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![Liav A](/assets/img/avatar_default.png)
This filesystem is based on the code of the long-lived TmpFS. It differs from that filesystem in one keypoint - its root inode doesn't have a sticky bit on it. Therefore, we mount it on /dev, to ensure only root can modify files on that directory. In addition to that, /tmp is mounted directly in the SystemServer main (start) code, so it's no longer specified in the fstab file. We ensure that /tmp has a sticky bit and has the value 0777 for root directory permissions, which is certainly a special case when using RAM-backed (and in general other) filesystems. Because of these 2 changes, it's no longer needed to maintain the TmpFS filesystem, hence it's removed (renamed to RAMFS), because the RAMFS represents the purpose of this filesystem in a much better way - it relies on being backed by RAM "storage", and therefore it's easy to conclude it's temporary and volatile, so its content is gone on either system shutdown or unmounting of the filesystem.
14 lines
522 B
Plaintext
14 lines
522 B
Plaintext
# Root file system. This is a fake entry which gets ignored by `mount -a`;
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# the actual logic for mounting root is in the kernel.
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/dev/hda / ext2 nodev,nosuid,ro
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# Remount /bin, /root, and /home while adding the appropriate permissions.
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/bin /bin bind bind,nodev,ro
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/etc /etc bind bind,nodev,nosuid
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/home /home bind bind,nodev,nosuid
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/root /root bind bind,nodev,nosuid
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/var /var bind bind,nodev,nosuid
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/www /www bind bind,nodev,nosuid
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/usr/Tests /usr/Tests bind bind,nodev,ro
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/usr/local /usr/local bind bind,nodev,nosuid
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