페이지 이력

# hostname
143-u16-siot

# cat /etc/network/interfaces
auto em1
iface em1 inet static
address 150.xxx.yyy.143
netmask 255.255.255.192
network 150.xxx.yyy.128
broadcast 150.xxx.yyy.191
gateway 150.xxx.yyy.129
dns-nameservers 134.75.30.1

# free -h
              total        used        free      shared  buff/cache   available
Mem:           125G        1.4G        111G         25M         12G        123G
Swap:          127G          0B        127G

# top
top - 18:18:30 up 44 days,  7:11,  9 users,  load average: 0.00, 0.01, 0.02
Tasks: 521 total,   1 running, 520 sleeping,   0 stopped,   0 zombie
%Cpu(s):  0.0 us,  0.0 sy,  0.0 ni,100.0 id,  0.0 wa,  0.0 hi,  0.0 si,  0.0 st
KiB Mem : 13191679+total, 11733267+free,  1424996 used, 13159128 buff/cache
KiB Swap: 13410304+total, 13410304+free,        0 used. 12973902+avail Mem

# cat /etc/os-release
NAME="Ubuntu"
VERSION="16.04.7 LTS (Xenial Xerus)"

# lsblk
NAME   MAJ:MIN RM   SIZE RO TYPE MOUNTPOINT
sda      8:0    0 447.1G  0 disk
├─sda1   8:1    0 319.2G  0 part /
├─sda2   8:2    0     1K  0 part
└─sda5   8:5    0 127.9G  0 part [SWAP]
sdb      8:16   0 447.1G  0 disk
└─sdb1   8:17   0 447.1G  0 part /data
sdc      8:32   0   7.3T  0 disk
sdd      8:48   0   7.3T  0 disk

# df -h
Filesystem      Size  Used Avail Use% Mounted on
/dev/sda1       315G  5.5G  293G   2% /
/dev/sdb1       440G   71M  418G   1% /data

# ls -al /data
total 24
drwxr-xr-x  3 root root  4096 Jul 12  2019 .
drwxr-xr-x 24 root root  4096 Aug 29 15:19 ..
drwx------  2 root root 16384 Jul 12  2019 lost+found

# boot using ubuntu 20 desktop image > live
# update apt repo
# apt install dump

# mkdir /mnt/143
# mount /dev/sda1 /mnt/143
# dd if=/dev/zero of=/mnt/143/zerofile bs=1G
# rm /mnt/143/zerofile
# umount /mnt/143

# shirink partition using gparted
# lsblk /dev/sda
NAME   MAJ:MIN RM   SIZE RO TYPE MOUNTPOINT
sda      8:0    0 447.1G  0 disk
├─sda1   8:1    0    10G  0 part /
├─sda2   8:2    0     1K  0 part
└─sda5   8:5    0 127.9G  0 part [SWAP]

# dump -0uf /data/143-u16-siot-sda1-ext4.dump /dev/sda1
  DUMP: Date of this level 0 dump: Thu Oct 12 19:58:42 2023
  DUMP: Dumping /dev/sda1 (/) to /data/143-u16-siot-sda1-ext4.dump
  DUMP: Label: none
  DUMP: Writing 10 Kilobyte records
  DUMP: mapping (Pass I) [regular files]
  DUMP: mapping (Pass II) [directories]
  DUMP: estimated 5835803 blocks.
  DUMP: Volume 1 started with block 1 at: Thu Oct 12 19:58:43 2023
  DUMP: dumping (Pass III) [directories]
  DUMP: dumping (Pass IV) [regular files]
  DUMP: Closing /data/143-u16-siot-sda1-ext4.dump
  DUMP: Volume 1 completed at: Thu Oct 12 19:59:08 2023
  DUMP: Volume 1 5804480 blocks (5668.44MB)
  DUMP: Volume 1 took 0:00:25
  DUMP: Volume 1 transfer rate: 232179 kB/s
  DUMP: 5804480 blocks (5668.44MB) on 1 volume(s)
  DUMP: finished in 25 seconds, throughput 232179 kBytes/sec
  DUMP: Date of this level 0 dump: Thu Oct 12 19:58:42 2023
  DUMP: Date this dump completed:  Thu Oct 12 19:59:08 2023
  DUMP: Average transfer rate: 232179 kB/s
  DUMP: DUMP IS DONE

# scp 143-u16-siot-sda1-ext4.dump 191-u20-restore:~

# hostname
144-u20-siot

# cat /etc/network/interfaces
auto eno1
iface eno1 inet static
address 150.xxx.yyy.144
netmask 255.255.255.192
network 150.xxx.yyy.128
broadcast 150.xxx.yyy.191
gateway 150.xxx.yyy.129
dns-nameservers 134.75.30.1

# cat /etc/os-release
NAME="Ubuntu"
VERSION="20.04.2 LTS (Focal Fossa)"

# free -h
              total        used        free      shared  buff/cache   available
Mem:          125Gi       4.6Gi        72Gi       3.0Mi        48Gi       121Gi
Swap:         127Gi          0B       127Gi

# top
top - 18:18:57 up 44 days,  6:33,  3 users,  load average: 0.00, 0.07, 0.14
Tasks: 571 total,   1 running, 570 sleeping,   0 stopped,   0 zombie
%Cpu(s):  0.1 us,  0.2 sy,  0.0 ni, 99.7 id,  0.0 wa,  0.0 hi,  0.0 si,  0.0 st
MiB Mem : 128811.3 total,  74374.8 free,   4752.9 used,  49683.6 buff/cache
MiB Swap: 130960.0 total, 130960.0 free,      0.0 used. 124245.5 avail Mem

# lsblk
NAME    MAJ:MIN RM   SIZE RO TYPE  MOUNTPOINT
sda       8:0    0 447.1G  0 disk
├─sda1    8:1    0 319.2G  0 part  /
├─sda2    8:2    0     1K  0 part
└─sda5    8:5    0 127.9G  0 part  [SWAP]
sdb       8:16   0 447.1G  0 disk
└─sdb1    8:17   0 447.1G  0 part  /data
sdc       8:32   0   7.3T  0 disk
└─sdc1    8:33   0   7.3T  0 part
  └─md1   9:1    0   7.3T  0 raid1 /sensordata
sdd       8:48   0   7.3T  0 disk
└─sdd1    8:49   0   7.3T  0 part
  └─md1   9:1    0   7.3T  0 raid1 /sensordata

# df -h
Filesystem      Size  Used Avail Use% Mounted on
/dev/sda1       315G   22G  277G   8% /
/dev/sdb1       440G   71M  418G   1% /data
/dev/md1        7.3T  271M  6.9T   1% /sensordata

# ls -al /data
total 24
drwxr-xr-x  3 root root  4096 Jul 12  2019 .
drwxr-xr-x 24 root root  4096 Aug 29 15:19 ..
drwx------  2 root root 16384 Jul 12  2019 lost+found

# boot using ubuntu 20 desktop image > live
# update apt repo
# apt install dump

# after resize partion using gparted
# lsblk /dev/sda
NAME   MAJ:MIN RM   SIZE RO TYPE MOUNTPOINT
sda      8:0    0 447.1G  0 disk
├─sda1   8:1    0    25G  0 part /
├─sda2   8:2    0     1K  0 part
└─sda5   8:5    0 127.9G  0 part [SWAP]

# dump -0uf /data/144-u20-siot-sda1-ext4.dump /dev/sda1

# finding missing file
# mount /dev/sda1 /mnt/144
# cd /mnt/144
# tar cvf 144-u20-siot-sda1-missing.tar \
./root/the-things-stack/.env/data/cockroach/logs/cockroach.1c6de5250b5c.root.2021-06-02T01_23_17Z.000001.log \
./root/the-things-stack/.env/data/cockroach/logs/cockroach-pebble.84cf7ca90fe7.root.2021-06-02T01_28_31Z.000001.log \
./root/.cache/go-build/5f/5fb6bae581d50f79d52eb63a20fa0b0d0b160445f689f7426f91015bbfcc943c-a \
./root/go/lorawan-stack/.env/data/cockroach/logs/heap_profiler/memprof.2021-06-01T08_04_27.767.25543160.pprof \
./root/go/lorawan-stack/.env/data/cockroach/MANIFEST-000021
 
# scp 144-u20-siot-sda1-ext4.dump 191-u20-restore:~
# scp 144-u20-siot-sda1-missing.tar 191-u20-restore:~