Name: GiLEAD Argenta (official) | 구르몽 (korean)

CPU: Intel® Atom(TM) CPU N550 @ 1.50GHz (2 cores) — Product info

Main Memory: 2G

Storages:

• 230G (SATA) — / partition
• 1024G — ~/WebData partition

Mounted on          Type  Size  Used Avail Use%
/                   ext4  229G  8.8G  208G   5%
~/WebData           ext4  916G  586G  284G  68%

Wireless Network:

• Intel® Wireless 7260-N (802.11n)

• Upgrade php 8.0 _{— Updated on 2021/01/26 17:25}
• altered back WiFI module with Wireless 7260-N (n) _{— Updated on 2020/09/12 03:13} ¹⁾
• altered WiFi module with Intel WiFi Link 5100 (ac) _{— Updated on 2020/09/11 22:36}
• Upgrade mariadb 10.5 _{— Updated on 2020/08/31 13:24}
• adjust & optimize value of php-fpm – /etc/php/7.x/fpm/pool.d/www.conf _{— Updated on 2020/07/25 21:42}
• optimize Nginx configuration with latest guideline _{— Updated on 2020/07/24 05:29}
• LTS upgrade to 20.04 (Focal Fossa) _{— Updated on 2020/07/11 07:18}
• Install Subsonic (Music Management) with proxy_pass URL: https://music.onni.me _{— Updated on 2020/07/11 03:26}
• Change miniPCI wireless adapter _{— Updated on 2020/06/28 20:52}
• Change web root of pting.ml _{— Updated on 2020/06/27 04:04}
• Change backup rsync to another partition _{— Updated on 2020/06/27 04:01}
• Install Nextcloud named iogen.ml _{— Updated on 2020/04/27 05:38}
• Install mariadb 10.3.22 _{— Updated on 2020/03/30 01:42}
• Install YOURLS, self-hosted URL shorten service _{— Updated on 2020/03/30 01:44}
• Issued SSL certificate for jpark.ml _{— Updated on 2020/03/29 23:46}

Nginx Configuration Showing lively on OWL for GiLEAD Argenta

Symptom: Grub Error with 'grub_file_filters'

error: symbol 'grub_file_filters' not found. 
Entering rescue mode... 
grub rescue>

Solution: grub2 installing and updating

• Create Bootable Live USB with ISO
• Boot with Live USB and enter into terminal without installation
• Identify target disk

 sudo fdisk -l
 sudo blkid
 df -Th

• If target disk is /dev/sdXY, mount it to /mnt

  sudo mount /dev/sdXY /mnt

• mount necessary parts into target disk

 for i in /dev /dev/pts /proc /sys /run; do sudo mount -B $i /mnt$i; done

• Update grub with target disk, where this is sdX not sdXY

 sudo grub-install /dev/sdX  
 update-grub
 exit

• reboot without live USB media

— reference: Grub2/Installing _{— Updated on 2020/07/11 07:34}

Symptom: auth.log shows a series of error message

Jul 25 23:57:38 gilead systemd-logind[738]: Suspending...
Jul 25 23:57:38 gilead systemd-logind[738]: Unit suspend.target is masked, refusing operation.
Jul 25 23:57:38 gilead systemd-logind[738]: Failed to execute suspend operation: Permission denied

This message has something to do with lid action of laptop, which could suspend system when lid is closed.

Solution

Edit /etc/systemd/logind.conf

with value HandleLidSwitch=ignore

Symptom: External HDD attached by USB 3.0 makes suspension during writing/reading disk, which causes timeout of inactivity in transferring data such as SFTP.

Solution: Just use USB 2.0 connection.