0
votes
1answer
75 views

How to reformat my SD card?

I have a micro SD card (/dev/mmcblk0) with one partition on it (/dev/mmcblk0p1). There is a btrfs filesystem on it, that won't mount. When I insert it, I get an error message on the desktop, saying: ...
2
votes
1answer
365 views

Why is btrfs slower than ext4, and why would I want to use it in an ubuntu install? [closed]

At this time (August 2014); having been following the benchmarks for btrfs on Phoronix,(http://www.phoronix.com/scan.php?page=home) and have been seeing on the aggregate; slower performance than ext4; ...
0
votes
0answers
33 views

Recover a mbox file from a overwritten btrfs partition

I had 14.04 on a hard drive using btrfs as the file system. One morning, the file system randomly failed and I couldn't boot into it anymore. I loaded up a live CD and extracted all the files I needed ...
0
votes
0answers
36 views

Install on a large btrfs partition with two sub volumes

I have a computer with a large btrfs partition containing two sub volumes / and /home. They are both compressed. There's also a separate swap partition. the /home partition has data on it and I hoping ...
0
votes
0answers
215 views

How to install ubuntu to a already encrypted partiton without formatting it in 14.04

Ubuntu killed the alternative installer buuuuuuh!! I am not sure but I think this was possible before with it. As far as I understand it the installer actually recreates a encrypted volume even if ...
0
votes
0answers
323 views

btrFS RAID5/6 Understanding space usage and usability

Im currently thinking about experimenting with btrfs with my workload in place of ext4. Right now I have a few drives on order. I want to setup btrfs on the first drive and slowly expand the FS ...
0
votes
0answers
389 views

Problem with booting Ubuntu 14.04 from a btrfs partition

I have installed Windows 8.1 Update 1. After that I have installed Ubuntu 14.04 on a btrfs partition. However, after the restart there was no GRUB menu to choose from and the system booted directly to ...
0
votes
1answer
406 views

btrfs - did I just turn RAID1 into RAID10?

I set up a btrfs partition using two 3 TB drives in RAID 1: $ mkfs.btrfs -m raid1 -d raid1 /dev/sdd /dev/sde $ mount /dev/sdd /media/media Copied a bunch of data onto the partition, with the ...
0
votes
1answer
904 views

Installing Ubuntu on btrfs over multiple drives

When I installed Ubuntu 13.04, I managed to combine a couple of outdated askubuntu answers, as well as some of the btrfs documentation in order to figure out how to install Ubuntu over two SSDs using ...
2
votes
2answers
1k views

How can I install Ubuntu Saucy Server with BTRFS?

So, a week ago I installed the latest beta version of Ubuntu Saucy Server in a MacMini using BTRFS as only partition to mount / on it (I know it's not recommended to do this, but it's not the point ...
0
votes
2answers
425 views

Why does Ubuntu create a @home directory on home partition?

I want several Linux distros to share the same home/data partition, each having a unique user name and implicitly a separate home directory. I installed Debian Wheezy, and formatted this partition as ...
0
votes
1answer
202 views

Can I Recover The Files in the Directory /usr from a btrfs Snapshot?

Some time ago, I moved the folder /usr to its own partition. Before this it had lived in the / partition which has a btrfs filesystem. Accidentally, I formatted my /usr partition from my Windows XP ...
2
votes
1answer
2k views

Converting to btrfs from md raid5 with lvm

I have decided to start the transition to btrfs this weekend. I have a desktop with one md raid1 which is used for boot, and one large md raid5 for everything else. On top of the md raid5, I have LVM ...
1
vote
1answer
685 views

How can I move a btrfs partition? (after resizing it)

Is it possible to move a btrfs partition (after I shrinked it)? (e.g. as described in How can I safely resize (shrink) a BTRFS partition?) I need this to grow the partition before the btrf partition. ...
11
votes
3answers
11k views

Should I use btrfs or Ext4 for my SSD?

Should I use btrfs (with discard, compress=lzo and space_cache options) or Ext4 (with discard option) for the SSD for my Ubuntu 11.10 (Oneiric) amd64 desktop root partition of my office machine? ...
12
votes
2answers
3k views

btrfs partition won't mount after upgrading 64bit Ubuntu 11.10 laptop

I have tried many ideas from the net, but none of them work. This looks correct and in good order **sudo btrfs filesystem show /dev/sda2** failed to read /dev/sr0 Label: none uuid: ...
2
votes
2answers
334 views

How to remove subvol from partition?

I installed Natty 64-bit with btrfs filesystem only to find that it takes almost two minutes to boot. I tried a few different things, and finally today opened up /etc/fstab only to find the ...
1
vote
3answers
1k views

Using btrfs in RAID arrays and partitioning

Probably stupid questions but here goes: Can btrfs use only a portion of a HDD in a raid "array"? I have 3 HDDs: 80GB, 160GB, and 200GB external USB. I want to put root+boot in the first 20GB of the ...
5
votes
1answer
3k views

What is the best way to partition, and what is the best file-system for a new Hard Disk? [duplicate]

Possible Duplicate: What's your recommendation on drive partitioning schemes for a desktop and home server? Is Btrfs in Maverick considered stable? Bonus: What is the "best" filesystem ...