How to run radarbox24 feeder on x86

PlaneFinder or Flightradar24 are providing x86 (i386 or x86_64) binaries, Radarbox only provide arm version for raspberry pie.There is request for x86 feeder package in forum but what they released due GPL is just a joke – can’t be compiled without knowing some keys.

I have found that there is rbfeeder docker image for x86 – how is this possible?

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Big XFS filesystem NFS export mount fails with stale nfs handle

If you have big XFS filesystem (with lot of files) and you use inode64 mount option, exporting this file system using NFS may fail when mouting this export on client:

Stale NFS file handle

This error is strange and confusing. Workaround is to specify fsid in /etc/exports for this filesystem.

For more information check this nice blog article https://hpc.uni.lu/blog/2014/xfs-and-inode64/

Snapshoting virtual machine running mysql database

Backup in virtualized enviroment is mostly based on snapshoting entire virtual machine and saving this state to backup repository. This snapshot does not include memory of virtual machine. When you restore virtual machine from this snapshot filesystem is in unclean state, but journal filesystem can handle this. From mysql point of view server crash happended and database can be corrupted and unrecoverable, depending on what queries where running during snapshot. This unpredicted and unconsistent state you don’t want to have as a backup of your data. Continue reading