| devIT | hi | 06:59 |
|---|---|---|
| devIT | I ask again (posted this question in #ubuntu) "I've rebooted i) after 174 days uptime, and ii) after Ruby installation. The OS is Ubuntu Server 18. The reboot ends in "emergency mode"" | 07:01 |
| blackflow | devIT: I'd say that Ruby is irrelevant. There has been a number of kernel updates in the past 174 days. You'll have to check what the systemd output/logs are saying. | 07:02 |
| devIT | what /var/log I have to look at? | 07:03 |
| devIT | syslog ? | 07:03 |
| blackflow | syslog, but you can also use the journal | 07:03 |
| blackflow | infact, check teh journal as there's no guarantee anything has been forwarded and committed to disk, for syslog | 07:04 |
| devIT | there is a way to quick search failures? | 07:04 |
| blackflow | journalctl -p err | 07:04 |
| blackflow | but important messages needn't be marked as errors. also check -k | 07:04 |
| devIT | This sounds useful | 07:04 |
| devIT | journalctl -p -k err ??? | 07:05 |
| blackflow | devIT: man journalctl | 07:06 |
| devIT | Ok, -k to get kernel only messages | 07:12 |
| devIT | There are a lot of them | 07:12 |
| blackflow | devIT: a number of last lines are usually most relevant | 07:14 |
| devIT | -p error show me 3 kernel errors: one about "tpm", one for "sd 2:0:0:0: [sdb] No Caching mode page found" and the last sd 2:0:0:0: [sdb] Assuming drive cache: write through" | 07:15 |
| blackflow | doesn't look like an error. what about system services.... systemctl --failed | 07:15 |
| devIT | I'll try | 07:16 |
| blackflow | (btw -k doesn't show _errors_, it shows kernel messages from the dmesg ringbuffer) | 07:16 |
| blackflow | also what filesystem is on root? emergency mode usually means failure to pivot to root | 07:17 |
| devIT | --failed show "0 loaded units listed" (in red) then "Pass --all to see loaded but inactive units too" | 07:18 |
| blackflow | can you somehow pastebin the output of `journalctl -xe` ? maybe take a screenshot and post to imgur | 07:20 |
| blackflow | I am assuming no network there to use netcat | 07:20 |
| devIT | I'll try with screenshot... back soon | 07:21 |
| blackflow | preferably reboot again and give the fresh output immediately upon entering emergency mode | 07:22 |
| devIT | ok, I'm rebooting, then I'll take the photo | 07:24 |
| devIT | here is the screenshot | 07:35 |
| devIT | https://imgur.com/STAOWPi | 07:35 |
| blackflow | hrm yes that's for the emergency mode boot.... not showing the important bits. I guess you'll just have to go through the journal and locate anything that would explain failure to mount root or whatever the reason is for the emergency mode. | 07:38 |
| blackflow | ordinarily I'd ask you to pastebin the entire log but without network, that's gonna be very difficult | 07:39 |
| devIT | it was fstab! | 07:41 |
| devIT | an entry to an USB external drive | 07:41 |
| devIT | An external drive not present | 07:41 |
| devIT | (and is supposed to be not present, I used it as a temporary drive) | 07:42 |
| blackflow | devIT: temporary drives shouldn't be listed in fstab, but it you really want to, then add to the options section, something like this: nofail,x-systemd.device-timeout=1s | 07:43 |
| blackflow | without nofail, missing fstab mounts will block on boot | 07:44 |
| devIT | thx blackflow , probably I'll add that option | 07:45 |
| devIT | I' very appreciate your support, guys :-) | 07:46 |
| devIT | ("I've very appreciated ...") | 07:46 |
| devIT | I have to go now... | 07:51 |
| devIT | thank you again! | 07:51 |
| lotuspsychje | !cookie | blackflow | 07:51 |
| ubottu | blackflow: Wow! You're such a great helper, you deserve a cookie! | 07:51 |
| blackflow | !yum | 07:54 |
| ubottu | Uh, don't you mean !apt ? | 07:54 |
| lotuspsychje | lol | 07:54 |
| === Nafallo_ is now known as Nafallo | ||
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