Operating Systems

OSX 10.9 Upgrade Issue

Issue: Get error message: "This copy of the Install OS X Mavericks application can't be verified. It may have been corrupted or tampered with during downloading." Then it could not…

Continue Reading OSX 10.9 Upgrade Issue

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…

Continue Reading Bootable USB with UNetbootin

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…

Continue Reading unable to set superblock flags

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

Continue Reading Solaris boot issue

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:…

Continue Reading yum quited unexpectedly

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…

Continue Reading Using Scanner

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…

Continue Reading Print Problem Firefox