I have 60GB SSD OCZ disk and a 2TB HDD WD disk. I want to install the latest stable release of openSuSE using the SSD as cache of the HDD. From the three different cache solutions (bcache,dm-cache,Flashcache) I think the best option is dm-cache because it is supported from the LVM. As I have seen in order to cache using LVM you have to create a Volume Group which will include the SSD and the HDD and from there using some commands(I don’t care for the commands for now but for the concepts) to create a Logical Volume that will be the main disk that I will use. Not a physical disk of course but a logical one. But here starts my confusion:
1)Can I use fstrim command on the SSD if it is part of a Logical Volume?
2)Can I create a swap partion (or volume I don’t which is the right word ) that will be also cached? I know that the swap partition has a different filesystem from a normal partition.
3)In Intel Smart Response Technology the SSD that will play the cache role has to be without any filesystem. Do I need a filesystem to use SSD as cache?
4) Is it better not use the SSD as cache but just to mount the /usr/lib directory and/or /boot directory?


Source: forum


after Tumbleweed update, openSUSE-release-20150909-1.2.x86_64, all entries in the
-Application Launcher –Applications menu were lost,
the only way found to re-active them was a forced re-install of :-

<> kdelibs4-4.14.10-1.1.x86_64
<> kservice-5.13.0-1.1.x86_64
<> plasma5-pa-5.4.0-1.1.x86_64


Source: forum

The following are the details of the USB through ‘parted’:


# parted /dev/sdb
GNU Parted 2.4
Using /dev/sdb
Welcome to GNU Parted! Type 'help' to view a list of commands.

(parted) print                                                           
Disk /dev/sdb: 518MB
Sector size (logical/physical): 512B/512B
Partition Table: msdos

Number  Start  End    Size    Type    File system  Flags
 1      32.3kB  411MB  411MB  primary  fat16        type=06
 2      411MB  510MB  98.7MB  primary  fat16        hidden, type=16

I want to remove the hidden flag, remove the two partitions and create a new, single partition. If I try any of these, or attempt to rewrite the partition table, etc, it just gives the error:


Error: Input/output error during write on /dev/sdb

Some history on this device:
The second partition used to be an encrypted partition that I had messed up as a little kid. I do not remember what I did to it though. I am attempting to recover it now.

Can someone help me out?


Source: forum

For a very long time now (years) through several generations of OS, I have noticed a rather irritating behaviour of my USB mouse. Currently I am running OpenSuse 13.2 (64-bit) with Gnome 3.14.2, but the issue is not new to this version.

The behaviour in question is that the mouse begins to double-click spontaneously, at random, after sometimes after weeks of apparently ‘normal’ behaviour. Of course, firstly, I played around with the mouse parameters under the Gnome ‘Mouse and Touchpad’ utility. That provided no evident relief. I thought that before I raise the question in the forum, I had better suspect my mouse hardware. But even when I used another USB mouse, it started to happen after a while. Recently, I became so irritated with this behaviour, I went an bought a brand new one. And it happens with that as well, irrespective of whether the double-click setting is fully fast or fully slow, or anywhere in between.

My conclusion: there is something wrong with the mouse ‘driver’ software! I wonder if anyone else can concur with me on this rather elusive, but exceedingly irritating, point?:


Source: forum