HowIFixedIt

HowIFixedIt

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Yum Update Error “PYCURL ERROR 22 – “The requested URL returned error: 404″

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If you get the following errors when running yum update:

http://centos.aol.com/6.3/updates/x86_64/repodata/c89405afba739f4bliuhjlkwt25436345dedty3-filelists.sqlite.bz2: [Errno 14] PYCURL ERROR 22 - "The requested URL returned error: 404"
Trying other mirror.
try to do:
yum clean all
yum update
10-5-2012 3-06-04 PM

Crucial m4 256GB (CT256M4SSD2) Firmware Upgrade Issues Going From 000f to 010G On UEFI Bios and “SSD Power Cycle”

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I recently tried to upgrade my Crucial m4 256GB (CT256M4SSD2) from firmware version 000f (which came pre-flashed on my drive) to 010G which was offered on the Crucial site here:

http://forum.crucial.com/t5/Solid-State-Drives-SSD/Crucial-m4-firmware-010G-is-now-available/td-p/107936

The problem was Crucial doesn’t tell you that the new firmware is not supported on a UEFI Bios fully.  Buried deep under the troubleshooting tips it says if the windows firmware installer doesn’t recognize the drive under a UEFI bios it won’t install the update.

http://edge.crucial.com/firmware/m4/010G/CrucialFirmware_m42-5_010G_WindowsUtility.pdf

“This firmware update tool may not properly operate in PCs, notebooks or tablets with UEFI-based BIOS. We will make an update tool available separately, which will support firmware updates under UEFI (Unified Extensible Firmware Interface).”

However on my system it said it didn’t recognize it but then went and rebooted and tried to install it anyway.  After it flashed the firmware successfully everything seemed fine.   However there have been occasions where the computer won’t boot at all because the drive will no longer be recognized in the BIOS.  To fix this problem i decided to flash the old 000f bios back. The problem is how could i flash it back if the system didn’t even recognize it.   The easy answer would be to attach the drive to a non-UEFI bios system and flash it back to 000f.   You can download the old 000f bios here (http://edge.crucial.com/firmware/m4/000F/Crucialm4_000F.zip).  the other thing you could do is what Crucial calls an “SSD Power Cycle”, here are the instructions:

In most cases, your SSD can be returned to normal operating condition by completing a power cycle. The process will take approximately one hour.We recommend you perform this procedure on a desktop computer because it allows you to only connect the SATA power connection, which improves the odds of the power cycle being successful. However, a USB enclosure with an external power source will also work. Apple and Windows desktop users follow the same steps.


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1. Once you have the drive connected and sitting idle, simply power on the computer and wait for 20 minutes. We recommend that you don’t use the computer during this process.

2. Power the computer down and disconnect the drive for 30 seconds.

3. Repeat steps 1 and 2 at least one more time.

4. Reconnect the drive normally, and boot the computer to your operating system.

5. If the latest firmware has not been updated to your drive, do so. Go to Crucial.com Product Downloads – Firmware Updates for our firmware updates.

A laptop computer will also work, but you’ll have connect the drive and navigate to the systems BIOS menu. (Please refer to your system manufacture’s documentation on how to access the BIOS.) Allowing the drive to sit in the BIOS will improve the odds that the power cycle will work. For laptops, we don’t recommended using a USB enclosure powered via USB. In addition, Apple users must hold the Option key while they power on the system (with the SSD installed). This will boot the Mac to the Startup Manager screen. The Startup Manager screen works like the BIOS screen on a laptop, in that it gives the drive power without any data throughput.

1. Laptop users will need to be in the BIOS menu, or Mac Startup Manager as stated above. The computer will need to stay powered for 20 minutes. We recommend you don’t use the laptop during this process.

2. Power the computer down and disconnect the drive for 30 seconds.

3. Repeat steps 1 and 2 one more time.

4. Reconnect the drive normally, and boot the computer to your operating system.

5. If the latest firmware is has not been updated to your drive, do so. Go to Crucial.com Product Downloads – Firmware Updates for our firmware updates.

 

I was skeptical this would work but ended up working fine.  After following the steps my UEFI bios would recognize the SSD and would boot in fine.    I then downgraded back to 000f and everything is fine.  Once the fully supported firmware for UEFI bios’ comes out i will try it then  Hope this helps someone!

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