Berkeley CSUA MOTD:Entry 18488
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2024/11/23 [General] UID:1000 Activity:popular
11/23   

2000/6/16-19 [Computer/SW/Unix, Computer/HW/Drives] UID:18488 Activity:nil
6/16    Solaris Question. Currently I have several diskless solaris
        boxes that mount thier root file system (/) from a rarp/bootp
        server. I have observered that if this server becomes
        unreachable, the diskless clients hang. In some cases the
        diskless clients won't come back even if the nfs server becomes
        reachable again. To solve this problem I wanted to have the
        diskless clients use a ram disk instead of nfs for their root
        file system, but documentation looks scarce. If anyone has
        done this before or knows a good URL, I would appreciate it.
        \_ Use cachefs or just go buy some disks already - there's no
           excuse for diskless machines in this day & age.
           \_ I'm using CP1500/CP2000 CPCI suncards and I can't have
              a disk in my chassis setup since it won't be field tech
              hot replaceable. I would use disk if I could. I'll
              take a look at cachefs. Thanks.
2024/11/23 [General] UID:1000 Activity:popular
11/23   

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2012/9/20-11/7 [Computer/SW/Unix, Finance/Investment] UID:54482 Activity:nil
9/20    How do I change my shell? chsh says "Cannot change ID to root."
        \_ /usr/bin/chsh does not have the SUID permission set. Without
           being set, it does not successfully change a user's shell.
           Typical newbie sys admin (on soda)
           \_ Actually, it does: -rwsr-xr-x 1 root root 37552 Feb 15  2011 /usr/bin/chsh
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2012/5/8-6/4 [Computer/SW/Unix] UID:54383 Activity:nil
5/8     Hello everyone!  This is Josh Hawn, CSUA Tech VP for Spring 2012.
        About 2 weeks ago, someone brought to my attention that our script
        to periodically merge /etc/motd.public into /etc/motd wasn't
        running.  When I looked into it, the cron daemon was running, but
        there hadn't been any root activity in the log since April 7th.  I
        looked into it for a while, but got lost in other things I was
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2012/2/9-3/26 [Computer/SW/Security, Computer/SW/Unix] UID:54305 Activity:nil
2/9     Reminder: support for mail services has been deprecated for *several
        years*. Mail forwarding, specifically .forward mail forwarding, is
        officially supported and was never deprecated.
        \_ There is no .forward under ~root.  How do we mail root and how do
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           \_ root@csua.berkeley.edu is and always has been an alias.
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2011/9/14-12/28 [Computer/SW/Unix] UID:54172 Activity:nil
9/12    We've restored CSUA NFS to something vaguely resembling normal
        functionality -- plus, with some luck, we should now have something
        vaguely resembling normal uptime, too!  Ping root@csua.org if you
        notice any problems.  --jordan
--------------------------------------------------------------------------------
        \_  Oh, and http://irc.CSUA.Berkeley.EDU is online again.
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2011/6/5-8/27 [Computer/HW/Memory] UID:54127 Activity:nil
6/5     In an effort to stabilize our services, we'll be rebuilding parts of
        the CSUA infrastructure over the course of this summer.  To give us
        some wiggle room, I've temporarily decreased soda's allocated RAM from
        8GB to 2GB.  If you need to run something that requires large amounts
        of memory, please send mail to root@csua.org and we'll try to
        accommodate your request.  --jordan
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2011/4/27-7/30 [Computer/SW/Security, Computer/SW/Unix] UID:54096 Activity:nil
4/28    Will wall be fixed?   - jsl
        \_ What's wall?
           \_ An anachronism from a bygone era, when computers were hard to
              comeby, the dorms didn't have net, there was no airbears, and
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           \_ A non useful implementation of twitter.
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2011/5/19-7/30 [Computer/SW/Security] UID:54110 Activity:nil
5/19    Uh, is anyone still using this? Please mark here if you post and
        haven't added this yet. I'll start:
        \_ person k
        \_ ausman, I check in about once a week.
        \_ erikred, twice a week or so.
        \_ mehlhaff, I login when I actually own my home directory instead of
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2010/12/13-2011/2/19 [Computer/SW/Unix] UID:53978 Activity:nil
12/21   Help, all my files are owned by nobody! -ausman
        (yes I emailed root)
        \_ Things should be fine now. As usual, the NFS server caused a cascade
           of errors.
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2012/1/4-2/6 [Computer/HW/Drives] UID:54281 Activity:nil
1/4     I want to test how my servers behave during a disk failure and
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        a drive? These disks are behind a RAID card and run Linux. -ausman
        \_ According to the Linux RAID wiki, you might be able to use mdadm
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2011/9/14-10/25 [Computer/HW/Drives] UID:54173 Activity:nil
9/13    Thanks to Jordan, our disk server is no longer virtualized. Our long
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        another long nightmare of poor hardware reliability!
        ...
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        In any case, this means that cooler was taken out back and shot, and
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2011/2/14-4/20 [Computer/SW/Unix] UID:54039 Activity:nil
2/14    You sure soda isn't running windows in disguise?  It would explain the
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        \_ hardly, My winbox stays up longer.
        \_ Nobody cares about uptime anymore brother, that's what web2.0 has
           taught us.  Everything is "stateless".
           \_ You;d think gamers would care more about uptime.
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2011/2/18-4/20 [Computer/SW/Unix] UID:54044 Activity:nil
2/18    Why does the system seem so sluggish lately?
        \_ Slow NFS is basically always the answer. --toulouse
        \_ Any truth to the rumor that soda will be decommissioned this summer?
           \_ Absolutely none. Soda might go down temporarily while disks are
              reorganized and stuff so soda doesn't suffer from such shitty
              performance nearly as much, but no, we've gotta maintain NFS and
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2010/7/22-8/9 [Computer/SW/OS/FreeBSD, Computer/HW/Drives] UID:53893 Activity:nil
7/22    Playing with dd if=/dev/random of=/dev/<disk> on linux and bsd:
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2009/10/27-11/3 [Computer/HW/Drives] UID:53474 Activity:nil
10/27   I just read an article that Facebook had moved their database
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        \_ I hope you're not running mission critical data:
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2009/8/4-13 [Computer/SW/OS/Windows] UID:53239 Activity:kinda low
8/3     VMWare + Windows XP + Validation question. I need to test stuff with
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2009/7/28-8/6 [Computer/HW/Drives] UID:53216 Activity:nil
7/28    Does it make sense to defragment disks on VMWare? My 80GB disk
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        Will defragment do anything to it?
        \_ If you want to speed up disk operation in your VM, it's best to
           defragment the disks in your VM, then defragment the disk on your
           host machine where the VM files are.
	...