Monday, August 6, 2012

Failed to read NTFS $Bitmap: Input/output error

ERROR:Error mounting /dev/sdb2 at /run/media/user/Study: Command-line `mount -t "ntfs" -o "uhelper=udisks2,nodev,nosuid,uid=1000,gid=1000,dmask=0077,fmask=0177" "/dev/sdb2" "/run/media/user/Study"' exited with non-zero exit status 13: ntfs_attr_pread_i: ntfs_pread failed: Input/output errorFailed to read NTFS $Bitmap: Input/output errorNTFS is either inconsistent, or there is a hardware fault, or it's aSoftRAID/FakeRAID hardware. In the first case run chkdsk /f on Windowsthen reboot into Windows twice. The usage of the /f parameter is veryimportant!...

Friday, July 27, 2012

samba share - ctags: Warning: cannot open source file "directory" : Value too large for defined data type

Reason: Samba share mounted from windows in linux (fedora) may be read-only check in windows by going to properties of folder. Solution: if its marked as read-only, un-check box. fstab: add following lines at end of your /etc/fstab file //server/share_name /path/to/mount/point cifs rw,uid=1000,gid=1000,credentials=/home/user_home/smbcredential_file,dir_mode=0755,file_mode=0755 0 0 details: add your credentials to smbcredentials_file: username=server_username password=server_password ...

Wednesday, July 25, 2012

openGL : Fedora 17 : undefined reference to symbol 'cos@@GLIBC_2.0'

ERROR:gcc wave.o -o wave -I/usr/include -L/usr/lib -lglut -lGL -lGLU -lX11 -m32/usr/bin/ld: wave.o: undefined reference to symbol 'cos@@GLIBC_2.0'/usr/bin/ld: note: 'cos@@GLIBC_2.0' is defined in DSO /lib/libm.so.6 so try adding it to the linker command line/lib/libm.so.6: could not read symbols: Invalid operationcollect2: error: ld returned 1 exit statusSolution:Add '-lm' flag while compiling.gcc wave.o -o wave -I/usr/include -L/usr/lib -lglut -lGL -lm  -lGLU -lX11 -...

Tuesday, July 24, 2012

Sharing using SAMBA on fedora 17

Install SAMBA in fedora 17:$ sudo yum install system-config-samba samba-client samba-common samba system-config-samba system-config-usersSet SElinux permissions:$ sudo yum install policycoreutils-guiin gnome go to Administration > SELinux Management and check (set) the following booleansAllow qemu to share any file/directory read/writeAllow samba to share users home diectory Allow samba to export ntfs/fusersfs volumesConfigure Firewall :check the samba box in System > Administration > FirewallConfigure SAMBA:Adding users: Go...

Monday, July 23, 2012

Installing openGL on Fedora 17

Steps to install openGL on fedora 17: Installing: $sudo yum install freeglut-devel build-essential Compiling sample program: Get sample programs from SAMPLE  PROGRAMMS Makefile: LDFLAGS=-lglut -lGL -lGLU -lX11 -lm INCLUDES=-I/usr/include LIBS=-I/usr/lib CC=gcc SOURCES=wave.c teapot.c logo.c TARGETS=$(SOURCES:.c= ) DEPS= OBJS=$(SOURCES:.c=.o) %.o: %.c $(DEPS) $(CC) -c -o $@ $< $(INCLUDES) $(LIBS) $(LDFLAGS) wave: $(OBJS) $(CC) $@.o -o $@ $(INCLUDES) $(LIBS) $(LDFLAGS) teapot: $(OBJS) ...

Tuesday, April 24, 2012

Grep excluding .svn directories

Temporary/one-time  solution:grep -Rin "what r u looking for" *|grep -v "\.svn/*"     2. Permanent solution (for Ubuntu/Linux) - add following line to ~/.bashrcexport GREP_OPTIONS="--exclude=*\.sv...

Monday, April 16, 2012

Linux Kernel Cross-compilation for ARM based systems

Here is the link for small presentation regarding cross-compilation of Linux kernel for arm based systems. Presentation also includes guide for how to edit existing Linux drivers to adapt to your application.link : Linux Kernel Compilation-...

Sunday, April 8, 2012

Download Youtube Videos on Linux (Behind Proxy)

Install youtube-dlUbuntu: sudo apt-get install youtube-dlFedora: sudo yum -y install youtube-dl Open terminal and export http_proxyexport http_proxy=http://username:passwd@proxy.com:port_num/              ( escape spacial characters in password by '\')Download videosyoutube-dl  --all-formats url-of-vi...