similar to: swapfile on btrfs, temporary solution for wiki

Hello guys, i try to convert ext4 volume, but btrfs-convert show me error: "No valid Btrfs found on file unable to open ctree conversion aborted." Ubuntu 13.04 Kernel: 3.11 btrfs-progs git version 0.20-git20130822~194aa4a13 way to reproduce error: $ truncate -s 4G file $ mkfs.ext4 file #say yes to create fs on non block device. $ btrfs-convert file No valid Btrfs found on file unable

Hi, I wanted to create a new btrfs fs for my backups. When trying to mkfs.btrfs for that device, I''m getting "error checking /dev/loop2 mount status" With strace I see where the problem is: lstat("/dev/disk/by-id/ata-INTEL_SSDSA2M160G2GC_CVPO939201JX160AGN-par", 0x7fffa30b3cf0) = -1 ENOENT (No such file or directory) The problem is there is something missing

Hi, This left me puzzled for a while: 22:29 borg:/ # losetup /dev/loop1 /.B.disk 22:29 borg:/ # mount /dev/loop1 /B mount: /dev/loop1: can''t read superblock 22:29 borg:/ # blkid /dev/loop1 /dev/loop1: UUID="e19fe89b-cde3-4ccc-bc70-b759a57bd1c9" UUID_SUB="f29c6218-d040-4546-a227-4dd2d2142817" TYPE="btrfs" 22:29 borg:/ # losetup -d /dev/loop1 22:29 borg:/ #

Hi ALL, I have a harddisk with 3 primary partitions and one extended partitions. Under extented partions , there are 15 partions. Whole hard disk has been partitioned in a standard way, (i.e NOT LVM) It has 2GB ram. swap is also 2GB. Now I want to extend this swap to 4 GB. If I use dd coomand and create a file with 2GB, Will I be able to extend the swap witn swapon commnad? How can I achive

Does not load. Wondering if this should work or has been moved ? Thanks, Anand -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html

I tried to create some swap files in /dev directory for my desktop. the dd and mkswap were ok. but when I try to swapon it, i get this: # swapon /dev/myswap swapon: /dev/myswap: Invalid argument but when I mv the file to some other directory like /mnt or /, the swapon works. could sb. tell me why? -- Tang Jianwei

Hallo, linux-btrfs, please delete the option "-L" (for labelling) in "mkfs.btrfs", in some configurations it doesn''t work as expected. My usual way: mkfs.btrfs -d raid0 -m raid1 /dev/sdb /dev/sdc /dev/sdd ... One call for some devices. Wenn I add the option "-L mylabel" then each device gets the same label, and therefore some other programs

Hallo, linux-btrfs, First I create an array of 2 disks with mkfs.btrfs -d raid0 -m raid1 /dev/sdb1 /dev/sdd1 and mount it at /srv/MM. Then I fill it with about 1,6 TByte. And then I add /dev/sde1 via btrfs device add /dev/sde1 /srv/MM btrfs filesystem balance /srv/MM (it run about 20 hours) Then I work on it, copy some new files, delete some old files - all works well. Only df

i am looking at using btrfs for a new project and i have a few questions:     * i have heard that as it currently stands Btrfs has some issues to be used as a Lustre file system; is he aware of the issues and any plans to address these and integrate Btrfs in to Lustre     * any plans to support native clustering on Btrfs     * on ZFS the ZIL is a separate device, any plans to implement a the

I''m having some trouble working out how to make the SDL interface for HVM domUs appear. The documentation simply says "it will appear" when you start the domU, but doesn''t state what packages or libraries are needed in order for this magic to happen, or explain how to debug it if it doesn''t happen. All that I''m getting at the moment is a domU (running

Hi What is the general state of btrfs RAID6 as of kernel 3.13-rc1 and the latest btrfs tools? More specifically: - Is it able to correct errors during scrubs? - Is it able to transparently handle disk failures without downtime? - Is it possible to convert btrfs RAID10 to RAID6 without recreating the fs? - Is it possible to add/remove drives to a RAID6 array? Regards, Hans-Kristian -- To

I am running Xen 3.0.1 with Gentoo for Dom0 and when I create a DomU with Debian, the kernel or system does not seem to recognize the volume I have created for swap on the DomU and will not mount it during boot or after. here is the disk section of the xen config for the DomU: disk = [ ''phy:xen-disks/disk-root,hda1,w'',''phy:xen-disks/disk-swap,hda2,w'' ]

Hi list, I am using kernel 3.9.0, btrfs-progs 0.20-rc1-253-g7854c8b. I have a three disk array of level single: # btrfs fi sh Label: none uuid: 2e905f8f-e525-4114-afa6-cce48f77b629 Total devices 3 FS bytes used 3.80TB devid 1 size 2.73TB used 2.25TB path /dev/sdd devid 2 size 2.73TB used 1.55TB path /dev/sdc devid 3 size 2.73TB used 0.00 path /dev/sdb

I''ve just pushed out a new integration branch to my git repo. This is purely bugfix patches -- there are no new features in this issue of the integration branch. I''ve got a stack of about a dozen more patches with new features in them still to go. I''ll be working on those tomorrow. As always, there''s minimal testing involved here, but it does at least compile on

I''m trying to install RHEL 4 on an HVM (Core 2 Duo). However, when the RHEL installer tries to start the kernel, it complains that the CPU doesn''t support extended mode, and that I should use a 32-bit installer. However: hrm@willow:~$ sudo xm info | grep xen_caps xen_caps : xen-3.0-x86_64 hvm-3.0-x86_32 hvm-3.0-x86_32p hvm-3.0-x86_64 Is there some magic I

Hi, I''ve observed a rather strange behaviour while trying to mount two identical copies of the same image to different mount points. Each modification to one image is also performed in the second one. Example: dd if=/dev/sda? of=image1 bs=1M cp image1 image2 mount -o loop image1 m1 mount -o loop image2 m2 touch m2/hello ls -la m1 //will now also include a file calles "hello"

Hello I apologise for sending this in in no particular format, but I do not have "sendbug" on my machine. I have just downloaded openssh-2.3.0p1 for installation on my Slackware 3.4 Linux OS (running on a Compaq Armada 1540DM laptop with a 150 MHz Pentium). As instructed, I also obtained and installed zlib-1.1.3 and openssl-0.9.6. Both unpacked, compiled, and installed without apparent

Hi, my btrfs "hangs" when doing a balance operation. I''m using a 3.7.1 kernel from opensuse: linux-opzz 3.7.1-2.10-m4 #11 SMP PREEMPT Fri Jan 11 18:04:04 CET 2013 x86_64 x86_64 x86_64 GNU/Linux and Btrfs v0.19+ I did a scrub which completed without errors. Then I tried "btrfs filesystem balance /" which work fine for the first 23 of 46 chunks, then ist stopped

Hi, the situation: Label: ''RootFS''  uuid: c87975a0-a575-405e-9890-d3f7f25bbd96     Total devices 2 FS bytes used 284.98GB     devid    2 size 311.82GB used 286.51GB path /dev/sdb3     devid    1 size 897.76GB used 286.51GB path /dev/sda3 RootFS created when sda3 was 897.76GB and sdb3 311.82GB. I have now freed other space on sdb. So I deleted sdb3 and recreated it occupying all

I came across the tidbit that ZFS has a contract guarantee that the data read back will either be correct (the checksum computed over the data read from the disk matches the checksum stored on disk), or you get an I/O error. Obviously, this greatly reduces the probability that the data is invalid. (Particularly when taken in combination with the disk firmware''s own ECC and checksumming.)