Did I enter protected mode right?

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revolution
When all else fails, read the source

Joined: 24 Aug 2004
Posts: 21055
Location: In your JS exploiting you and your system

revolution 20 Aug 2026, 22:08

bzt wrote:

... a UNIX clone like Linux usually needs multiple partitions (root, home, usr, var, etc.).

My Linux system has a single partition, root.

20 Aug 2026, 22:08

bzt

Joined: 09 Nov 2018
Posts: 107

bzt 21 Aug 2026, 15:31

revolution wrote:

bzt wrote:
... a UNIX clone like Linux usually needs multiple partitions (root, home, usr, var, etc.).
My Linux system has a single partition, root.

Possible, but extremely inefficient and highly risky. Using different partitions allows you to tweak the file systems according to their usage: usr usually has rarely-changing static larger files, var has lots of often-changing small files for example; you probably want to only allow device files in dev nowhere else; no access time and execution right on files in tmp, etc. If home is separated then you can reinstall the system without losing your own files etc. etc. etc.

(ps. see tune2fs, a typical distro installer calls this automatically, it only asks you what are you going to use the partition for, the tweaking is taken care for you.)

21 Aug 2026, 15:31

revolution
When all else fails, read the source

Joined: 24 Aug 2004
Posts: 21055
Location: In your JS exploiting you and your system

revolution 21 Aug 2026, 21:23

bzt wrote:

Possible, but extremely inefficient and highly risky. Using different partitions allows you to tweak the file systems according to their usage: usr usually has rarely-changing static larger files, var has lots of often-changing small files for example; you probably want to only allow device files in dev nowhere else; no access time and execution right on files in tmp, etc. If home is separated then you can reinstall the system without losing your own files etc. etc. etc.

I wonder if that is conflating mount points with partitions.

I have many mount points, on a single partition

For example tmp is mounted as a ram disk, dev is mounted udev etc.

Code:

udev on /dev type devtmpfs (rw,nosuid,relatime,size=7931608k,nr_inodes=1982902,mode=755,inode64)
tmpfs on /tmp type tmpfs (rw,nosuid,nodev,size=7970804k,nr_inodes=1048576,inode64)

21 Aug 2026, 21:23

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