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=== Test case 1.A: /home on bcache (no LVM)=== | === Test case 1.A: /home on bcache (no LVM)=== | ||
Once your fresh Fedora 20 system is running, we will "move" /home to a bcache device | Once your fresh Fedora 20 system is running, we will "move" /home to a bcache device. To do this it's convenient to have a minimum amount of data on /home. Do the following steps: | ||
* yum install bcache-tools | |||
* If needed "backup" all data in /home to another place on your root filesystem | |||
* comment /home out in your /etc/fstab | |||
* unmount /home (which is on /dev/sda2) | |||
* Make /dev/sda2 a bcache backing device: make-bcache -B /dev/sda2 | |||
* Make /dev/sdb1 a bcache caching device: make-bcache -C /dev/sdb1 | |||
* Note the set uuid and attach /dev/sdb1 to /dev/sda2: echo <set uuid> > /sys/block/bcache0/bcache/attach | |||
Now you have a bcache device: /dev/bcache0 | |||
* use "bcache-status -s" to see details about your bcache device. | |||
* create a filesystem: mkfs -t ext4 -L HOME /dev/bcache0 | |||
* create a /home entry in your /etc/fstab: LABEL=HOME /home ext4 defaults 1 2 | |||
* mount /home: mount -a | |||
* If needed restore the /home backup you made earlier. | |||
Now you have a system with /home on bcache. | |||
* reboot your system to see if it boots OK. | |||
* do some other testing if you like. Limit the amount of data on /home or accept that it gets lost in the following steps. | |||
=== Test case 1.B: / on bcache (no LVM) === | === Test case 1.B: / on bcache (no LVM) === |