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[arch-general] Nouveau and nvidia simultaneously - is this still a good idea?
by Oon-Ee Ng 01 Dec '12

01 Dec '12

Referring to https://bbs.archlinux.org/viewtopic.php?id=92530 Basically the idea was to have nvidia-utils and libgl packages which do not conflict (and don't contain the libgl.so, and, I suppose, the libglx.so symlinks). The user would then have to change symlinks manually (see [1]) to use either nvidia or nouveau after an X restart. Does anyone do it this way? Is there some possible 'gotcha' I'd face trying to do this? My reasons? To see if I can (and also because I finally got round to checking nouveau's latest updates, and it seems my card is just about fully supported except for power saving). [1a] - I'd guess making /usr/lib/libGL.so point at libGL.so.1 and changing /usr/lib/libGL.so.1 to point to either libGL.so.1.2.0 (for current libgl) or libGL.so.310.19 (for current nvidia-beta) is one thing that needs to be done [1b] - The other conflict seems to require /usr/lib/xorg/modules/extensions/libglx.so to point to either libglx.xorg (for current libgl) or libglx.so.310.19 (for current nvidia-beta) [1c] - Remove nouveau blacklist (or comment it out)

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[arch-general] Boot loaders for Linux that can also boot FreeBSD
by Ralf Mardorf 29 Nov '12

29 Nov '12

Hi :) my apologies for cross-posting this to several Linux mailing lists. I need a boot loader for Linux, that is comfortable to use for my needs, a Linux multi-boot with trillions of Linux installs, trillions ^ 2 kernels and (trillions ^ 2) * 1024 entries with different boot options, so something as GRUB 2 is unusable for my needs. Until now I was comfortable with GRUB legacy, but now I add a FreeBSD install to my machine and against the claims at http://en.wikipedia.org/wiki/Comparison_of_boot_loaders GRUB legacy does not boot FreeBSD (until now). I was thinking of SYSLINUX, perhaps the most popular bootloader by Linux experts, but the Wiki says it doesn't support booting BSD. Since access to the freebsd-ufs partition by Linux is a PITA and Linux is most important for me, I wont use a FreeBSD bootloader. I need easy access to the bootloader's configuration file. I still continue searching with Google. Any hints are welcome! On a FreeBSD mailing list somebody wrote: > You might want to try a chainloader boot from grub. The following is a > chainloader rule that I have used, as well as a normal loader boot. I > use the loader boot, but I also tested the chainloader boot. You will > need a ufs2_stage1_5 file in your grub directory for a loader boot, and > linux grub might not have it available. > > title FreeBSD, sda3 (oak) chainloader > root (hd1,2) > chainloader +1 > boot > > title FreeBSD, sda3 (oak) /boot/loader > root (hd1,2,a) > kernel /boot/loader > boot Yes, ufs2_stage1_5 is missing, so when I tested #title FreeBSD #root (hd0,a) #kernel /boot/loader title FreeBSD rootnoverify (hd0,1) chainloader +1 boot there was no error, but nothing happened, without the chainloader an error 17, cannot mount selected partition appeared. I wonder that so many *NIX users nag about Windows, but support to access Windows files and to multi-boot with Windows is that easy. I don't have Windows on my machine. I hope somebody is experienced with multi-boot machines using different *NIX operating systems and will help me. Regards, Ralf

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[arch-general] Deleting fontconfig symlinks
by Lewis Pike 29 Nov '12

29 Nov '12

Previously, my way of disabling parts of the default fontconfig configuration was to delete the related symlinks in /etc/fonts/conf.d. Now that these symlinks are owned by the fontconfig package rather than created during the post-install script [1], I'm finding that these deleted symlinks are restored whenever fontconfig is upgraded. This has the effect of silently modifying my font configuration. 1. What is the recommended way of disabling parts of the default font configuration such that it survives an upgrade of fontconfig? 2. Is simply changing any unwanted symlinks owned by fontconfig to point to /dev/null an advisable solution? 3. If /dev/null is used as a target what will pacman do when fontconfig is upgraded? --Lewis [1] https://projects.archlinux.org/svntogit/packages.git/commit/trunk?h=package…

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[arch-general] pam_systemd works in tty but not within X or tmux
by MSal 28 Nov '12

28 Nov '12

On Mon, Nov 26, 2012 at 12:15:46AM +0300, MSal wrote: > On Sat, Nov 24, 2012 at 07:00:10PM +0100, Tom Gundersen wrote: > > On Nov 23, 2012 12:21 AM, "MSal" <msal(a)tormail.org> wrote: > > > I asked about this in the forum. But it looks like this is a better > > > place to discuss systemd-related issues. > > > > > > If I login to user1 or user2 then try to play audio which requires > > > access to /dev/snd/* , proper access to the logged in user is set by > > > the session and everything works correctly. > > > > > > But, if I login to user1 then su to user2, audio wouldn't work because > > > access permissions are assigned to the session user only (user1). > > > > > > Any idea how to fix this issue? > > > > Could you elaborate a bit on what you are trying to do? (there might be a > > better way without using 'su'. > > > > The behaviour you are getting is by design, so there is nothing really to > > fix. However, you can of course make the system behave the way you want: > > > > Either, assign your devices to the audio group and the same with your users. > > > > ..... > > > Or add systemd_pam to the su pam file. This will create a new session for > > you when you use su and should therefore adjust the ACLs accordingly. > > > > pam_systemd is exactly what I was looking for. It works with > systemd's/logind's upstream behaviour instead of working around it. > > For reference, I added the following 2 lines to both /etc/pam.d/su{,-l} > as I want a unified behaviour for all su invocations. Both files are > backup which is an added plus: > > session required pam_loginuid.so > session required pam_systemd.so kill-session-processes=1 > > Warning: This will break su in already-open sessions. > Note: "pam_loginuid.so" is an absolute requirement for this use-case not > just a recommendation. > > Check out `man 8 pam_systemd` and `man 8 pam_loginuid` for more info. I spoke too soon. This doesn't work within X or tmux. su fails with a PAM_SESSION_ERR message: su: cannot not open session: Cannot make/remove an entry for the specified session I think pts/<int> is for some reason considered an invalid argument for tty. See logging output below. I first enabled debugging: -session required pam_systemd.so kill-session-processes=1 +session required pam_systemd.so kill-session-processes=1 debug=1 Then tried both cases: 1) logs from the tty case which works: Nov 27 13:28:21 arch64 su[31178]: pam_systemd(su:session): Asking logind to create session: uid=0 pid=31178 service=su type=tty class=user seat=seat0 vtnr=2 tty=tty2 display= remote=no remote_user=user remote_host= Nov 27 13:28:21 arch64 systemd-logind[955]: New session 47 of user root. Nov 27 13:28:21 arch64 su[31178]: pam_systemd(su:session): Reply from logind: id=47 object_path=/org/freedesktop/login1/session/47 runtime_path=/run/user/0 session_fd=6 seat=seat0 vtnr=2 2) logs from within X or tmux where su fails at session creation: Nov 27 13:29:21 arch64 su[31740]: pam_systemd(su:session): Asking logind to create session: uid=0 pid=31740 service=su type=tty class=user seat=seat0 vtnr=2 tty=pts/3 display= remote=no remote_user=user remote_host= Nov 27 13:29:21 arch64 su[31740]: pam_systemd(su:session): Failed to create session: Invalid argument The only difference is (tty=tty2) vs (tty=pts/3).

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[arch-general] Gentoo udev fork w/o systemd
by Jérôme Bartand 27 Nov '12

27 Nov '12

I want to bring to your attention that Gentoo is working on a udev fork called eudev that will - respect the Unix philosophy - be POSIX-compliant and get rid of glibcisms - have no unnecessary dependencies (systemd, kmod) - support separate /usr http://thread.gmane.org/gmane.linux.gentoo.project/2262 with the goal to make it default for Gentoo in the future, along with OpenRC. I know from past discussions on this mailing list that not everybody in the Arch community is happy with systemd. They are looking for contributors and this is an opportunity for cross-community collaboration. Regards, -J

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Re: [arch-general] Subpixels and append mode in Font Config 2.10
by Ralf Mardorf 27 Nov '12

27 Nov '12

For my Ubuntu I had to delete ~./cache when I couldn't chance the sub-pixel order for my Xfce4 desktop, then everything did work again.

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[arch-general] systemd sessions, su -l, and access to /dev/
by MSal 25 Nov '12

25 Nov '12

Hello. I asked about this in the forum. But it looks like this is a better place to discuss systemd-related issues. If I login to user1 or user2 then try to play audio which requires access to /dev/snd/* , proper access to the logged in user is set by the session and everything works correctly. But, if I login to user1 then su to user2, audio wouldn't work because access permissions are assigned to the session user only (user1). Any idea how to fix this issue?

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[arch-general] issues with netcfg v3.0 whe installing archlinux
by kendell clark 24 Nov '12

24 Nov '12

Hi all I'm not sure how, but I broke my archlinux installation on my internal hard drive. But I have the arch-installation scripts on my usb arch install, so I'm installing arch back on to my hard drive. Everything goes fine until it gets to the point where I set up the network from within the chroot. I run wifi-menu, which works fine, I select my network, family_network, enter the wpa2 key, and wait. Sometimes it will connect, and sometimes it will give me one of two error messages. Either, ip lease attempt failed, or failed to connect. In either case I select not to keep the generated profile, and try again. If it does connect, the internet works fine with a ping to google.com, but if I touch either the pacman mirrorlist file, or configure pacman in pacman.conf, and run a pacman -Syy, pacman errors out with a, failed to retrieve reponame, download library error. I'm stumped. I've varified that I have the correct wpa passphrase, and that my internet functions normally. If I exit the chroot, reboot and chroot back in it will work for a little while, then go out again with the same error. Am I missing something obvious? or is it an issue with my usb install? If I try this from the arch iso I downloaded in july, it works. but I can't easily consult the beginner's guide from the console which is why I don't use it. Thanks for any help and sorry for the long message.

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[arch-general] Reboot hangs after Detaching DM Devices
by Mateusz Loskot 24 Nov '12

24 Nov '12

Hi, I installed Arch using latest ISO on ThinkPad W700. I've worked in text mode only, not installed X11 yet. Everything seems to work well so far. The only issue I noticed is when I reboot, the procedure hangs just after displaying line with the message: "Detaching DM Devices" I tried quick investigation using commands like: sytstemd-analyze sytstemd-analyze blame But, nothing obvious come up. I've seen similar problem was reported to OpenSUSE, Fedora, long time ago, but the reports are not very helpful (I use much newer kernel). Could anyone suggest what else I can do to investigate the problem and find what's a troublemaker here? p.s. No idea why, but my posts seem to be held for moderation, I hope this one will make it through. Best regards, -- Mateusz Loskot, http://mateusz.loskot.net

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[arch-general] File permissions with udisks/udisk2 mounts
by Paul Marwick 24 Nov '12

24 Nov '12

I tried asking this on the forum, didn't get any real answers, so I'm hoping someone here can help. I have a script located on a Vfat-formatted flash drive. When mounted using udisks, there are no execute permissions showing on the files, and they cannot be set. After some research, it seems that udisks works with polkit to set things like permission on mounted devices. Unfortunately, so far my attempts at research haven't led me to any information on setting permissions the way I need them, or even where the settings are stored. So I'm hoping someone can point me in the right direction - I want to be able to modify things like execute permissions on mounted devices when I need to. I'm not all that partial to being effectively told I can't do that - reminds me much too much of Windows. I've tried a few workarounds, with little or no success. I installed pmount and used it with the -e option to mount the device. Still no execute permissions. I tried using sh to execute the script - failed again.... I also tried adding the device to /etc/fstab. In that instance, the file showed as executable, but any attempt to execute it, even as root, got a 'permission denied' message. Argh! Paul.

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