2024 Btrfs move root to subvolume

Btrfs move root to subvolume

Author: ebko

August undefined, 2024

WebThe examples below assume that the btrfs subvolume containing home and rootfs is mounted at /mnt/btr_pool. This is usually the btrfs root subvolume, which always has subvolid=5. Mounting subvolid=5 is recommended (mandatory for btrbk < v0.32.0) if you want to backup your root filesystem /. /etc/fstab: WebOct 2, 2024 · Migrating BTRFS Subvolumes locally This post will focus on moving a BTRFS file system from loopback file to a mounted BTRFS subvolume on a local file system. The Scenario A server has BTRFS as it's root file system and is being used with systemd-nspawn.

Btrfs/System Root Guide - Gentoo Wiki

Webbtrfs property set -ts /path/to/snapshot ro false Change that to true to set it to read-only. You can also use list to see the available properties: btrfs property list -ts /path/to/snapshot ro Set/get read-only flag of subvolume. -t specifies the type of object to work on, s … WebThis uses the find command to run the btrfs defragmenter on every file in the root filesystem (given by the slash right after the "find" command at the beginning). If you have other subvolumes, you can use it again with the path of a subvolume (I have one at /home, for example) instead of the single slash. onrust in suriname

Chapter 14. Creating and Maintaining Snapshots with Snapper

WebMay 14, 2024 · /subvol/var is here presumably created inside the mounted @ and hence its path relative to the btrfs root (subvolid=5) would be @/subvol/var, instructions below are based on this assumption. So you probably either want to move the subvolume to /@var, via something like WebThis happens since fb235dc06fac ("btrfs: qgroup: Move half of the qgroup accounting time out of commit trans"), kernel may lockup with quota enabled. There is one backref trace triggered by snapshot dropping along with write operation in the source subvolume. onrush studio

Working with Btrfs - Subvolumes - Fedora Magazine

[SOLVED] BTRFS root subvolume + GRUB UEFI - Arch Linux

WebJan 22, 2024 · Switch to root user and umount all devices other than the BTRFS partition: sudo -i umount /target/boot/efi umount -l /target/run umount /target/cdrom If you have other mount points (i.e. /home) umount them too. Create @ subvolume and move all files into it: cd /target btrfs subvolume create @ ls grep -v @ xargs mv -t @ WebA btrfs snapshot is a subvolume, they can be stored anywhere you like. Toplevel makes it simpler to maintain, but there is no "correct" way. I suggest reading the Arch Wiki btrfs article, it's a really good summary on btrfs in general, including snapshots. More posts you may like r/linuxmasterrace Join • 4 yr. ago onrush multiplayerWebHow to subvolume a btrfs root partition after installation? : r/archlinux My guess would be: load an arch live cd mount /dev/sda2 on to /mnt create subvolumes (btrfs subvolume … onrush near miss

"WebThis would potentially make it a little easier to change distributions later if I wanted to while preserving important data and save some space on the main boot drive. Is it sufficient to: Mount the second drive somewhere Create new subvolume on second drive copy/move file from \@home to new subvolume " - Btrfs move root to subvolume

Btrfs move root to subvolume

r/btrfs on Reddit: Symlink or mount subvolumes for personal folders ...

WebThe root / of the file system has been installed in a subvolume /@" and not the root of the btrfs partition / A snapshot is treated like just another subvolume except that they are read-only You can easily boot into your read-only snapshots … WebProcedure 14.1. Creating a Snapper Configuration File. Create or choose either: A thinly-provisioned logical volume with a Red Hat supported file system on top of it, or. A Btrfs subvolume. Mount the file system. Create the configuration file that …

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WebAug 9, 2013 · Mount your target btrfs partition manually, in e.g. /mnt/btrfs by using . sudo mount /dev/sda2 /mnt/btrfs (assuming the partition holding the btrfs is /dev/sda2). This … WebA subvolume in BTRFS can be accessed in two ways: like any other directory that is accessible to the user like a separately mounted filesystem (options subvol or subvolid) In the latter case the parent directory is not visible and accessible. This is similar to a bind mount, and in fact the subvolume mount does exactly that.

WebA nested layout gives you the ability to create snapshots of any subvolume in the filesystem (except the top-level, which you wouldn't need to do anyway). Then you'd simply mount … WebOct 18, 2024 · You should also add rootfstype=btrfs to your kernel command line in extlinux.conf. Of course, you should add an appropriate root entry as well. Something …

WebNov 28, 2014 · It should be possible to move the subvolume that root is in. Alternatively you can use rsync. What you do need to make sure of is that your boot loader knows where to look and also that fstab is updated. For example in grub I have the line linux /arch/boot/vmlinuz-linux root=UUID=8f324aa7-a827-4b28-b706-f0ae9816f98b rw … WebThe problem happens when we move B into C. This removes the root ref for B pointing to A and adds a ref of B pointing to C. ... - goto out; - } + /* + * This is a placeholder inode for a subvolume we didn't have a + * reference to at the time of the snapshot creation. ... so + * depending on btrfs_del_root_ref to return -ENOENT here is incorret ...

WebA BTRFS subvolume is a part of filesystem with its own independent file/directory hierarchy and inode number namespace. Subvolumes can share file extents. A snapshot is also …

WebOct 27, 2024 · 4. Change btrfs subvolume name using sudo mv, in my example: sudo mv @rootfs @ 5. Edit /etc/fstab on your root partition, to tell it new name of subvolume, … onr usmcWebMessage ID: [email protected] (mailing list archive)State: New, archived: Headers: show onrust chinaWebAbout your worries about moving data to different subvolumes, there is a great solution. As long as it is on the same btrfs top volume you can just mount it and copy data with cp - - reflink=always. It won't move any data at all, basically just relink it. rubyrt • 2 yr. ago copy data with cp - - reflink=always on rush knivesWebJul 26, 2015 · Currently, the path of your spam subvolume with respect to the btrfs root is @/spam because the spam subvolume was created within the @ subvolume. Use btrfs sub list -a / to see this. You will need subvol=@/spam in fstab to mount it. But I think you actually want to create the subvolume in the btrfs root itself, in which case you will … in your area avon and somersetWebFeb 4, 2013 · btrfs subvolume snapshot @new_subvol Then you could go into the subvolume and delete everything other than @new_subvol/home for instance and move everything in home to the root of the new subvolume with something like mv @new_subvol/home/* @new_subvol onrush soundtrackWebOct 18, 2024 · Making /home a btrfs subvolume is as easy as creating a new subvolume /home-temp, copying or moving the contents of /home to /home-temp, deleting /home, and renaming /home-temp to /home. You don’t need any fstab entry for that. in your area contactWebMar 2, 2024 · Move the root from one subvolume to another in BTRFS. I want to install Ubuntu in the BTRFS @root subvolume, but the Ubuntu installer does not allow … in your area crime