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Converting EXT4 to BTRFS, /dev/sda3 is mounted

Thread starter MaK11-12
Start date Oct 31, 2010
Views 1,398
Replies 1

MaK11-12

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Oct 31, 2010

#1

How do i convert ext4 to btrfs. I have tried "sudo btrfs-convert /dev/sda3/' but it just says '/dev/sda3/ is mounted' .How can i unmount the root filesystem? I have tried 'sudo umount /dev/sda3'. What can i do?

Solution

well, you can't unmount the root filesystem. in order to convert it you'd need to boot without it beeing mounted, for example using a live cd (just make sure it contains the btrfs tools, or create your own)

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bkifft

avowed Cuthwaldian

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Oct 31, 2010
Solution

#2

well, you can't unmount the root filesystem. in order to convert it you'd need to boot without it beeing mounted, for example using a live cd (just make sure it contains the btrfs tools, or create your own)

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