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Accessing VMware Guest Virtual Serial Port on Linux Host

In this post I show you how to telnet to an emulated serail port of a VMware guest VM running on a Linux host.

EFI Stub "/etc/os-release missing"

When I updated my Fedora 20 installation today I ran into trouble booting my system using the EFI Stub mechanism even though it booted fine using GRUB. I ended up in the Emergency Shell. Looking at the logs using journalctl, here are the relevant entries (with times and irrelevant entries removed): [ ]: Reached target Switch Root. [ ]: Started Plymouth switch root service. [ ]: Starting Switch Root… [ ]: Not switching root: /sysroot does not seem to be an OS tree. /etc/os-release is missing. …. [ ]: Failed to start Switch Root. [ ]: Startup finished in 211ms

Using EFI Stub to Boot Fedora 20 with BTRFS Root

With Fedora 20, you can now select btrfs for the root filesystem type. As you are probably aware by now, btrfs is a new copy on write filesystem for Linux aimed at implementing advanced features while focusing on fault tolerance, repair and easy administration. Initially developed by Oracle, btrfs is licensed under GPL. Btrfs has been available in earlier versions of Fedora. Prior to Fedora 15, btrfs needed a special boot parameter; after Fedora 15 no special boot parameter was needed. I like to use the EFI Stub method of booting Fedora because it eliminates the need for GRUB2 or

Some Ext4 Filesystems Cannot Be Converted to Btrfs

Not all ext4 filesystems can be converted to a btrfs filesystem using the btrfs-convert utility. Btrfs has some limitations. The mkfs.btrfs utility will complain if you try to create a fileystem that is less than 256Mb. Btrfs-convert used fail when a file had more than 244 hard links associated with it but that limitation is long gone. I hit another limitation recently when I tried to convert a 477Mb ext4 filesystem to btrfs. Btrfs-convert failed with a message of: block size is too small For some reason this Oracle document states that you cannot convert an ext4 /boot filesytem to

Exploring PackageKit's GNOME Software

This post explores the underbelly of the new GNOME Software application installer and updater tool.