Search found 21 matches

by maweos
2019/11/17 11:04:51
Forum: CentOS 8 - Hardware Support
Topic: displaylink partial success
Replies: 0
Views: 477

displaylink partial success

Hi i want to share a partial success for using displaylink graphics dongles on Centos8. Background: I have a notebook with Nvidia Optimus, showing the following graphics cards: 00:02.0 VGA compatible controller: Intel Corporation UHD Graphics 630 (Mobile) 01:00.0 VGA compatible controller: NVIDIA Co...
by maweos
2019/10/04 18:18:14
Forum: CentOS 8 - General Support
Topic: How do i change kernel command line?
Replies: 2
Views: 518

Re: How do i change kernel command line?

Hi, i tried these two commands: grub2-mkconfig > /etc/grub2.cfg grub2-mkconfig -o /boot/grub2/grub.cfg However i think i found my problem. It is mostly unrelated to grub. The / partition on this system uses md raid1. At the time of my problems, the raid1 mirror was broken; i didnt notice that. Durin...
by maweos
2019/10/03 09:58:38
Forum: CentOS 8 - General Support
Topic: How do i change kernel command line?
Replies: 2
Views: 518

How do i change kernel command line?

Hi, i have Centos8 installed, but want to add/remove some kernel command line options. The installer automatically added "acpi=off". How do i remove that? It does not show up in any config file i know of. It does not show up with "grubby --info=ALL". Where does this option come from, and how can i g...
by maweos
2014/12/07 13:22:06
Forum: CentOS 7 - General Support
Topic: Bootable Software RAID 1
Replies: 9
Views: 7020

Re: Bootable Software RAID 1

so your /var is having the problem.

What does "mdadm --examine --verbose /dev/sda5" say?

Can you manually start the /var array?
mdadm --assemble --run --verbose --uuid=1017d6c0:7a812ebf:170a75a2:b7bf5be3
or
mdadm --assemble --scan
by maweos
2014/12/06 15:46:28
Forum: CentOS 7 - General Support
Topic: Bootable Software RAID 1
Replies: 9
Views: 7020

Re: Bootable Software RAID 1

Hi, i think you have something else different. If you still have the nonworking system, can you please post the output of the following commands: (If it does not boot, use boot from DVD into "rescue" and chroot. Or try to bring it up with "mdadm --assemble --scan" at the dracut prompt) # cat /etc/md...
by maweos
2014/12/06 08:35:36
Forum: CentOS 7 - General Support
Topic: LVM breaks SSD TRIM discard
Replies: 0
Views: 1614

LVM breaks SSD TRIM discard

Hi, i am trying to install SSD disks with software mirroring for fault tolerance. This guide, Chapter 22.1 explains why md-raid1 is a bad idea, and to use LVM dm-mirror instead: https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/7/html/Storage_Administration_Guide/ch-ssd.html I c...
by maweos
2012/04/23 16:14:53
Forum: CentOS 6 - General Support
Topic: [Solution] Dell XPS17 L702x nvidia GT 555M OOPS
Replies: 1
Views: 329

[Solution] Dell XPS17 L702x nvidia GT 555M OOPS

Hello, had big problems installing a new Dell notebook XPS17 L702x . The graphics card is a nVidia GT 555M (also called optimus). Centos 6.0 works fine (both DVD-installer and resulting installation - kernel 2.6.32-71). Centos 6.2 has an OOPS very early in the kernel (both the install-DVD-boot, and ...
by maweos
2008/08/25 14:17:36
Forum: CentOS 5 - General Support
Topic: SATA shutdown problem
Replies: 6
Views: 603

Re: SATA shutdown problem

Hello Alan, i am not a SMART guru, but i interpreted this differently: This [b]or[/b] in my thinking is a synonym for "in other words", not a logical or. The emergency retract would only happen if the disk is powered off without proper shutdown. At normal shutdown, no emergency retract should happen...
by maweos
2008/08/25 12:56:13
Forum: CentOS 5 - General Support
Topic: SATA shutdown problem
Replies: 6
Views: 603

Re: SATA shutdown problem

Hello, At http://smartmontools.sourceforge.net/doc.html there is a PDF describing the attributes. See link "SMART Attribute Annex" or http://www.t13.org/Documents/UploadedDocuments/docs2005/e05148r0-ACS-SMARTAttributesAnnex.pdf On page 3 of this doc it says: 192 C0h Power-off retract count Number of...

Go to advanced search