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It is only really useful when used with + and usually in combination with the -R flag for giving Group or Others access to a big directory tree without setting execute permission on normal files (such as text files), which would normally happen if you just used chmod -R a+rx ., whereas with X you can do chmod -R a+rX . instead
EROFS (Enhanced Read-Only File System) is a lightweight read-only file system initially developed by Huawei, originally for the Linux kernel and now maintained by an open-source community.
The read permission grants the ability to read a file. When set for a directory, this permission grants the ability to read the names of files in the directory, but not to find out any further information about them such as contents, file type, size, ownership, permissions. The write permission grants the ability to modify a file. When set for ...
Squashfs is a compressed read-only file system for Linux. Squashfs compresses files, inodes and directories, and supports block sizes from 4 KiB up to 1 MiB for greater compression. Several compression algorithms are supported. Squashfs is also the name of free software, licensed under the GPL, for accessing Squashfs filesystems.
It combines multiple different underlying mount points into one, resulting in single directory structure that contains underlying files and sub-directories from all sources. Common applications overlay a read/write partition over a read-only partition, such as with LiveCDs and IoT devices with limited flash memory write cycles.
Directory for temporary files (see also /var/tmp). Often not preserved between system reboots and may be severely size-restricted. /usr: Secondary hierarchy for read-only user data; contains the majority of user utilities and applications. Should be shareable and read-only. [9] [10] /usr/bin
(User) Hidden: When set, indicates that the file or directory should not, by default, be displayed in the GUI; ls will display it, however. [17] (System) Restricted: When set, indicates that the file or directory will be protected by System Integrity Protection (User and System) Compressed: Read-only attribute for files compressed using HFS+ ...
Pages in category "Read-only file systems supported by the Linux kernel" The following 4 pages are in this category, out of 4 total. This list may not reflect recent changes .