2,871 reputation
42239
bio website
location
age
visits member for 4 years, 3 months
seen Dec 10 at 22:20

Nov
25
comment Can't change / configure system settings
+1, this actually worked. I had the same issue with 14.04, but rm -r .cache .config .compiz fixed it; I think these files got corrupted due to a forced restart. Deleting them gives a fresh start, and now the settings, wallpaper etc. work again.
Oct
29
comment StartUp Disk Creator always crash at the end of process
For anyone else with the same issue, today on Ubuntu 12.10: Startup Disk Creator always crashes as described. sudo usb-creator-gtk --allow-system-internal crashes too. Unetbootin worked once I managed to install 7zip; Software Center and apt-get said there was no installation candidate. Did manual download of the deb package instead. (Download deb package, double click to install.)
Jul
16
comment How do I align my partition table properly?
Alternative link on SSD: Aligning SSD partitions
Jul
16
comment How do I align my partition table properly?
@Marco How so? The first one, to IBM Developer Works, even has a benchmark graph of the write performance penalty for using unaligned partitions, and a sidebar on RAID. The blogpost by Tso on SSD alignment has moved at least twice since I wrote this. Updated the link again, but there's no guarantee it will keep working.
Oct
30
comment What is the proper terminal-way to shutdown?
@RiMMER shutdown shuts down the OS, but doesn't actually turn off the computer. You need either an extra argument, like shutdown -P, or to call poweroff instead. (They're the same.) The complete list of similar commands is reboot, halt, poweroff and shutdown.
Oct
18
comment Recommended storage scheme for home server? (LVM/JBOD/RAID 5…)
@poolie At the time I wrote this, my impression was that btrfs simply wasn't stable enough yet. But the multi-disk feature seems nice, I guess I'll consider switching when btrfs becomes the official Ubuntu file system. Another thing I left out was RAID 10, which is what I ended up with on one of the machines. Recovery time from backup is currently ~8 hours for 3.5 TB data, which is fine. But anything off site over internet would be too slow to be practical.
May
5
comment How can I specify the order in which filesystems are automatically mounted?
Possible workaround (untested): Configure the last one as noauto and mount in rc.local?
May
4
comment How to install and boot on a RAID 5 Configuration?
According to Ubuntu's Reliable Raid wiki it might not be such a good idea? Does anyone happen to know the current state of affairs?
May
2
comment What's a good cheap video card?
+1 for GeForce 210. I have the Asus Silent model - it works fine with Ubuntu 10.10 and 11.04 (including 3D desktop and Flash), no fan, 4 W power consumption at idle, HDMI/DVI/VGA output. I expect that the Radeon 5450 is very similar.
Apr
28
comment Upgraded with some problems. What happened to my panel? The panels just disappeared
@Sam Install it, described here
Apr
28
comment Resilience of Btrfs inside RAID5
@Mark See my updated answer. In short, the RAID error recovery is designed for bad physical sectors and can recover if what is read back from disk is different from what was written. But no RAID level knows about file systems and journaling and the kind of corruption that can happen there - RAID can't help if what was written was wrong or incomplete in the first place.
Apr
14
comment Can I block log messages from specific devices or drivers?
@msw Thanks, a driver update did the trick. Still interested in the question, as this is not the first time (and probably not the last) I have had "log spamming", and I'd like to know a general solution.
Mar
26
comment Create USB installer from the command line?
I don't have a system to try it out on at the moment, but yeah - it sounds like it should work :) Thanks!
Mar
19
comment Is a disk/ata timeout exception dangerous?
For future readers with similar issues: This may or may not be related to the bug SATA link power management causes disk errors. The error details differ, but I did use SATA link power management.
Mar
17
comment Is the “magic” 200 lines kernel patch included?
@psusi Agree that most users probably won't notice a difference. (Although the grouping is apparently no longer terminal-based.) Whether I will remains to be seen :) (I'm running Boinc and F@H, attempting to maximize CPU usage and desktop responsiveness simultaneously.)
Mar
17
comment Is the “magic” 200 lines kernel patch included?
@psusi I assume it also helps if you are running distributed computing projects (Boinc, SETI, Folding@home ...), if you are a doing hour-long background compiles, probably a handful of other use cases as well. Although a majority of users may never e.g. compile kernels or run Boinc, I wouldn't go so far as to call those that do so insane :)
Mar
15
comment How can I prevent [flush-8:16] and [jbd2/sdb2-8] from causing GUI unresponsiveness?
@ændrük Ok, then I'll have to leave the field to the experts.
Mar
13
comment How can I prevent [flush-8:16] and [jbd2/sdb2-8] from causing GUI unresponsiveness?
Just thinking aloud here: 100% IOWait could mean that the file system is waiting for the disk to wake from a low power state - agressive power saving is a major feature of the WD Greens. But not sure why it would lock the system. There's presumably a /dev/sda as well - which disk holds what? Like "root on sda, home on sdb"?
Mar
13
comment How can I prevent [flush-8:16] and [jbd2/sdb2-8] from causing GUI unresponsiveness?
Is this a laptop, by the way?
Mar
13
comment How can I prevent [flush-8:16] and [jbd2/sdb2-8] from causing GUI unresponsiveness?
I can tell you what they are: They are part of the file system - flush writes the RAM buffer/cache to disk, and jbd2 deals with the ext4 journal.