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34758 discussions

Formatting print with awk and ORS
by Joseph L. Casale 07 Jul '09

07 Jul '09

I have a command I execute: awk 'BEGIN { ORS=" " } { print "\"" $1 "\"" }' input_file which gives me exactly what I need, all field one's in quotes on one line each separated by one space. I now need to print a single quote around all of this, but the ORS flag is screwing me up, it's causing every attempt I try to repeat for every record. Anyone got a pointer how to do this? Thanks! jlc

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dovecot autocreate home and /var/mail
by Eugene Vilensky 07 Jul '09

07 Jul '09

Hi, is there a way to make dovecot autocreate the home directory and the /var/mail/username mbox file? I have tons of users in /etc/passwd but they might never open a shell (where I have oddjobmkhome working), just pop/imap. Thanks!

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Init checking for processes that are configured to "respawn"
by Dirk H. Schulz 07 Jul '09

07 Jul '09

Hi folks, I have a sophisticated question for which I can't find any hints on the web: If you configure init (via /etc/inittab) to respawn processes (like the getty processes) when they exit - how often does init check for the existence of such a process? Does it check actively at all or does it rely on some kind of inter process communication? I am not a programmer, so maybe the second question is completely nonsense. Any hint or help is appreciated. Dirk

2 1

Memory reporting...
by John Doe 07 Jul '09

07 Jul '09

Hi, I have a little question about memory usage... When I do a free, I get: total used free shared buffers cached Mem: 18482800 18030668 452132 0 683068 9426792 -/+ buffers/cache: 7920808 10561992 But, when I do a ps, mysql is the only process that takes noticable memory; and it is far from 7.9GBs... USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND mysql 28346 36.0 15.6 3241196 2884692 ? Sl Jul04 981:19 \_ /usr/libexec/mysqld --basedir=/usr --datadir=/IOL/mysql --user=mysql --pid-file=/var/run/mysqld/mysqld.pid --skip-external-locking --port=3306 --socket=/IOL/mysql/mysql.sock Once you removed the buffers and the cached memory from the total used memory... what is left? Looks like I have "something" (that is not buffers/cached) that takes more than 4GB... Could it be disk cache or is it included in the cached value? Any idea? Thx, JD

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yum install hangs
by Carlos Santana 07 Jul '09

07 Jul '09

Howdy, The yum install <package> hangs in between. This happened few days as well, but just after doing Ctrl+C it reported error with mirror and switched to another one. Today, however, it is not responding to Ctrl+C and kill or kill -9 command is also not working. Any clues? Thanks, CS.

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csgfs repo for CentOS 4
by Bowie Bailey 06 Jul '09

06 Jul '09

Is there any update on the csgfs packages for CentOS 4? The current rpms are 10 months old unless I'm looking at the wrong mirror. -- Bowie

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Re: [CentOS] module-info vs pci.ids
by nate 06 Jul '09

06 Jul '09

nate wrote: > Hello - > > It's been sooooo long since I've tried hacking the kickstart > media to include an updated driver but I guess that time has > come again for me at least, getting an updated "igb" driver > into the CentOS 5.2 installation for a HP DL165G5p(I'm not > ready yet for CentOS 5.3). Ok I think I figured it out module-info seems not to be the file I thought I needed to modify, I've been screwing with this all morning without good results until I discovered I was naming the new initrd the wrong file name..doh.. Anyways I think I resolved it by adding the new entries to modules.alias, the driver loads no problem now. nate

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Trouble running 'alsamixer' as normal user on headless box with minimal system
by Niki Kovacs 06 Jul '09

06 Jul '09

Hi, I just transformed an old Pentium III 500 into a headless jukebox. It's installed in the basement, near the stereo. There's only a base CentOS system on it (GNOME unchecked, package customization checked and then everything unchecked). From there on, I just installed the ALSA utils, and vorbis-tools. The machine is only supposed to do one thing (and to do it well, UNIX philosophy :oD): fetch an audio stream (produced by MPD/Icecast upstairs on a big PC) and then output it from the soundcard to the AUX IN from the stereo. I have a partial - and near-total - success, in that everything runs fine... as root user. Whenever I try to run alsamixer as a normal user on that box, I get the following error message: [kikinovak@jukebox ~]$ alsamixer alsamixer: function snd_ctl_open failed for default: No such file or directory Something similar happens with ogg123, which runs fine as root, but produces the following error message as plain user: [kikinovak@jukebox ~]$ ogg123 http://babasse:8000/jukebox.ogg ALSA lib confmisc.c:768:(parse_card) cannot find card '0' ALSA lib conf.c:3513:(_snd_config_evaluate) function snd_func_card_driver returned error: Aucun fichier ou répertoire de ce type ALSA lib confmisc.c:392:(snd_func_concat) error evaluating strings ALSA lib conf.c:3513:(_snd_config_evaluate) function snd_func_concat returned error: Aucun fichier ou répertoire de ce type ALSA lib confmisc.c:1251:(snd_func_refer) error evaluating name ALSA lib conf.c:3513:(_snd_config_evaluate) function snd_func_refer returned error: Aucun fichier ou répertoire de ce type ALSA lib conf.c:3985:(snd_config_expand) Evaluate error: Aucun fichier ou répertoire de ce type ALSA lib pcm.c:2184:(snd_pcm_open_noupdate) Unknown PCM default === Impossible de charger le pilote par défaut, et aucun autre pilote n'est indiqué dans le fichier de configuration. Terminaison. Now I guess there must be something missing, because on my other machines (with a full-blown desktop installed), alsamixer runs fine as normal user. Any idea what could be wrong here? Cheers from the hot south of France, Niki

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what would be happen if swap partition is not?
by MontyRee 06 Jul '09

06 Jul '09

Hello, all. I know the function of the swap and can make swap partion or file. But, if there is no swap partion at system, what would be happen? that makes the system unstable or not? I have one system that has no swap, but there was no problem until now. Thanks in advance. _________________________________________________________________ 대딩들의 인맥관리! 윈도우 라이브 메신저로 해결하자! 채팅은 기본! 25GB 자료실은 덤! 대딩들의 아지트 윈메 클럽 http://im.msn.co.kr/Univ/

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Upgrading drives in raid 1
by Bob Hoffman 06 Jul '09

06 Jul '09

I think I have solved my issue and would like some input from anyone who has done this for pitfalls, errors, or if I am just wrong. Centos 5.x, software raid, 250gb drives. 2 drives in mirror, one spare. All same size. 2 devices in the mirror, one boot (about 100MB), one that fills the rest of disk and contains LVM partitions. I was thinking of taking out the spare and adding a 500gb drive. I would run this " sfdisk -d /dev/sda | sfdisk /dev/sdc " (drive 'a' setup is cloned onto drive c) Then I would add drive c to the raid array as the spare. I would then pull out drive b and allow drive c to be synced with a. At this point drive c has 250gb worth of partioned space in raid/lvm. I then add a 500gb drive b and repeat above pulling out drive a. Now I have two 500gb drives (b and c) with 250gb worth of partitions mirrored. I am thinking I would next forget about md0 (the boot part) and concentrate on the md1, where the whole system lies. # mdadm --grow /dev/md1 --size=max I believe this will grow out the size of md1 to fill the 500gb of the drive. I would then wrestle with expanding the LVMs that fill the md1 up as I wish. After that, I would add drive 'a' 500gb to the mix by cloning the partitions and then adding as a spare. So...does this sound like the way to upgrade from 250gb to 500gb drives on a raid 1 software raid? Or, is it back to the drawing board?

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