Saturday, April 20, 2013

How can I mount a disk I unmounted on my Mac?

Q. I ejected one of my hard drives by accident and when I tried to mount it again, it says "Mount failed. Try running first aid on the disk and then retry mounting. I ran first aid (both verify and repair disk) and that failed as well. It's an almost new disk with all my most important files (of course). The recommended action by First Aid is to erase and reformat.

A. If you're familiar with the Terminal application you could try getting the drive mounted via the command line. The programs you'll likely need are "fsck" to make sure the partition is clean and "mount" to actually mount the partition. Unfortunately those tools have a bit of a learning curve if you don't have any UNIX/Linux background.

Another option is other GUI-based disk/mount utilities. "Mount Me!" has worked for some people but I haven't had a need for it personally.

My computer memory is split in to two drives on linux, How to utilize it?
Q. I'm not very pro-efficient at using Linux yet. My laptop has 320GB of memory but on this partition I only have 90GB or less. How to open the other partition or make use of the rest of my memory?

A. Your drive is split into partitions, your memory isn't split.

Just make a mount point and mount the other partition.

Is there a linux program that would allow you to copy video games?
Q. Im new to Linux, and a saw some cd and dvd rippimg programs. I was wondering if there is one for video games. Or would a dvd/r ripper work to?

Yes, I is noob!

A. Linux is a Unix derivative, so among the things -- call them cultural -- you are unlikely to have looked at is the preference for using several small programs rather than one large one for doing tasks. Thus, the program k3b mentioned above, while I use it, is what is called a mashup which provides a GUI for several command line programs (which I also use when relevant) and which -- philosophically -- should be able to copy anything, even if it runs on a radically different architecture.

Insert your disk and open an xterm. Close any program which wants to open -- OR MOUNT -- your disk automatically and unmount it if it was mounted.

type "dd if=/dev/hdc of=<myfile.iso>" /dev/hdc is a standin for your cdrom or dvd in the /dev directory and <myfile.iso> is a standin for whatever you choose to call the file, but if it's from a computer cd or dvd name it iso.

Check to see you got a true copy of the image. Do a "md5sum /dev/hdc && md5sum <myfile.iso>" That generates a hash number twice (the && means run a separate command) and if the two hash numbers agree then you have a true byte copy image.

Then burn the iso image to disk.

It's not that hard.



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