Yum – Warning: RPMDB altered outside of yum … killed
Issue: Yum cannot proceed even though the Transaction Testing is passed. but after seeing a message: Warning: RPMDB altered outside of yum then waited for a while, it showed: killed.…
Amazon EC2 Total Connection Lost
Background: Trying to set up another Drupal site on free tier of Amazon cloud, the feeling and setup are all good! After setting up LAMP stack, suddenly received an email…
Migrating Windows Physical Machine to VirtualBox
Background: As more depending on iPad (now iPad mini), few tasks are to be done on my current notebook PC, Acer Aspire 1810Z running Windows 7 Home Premium. Rebuild desktop…
Bootable USB with UNetbootin
Issue: Worked with UNetbootin to make bootable USB to install new OS or rescue OS several times happily, but didn't work anymore for OpenSuse. UNetbootin silently could not successfully Extracting…
Migration Xen to VMware to VirtualBox for Linux
Issue: Xen migrates to VMware Player for the following reasons: its guests are with less interactive control than other virtualization like VMware or Virtualbox, e.g. mouse control, full screen auto-resize,…
unable to set superblock flags
Issue: System hang, then reboot but unable to boot up! system suggested "e2fsck". after fixing/ cleaning some files, "unable to set superblock flags" on /user/local Solution: execute: e2fsck -b 32768…
Solaris boot issue
Issue: sometimes boot process hang in the middle due to previous power down or system hang. Solution: Boot under "Solaris failsafe" run: fsck /dev/rdsk/c0d0s0 reboot to normal multi-user mode
yum quited unexpectedly
Issue: Run: Yum install postgreSQL for SQL-Ledger, but appear: unable to find pid then the shell running yum as root quited unexpectedly Solution: Run: rpm --rebuilddb; yum clean all Tricks:…
Using Scanner
Issue: install application for scanning images in Linux Solution: install sane-backends, xsane, Tricks: also install xsane-gimp if having xsane as a plugin of gimp (instead of ln -s /usr/bin/xsane ~/.gimp*/plug-ins…
Print Problem Firefox
Issue: Can't print using firefox while no such problem appear in other applications like Openoffice, etc. Solution: Modify print command in firefox to "lpr -P [printer_name]" where [printer_name] is the…