/run/lock/lvm/P_global:aux: open failed: Permission denied                    admin@i-022df533b89172e64:~$ sudo pvdisplay                                       "/dev/sdb1" is a new physical volume of "1023.00 MiB"                           --- NEW Physical volume ---                                                     PV Name               /dev/sdb1                                                 VG Name                                                                         PV Size               1023.00 MiB                                               Allocatable           NO                                                        PE Size               0                                                         Total PE              0                                                         Free PE               0                                                         Allocated PE          0                                                         PV UUID               ggP5HQ-CKyL-63m9-4Rkm-4nqc-FRye-9lra0C                                                                                                  admin@i-022df533b89172e64:~$ sudo cvt                                           

drwx------ 2 admin admin    1M Sep 17  2023 .ssh                                -rw------- 1 admin admin    1M Jan 29 12:54 .viminfo                            drwxr-xr-x 2 admin root     1M Sep 17  2023 agent                               drwxr-xr-x 2 admin root     1M Sep 17  2023 data                                -rw-r--r-- 1 root  root  5120M Sep 17  2023 datafile                            -rwxr-xr-x 1 admin root     3M Sep 17  2023 kihei                               admin@i-0fa842015d17b73da:~$ df -h                                              Filesystem       Size  Used Avail Use% Mounted on                               udev             217M     0  217M   0% /dev                                     tmpfs             46M  368K   46M   1% /run                                     /dev/nvme0n1p1   7.7G  6.1G  1.2G  84% /                                        tmpfs            228M   12K  228M   1% /dev/shm                                 tmpfs            5.0M     0  5.0M   0% /run/lock                                /dev/nvme0n1p15  124M  5.9M  118M   5% /boot/efi                                admin@i-0fa842015d17b73da:~$                                                    

total 52                                                                        drwxr-xr-x 6 admin admin 4096 Jan 29 01:18 .                                    drwxr-xr-x 3 root  root  4096 Sep 17  2023 ..                                   drwx------ 3 admin admin 4096 Sep 20  2023 .ansible                             -rw------- 1 admin admin  655 Jan 29 01:20 .bash_history                        -rw-r--r-- 1 admin admin  220 Aug  4  2021 .bash_logout                         -rw-r--r-- 1 admin admin 3526 Aug  4  2021 .bashrc                              drwxr-xr-x 3 admin admin 4096 Sep 20  2023 .config                              -rw------- 1 admin admin   35 Jan 29 01:18 .lesshst                             -rw-r--r-- 1 admin admin  807 Aug  4  2021 .profile                             -rw------- 1 admin admin   12 Jan 29 01:17 .python_history                      drwx------ 2 admin admin 4096 Sep 17  2023 .ssh                                 drwxr-xr-x 2 admin root  4096 Sep 24  2023 agent                                -rwxrwx--- 1 root  root   360 Sep 24  2023 webserver.py                         admin@i-08df73095031700ec:/proc/579$ ls -la ~/                                  

Usage: /home/admin/kihei [options]                                                -h    Display help                                                              -help                                                                                 Display help                                                              -v    Verbose mode (print extra info)                                           -verbose                                                                              Verbose mode (print extra info)                                         admin@i-0de4925f02641172c:~$ /home/admin/kihei -verbose                         Creating file /home/admin/data/newdatafile with size 1.5GB...                   panic: exit status 1                                                                                                                                            goroutine 1 [running]:                                                          main.main()                                                                             ./main.go:64 +0x47d                                                     admin@i-0de4925f02641172c:~$                                                    

Administrator. It usually boils down to these three things:                                                                                                         #1) Respect the privacy of others.                                              #2) Think before you type.                                                      #3) With great power comes great responsibility.                                                                                                            [sudo] password for admin:                                                      sudo: a password is required                                                                                                                                    admin@i-0e1a08f83bf27aeb8:~$  ss -tuln | grep :5000                             tcp   LISTEN 0      128                         127.0.0.1:5000      0.0.0.0:*   admin@i-0e1a08f83bf27aeb8:~$ ^C                                                 admin@i-0e1a08f83bf27aeb8:~$ ps -p 128                                              PID TTY          TIME CMD                                                   admin@i-0e1a08f83bf27aeb8:~$                                                    

nvme0n1p14 259:3    0    3M  0 part                                             nvme0n1p15 259:4    0  124M  0 part /boot/efi                                   nvme2n1    259:5    0    1G  0 disk                                             admin@i-0392b13faffb300c9:~$ pvcreate ^C                                        admin@i-0392b13faffb300c9:~$ pvcreate nvme1n1 nvme2n1                             WARNING: Running as a non-root user. Functionality may be unavailable.          /run/lock/lvm/P_global:aux: open failed: Permission denied                    admin@i-0392b13faffb300c9:~$ sudo pvcreate nvme1n1 nvme2n1                        No device found for nvme1n1.                                                    No device found for nvme2n1.                                                  admin@i-0392b13faffb300c9:~$ pvdisplay                                            WARNING: Running as a non-root user. Functionality may be unavailable.          /run/lock/lvm/P_global:aux: open failed: Permission denied                    admin@i-0392b13faffb300c9:~$ sudo pvdisplay                                     admin@i-0392b13faffb300c9:~$                                                    

write(2, "main.main", 9main.main)                = 9                            write(2, "(", 1()                        = 1                                    write(2, ")\n", 2)                                                              )                      = 2                                                      write(2, "\t", 1        )                       = 1                             write(2, "./main.go", 9./main.go)                = 9                            write(2, ":", 1:)                        = 1                                    write(2, "64", 264)                       = 2                                   write(2, " +", 2 +)                       = 2                                   write(2, "0x47d", 50x47d)                    = 5                                write(2, "\n", 1                                                                )                       = 1                                                     exit_group(2)                           = ?                                     +++ exited with 2 +++                                                           admin@i-016ee91322e7a68c1:~$ ./kihei -v                                         

  Physical volume "/dev/nvme1n1" successfully created.                            Physical volume "/dev/nvme2n1" successfully created.                          admin@i-03eb810c59173e466:~$ vgcreate vg /dev/nvme1n1 /dev/nvme2n1                WARNING: Running as a non-root user. Functionality may be unavailable.          /run/lock/lvm/P_global:aux: open failed: Permission denied                    admin@i-03eb810c59173e466:~$ sudo vgcreate vg /dev/nvme1n1 /dev/nvme2n1           Volume group "vg" successfully created                                        admin@i-03eb810c59173e466:~$ lvcreate -n lv -l 100%FREE vg                        WARNING: Running as a non-root user. Functionality may be unavailable.          /dev/mapper/control: open failed: Permission denied                             Failure to communicate with kernel device-mapper driver.                        Incompatible libdevmapper 1.02.175 (2021-01-08) and kernel driver (unknown ver  striped: Required device-mapper target(s) not detected in your kernel.          Run `lvcreate --help' for more information.                                   admin@i-03eb810c59173e466:~$ lvcreate -n lv -l 100%FREE vg                      

HTTP/1.1 200 OK                                                                 < Server: Werkzeug/2.3.7 Python/3.9.2                                           Server: Werkzeug/2.3.7 Python/3.9.2                                             < Date: Sat, 25 Jan 2025 13:22:05 GMT                                           Date: Sat, 25 Jan 2025 13:22:05 GMT                                             < Content-Type: text/html; charset=utf-8                                        Content-Type: text/html; charset=utf-8                                          < Content-Length: 12                                                            Content-Length: 12                                                              < Connection: close                                                             Connection: close                                                                                                                                               <                                                                               * Closing connection 0                                                          admin@i-0aed91e6110b4c002:~$ curl -I -vvv localhost:5000                        

> GET / HTTP/1.1                                                                > Host: localhost:5000                                                          > User-Agent: curl/7.74.0                                                       > Accept: */*                                                                   >                                                                               * Mark bundle as not supporting multiuse                                        < HTTP/1.1 200 OK                                                               < Server: Werkzeug/2.3.7 Python/3.9.2                                           < Date: Sat, 25 Jan 2025 12:59:58 GMT                                           < Content-Type: text/html; charset=utf-8                                        < Content-Length: 12                                                            < Connection: close                                                             <                                                                               * Closing connection 0                                                          Unauthorizedadmin@i-07858c807135c8851:~$ curl -vvv localhost:5000               

  VG Status             resizable                                                 MAX LV                0                                                         Cur LV                0                                                         Open LV               0                                                         Max PV                0                                                         Cur PV                2                                                         Act PV                2                                                         VG Size               1.99 GiB                                                  PE Size               4.00 MiB                                                  Total PE              510                                                       Alloc PE / Size       0 / 0                                                     Free  PE / Size       510 / 1.99 GiB                                            VG UUID               3lRIUV-KddX-U0ZU-3Cy1-3gYw-7k6M-cyNk7u                                                                                                  admin@i-06090b57ccc710aa5:~$ sudo lvcreate -l 100%FREE vg                       

admin@i-0ef39eb9f44fc6704:~/agent$ ls                                           check.sh  sadagent  sadagent.txt                                                admin@i-0ef39eb9f44fc6704:~/agent$ cat check.sh                                 #!/bin/bash                                                                                                                                                     expected_checksum="d8bee9d7f830d5fb59b89e1e120cce8e"                            actual_checksum=$(md5sum /home/admin/mysolution | awk '{print $1}')                                                                                             if [[ "$actual_checksum" == "$expected_checksum" ]]; then                         echo -n "OK"                                                                  else                                                                              echo -n "NO"                                                                  fiadmin@i-0ef39eb9f44fc6704:~/agent$ cat sa                                     

admin@i-053ac8837144877c8:~$ ls                                                 agent  data  datafile  kihei                                                    admin@i-053ac8837144877c8:~$                                                    

write(2, ")\n", 2)                                                              )                      = 2                                                      write(2, "\t", 1        )                       = 1                             write(2, "./main.go", 9./main.go)                = 9                            write(2, ":", 1:)                        = 1                                    write(2, "64", 264)                       = 2                                   write(2, " +", 2 +)                       = 2                                   write(2, "0x47d", 50x47d)                    = 5                                write(2, "\n", 1                                                                )                       = 1                                                     exit_group(2)                           = ?                                     +++ exited with 2 +++                                                           admin@i-0ea5d5d501fb459ef:~$ pwd                                                /home/admin                                                                     admin@i-0ea5d5d501fb459ef:~$