Arch Linux

algorythm

Member

From: /usr/share/zoneinfo/Europe/FIN

Registered: 2009-07-17

Posts: 181

[Solved] Major problem: chmodded /usr and /bin

Well now I have really screwed my system. It's a long story, but in the end I ran these commands:

sudo chmod -R 4755 /usr

sudo chmod -R 4755 /bin

sudo chmod u+s /usr/bin/Xorg

.. and now I can't even get to gdm, because I get this Xorg error:

Failed to start X server...

[OK]

/usr/bin/Xorg: error while loading shared libraries: /usr/lib/libhal.so

Ctrl + Alt + F1-6 won't work because only F1 does something and even there I just get this weird text:

:: Loading Initramfs
commandline read: splashy
commandline read: boot
waiting 90 seconds for device /dev/disk/by-uuid/e289..[numbers]..311 ...

(F2 brings me back to the Xorg error, F7 bring me to stare a black screen). This means I can't even fix this with pacman/powerpill by doing a whole reinstallation every single package I have on my system.

Any help/comments where I don't see phrases such as "lol why did you do that" are greatly appreciated.

Last edited by algorythm (2009-08-05 21:41:12)

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“Talent you can bloom. Instinct you can polish.”  — Haikyuu!! (adapted)
“If everybody thought alike, no one would be thinking very much.”  — Walter Lippmann (adapted)
“The important thing is to be able, at any moment, to sacrifice what we are for what we could become.”  — Charles Dubois

loafer

Member

From: the pub

Registered: 2009-04-14

Posts: 1,772

Re: [Solved] Major problem: chmodded /usr and /bin

Can you log in via a live CD, mount your drives and set the permissions back to what they should be?

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All men have stood for freedom...
For freedom is the man that will turn the world upside down.
Gerrard Winstanley.

Allan

Pacman

From: Brisbane, AU

Registered: 2007-06-09

Posts: 11,384

Website

Re: [Solved] Major problem: chmodded /usr and /bin

setting permissions back to correct may be more easily done by just reinstalling all your packages.

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PGP Key: F99FFE0FEAE999BD

.:B:.

Forum Fellow

Registered: 2006-11-26

Posts: 5,819

Website

Re: [Solved] Major problem: chmodded /usr and /bin

Do what Allan says. Reinstalls should replace your old files with new ones with correct permissions.

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Got Leenucks? :: Arch: Power in simplicity :: Get Counted! Registered Linux User #392717 :: Blog thingy

algorythm

Member

From: /usr/share/zoneinfo/Europe/FIN

Registered: 2009-07-17

Posts: 181

Re: [Solved] Major problem: chmodded /usr and /bin

From my post..:

Do what Allan says. Reinstalls should replace your old files with new ones with correct permissions.

...(F2 brings me back to the Xorg error, F7 bring me to stare a black screen). This means I can't even fix this with pacman/powerpill by doing a whole reinstallation every single package I have on my system.

Can you log in via a live CD, mount your drives and set the permissions back to what they should be?

Yes, but I don't know what they could possibly be...

(I also have ubuntu on another partition)

Edit: I can boot to root terminal mode but somehow, someway, I have no idea why, but I don't have internet connection there(?).

My god my system is so screwed because of these permissions and dependencies.

Last edited by algorythm (2009-08-05 14:32:58)

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“Talent you can bloom. Instinct you can polish.”  — Haikyuu!! (adapted)
“If everybody thought alike, no one would be thinking very much.”  — Walter Lippmann (adapted)
“The important thing is to be able, at any moment, to sacrifice what we are for what we could become.”  — Charles Dubois

algorythm

Member

From: /usr/share/zoneinfo/Europe/FIN

Registered: 2009-07-17

Posts: 181

Re: [Solved] Major problem: chmodded /usr and /bin

Phew! I got myself step further by downloading the latest dhcp and dhcpcd from ftp.hosteurope.de and installing them with pacman -U - this finally gave me my internet connection back.

I'll run

pacman -S $(pacman -Qq | grep -v "$(pacman -Qqm)")

and let ya know my results.

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“Talent you can bloom. Instinct you can polish.”  — Haikyuu!! (adapted)
“If everybody thought alike, no one would be thinking very much.”  — Walter Lippmann (adapted)
“The important thing is to be able, at any moment, to sacrifice what we are for what we could become.”  — Charles Dubois

algorythm

Member

From: /usr/share/zoneinfo/Europe/FIN

Registered: 2009-07-17

Posts: 181

Re: [Solved] Major problem: chmodded /usr and /bin

Well after reinstallation I still had to remove the "4"755 from /bin and "6"755 from all the folders on /usr manually with pcmanfm by unticking the Set UIDs Set GUIDs (I was careful that I wouldn't do anything with the binaries in /usr/bin and /usr/sbin).

That's normal as how could reinstalling packages change the permissions of the main directories ?

Last edited by algorythm (2009-08-06 11:30:02)

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“Talent you can bloom. Instinct you can polish.”  — Haikyuu!! (adapted)
“If everybody thought alike, no one would be thinking very much.”  — Walter Lippmann (adapted)
“The important thing is to be able, at any moment, to sacrifice what we are for what we could become.”  — Charles Dubois