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How to resize main filesystem

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How to resize main filesystem

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3

on my centos server I mounted a new volume /dev/sdb. I would like to add space to root filesystem /dev/vda1.

[user@prod current]$ df -h
Filesystem Size Used Avail Use% Mounted on
/dev/vda1 30G 11G 18G 37% /
devtmpfs 488M 0 488M 0% /dev
tmpfs 497M 0 497M 0% /dev/shm
tmpfs 497M 50M 447M 11% /run
tmpfs 497M 0 497M 0% /sys/fs/cgroup
tmpfs 100M 0 100M 0% /run/user/1000
/dev/sdb 50G 53M 47G 1% /mnt/volume_nyc3_01

Is there any way to decrease /dev/sdb and increase /dev/vda1? If possible without losing data on /dev/vda1.

linux filesystems

share|improve this question

asked 8 hours ago

mike927mike927

1161

add a comment | 

3

on my centos server I mounted a new volume /dev/sdb. I would like to add space to root filesystem /dev/vda1.

[user@prod current]$ df -h
Filesystem Size Used Avail Use% Mounted on
/dev/vda1 30G 11G 18G 37% /
devtmpfs 488M 0 488M 0% /dev
tmpfs 497M 0 497M 0% /dev/shm
tmpfs 497M 50M 447M 11% /run
tmpfs 497M 0 497M 0% /sys/fs/cgroup
tmpfs 100M 0 100M 0% /run/user/1000
/dev/sdb 50G 53M 47G 1% /mnt/volume_nyc3_01

Is there any way to decrease /dev/sdb and increase /dev/vda1? If possible without losing data on /dev/vda1.

linux filesystems

share|improve this question

asked 8 hours ago

mike927mike927

1161

add a comment | 

on my centos server I mounted a new volume /dev/sdb. I would like to add space to root filesystem /dev/vda1.

[user@prod current]$ df -h
Filesystem Size Used Avail Use% Mounted on
/dev/vda1 30G 11G 18G 37% /
devtmpfs 488M 0 488M 0% /dev
tmpfs 497M 0 497M 0% /dev/shm
tmpfs 497M 50M 447M 11% /run
tmpfs 497M 0 497M 0% /sys/fs/cgroup
tmpfs 100M 0 100M 0% /run/user/1000
/dev/sdb 50G 53M 47G 1% /mnt/volume_nyc3_01

Is there any way to decrease /dev/sdb and increase /dev/vda1? If possible without losing data on /dev/vda1.

linux filesystems

share|improve this question

asked 8 hours ago

mike927mike927

1161

[user@prod current]$ df -h
Filesystem Size Used Avail Use% Mounted on
/dev/vda1 30G 11G 18G 37% /
devtmpfs 488M 0 488M 0% /dev
tmpfs 497M 0 497M 0% /dev/shm
tmpfs 497M 50M 447M 11% /run
tmpfs 497M 0 497M 0% /sys/fs/cgroup
tmpfs 100M 0 100M 0% /run/user/1000
/dev/sdb 50G 53M 47G 1% /mnt/volume_nyc3_01

share|improve this question

asked 8 hours ago

mike927mike927

1161

share|improve this question

asked 8 hours ago

mike927mike927

1161

asked 8 hours ago

mike927mike927

1161

asked 8 hours ago

mike927mike927

1161

1 Answer
1

active

oldest

votes

7

If we consider /dev/vda and /dev/sdb as different (physical) disks, this is not easily achievable, to the point that it would be much easier to reinstall the server from scratch and put / into a LVM volume from the start.

If absolutely necessary, this could be done with a lengthy downtime and lots of knowledge about what you need to do. It would be quite error-prone though and I would not recommend to even try.

/dev/vda suggests this is some kind of virtual system. Depending on what the underlying system allows, it might be possible to resize the disk image providing /dev/vda (and if necessary, delete/shrink the image providing /dev/sdb). Talk to your admin/provider. In that case, after the system picks of the larger size of /dev/vda, you could extend /dev/vda1 and then grow the / file system.

share|improve this answer

answered 6 hours ago

Sven♦Sven

87.8k10148200

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Thank you for your reply. Not sure if you are familiar with digitalocean hosting but /dev/sdb it is just an additional volume I bought to my app. As it is an separate space I need to pass it to my root filesystem. Not sure if it is possible at all.
  
  – mike927
  3 hours ago
  

  
  
  
  

add a comment | 

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7

If we consider /dev/vda and /dev/sdb as different (physical) disks, this is not easily achievable, to the point that it would be much easier to reinstall the server from scratch and put / into a LVM volume from the start.

If absolutely necessary, this could be done with a lengthy downtime and lots of knowledge about what you need to do. It would be quite error-prone though and I would not recommend to even try.

/dev/vda suggests this is some kind of virtual system. Depending on what the underlying system allows, it might be possible to resize the disk image providing /dev/vda (and if necessary, delete/shrink the image providing /dev/sdb). Talk to your admin/provider. In that case, after the system picks of the larger size of /dev/vda, you could extend /dev/vda1 and then grow the / file system.

share|improve this answer

answered 6 hours ago

Sven♦Sven

87.8k10148200

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Thank you for your reply. Not sure if you are familiar with digitalocean hosting but /dev/sdb it is just an additional volume I bought to my app. As it is an separate space I need to pass it to my root filesystem. Not sure if it is possible at all.
  
  – mike927
  3 hours ago
  

  
  
  
  

add a comment | 

7

If we consider /dev/vda and /dev/sdb as different (physical) disks, this is not easily achievable, to the point that it would be much easier to reinstall the server from scratch and put / into a LVM volume from the start.

If absolutely necessary, this could be done with a lengthy downtime and lots of knowledge about what you need to do. It would be quite error-prone though and I would not recommend to even try.

/dev/vda suggests this is some kind of virtual system. Depending on what the underlying system allows, it might be possible to resize the disk image providing /dev/vda (and if necessary, delete/shrink the image providing /dev/sdb). Talk to your admin/provider. In that case, after the system picks of the larger size of /dev/vda, you could extend /dev/vda1 and then grow the / file system.

share|improve this answer

answered 6 hours ago

Sven♦Sven

87.8k10148200

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Thank you for your reply. Not sure if you are familiar with digitalocean hosting but /dev/sdb it is just an additional volume I bought to my app. As it is an separate space I need to pass it to my root filesystem. Not sure if it is possible at all.
  
  – mike927
  3 hours ago
  

  
  
  
  

add a comment | 

If we consider /dev/vda and /dev/sdb as different (physical) disks, this is not easily achievable, to the point that it would be much easier to reinstall the server from scratch and put / into a LVM volume from the start.

If absolutely necessary, this could be done with a lengthy downtime and lots of knowledge about what you need to do. It would be quite error-prone though and I would not recommend to even try.

/dev/vda suggests this is some kind of virtual system. Depending on what the underlying system allows, it might be possible to resize the disk image providing /dev/vda (and if necessary, delete/shrink the image providing /dev/sdb). Talk to your admin/provider. In that case, after the system picks of the larger size of /dev/vda, you could extend /dev/vda1 and then grow the / file system.

share|improve this answer

answered 6 hours ago

Sven♦Sven

87.8k10148200

share|improve this answer

answered 6 hours ago

Sven♦Sven

87.8k10148200

answered 6 hours ago

Sven♦Sven

87.8k10148200

answered 6 hours ago

Sven♦Sven

87.8k10148200