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-0cda1507b0f7c9669:~$ ls                                                 agent  data  datafile  kihei                                                    admin@i-0cda1507b0f7c9669:~$                                                    

  No device found for /dev/xvdc.                                                admin@i-0999e9d6f065453d6:~$ sudo pvcreate /dev/sda4                              No device found for /dev/sda4.                                                admin@i-0999e9d6f065453d6:~$ lsblk                                              NAME         MAJ:MIN RM  SIZE RO TYPE MOUNTPOINT                                nvme1n1      259:0    0    1G  0 disk                                           nvme2n1      259:1    0    1G  0 disk                                           nvme0n1      259:2    0    8G  0 disk                                           ├─nvme0n1p1  259:3    0  7.9G  0 part /                                         ├─nvme0n1p14 259:4    0    3M  0 part                                           └─nvme0n1p15 259:5    0  124M  0 part /boot/efi                                 admin@i-0999e9d6f065453d6:~$ pvcreate /dev/nvme0n1                                WARNING: Running as a non-root user. Functionality may be unavailable.          /run/lock/lvm/P_global:aux: open failed: Permission denied                    admin@i-0999e9d6f065453d6:~$                                                    

admin@i-0d1634122a0109610:~$                                                    

admin@i-06fbb5fbb32cbcef9:~$ vgs                                                  WARNING: Running as a non-root user. Functionality may be unavailable.          /run/lock/lvm/P_global:aux: open failed: Permission denied                    admin@i-06fbb5fbb32cbcef9:~$ sudo vgs                                           admin@i-06fbb5fbb32cbcef9:~$ sudo vgs                                           admin@i-06fbb5fbb32cbcef9:~$ sudo pvs                                             PV         VG Fmt  Attr PSize PFree                                             /dev/sdb      lvm2 ---  1.00g 1.00g                                             /dev/sdc      lvm2 ---  1.00g 1.00g                                           admin@i-06fbb5fbb32cbcef9:~$ vgcreate LVMvgTEST /dev/sdb /dev/sdc                 WARNING: Running as a non-root user. Functionality may be unavailable.          /run/lock/lvm/P_global:aux: open failed: Permission denied                    admin@i-06fbb5fbb32cbcef9:~$ sudo vgcreate LVMvgTEST /dev/sdb /dev/sdc            Volume group "LVMvgTEST" successfully created                                 admin@i-06fbb5fbb32cbcef9:~$ lvs                                                

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admin@i-00a3b19d165edef56:~$ ls                                                 

ortname=mixed,utf8,errors=remount-ro)                                           admin@i-0c2273d796d05920a:~$ mount /                                            mount: /: must be superuser to use mount.                                       admin@i-0c2273d796d05920a:~$ tune2fs --help                                     tune2fs 1.46.2 (28-Feb-2021)                                                    tune2fs: invalid option -- '-'                                                  Usage: tune2fs [-c max_mounts_count] [-e errors_behavior] [-f] [-g group]               [-i interval[d|m|w]] [-j] [-J journal_options] [-l]                             [-m reserved_blocks_percent] [-o [^]mount_options[,...]]                        [-r reserved_blocks_count] [-u user] [-C mount_count]                           [-L volume_label] [-M last_mounted_dir]                                         [-O [^]feature[,...]] [-Q quota_options]                                        [-E extended-option[,...]] [-T last_check_time] [-U UUID]                       [-I new_inode_size] [-z undo_file] device                               admin@i-0c2273d796d05920a:~$ tune2fs /                                          

552ac3118fe472:~$ ls                                                            agent  data  datafile  kihei                                                    admin@i-0f6552ac3118fe472:~$ ldd kihei                                                  not a dynamic executable                                                admin@i-0f6552ac3118fe472:~$ ./kihei                                            panic: exit status 1                                                                                                                                            goroutine 1 [running]:                                                          main.main()                                                                             ./main.go:64 +0x47d                                                     admin@i-0f6552ac3118fe472:~$ ls                                                 agent  data  datafile  kihei                                                    admin@i-0f6552ac3118fe472:~$ pwd                                                /home/admin                                                                     admin@i-0f6552ac3118fe472:~$                                                    

goroutine 1 [running]:                                                          main.main()                                                                             ./main.go:64 +0x47d                                                     admin@i-0518ed9a0230ccf15:~$ lsblk -l                                           NAME       MAJ:MIN RM  SIZE RO TYPE MOUNTPOINT                                  nvme0n1    259:0    0    8G  0 disk                                             nvme1n1    259:1    0    1G  0 disk                                             nvme0n1p1  259:2    0  7.9G  0 part /                                           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-0518ed9a0230ccf15:~$ sudo pvcreate /dev/nvme1n1 /dev/nvme2n1              Physical volume "/dev/nvme1n1" successfully created.                            Physical volume "/dev/nvme2n1" successfully created.                          admin@i-0518ed9a0230ccf15:~$                                                    

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-06a20db299b11d0b8:~$ lsblk -l                                           NAME       MAJ:MIN RM  SIZE RO TYPE MOUNTPOINT                                  nvme0n1    259:0    0    8G  0 disk                                             nvme1n1    259:1    0    1G  0 disk                                             nvme2n1    259:2    0    1G  0 disk                                             nvme0n1p1  259:3    0  7.9G  0 part /                                           nvme0n1p14 259:4    0    3M  0 part                                             nvme0n1p15 259:5    0  124M  0 part /boot/efi                                   admin@i-06a20db299b11d0b8:~$ sudo pvcreate /dev/nvme1n1 /dev/nvme2n1              Physical volume "/dev/nvme1n1" successfully created.                            Physical volume "/dev/nvme2n1" successfully created.                          admin@i-06a20db299b11d0b8:~$ sudo vgcreate vg /                                 

nvme0n1p15 259:4    0  124M  0 part /boot/efi                                   nvme2n1    259:5    0    1G  0 disk                                             admin@i-0fa4d288c3a7c6a01:~$ pvcreate /dev/nv                                   nvme0       nvme0n1p1   nvme0n1p15  nvme1n1     nvme2n1                         nvme0n1     nvme0n1p14  nvme1       nvme2       nvram                           admin@i-0fa4d288c3a7c6a01:~$ pvcreate /dev/nv                                   nvme0       nvme0n1p1   nvme0n1p15  nvme1n1     nvme2n1                         nvme0n1     nvme0n1p14  nvme1       nvme2       nvram                           admin@i-0fa4d288c3a7c6a01:~$ pvcreate /dev/nvme1n1 /dev/nvm2n1                    WARNING: Running as a non-root user. Functionality may be unavailable.          /run/lock/lvm/P_global:aux: open failed: Permission denied                    admin@i-0fa4d288c3a7c6a01:~$ sudo pvcreate /dev/nvme1n1 /dev/nvm2n1               No device found for /dev/nvm2n1.                                                Physical volume "/dev/nvme1n1" successfully created.                          admin@i-0fa4d288c3a7c6a01:~$                                                    

admin@i-0995917625a422e52:~$ ls                                                 agent  data  datafile  kihei                                                    admin@i-0995917625a422e52:~$ k                                                  

                                                                                    114 root       0 -20       0      0      0 I   0.0   0.0   0:00.00 ena                                                                                      admin@i-0aba8159a1a1cc7e9:~$ ps                                                     PID TTY          TIME CMD                                                       695 pts/1    00:00:00 sh                                                        696 pts/1    00:00:00 bash                                                      881 pts/1    00:00:00 ps                                                    admin@i-0aba8159a1a1cc7e9:~$ lsof -Ua                                           COMMAND  PID  USER   FD   TYPE             DEVICE SIZE/OFF  NODE NAME           gotty    563 admin    1u  unix 0x000000000e846a83      0t0 10471 type=STREAM    gotty    563 admin    2u  unix 0x000000000e846a83      0t0 10471 type=STREAM    sadagent 564 admin    1u  unix 0x00000000cc53c95b      0t0 10477 type=STREAM    sadagent 564 admin    2u  unix 0x00000000cc53c95b      0t0 10477 type=STREAM    admin@i-0aba8159a1a1cc7e9:~$                                                    

bash: /home/admin/datafile: Permission denied                                   admin@i-00ca6dd8e9e53cf6e:~$ sudo echo "" > /home/admin/datafile                bash: /home/admin/datafile: Permission denied                                   admin@i-00ca6dd8e9e53cf6e:~$ sudo su                                            root@i-00ca6dd8e9e53cf6e:/home/admin#                                           root@i-00ca6dd8e9e53cf6e:/home/admin#                                           root@i-00ca6dd8e9e53cf6e:/home/admin# echo "" > /home/admin/datafile            root@i-00ca6dd8e9e53cf6e:/home/admin#                                           root@i-00ca6dd8e9e53cf6e:/home/admin#                                           root@i-00ca6dd8e9e53cf6e:/home/admin# exit                                      exit                                                                            admin@i-00ca6dd8e9e53cf6e:~$ cd /home/admin/                                    admin@i-00ca6dd8e9e53cf6e:~$ ls                                                 agent  data  datafile  kihei                                                    admin@i-00ca6dd8e9e53cf6e:~$ ./