.3.74, roll cabinet Buczek, top drawer
• Locate EmergencyPasswords from safe in the administrative office
• Prepare mariux64 system bka (router) connected to GNZ uplink.
  • Boot from USB stick "bka"
  • umount data0 from the internal disk is mounted by mxstartup
    • umount /amd/wtf/0
  • cd /root/mariuxinstaller
  • ./install_mariux64.sh sda bka
  • reboot
  • If new hardware:
    • Fix netXX interface assignments.
      • bka host interface should be net00
      • mxrouter interface to vlans should be net03
    • vi /etc/local/mxnet
    • mxrouter expects net02 for the link to wtf for openvpn vlan client traffic. If not available, remove from /etc/local/mxrrouter/MXR.cf.pl
• Prepare mariux64 system wtf (nameserver)
  • Boot from USB stick "wtf"
  • umount data0 from the internal disk is mounted by mxstartup
    • umount /amd/wtf/0
  • cd /root/mariuxinstaller
  • ./install_mariux64.sh sda wtf
  • reboot
  • If new hardware:
    • Fix netXX interface assignments
      • wtf host interface should be net03
    • vi /etc/local/mxnet
  • If needed:
    • Create data1 partition : mkfs.xfs -L data1 /dev/sdb && mxmount
    • copy basic packages from usb stickt:
      • mount /dev/sdc2 /mnt
      • mkdir -p /amd/wtf/1/package
      • cp -a /mnt/pkg_dns /amd/wtf/1/package/dns
      • cp -a /mnt/pkg_nis /amd/wtf/1/package/nis
      • cp -a /mnt/pkg_twiki /amd/wtf/1/package/twiki
• Install other mariux64 systems with either usb stick + Backup recovery
  • See Restore with Proxmox below

Restore with Proxmox

• Notes:
  • Due to the high number of snapshots, commands like mxproxmox client snapshot list may run into timeout. They may succeed if retried because of host block cache. Otherwise use more specific commands like mxproxmox client snapshot list host/prj_admin
  • The groups are named like out pbackup jobs, e.g. host/home_lehrach, host/pkg_nis, host/cfdl_imapsoool2

might run into timeouts

• Use mxproxmox client snapshot list to find snapshot, e.g. mxproxmox client snapshot list host/prj_admin)
• Use mxproxmox client restore to completely restore a snapshot to a given destiantion, e.g. mxproxmox client restore host/prj_admin/2025-02-03T20:37:30Z prj_admin.pxar /amd/afk/1/project/admin`
• Use mxproxmox client catalog shell to browse a snapshot and restore files selectively, e.g. mxproxmox client catalog shell host/prj_admin/2025-02-03T20:37:30Z prj_admin.pxar