Author: sotech
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Asus motherboard BIOS update error: CAP file not recognised EFI bios!
If you see the above error – and you’re selecting what you’re sure is the proper CAP file – chances are you’re trying to use a USB disk formatted to NTFS rather than FAT32. Frustratingly, the error message for a corrupt/non-CAP file is the same as the error message you get when you’re trying…
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How to change a user’s password in Mediawiki
If you have a wiki you may need to change a user’s password from time to time; you can do this from the back end quite easily. First, access mysql: mysql -u root -p Log in using your root password. Next, list your databases: show databases; On our test system this…
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esxcli: Update/patch produces “Could not download from depot” error
In ESXi 5.1 you can patch using the following command: esxcli software vib install -d /path/to/patch.zip If you’re getting the following result (using ESXi510-20121001.zip as an example): [MetadataDownloadError] Could not download from depot at zip:/var/log/vmware/ESXi510-201210001.zip?index.xml, skipping ((‘zip:/var/log/vmware/ESXi510-201210001.zip?index.xml’, ”, “Error extracting index.xml from /var/log/vmware/ESXi510-201210001.zip: [Errno 2] No such file or directory: ‘/var/log/vmware/ESXi510-201210001.zip’”)) url…
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Ubuntu: How to create a file or folder using today’s date
This is a useful little trick to use in your scripts – particularly for things like periodic backups. For a file: touch $(date +%F) creates the file 2012-11-18 For a folder, let’s add the time after the date: mkdir $(date +%F-%H:%M) creates the folder 2012-11-18-09:00 We can use…
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How To: Export all mysql databases for backup
This is a handy command for anyone using multiple mysql databases – it produces a single file which you can easily back up to elsewhere. mysqldump -u root -p –all-databases > databasesBackup.sql Note the two hyphens before “all”. This command creates the file databasesBackup.sql which contains the contents of all of your databases.…
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Error Code 60 on an Asus Z9PE-D16
Today a customer’s Asus Z9PE-D16 wouldn’t boot and displayed the debug code 60 – in this case the problem was that the RAM sticks (8 total, 4 for each CPU) were in the black slots rather than the blue slots. Swapping them across resulted in a boot straight away. Hope that helps someone!
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Intel E3-1245 V2 vs. Intel E3-1275 V2
We were asked to spec a customer build the other day who was torn between the above two processors. Here’s our thoughts on them. E3-1245V2: Quad core, 8-thread, 3.4GHz -> 3.8GHz Turbo E3-1275V2: Quad core, 8-thread, 3.5GHz -> 3.9GHz Turbo All other specifications are equal apart from the 100MHz clockspeed difference. At this…
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Folding@Home: How to check your progress
Once you start folding you will want to check on your contribution and see how you’re faring compared to other volunteers – one of the most popular ways of checking your stats is through the Extreme Overclocking website: http://folding.extremeoverclocking.com/ On the left-hand side you can see a name search field; put your username…
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What is Folding @ Home?
Do you leave your computer on 24/7? Want to contribute to research into how diseases like Parkinsons, Huntingtons and some types of cancer occur? Folding @ Home is a distributed computing project which uses people’s spare computer cycles to study the way proteins form in an attempt to understand how that process goes wrong,…
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ZFS: How to change the compression level
By default ZFS uses the lzjb compression algorithm; you can select others when setting compression on a ZFS folder. To try another one do the following: sudo zfs set compression=gzip [zfs dataset] This changes the compression algorithm to gzip. By default this sets it to gzip-6 compression; we can actually specify what level…