Werk #9207: Fixed issues with connected KVM switches having virtual media support
| Component | checkmk rack |
| Title | Fixed issues with connected KVM switches having virtual media support |
| Date | Mar 2, 2016 |
| Level | Trivial Change |
| Class | Bug Fix |
| Compatibility | Compatible - no manual interaction needed |
| Appliance Version | 1.3.2 |
Fix problems with KVM virtual media SCSI devices. When the rack1 has connected a KVM console which supports virtual media devices, it may happen randomly that the block devices are mixed up (firmware volume becomes sdb instead of sda). This causes a lot of trouble in the appliance software. So we needed to disable the virtual media devices.
Our simple approach to solve this problem is to move the initialization of USB storage devices from the initial ramdisk phase of the boot to the later OS initialization. So the internal disks are initialized as regularly, getting their device names and then after that happened, the USB storage is initialized.