Karl Cordes -

How to flash coreboot on Lenovo X220
Fri, Dec 16, 2016

How to flash coreboot on Lenovo X220

Fri, Dec 16, 2016 - 2200 Words

Intro Laptops are regressing. 2016’s laptops are thinner and sleeker than last year’s - but this usually comes at the cost of user servicability. Internal batteries are hard to swap out, RAM is soldered to the motherboard. If you want to upgrade any single component, you’re going to need to buy a new laptop. The Lenovo X220 are great little machines from 2011 that still have plenty of life left in them.
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Configure a ZFS mirror on Ubuntu 16.04
Sun, May 1, 2016

Configure a ZFS mirror on Ubuntu 16.04

Sun, May 1, 2016 - 300 Words

Very rough notes on setting up ZFS on Ubuntu 16.04 - with LXD sudo apt-get install zfsutils-linux dmesg | grep -i sata | grep 'link up' [ 6.208581] ata1: SATA link up 6.0 Gbps (SStatus 133 SControl 300) [ 6.896647] ata2: SATA link up 6.0 Gbps (SStatus 133 SControl 300) [ 7.216674] ata3: SATA link up 3.0 Gbps (SStatus 123 SControl 300) k@sagan:~$ sudo zpool create apollo mirror /dev/sdb /dev/sdc invalid vdev specification use '-f' to override the following errors: /dev/sdb does not contain an EFI label but it may contain partition information in the MBR.
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Root Nook Glowlight plus and install Safari Queue
Tue, Feb 16, 2016

Root Nook Glowlight plus and install Safari Queue

Tue, Feb 16, 2016 - 500 Words

Update: May 23 2016 My Rooted nook locked up and refused to boot properly. I managed to restore it to factory defaults but the screen had permanent distortion. I returned the Nook to B&N for a replacement. Which is running the stock software. An E-ink Android device has been on my wish list for a while, but until yesterday I hadn’t seen any high quality examples. The Nook Glowlight Plus looks great, feels sturdy and runs Android, so I picked one up.
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Creating RAID 1 MDADM on an existing Ubuntu install
Sat, Aug 23, 2014

Creating RAID 1 MDADM on an existing Ubuntu install

Sat, Aug 23, 2014 - 400 Words

Remove all the old partions on the disks sudo parted select /dev/sda rm 1 rm 2 select /dev/sdb sudo mkfs.ext4 /dev/sd[a-d]1 #Setup MDADM sudo mdadm –create –verbose /dev/md0 –level=mirror –raid-devices=2 /dev/sda1 /dev/sdb1 karlcordes@spacex:~$ sudo mdadm –create –verbose /dev/md0 –level=mirror –raid-devices=2 /dev/sda1 /dev/sdb1 mdadm: /dev/sda1 appears to contain an ext2fs file system size=1953513472K mtime=Thu Jan 1 10:00:00 1970 mdadm: Note: this array has metadata at the start and may not be suitable as a boot device.
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