How to check CPU&memory loading under ubuntu

How to check CPU&memory loading under ubuntu

Memory
#free -m

CPU
#top

Or install sw
#sudo apt-get install htop
#htop

Missing libraries in Ubuntu when running burnin test

Missing libraries in Ubuntu when running burnin test


System have to connect to Internet

#sudo apt-get install libqt5opengl5 libqt5printsupport5 libcurl4

Simple dd command to test HDD read/write performance under linux

Simple dd command to test HDD read/write performance under linux    2021/02/22 update

Read

#dd oflag=direct if=/dev/zero of=/mnt/test bs=512k count=20000

Write

#dd iflag=direct if=/mnt/test of=/dev/null bs=512k count=20000

If you want to test different disk, you can mount /mnt to diffect /dev/sdx

#mkfs -t ext4 /dev/sdb1

#mount /dev/sdb1 /mnt

How to fix /lib64/libc.so.6: version `GLIBC_2.15' not found

How to fix  /lib64/libc.so.6: version `GLIBC_2.15' not found

1.
wget https://ftp.gnu.org/gnu/glibc/glibc-2.15.tar.gz

2.

# tar -zxvf glibc-2.15.tar.gz

# cd glibc-2.15

# mkdir build;

# cd build

# ../configure --prefix=/usr --disable-profile --enable-add-ons --with-headers=/usr/include --with-binutils=/usr/bin

# make -j 8

# make install

How to install/uninstall/launch LSI/Avago MSM utility under Linux

How to install/uninstall/launch LSI/Avago MSM utility under Linux

install
#./install.csh -a

launch
# cd /user/local/MegaRAID Storage Manager
#./startupui.sh


Uninstall
# cd /user/local/MegaRAID Storage Manager
#./uninstaller.sh