CentOS

I wish to remove a device from a simple level 1 raid without leaving a removed device listed as part of the raid. mdadm --grow /dev/md1 -l1 -n3 /dev/sda3 will add a third device to a simple raid. How do I ungrow it back to a n2 or even n1 device? I used to believe that mdadm --grow /dev/md1 -l1 -n2 ...

Kudos to someone who actually knows what I was talking about.

Thanks Homer

Dear Gentle Folk, I thought I knew unix/bash etc. The compound statement USING TCSH! cd /lkjsdf ; source junk.1 completes and then logs me off IF the cd directory does not exist. It works fine if the directory does exist. Why is this and how do I fix it. It doesn't matter what is in junk.1, nothing ...

Thanks for answering. So let me expand the question to Centos 7. Say I update to kernel 200 the day it is available. Then more security patches are added to the kernel by redhat who generates kernel 201. If those patches are 'backported' to kernel 200, since I already have it installed, it won't upd...

We have a few Centos 5.11 machines in operation, and I would like to know how to find out exactly which CVE security notices have been backported to kernel 2.6.18-419.el5 which is the last kernel available for CentOS 5, even though kernel 422 was published by Red Hat because of at least two security...

USB can't power a 12 volt standard sata drive. Need a laptop drive.

Duh.

Homer

Running latest Centos 7 minimal, lenovo laptop, seagate sata drive, with an apricorn SATA to USB adapter

I plug it in and nothing happens, no dmesg, no /dev/sdb shows up, no nothing.

Pointers to RTFM solicited, answers would be great too

Homer

Now I am trying to reinstall windows 10 but it says

The drive where Windows is installed is locked, unlock the drive and try again.

What does that mean?

Dear Gentle Folk, Please direct me to RTFM if possible. I have Lenovo preinstalled laptop with windows 8 upgraded to windows 10 in /dev/sda5 Installed centos 7 successfully in /dev/sd9,10,11 using grub2 and ntfs-3g Boot menu shows Centos7, Windows Recovery /dev/sda3, and Windows 8 /dev/sda5. When I ...

Thanks for the response. The original drives and present trials are all being done by the CentOS 7 rescue disk.

Homer