libera/#devuan/ Saturday, 2018-07-28

haveHey, I thought you guys might be interested in this blog by freenode staff member Bryan 'kloeri' Ostergaard https://bryanostergaard.com/02:07
nacellethats... lovely.02:32
nacelle:(02:32
DocScrutinizerand reverting back to moderated mode07:40
nacelleouch09:18
Joerg-Neo900 ouch?10:18
DocScrutinizerdidn't show up on homepage13:43
DocScrutinizer?13:43
DocScrutinizerhi!14:01
WaspHi, can anybody tell me what is gid 4 by default?20:39
WaspI have /var/log/messages for example on gid 4 but no group in /etc/group under that id20:39
Waspis it adm?20:40
ik5pvx on debian it is20:40
Waspfor some reason adm is on 5 for me20:40
Waspthats nto good20:40
ik5pvxisn't the number totally irrelevant, so long as it is consistent?20:41
Waspyeah probably it is but that means I accidently changed AND saved it20:41
ik5pvxon a devuan beowulf  it is adm=4 as well20:41
Waspyeah thank you20:42
ik5pvxalthough this was cloned and upgraded from a stable release20:42
Waspput it on 4 again20:42
Wasp5 was adm and tty at the same time20:42
ik5pvxahh, ok20:42
Joerg-Neo900a system admin question: what's wrong with granting others (world) read access to /dev/rtc0  (chmod o+r /dev/rtc*) ?20:47
MinceRperhaps timing attacks in association with side channels in cache (for speculative execution exploits and others)?20:54
Joerg-Neo900MinceR: hmm, thanks. Gathered as much as it being something very exotic20:56
Joerg-Neo900MinceR: though I can't see how particularly cmos clock is any useful for such attacks21:00
DocScrutinizermy google fu sucks at this question21:09
WaspIs there any command to find out if my insert harddisk/sata got physical connected?21:13
Waspcannot see it on fdisk21:13
Wasp`echo "- - -" > /sys/class/scsi_host/host13/scan` doesn't show it up as well21:14
Waspeven though I'm not sure about host1321:14
Waspthe lead on the rack/drawer of the disk is on .. but besides that it has power I cannot tell me anything more21:17
Joerg-Neo900a quote I kept:  <Pali> Joerg-Neo900: command for rescaning sata devices on bus <n>: echo \"- - -\" >/sys/class/scsi_host/host<n>/scan"'21:17
WaspJoerg-Neo900: okay, but that's exactly what I've done ;)21:18
Joerg-Neo900I don't know anything but listening to the drive then21:18
Waspfirst of all I don't know which bus it is but dispite that I ran already through all busses except for host4 where the current running linux is on21:18
Waspehm .. there are more disks in the box than this one21:19
Joerg-Neo900maybe you're using a bus that got disabled in BIOS?21:19
Waspeven thouch gives some vibrations but for real it could be also from any other disk just transported over the box21:19
Waspno, the bus should be fine. Used it regularly on freebsd21:20
Joerg-Neo900it's not unusual that esata and one internal sata bus share one interface and id21:20
Joerg-Neo900use another SATA cable. I seen those critters fail just so often21:21
Waspfunny that kern.log tells me ata5 but dev is something sd.. what the hell .. which one is it now21:28
WaspI'll reboot and I tell you it will be fine21:41
Waspsupprise supprise: after reboot it get recognized22:32
Waspand it was ata8, on bus/host 722:34
WaspI scanned it22:34
Waspbefore I mean, nothing happened22:34
WaspI'll check bios later. Read that on some boards there is an option to disable/enable hot plug22:41
Joerg-Neo900yep22:51
Joerg-Neo900and SATA isn't originaly designed to support hotpkug iirc. So it's not too unusual that only first device attached gets proper initialization, on some hw even only when attached during power-up22:53
Joerg-Neo900for sure hotplugging is one of SATA's least thoroughly tested features22:54
WaspJoerg-Neo900: it shouldn't be a hardware issue since I use it regular on freebsd. The only thing I can imagine since my bios resetet for random reason, that something got reset and I forgot to enable it again23:36
WaspHowever devuan/linux/kde I dont know for real runs pretty un-smooth .. that's also why bios reset after a freeze of linux23:37
WaspI mean "why" .. I don't know why but just happens during this incident23:38

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