e4rat - reduce boot time (into X) by some 50% for ext4

toad · 2011-06-12 07:18:00

WorMzy, I think autologin is the key to it all...

joe of loath · 2011-07-23 22:30:02

Eh, bump...

Reason being, it all works, but I had ~2020 files to reallocate, and the process only took about 5 seconds. How long did everyone else's reallocate operation take?

cojoda · 2011-07-23 22:47:34

joe of loath wrote:

Eh, bump...
Reason being, it all works, but I had ~2020 files to reallocate, and the process only took about 5 seconds. How long did everyone else's reallocate operation take?

That's about how long my reallocations usually take.

kotto · 2011-07-27 01:52:20

Now my system is 7 sec fater to bootup, tahnks for share this tip

FSX · 2011-07-30 16:24:58

I used this on my parent's PC and it boots in 17.5 seconds (hard boot).

But there isn't much difference for my own PC. I almost have the same software setup and better hardware.

toad · 2011-08-09 08:59:07

For the last couple of days I appear to be in an update loop:

toad@archtop 504\6 ~ > packer -Syu
:: Synchronising package databases...
 core is up to date
 extra is up to date
 community is up to date
 archlinuxfr is up to date
 multilib is up to date
 arch-games is up to date
 cream is up to date
:: Starting full system upgrade...
warning: kdenlive: local (0.8-3) is newer than community (0.8svn20110722-1)
:: Replace kernel26 with core/linux? [Y/n] 
:: Replace kernel26-headers with core/linux-headers? [Y/n] 
resolving dependencies...
looking for inter-conflicts...
error: failed to prepare transaction (could not satisfy dependencies)
:: audit: requires kernel26-headers>=2.6.30
:: Synchronizing aur database...
 aur                                        53  53 [------------------------------------------------------------------------------------------] 100%
:: Starting full aur upgrade...

Aur Targets    (1): audit
Pacman Targets (1): linux-headers

Proceed with installation? [Y/n] 

resolving dependencies...
looking for inter-conflicts...
:: linux-headers and kernel26-headers are in conflict. Remove kernel26-headers? [y/N] 
error: unresolvable package conflicts detected
error: failed to prepare transaction (conflicting dependencies)
:: linux-headers and kernel26-headers are in conflict
Installation failed.

Anybody been there or even solved it?

Unia · 2011-08-09 11:01:25

Wow, this is amazing! From booting to Slim without flashing screens and waiting, from Slim to desktop even faster!

WorMzy · 2011-08-09 11:10:06

toad wrote:

For the last couple of days I appear to be in an update loop:

toad@archtop 504\6 ~ > packer -Syu
:: Synchronising package databases...
 core is up to date
 extra is up to date
 community is up to date
 archlinuxfr is up to date
 multilib is up to date
 arch-games is up to date
 cream is up to date
:: Starting full system upgrade...
warning: kdenlive: local (0.8-3) is newer than community (0.8svn20110722-1)
:: Replace kernel26 with core/linux? [Y/n] 
:: Replace kernel26-headers with core/linux-headers? [Y/n] 
resolving dependencies...
looking for inter-conflicts...
error: failed to prepare transaction (could not satisfy dependencies)
:: audit: requires kernel26-headers>=2.6.30
:: Synchronizing aur database...
 aur                                        53  53 [------------------------------------------------------------------------------------------] 100%
:: Starting full aur upgrade...

Aur Targets    (1): audit
Pacman Targets (1): linux-headers

Proceed with installation? [Y/n] 

resolving dependencies...
looking for inter-conflicts...
:: linux-headers and kernel26-headers are in conflict. Remove kernel26-headers? [y/N] 
error: unresolvable package conflicts detected
error: failed to prepare transaction (conflicting dependencies)
:: linux-headers and kernel26-headers are in conflict
Installation failed.

Anybody been there or even solved it?

Assuming packer supports it, add -dd to the arguments. Otherwise, just use pacman:

# pacman -Syudd

Last edited by WorMzy (2011-08-09 11:10:32)

toad · 2011-08-09 11:19:16

Cheers WorMzy,

Syudd??? What does that do? I checked man pacman and one d means no deps but couldn't find any reference to the second one. The wiki entry for pacman didn't tell me any more... Whatever, I'll try

EDIT:

Worked a treat - many thanks!

Last edited by toad (2011-08-09 12:59:11)

archman-cro · 2011-08-09 13:49:26

Attention!

I've tried using e4rat, and after successfully having e4rat-collect do its job and init 1 stuff too, I've tried using "init=/sbin/e4rat-preload" and now I have a broken system, telling me that my partition other than root (my /home partition) cannot be checked and that it should be checked manually. I try to check it manually with "e2fsck /dev/sda3" and it tells me it's mounted. fstab and df tell it isn't. The error is framed with # signs telling me that I should fix it manually remount my root partition rw, since it's ro only if I want to change things on it. And help appreciated. Don't want to reinstall.

I have removed the init stuff from my menu.lst but it still does the same thing.
Bye.

toad · 2011-08-09 13:55:02

Strange. You could always boot into runlevel 1 (simply append a 1 to your kernel boot line) and run fsck.

Can you tell us more your system? file systems, hard disk, etc.

Jelle · 2011-08-09 14:20:29

I once had the same and it was due to some stuff listed under /media/; perhaps it's the same for you? In my case it was caused by booting some other OS and mounting the Arch partitions from within that OS. Simply removing the entries from /media/ on the Arch partition solved it (temporarily), until I did away with that OS (can't remember which one it was).

WorMzy · 2011-08-09 14:25:36

toad wrote:

Cheers WorMzy,
Syudd??? What does that do? I checked man pacman and one d means no deps but couldn't find any reference to the second one. The wiki entry for pacman didn't tell me any more... Whatever, I'll try
EDIT:
Worked a treat - many thanks!

man pacman wrote:

-d, --nodeps
Skips dependency version checks. Package names are still checked. Normally, pacman will
always check a package’s dependency fields to ensure that all dependencies are installed and
there are no package conflicts in the system. Specify this option twice to skip all
dependency checks.

Glad you got it sorted.

toad · 2011-08-09 14:27:53

Okay, time to get some glasses

archman-cro · 2011-08-09 15:06:40

Jelle wrote:

I once had the same and it was due to some stuff listed under /media/; perhaps it's the same for you? In my case it was caused by booting some other OS and mounting the Arch partitions from within that OS. Simply removing the entries from /media/ on the Arch partition solved it (temporarily), until I did away with that OS (can't remember which one it was).

Yup. that was the thing that should've solved. Unfortunately, I was too stupid and speedy, so I issued a rm -rf on a mounted partition and erased all my files. Reinstalling completely atm. Cheers.

toad · 2011-08-09 15:10:12

Ouch, that is tough! Time for a contribution to the "What's the dumbest computing mistake you've made?" thread

archman-cro · 2011-08-09 15:39:45

Contributed.

smakked · 2011-08-10 11:31:37

i tried it on my mian box with no effect that i saw it was pretty fast anyway, but my old pentium it helped

JimmySJ84 · 2011-08-14 20:53:46

Hi,

Can I use e4rat if I have the /boot partition on ext2? everything else is on ext4.

Salvo

Weegee · 2011-08-14 23:31:39

@JimmySJ84:

I have a separate /boot partition (ext2) because I've encrypted my root/home/data partitions (they're all on ext4), and everything works flawlessly

JimmySJ84 · 2011-08-15 07:56:58

Thanks @Weegee!

swanson · 2011-08-15 16:12:07

Really great! Conky and cairo-dock really jumpstarts!

corruptz0r · 2011-08-16 03:04:53

I am having trouble getting e4rat-collect to create startup.log.

I added init=/sbin/e4rat-collect to my grub bootup, and dmesg says (verbose 31):

[    2.392034] [e4rat-collect] Connecting to the audit socket ...
[    2.398512] [e4rat-collect] Cannot insert rules: Invalid argument
[    2.403105] [e4rat-collect] Cannot insert rules: Invalid argument
[    2.506851] [e4rat-collect] Execute `/sbin/init' ...
[    2.511633] [e4rat-collect] Stop collecting files automatically after 120 seconds
[    2.514421] [e4rat-collect] Starting event processing ...
...
[  122.447330] type=1305 audit(1313482915.297:3): audit_enabled=0 old=1 auid=4294967295 ses=4294967295 res=1
[  122.447379] [e4rat-collect] 	0 file(s) collected

I am on kernel 3.0.1-ck with auditing and system-call auditing enabled.

Edit: anyone, please? I still can't find a solution and have spent an entire day sifting through logs and documentation. No joy.

Last edited by corruptz0r (2011-08-19 00:24:54)

swanson · 2011-08-20 11:04:49

I'm running e4rat with very nice results. But what if you have a couple of different kernels like one zen and one ck and one standard arch 3.0 kernel? Is it possible to run it once on one kernel and then add e4rat-preload to all kernels? Or can one have diffrent e4rat logs to work with?

triplesquarednine · 2011-08-20 18:30:21

swanson wrote:

I'm running e4rat with very nice results. But what if you have a couple of different kernels like one zen and one ck and one standard arch 3.0 kernel? Is it possible to run it once on one kernel and then add e4rat-preload to all kernels? Or can one have diffrent e4rat logs to work with?

Myself, i am using grub2 and e4rat is defined in /etc/default/grub ~ and thus is applied to all kernels. (i have linux-rt, linux-ck, and stock kernel). all of them seem to benefit from e4rat, but i too am curious if it is possible to define different logs to work with for each kernel (although, my feeling is that the speed up will be minimal, in comparison to what i am already getting).

Arch Linux

#176 2011-06-12 07:18:00

Re: e4rat - reduce boot time (into X) by some 50% for ext4

#177 2011-07-23 22:30:02

Re: e4rat - reduce boot time (into X) by some 50% for ext4

#178 2011-07-23 22:47:34

Re: e4rat - reduce boot time (into X) by some 50% for ext4

#179 2011-07-27 01:52:20

Re: e4rat - reduce boot time (into X) by some 50% for ext4

#180 2011-07-30 16:24:58

Re: e4rat - reduce boot time (into X) by some 50% for ext4

#181 2011-08-09 08:59:07

Re: e4rat - reduce boot time (into X) by some 50% for ext4

#182 2011-08-09 11:01:25

Re: e4rat - reduce boot time (into X) by some 50% for ext4

#183 2011-08-09 11:10:06

Re: e4rat - reduce boot time (into X) by some 50% for ext4

#184 2011-08-09 11:19:16

Re: e4rat - reduce boot time (into X) by some 50% for ext4

#185 2011-08-09 13:49:26

Re: e4rat - reduce boot time (into X) by some 50% for ext4

#186 2011-08-09 13:55:02

Re: e4rat - reduce boot time (into X) by some 50% for ext4

#187 2011-08-09 14:20:29

Re: e4rat - reduce boot time (into X) by some 50% for ext4

#188 2011-08-09 14:25:36

Re: e4rat - reduce boot time (into X) by some 50% for ext4

#189 2011-08-09 14:27:53

Re: e4rat - reduce boot time (into X) by some 50% for ext4

#190 2011-08-09 15:06:40

Re: e4rat - reduce boot time (into X) by some 50% for ext4

#191 2011-08-09 15:10:12

Re: e4rat - reduce boot time (into X) by some 50% for ext4

#192 2011-08-09 15:39:45

Re: e4rat - reduce boot time (into X) by some 50% for ext4

#193 2011-08-10 11:31:37

Re: e4rat - reduce boot time (into X) by some 50% for ext4

#194 2011-08-14 20:53:46

Re: e4rat - reduce boot time (into X) by some 50% for ext4

#195 2011-08-14 23:31:39

Re: e4rat - reduce boot time (into X) by some 50% for ext4

#196 2011-08-15 07:56:58

Re: e4rat - reduce boot time (into X) by some 50% for ext4

#197 2011-08-15 16:12:07

Re: e4rat - reduce boot time (into X) by some 50% for ext4

#198 2011-08-16 03:04:53

Re: e4rat - reduce boot time (into X) by some 50% for ext4

#199 2011-08-20 11:04:49

Re: e4rat - reduce boot time (into X) by some 50% for ext4

#200 2011-08-20 18:30:21

Re: e4rat - reduce boot time (into X) by some 50% for ext4

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