Linux Mount Drive: Difference between revisions

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Line 222: Line 222:
  ls -la /mnt/
  ls -la /mnt/
  mount -a
  mount -a
mv /opt/finology/ /nas/disk0/
ln -s /nas/disk0/finology /opt/finology
chown -h pi:pi /opt/finology


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Revision as of 09:05, 6 December 2020

mount
df
lsblk
findmnt
───────────────────────────────────────────────
findmnt /

TARGET SOURCE         FSTYPE OPTIONS
/      /dev/mmcblk0p2 ext4   rw,noatime
lsblk

NAME        MAJ:MIN RM  SIZE RO TYPE MOUNTPOINT
sda           8:0    0  3.7T  0 disk 
├─sda1        8:1    0  128M  0 part 
└─sda2        8:2    0  3.7T  0 part 
mmcblk0     179:0    0 59.6G  0 disk 
├─mmcblk0p1 179:1    0  256M  0 part /boot
└─mmcblk0p2 179:2    0 59.4G  0 part /

Formate

gdisk /dev/sdb
:"
GPT fdisk (gdisk) version 1.0.3

Partition table scan:
  MBR: MBR only
  BSD: not present
  APM: not present
  GPT: not present


***************************************************************
Found invalid GPT and valid MBR; converting MBR to GPT format
in memory. THIS OPERATION IS POTENTIALLY DESTRUCTIVE! Exit by
typing 'q' if you don't want to convert your MBR partitions
to GPT format!
***************************************************************


Command (? for help): o
This option deletes all partitions and creates a new protective MBR.
Proceed? (Y/N): Y

Command (? for help): w

Final checks complete. About to write GPT data. THIS WILL OVERWRITE EXISTING
PARTITIONS!!

Do you want to proceed? (Y/N): Y
OK; writing new GUID partition table (GPT) to /dev/sdb.
The operation has completed successfully.
"

gdisk /dev/sdb
:"
GPT fdisk (gdisk) version 1.0.3

Partition table scan:
  MBR: protective
  BSD: not present
  APM: not present
  GPT: present

Found valid GPT with protective MBR; using GPT.

Command (? for help): v

No problems found. 7814037101 free sectors (3.6 TiB) available in 1
segments, the largest of which is 7814037101 (3.6 TiB) in size.

Command (? for help): n
Partition number (1-128, default 1): 1
First sector (34-7814037134, default = 2048) or {+-}size{KMGTP}: 
Last sector (2048-7814037134, default = 7814037134) or {+-}size{KMGTP}: 
Current type is 'Linux filesystem'
Hex code or GUID (L to show codes, Enter = 8300): 8300
Changed type of partition to 'Linux filesystem'

Command (? for help): v

No problems found. 2014 free sectors (1007.0 KiB) available in 1
segments, the largest of which is 2014 (1007.0 KiB) in size.

Command (? for help): w

Final checks complete. About to write GPT data. THIS WILL OVERWRITE EXISTING
PARTITIONS!!

Do you want to proceed? (Y/N): Y
OK; writing new GUID partition table (GPT) to /dev/sdb.
The operation has completed successfully.
"

mkfs.ext4 /dev/sdb1
mkdir -p /nas/disk0
chmod 775 /nas/disk0
mount /dev/sdb1 /nas/disk0
lsblk
:"
NAME   MAJ:MIN RM   SIZE RO TYPE MOUNTPOINT
sda      8:0    0 465.8G  0 disk 
├─sda1   8:1    0   256M  0 part /boot
└─sda2   8:2    0 465.5G  0 part /
sdb      8:16   0   3.7T  0 disk 
└─sdb1   8:17   0   3.7T  0 part /nas/disk0
"

Auto Mount

blkid
:'
/dev/sda1: LABEL_FATBOOT="boot" LABEL="boot" UUID="6284-658D" TYPE="vfat" PARTUUID="d8d2ce21-01"
/dev/sda2: LABEL="rootfs" UUID="3a324232-335f-4617-84c3-d4889840dc93" TYPE="ext4" PARTUUID="d8d2ce21-02"
/dev/sdb1: UUID="d585a513-6325-450d-95d8-7c7f1d56f08e" TYPE="ext4" PARTLABEL="nas0" PARTUUID="387a56e5-25a9-4953-8d50-00c2d6ad6539"
'
fstab entry might be like below:
PARTUUID=387a56e5-25a9-4953-8d50-00c2d6ad6539  /nas/disk0      ext4    auto,nofail,x-systemd.device-timeout=30  0       0
PARTUUID=387a56e5-25a9-4953-8d50-00c2d6ad6539  /nas/disk0      ext4    nofail,x-systemd.device-timeout=30  0       0
PARTUUID=387a56e5-25a9-4953-8d50-00c2d6ad6539  /nas/disk0      ext4    auto,nofail,noatime,rw,user  0       0
cat /etc/fstab
:"
proc            /proc           proc    defaults          0       0
PARTUUID=d8d2ce21-01  /boot           vfat    defaults          0       2
PARTUUID=d8d2ce21-02  /               ext4    defaults,noatime  0       1
PARTUUID=387a56e5-25a9-4953-8d50-00c2d6ad6539  /nas/disk0      ext4    auto,nofail,noatime,rw,user  0       0
# a swapfile is not a swap partition, no line here
#   use  dphys-swapfile swap[on|off]  for that
"
mount -a
findmnt --verify
findmnt --verify --verbose
findmnt --verify --tab-file /etc/fstab --verbose
lsblk
:"
NAME   MAJ:MIN RM   SIZE RO TYPE MOUNTPOINT
sda      8:0    0 465.8G  0 disk 
├─sda1   8:1    0   256M  0 part /boot
└─sda2   8:2    0 465.5G  0 part /
sdb      8:16   0   3.7T  0 disk 
└─sdb1   8:17   0   3.7T  0 part /nas/disk0
"

Mounting

mount
───────────────────────────────────────────────
lsblk
mkdir /mnt/chorke
mount /dev/sda2 /mnt/chorke/
ls -lah /mnt/chorke/
unmount
───────────────────────────────────────────────
lsblk
umount /mnt/chorke/
ls -lah /mnt/chorke/
rm -rf /mnt/chorke/

Unmounting

udisks2 (new system)
───────────────────────────────────────────────
lsblk
udisksctl unmount -b /dev/sda1
udisksctl power-off -b /dev/sda
udisks (old system)
───────────────────────────────────────────────
lsblk
udisks --unmount /dev/sda1
udisks --detach /dev/sda

Knowledge

───────────────────────────────────────────────
apt update
apt install lshw
apt install eject
apt install gdisk
apt install rsync
apt install hdparm
apt install ntfs-3g
apt install udisks2
apt install progress
cat /proc/mounts
mount|grep ^/dev
ls -la /mnt/
mount -a
mv /opt/finology/ /nas/disk0/
ln -s /nas/disk0/finology /opt/finology 
chown -h pi:pi /opt/finology
───────────────────────────────────────────────
rsync -r --progress source target
udisksctl unmount -b /dev/sda1
lsblk -o NAME,FSTYPE,UUID
cat /proc/self/mounts
hdparm -N /dev/sda
watch progress -w
ls -la /dev/sda*
eject /dev/dvd
fdisk -l
mount -l
df -aTh
mount
lshw

SD Clone

apt search piclone
apt install piclone
./sdclone /dev/sda /dev/mmcblk0
./sdclone /dev/sda /dev/macblk0

RPI Clone

If sda size more than 2TB
git clone https://github.com/billw2/rpi-clone.git; cd rpi-clone
cp rpi-clone rpi-clone-setup /usr/local/sbin
rpi-clone-setup -t testhostname
rpi-clone -f -p 256M sda

References