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Filesystems
WALDEMAR KOZACZUK edited this page Jul 17, 2022
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OSv supports a variety of filesystems which are described in the below paragraphs. Layers-wise, it comes with the VFS layer (see fs/vfs/*) and particular filesystem implementations found under fs/**/* with the exception of ZFS.
During boot time, OSv initially mounts the bootFS filesystem (see vfs_init() and mount_rootfs()) and then proceeds to mount and pivot to a 'real' filesystem like RoFS, ZFS or VirtioFS (for details see this code in loader.cc) unless the --nomount kernel option was specified.