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by username
2019/07/30 11:46:38
Forum: CentOS 7 - General Support
Topic: Unplanned reboots
Replies: 3
Views: 344

Re: Unplanned reboots

### Some non-UTF8 chars here ### You mean random binary data? Yes, it seems so. When I open the log with Vi I can see a very long line of ^@^@^@^@^@^@^@^@^@^@^ right before every reboot. When I opened it on my desktop with Kate I was warned that the file contained invalid characters and could only ...
by username
2019/07/30 11:25:26
Forum: CentOS 7 - General Support
Topic: Unplanned reboots
Replies: 3
Views: 344

Re: Unplanned reboots

Is there another log file that could be useful to get more information about what causes these reboot ?

I have sent an email to the server provider to make sure it isn't an hardware issue.
by username
2019/07/29 12:30:25
Forum: CentOS 7 - General Support
Topic: Unplanned reboots
Replies: 3
Views: 344

Unplanned reboots

Hi, I have a CentOS 7 server that is doing some unplanned reboots : reboot system boot 3.10.0-957.21.3. Sun Jul 28 07:04 - 13:19 (1+06:14) reboot system boot 3.10.0-957.21.3. Sun Jul 28 06:22 - 13:19 (1+06:56) reboot system boot 3.10.0-957.21.3. Sun Jul 28 06:16 - 13:19 (1+07:02) reboot system boot ...
by username
2019/01/03 10:24:40
Forum: CentOS 7 - General Support
Topic: Grub error after update from 7.5 to 7.6
Replies: 9
Views: 3826

Re: Grub error after update from 7.5 to 7.6

Someone switched it to use UEFI in the BIOS? Or the battery ran out and it reset it all to defaults and did it that way? I don't really know what happened. It seems that both servers are using UEFI. If I run dmesg | grep efi , I get the same output on bother servers : [ 0.000000] efi: EFI v2.50 by ...
by username
2019/01/02 11:18:57
Forum: CentOS 7 - General Support
Topic: Grub error after update from 7.5 to 7.6
Replies: 9
Views: 3826

Re: Grub error after update from 7.5 to 7.6

grub2-mkconfig -o /boot/efi/EFI/centos/grub.cfg That was it ! /boot/grub2 was used before the update. But for some unknown reason, after the reboot, the server was looking for a grub.cfg in /boot/efi/EFI/centos/. So I guess it's now booting in EFI. Why ? I don't know. My other server (same hardware...
by username
2018/12/22 15:51:29
Forum: CentOS 7 - General Support
Topic: Grub error after update from 7.5 to 7.6
Replies: 9
Views: 3826

Re: Grub error after update from 7.5 to 7.6

In my case my BIOS is setup to run as a Legacy BIOS, NOT UEFI. Sometimes however the BIOS gets whacked and it defaults back to UEFI... and my machine freezes. Yeah, that could be it. It seemed /boot/efi/EFI/ was not used. But the server might be looking for the cfg there because of some kind of bug...
by username
2018/12/22 15:47:07
Forum: CentOS 7 - General Support
Topic: Grub error after update from 7.5 to 7.6
Replies: 9
Views: 3826

Re: Grub error after update from 7.5 to 7.6

Are you using a SoYouStart/OVH server, by chance? Yep ! It's an OVH server (SP-16)... Running "yum update" and a "reboot" should NOT brick the server. I have been using CentOS as a server since 5 or 6 years and it's a first time I see that... I was quite confident about running simple updates like ...
by username
2018/12/13 16:06:17
Forum: CentOS 7 - General Support
Topic: Grub error after update from 7.5 to 7.6
Replies: 9
Views: 3826

Re: Grub error after update from 7.5 to 7.6

OK, I guess everything can be summerized by : "Is there a way to repair Grub on a dedicated server ?"

I don't really like the custom netboot kernel I'm using right know. Usually, they create some problems. For instance, this one doesn't support SELinux.
by username
2018/12/11 10:34:01
Forum: CentOS 7 - General Support
Topic: Grub error after update from 7.5 to 7.6
Replies: 9
Views: 3826

Grub error after update from 7.5 to 7.6

Hi, Yesterday, I've updated a server running CentOS 7.5 to Centos 7.6. I saw there were two .rpmsave related to Grub and SELinux. After the update, the server wasn't rebooting anymore. I thought it could be a Grub error. So I tried a netboot using the custom kernel from my server provider. The serve...
by username
2018/02/02 13:33:14
Forum: CentOS 6 - Security Support
Topic: One of my servers is suspected of flooding
Replies: 12
Views: 5082

Re: One of my servers is suspected of flooding

I'd ask them again if they actually know the destination ports as well. It might help narrowing down the problem. Yes, I have asked for more information, telling them the line was truncated. EDIT : Well, they answered that unfortunately they don't have more informations. The server is still up sinc...

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