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For me, I prefer using sar if that's installed on your system, and if it's not, install it. On CentOS, it should be th package sysstat. For every given interval, it tells you what your processor is doing. Here's some example output: 07:10:35 AM CPU %user %nice %system %iowait %steal %idle 07:10:36 AM all 0.06 0.00 0....


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What's the drive's exact model? Do you hear any abnormal sounds? I'd try the drive on a Windows system and see if it's detected in the BIOS, Device Manager or Disk Management and how (screenshots would be useful). I'd also try running WD Data Lifeguard Diagnostic tool and see if it recognizes the drive. If it does I'd see if the drive passes both the quick ...


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The problem with these answers is that they do not address the underlying problem - when Windows is installed, it scans all drives on the system and 'litters' qualifying drives with 'Recycle' folders and other Microsoft OS what-nots, that Grub then takes to be an existing M$ OS. Including the "GRUB_DISABLE_OS_PROBER=true" line will prevent ALL other ...



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