disk mount 하기

상황 설명

서버에 disk가 2개 연결되어 있습니다.

이 중 /dev/sdb 디스크가 사용되지 않고 있어서, /var/log/rsyslog 폴더에 mount를 할 계획입니다.

 

디스크 확인하기

• /dev/sda
• /dev/sdb

logmgmt@syslogserver:~$ sudo parted -l
Model: SEAGATE ST1000NM0023 (scsi)
Disk /dev/sda: 1000GB
Sector size (logical/physical): 512B/512B
Partition Table: msdos
Disk Flags:

Number  Start   End     Size    Type      File system     Flags
 1      1049kB  32.8GB  32.8GB  primary   linux-swap(v1)
 2      32.8GB  33.8GB  1023MB  extended
 5      32.8GB  33.8GB  1023MB  logical   ext4
 3      33.8GB  34.3GB  512MB   primary   fat32           boot, esp
 4      34.3GB  1000GB  966GB   primary   ext4


Model: ATA TOSHIBA MG03ACA2 (scsi)
Disk /dev/sdb: 2000GB
Sector size (logical/physical): 512B/512B
Partition Table: msdos
Disk Flags:

Number  Start   End     Size    Type     File system  Flags
 1      1049kB  2000GB  2000GB  primary  ntfs


logmgmt@syslogserver:~$

 

디스크 ubuntu에서 사용할 수 있도록 변환하기

• /dev/sdb

logmgmt@syslogserver:~$ sudo parted /dev/sdb
GNU Parted 3.4
Using /dev/sdb
Welcome to GNU Parted! Type 'help' to view a list of commands.
(parted) mklabel gpt
Warning: The existing disk label on /dev/sdb will be destroyed and all data on this disk will be lost. Do you want to continue?
Yes/No? yes
(parted) print
Model: ATA TOSHIBA MG03ACA2 (scsi)
Disk /dev/sdb: 2000GB
Sector size (logical/physical): 512B/512B
Partition Table: gpt
Disk Flags:

Number  Start  End  Size  File system  Name  Flags

(parted)

 

 mount 할 디스크의 partition 및 용량 설정하기

• /dev/sdb 용량 전체로 할당 (디스크 용량을 나눠 2개 이상으로 설정할 경우 partition은 2개 이상이 될 수 있음)
• /dev/sdb1 으로 partition 설정 (디스크로 사용할 수 있는 구역, 예 - C:\, D:\)

(parted) mkpart primary ext4 0% 100%
(parted) print
Model: ATA TOSHIBA MG03ACA2 (scsi)
Disk /dev/sdb: 2000GB
Sector size (logical/physical): 512B/512B
Partition Table: gpt
Disk Flags:

Number  Start   End     Size    File system  Name     Flags
 1      1049kB  2000GB  2000GB  ext4         primary

(parted) quit
Information: You may need to update /etc/fstab.

logmgmt@syslogserver:~$

 

mount할 디스크의 device 경로 확인하기

• /dev/sdb1 (partition이 늘어날 경우 /dev/sdb2 등으로 늘어날 수 있음)

logmgmt@syslogserver:~$ fdisk -l /dev/sdb
fdisk: cannot open /dev/sdb: Permission denied
logmgmt@syslogserver:~$ sudo fdisk -l /dev/sdb
Disk /dev/sdb: 1.82 TiB, 2000398934016 bytes, 3907029168 sectors
Disk model: TOSHIBA MG03ACA2
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: gpt
Disk identifier: C016A0C2-47FB-4524-8662-62F857982457

Device     Start        End    Sectors  Size Type
/dev/sdb1   2048 3907028991 3907026944  1.8T Linux filesystem

 

mount할 디스크 포멧하기

logmgmt@syslogserver:~$ sudo mkfs -t ext4 /dev/sdb1
mke2fs 1.46.5 (30-Dec-2021)
/dev/sdb1 contains a ntfs file system labelled '새 볼륨'
Proceed anyway? (y,N) y
Creating filesystem with 488378368 4k blocks and 122101760 inodes
Filesystem UUID: fe303f5e-5ba7-49e4-8b14-f9a5347f2e42
Superblock backups stored on blocks:
        32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208,
        4096000, 7962624, 11239424, 20480000, 23887872, 71663616, 78675968,
        102400000, 214990848

Allocating group tables: done
Writing inode tables: done
Creating journal (262144 blocks): # 엔터
done
Writing superblocks and filesystem accounting information: #엔터
done

logmgmt@syslogserver:~$

 

디스크 mount 하여 리눅스에서 사용하기

logmgmt@syslogserver:~$ sudo mount -t auto /dev/sdb1 /var/log/rsyslog
logmgmt@syslogserver:~$ df -m
Filesystem     1M-blocks  Used Available Use% Mounted on
tmpfs               1596     2      1594   1% /run
/dev/sda4         905596 12700    846822   2% /
tmpfs               7977     0      7977   0% /dev/shm
tmpfs                  5     0         5   0% /run/lock
/dev/sda5            943   191       688  22% /boot
/dev/sda3            488     7       481   2% /boot/efi
tmpfs               1596     1      1596   1% /run/user/128
tmpfs               1596     1      1596   1% /run/user/1000
/dev/sdb1        1876685     1   1781282   1% /var/log/rsyslog #mount 완료
logmgmt@syslogserver:~$

 

자동으로 mount 하기

• /etc/fstab에 등록하기 위해서는 disk의 UUID 정보가 필요

logmgmt@syslogserver:~$ sudo blkid | grep /dev/sdb1
/dev/sdb1: UUID="fe303f5e-5ba7-49e4-8b14-f9a5347f2e42" BLOCK_SIZE="4096" TYPE="ext4" PARTLABEL="primary" PARTUUID="39587ea9-0582-4082-b3d3-6b077fc63fc9"
logmgmt@syslogserver:~$

 

자동 mount 등록 설정하기 (/etc/fstab)

# /etc/fstab: static file system information.
#
# Use 'blkid' to print the universally unique identifier for a
# device; this may be used with UUID= as a more robust way to name devices
# that works even if disks are added and removed. See fstab(5).
#
# <file system> <mount point>   <type>  <options>       <dump>  <pass>
# / was on /dev/sda4 during installation
UUID=c64bd3a1-9b2a-4d9a-bfbf-1fd93994a1dc /               ext4    errors=remount-ro 0       1
# /boot was on /dev/sda5 during installation
UUID=f3d05dfd-77c8-4a66-b9ba-4ca013060550 /boot           ext4    defaults        0       2
# /boot/efi was on /dev/sda3 during installation
UUID=1785-5B0F  /boot/efi       vfat    umask=0077      0       1
# swap was on /dev/sda1 during installation
UUID=7d8047cd-6cb8-41ec-a532-c0d6d8e4de1f none            swap    sw              0       0
# /var/log/rsyslog was on /dev/sdb1 during installation
UUID=fe303f5e-5ba7-49e4-8b14-f9a5347f2e42 /var/log/rsyslog        ext4    defaults 0       1 # 등록

 

자동 mount 설정 오류 확인하기

• 메시지가 아무것도 없으면 정상 작동

logmgmt@syslogserver:~$ sudo mount -a
logmgmt@syslogserver:~$