Technology Insights

Gentoo Server Error: Superblock mount time is in the future

I was working on a Gentoo server today and had another time stamp issue. This may have been related to the one I wrote about yesterday because in addition to that error now I was getting a “Superblock mount time is in the future” error which was saying that the mount time of my drives was in the future. The server would not boot and I had to run a manual fsck every time to get it to boot. Clearly this was not normal behavior so I decided to dig into the problem. I rarely reboot the servers so I never noticed this behavior.

Technology Insights

Basic Linux Part 1: Command-line CD Fu

Alex and I are going to start a series on basic Linux shell commands and all the neat things you can do from the terminal. In my opinion there is a shortage of these type of articles on the internet. We are going to try to cover most every basic task and show how it can be done in the shell with no GUI or Desktop at all.  I am going to start out with this article on cd recording, but we will cover such topics as watching movies in the framebuffer, connecting to wireless via the shell, shell based irc chat clients, mysql commands and many more things. I have no idea how many articles there will be in the series but if anyone has a specific request or question you can always post in our engage question and answer section for a more personalized response.

Technology Insights

How To Install Mount.cifs On CentOS Linux Using Yum

When mounting remote NTFS network shares to a Linux server smbmount used to be used. This command is not used any longer and has been replaced by mount.cifs. If you had previously been using smbmount you should switch to using mount.cifs instead. If you attempt to use smbmount with a newer kernel version you will get the below warning.

WARNING:smbmount is deprecated and not maintained any longer. mount.cifs (mount -t cifs) should be used instead of smbmount.

Technology Insights

Verify a External USB Hard Drive On a CentOS Linux Computer

Recently I had a hard drive crash that was in a Windows XP laptop. The drive would  not mount under Windows however I was able to eventually mount it under Linux and rescue some of the data. In this article I will describe how to verify the USB hard drive enclosure is seen on a CentOS Linux computer and verify that Linux is able to see the USB device and the drive.

First you will want to remove the hard drive from your Windows XP computer and physically mount it into the USB hard drive enclosure. This will involve connecting it inside (IDE or SATA) and then plugging the USB cable or cables into the CentOS server. Since the hard drive is damaged its hard to know if its not reading it or if you have something misconfigured, a loose cable, etc. Below are a couple tips to make sure that the hard drive is being recognized via the USB connection.