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 the GPL and open for contribution from anyone.
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73 views
Is there anything to remember when I exchange my /?
I have a laptop computer with the following setup:
/ on a btrfs /dev/sda3 subvolume @
/home on a btrfs /dev/sda3 subvolume @home
/boot on an ext4 /dev/sda2
/boot/efi on a vfat /dev/sda1
no swap
/tmp ...
3
votes
1answer
623 views
Block-level deduplicating filesystem
I'm looking for a deduplicating copy-on-write filesystem solution for general user data such as /home and backups of it. It should use online/inline/synchronous deduplication at the block-level using ...
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votes
1answer
566 views
btrfs and missing free space
I converted my ext4 partition to btrfs and deleted the save subvolume after doing so. Then I enabled the compression (lzo) of the filessystem in the fstab file and everything is correct so far.
Then ...
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1answer
62 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 ...
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1answer
538 views
How to change btrfs partition label/uuid?
I upgraded to a new harddisk by using dd to copy the partition. As the old disk is still in place, the computer seems to randomly boot one or another.
To fix this I thought, changing the UUID/LABEL of ...
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0answers
826 views
Grub fails to install - core.img 'unusually large'
When trying to resurrect my (t)rusty 'ol router who's system disk (CF card) had failed (probably because I neglected to tune Ubuntu properly for this type of media), I wanted to use the opportunity to ...
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0answers
68 views
Filesystem Label Rename
I'm getting a strange error quark 11 on renaming my filesystems on Ubuntu 12.10 64. I'm sure 100% I've already done it in the past without issues using the disk utility. Maybe some recent upgrade or I ...
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745 views
Errors during start-up: “Scanning for Btrfs filesystems”
I have installed Ubuntu 12.10 desktop on three systems and one virtual machine. On every system I have opted for a single Btrfs partition.
During start-up I get the following two error messages. It ...
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273 views
Ubuntu Server 12.04 start fails after update
I did an system update on Ubuntu Server 12.04, which requested a reboot.
Since that, the system never reaches the login. It hangs on:
mount: mounting /dev on /root/dev failed: No such file or ...
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0answers
382 views
BtrFS deduplication with multiple identical lxc installs upgraded
With lxc and btrfs, you can very easily create a COWed copy of a file or directory structure using cp --reflink or using subvolumes. This can conserve a lot of disk space and make it extremely fast to ...
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80 views
btrfs: not enough free disk space, but device not fully used
I'm using btrfs for my home directory, which spans multiple devices. In total I should have around 7.3TB of space - and that's what df shows, but I ran out of space after using only 5.7TB of data:
# ...
