Linux - pitanja i odgovori

A jbg, izgleda da ništa od TRIM-a za tebe. Iako, ja bi još probao nakon nekog vremena ponovo pročitati taj sektor ručno (naredba pod rednim brojem 6. s drugog linka), čisto da isključim mogućnost da je nešto radilo po disku u međuvremenu. A ako ni tako ne radi, ručno bi upisao discard u fstab i ponovio test, čisto da se osiguram.

Zakaj?

Pa to riješim lako naredbom : sudo fstrim -v /

A inašel sam korisnih stvarčica na ovom linku..

https://sites.google.com/site/easylinuxtipsproject/ssd

Ovo sam koristil...

Preferred method: by rc.local
8.1. You can add the TRIM command to /etc/rc.local. Then this command will be executed automatically on system boot. This hardly slows the boot process down. This is the method that I prefer.

You can do that as follows:

a. First make sure that you have installed the applications gksu and leafpad.

b. Then type in the terminal (use copy/paste):
gksudo leafpad /etc/rc.local

Press Enter.

c. Above the line exit 0 in that file, you now add the TRIM command
fstrim -v for every automatically mounted EXT4 partition.

Note: not for partitions that aren't mounted by default! And also not for the swap partition, as that's already being trimmed automatically by the system by default, during the boot process.

An example is most clarifying. When your Ubuntu is on one single partition, so you have only the root partition / , then your rc.local should look like this:

#!/bin/sh -e
#
# rc.local
#
# This script is executed at the end of each multiuser runlevel.
# Make sure that the script will "exit 0" on success or any other
# value on error.
#
# In order to enable or disable this script just change the execution
# bits.
#
# By default this script does nothing.
fstrim -v /
exit 0

A ovo isto koristim, ručno..

How to execute TRIM manually
9. You can execute TRIM manually as well, namely as follows:

Click on the grey Ubuntu logo (Dash home). Query: terminal.
Click on Terminal.

Type (use copy/paste):
sudo fstrim -v /

Press Enter. Type your password when prompted; this remains entirely invisible, not even dots will show, this is normal. Press Enter again.

This operation may last for minutes; it then looks as if the terminal has frozen. That's not true, however; simply wait patiently....

The above terminal command is enough when you have only one Ubuntu partition and a swap partition (because for the swap it's unnecessary; the system takes care of that automatically).

A i kolko čitam po defaultu trim bi trebal bit uključen, odmah po instalaciji linuxa (ubuntu, mint itd..)

Note: in Ubuntu 14.04 and in Linux Mint 17 TRIM is enabled automatically, when you install Ubuntu 14.04 or Linux Mint 17 on an SSD. Namely by a "cron job".

But this doesn't happen automatically for all SSD's. Furthermore, in most cases "cron" is not the optimal method for TRIM anyway, so I advise you to read on.

hdparm --read-sector [ADDRESS] /dev/sdb(1)

Javlja mi: hdparm --read-sector [ADDRESS] /dev/sdb
  read-sector: bad/missing sector value

sdb to mi je ssd disk..

System-Product-Name ~ $ lsblk
NAME   MAJ:MIN RM   SIZE RO TYPE MOUNTPOINT
sda      8:0    0   1,4T  0 disk
└─sda1   8:1    0   1,4T  0 part
sdb      8:16   0 119,2G  0 disk
├─sdb1   8:17   0 111,6G  0 part /
├─sdb2   8:18   0     1K  0 part
└─sdb5   8:21   0   7,7G  0 part [SWAP]
sr0     11:0    1  1024M  0 rom
System-Product-Name ~ $

OMG

A jesam brzoplet..

Edit: probal sam, al i dalje javlja onu gresku...

Probal i sdb i sdb1

predpostavljam da si ovo preletio?

da...i na ubuntuu 12.10 prije par mjeseci i sad na 14.04 i ništa. pokaže mi se subwoofer u test sound, ali kad kliknem play ništa se ne događa. on misli da svira al ne svira xd 

kako je ovaj ABS u archu retardiran pa toga nema nigdje

Ave.

Da li se u nekoj distri pojavio gui alat sa kojim bi se bilo lako vratiti na ispravno stanje nakon neke havarije  ?

 I sa čime bi najlakše napravio i posle jednostavno vratio image cijelog diska koji je podiljen na root-ext4, home-ext4 i swap  ?

Ma mislio sam nešto jednostavno poput system restore, da se u par klikova vratim na stanje od jučer... 

Acronis se plaća, ak se ne varam...  

Vidim da u gpartedu imaju neke mogucnosti izrade i restore imagea....

Uz rizik da zvučim kao jehovin svjedok,  probaj btrfs. Koja distra? Na opensuseu imaš snapper, na ubuntu/debianu komandnolinijski alat apt-btrfs-snapshot. Osobno koristim drugi i radi. 

Da. Sve što treba je setup subvolumea u skladu s ubuntu rasporedom i skripta radi na debianu - napravi snapshot pri svakom updateu (pisao sam o tome ovdje nedavno).

Ako nešto ode kvragu, preimenuješ @ (root) u nešto, a snapshot u @ i rebootaš. Mislim da jedonstavnije od ovog ne ide. Plus nema brige oko određivanja veličina particija i sl.

Ispunjavam ja capatchu, kada ono xD

Izvor - xkcd: Sandwich - i (realnija?) varijanta na Making XKCD slightly worse.

Najbolje je bilo kad je dotični gospon dao argument da MS Office365 bolje podržava MS Office formate