Jan 142014
 

Sometimes you need to clone partitions on your hard drive for various reasons, hd damaged, creating a RAID 1 or something similar, then it is often tedious and impractical to perform the operation using the normal tools like fdisk, in this case you can use sfdisk.

As reported in the manual:

sfdisk is a non-interactive program to edit the partition table, which is useful for creating scripts. The normal use of this service program involves the preparation of a file containing the instructions on the partitions to be created within a disk specified explicitly. Even if there is a special syntax for these instructions, it may be convenient to use since it is obtained from a query with the same sfdisk, as will be shown.

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Dec 312013
 

Today I present an interesting aritcle on Bad Blocks, first published on http://virtualprivateserver.castlegem.co.uk/

Hardware fails, that is a fact. Nowadays, hard drives are rather reliable, but nevertheless every now and then we will see drives failing or at least having hiccups. Using smartcl/smartd to monitor disks is a good thing, below we will discuss how some lesser issues can be handled without actually having to reboot the system – it is still up to a sys admin’s own discretion to judge circumstances correctly and evaluate whether disk errors encountered are a one time incident or indicative of an entirely failing disk.

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Nov 182013
 

Original article first published in Spanish on http://vidagnu.blogspot.it/

Yesterday I ran into a problem in a SWAP partition on an Astaro Command Center, so I decided to restart with an Ubuntu CD, and my first attempt to repair the system was with the fsck command, but when trying to use it I got the message fsck.swap: command not found

So I check with the badblocks command that the partition had no bad blocks.

sudo badblocks -v /dev/sda2

The above command did not return any error, then searching the Internet I found this simple way to rebuild a damaged swap partition.

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