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#filesystem

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On the latest #ATPpodcast I heard @siracusa pronounce the HEIC image format as a word - "heek" [hiːk]. He is the first human I have heard pronounce it as a word. I feel like, for me, it will always be "H E I C".

There are several acronyms I treat this way, that I've heard others say as words, thinking about it.

PNG, SVG, BMP, IFF, SQL, URL, LED, GUI, PDF, PCMCIA (well...), etc.

I am old and set in my ways.

By the way, GIF is not on that list because I pronounce it as a word starting with a soft G, because that is how that is pronounced.

It still weirds me out so much no one had made either a #FUSE filesystem-level or block-device level dm-integrity in the past before #zfs & #btrfs.

Why were storage vendors trusted so much? (RAID relies on the notion that hardware actually properly reports IO errors and failure conditions as well as that it doesn't fail to detect them, this notion does not reflect reality.)

#DMIntegrity #Filesystem #Integrity #DataIntegrity #RAID #BlockDevice #Storage
Continued thread

... #BetrFS betrfs.org/ ...

『… in-kernel file system that uses Bε trees to organize on-disk storage. Bε trees are a write-optimized dictionary, and offer the same asymptotic behavior for sequential I/O and point queries as a B-tree. The advantage of a B ε tree is that it can also ingest small, random writes 1-2 orders of magnitude faster than B-trees and other standard on-disk data structures.』

www.betrfs.orgBetrFS

#linux #cs #computer #science #directory #fileSystem

Yesterday I extracted the contents of an initrd.img that came packaged in a Fedora distribution. From kernel.org I learned this mini-os can be used by the kernel during the bootup process.

I guess I could have mounted the directory to play with the tools it is configured with. But I realized I do not know the difference between a directory and a file system.

Please help me understand what is the difference between these two concepts.

Continued thread

... Note that "df | awk" & "zfs list" commands are not equivalent ...

1.a- "#df(1)" will only have output for the mounted file systems.

1.b- "zfs-list(8)" will have output for both {un,}mounted file systems.

2- Related to above, if another file system is mounted on a mount point, "df(1)" will show the later. While #ZFS will still show the dataset as being mounted (same named property with value of "yes") even if it shadowed|hidden.

"df(1)" output processing in "awk(1)" to fetch the #ZFS dataset from the #fileSystem mountpoint on #FreeBSD 14 …

df -t zfs --libxo=json,pretty /var/{cache/pkg,db} \
| awk '/"name":/ { gsub( "(^\"|\",?$)", "", $NF); print $NF }'
var-2/cache-pkg
zroot2/var/db

Does anyone have a better idea (besides parsing "zfs-list(8)" output)?

Ha! Simpler …

zfs list -H -o name /var/{cache/pkg,db}
var-2/cache-pkg
zroot2/var/db

Included in that is "sort -u" as bonus!

Eh, not quite☝ freeradical.zone/@ax6761/11484

Free Radicalax6761 (@ax6761@freeradical.zone)... Note that "df | awk" & "zfs list" commands are not equivalent ... 1.a- "#df(1)" will only have output for the mounted file systems. 1.b- "zfs-list(8)" will have output for both {un,}mounted file systems. 2- Related to above, if another file system is mounted on a mount point, "df(1)" will show the later. While #ZFS will still show the dataset as being mounted (same named property with value of "yes") even if it shadowed|hidden. #fileSystem
In the movie Hackers (1995), a group of nerds hack into computer networks to outsmart corrupt authorities and uncover a conspiracy.

The film features a mix of retro computing aesthetics, cyberpunk themes, and real-life cybersecurity concepts like sudo and root access.



#hackers #retro #computing #cybersecurity #cyberpunk #movies #sudo #root #god #cyberspace #datasecurity #hacking #computers #network #blackhat #whitehat #cyberpunkaesthetic #computers #filesystem #fisherstevens #pennjillette

I wanted to store some #BorgBackup archives on an #exFAT disk so that any operating system (not just #Linux) could easily read it, but Borg needs a journaling #filesystem. 😢

In theory, there isn't any reason why journaling can't be implemented on FAT 🤔 but everybody probably doesn't consider it worth the effort.

#NTFS would work too, except some of the #Linux machines I run Borg on are running Debian Stable, whose old kernel lacks the ntfs3 driver. 🤦‍♂️