A Smackerel of Opinion

Notes and jottings from an ex-Ubuntu Kernel Team Engineer

Thursday, 26 May 2011

GNU EFI lib and Hello World

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Writing UEFI applications takes a little bit of effort to get started, fortunately the GNU EFI library provides enough infrastructure to ma...
1 comment:
Monday, 16 May 2011

Dumping UEFI variables

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UEFI variables in Linux can be found in /sys/firmware/efi/vars on UEFI firmware based machine, however, the raw variable data is in a binary...
1 comment:
Wednesday, 27 April 2011

How much data has been written to your ext4 partitions?

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The ext4 file system has a bunch of per-device /sys entries in /sys/fs/ext4 / that can be used to inspect and change ext4 tuning parameters....
Tuesday, 26 April 2011

lstopo - display a topological map of a system

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The hwloc (hardware locality) package contains the useful tool lstopo. To install use: sudo apt-get install hwloc By default, lstopo wil...
2 comments:
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