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Re: Fstab Questions (Final time)



On 3/17/2019 12:43 PM, Stephen P. Molnar wrote:
> At least I hope it's the final time.
>
>
> I know that I have posted this question before, but due to reinstalling
> the OS, I have a clean slate at this point. Now, I've done quite a bit
> of goggling and utubing and I want to be sure that I'm not going to
> crash the system when I add two drives to the fstab.
>
> Here is my current drive structure:
>
>
> NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
> sda 8:0 0 465.8G 0 disk
> ├─sda1 8:1 0 457.9G 0 part /
> ├─sda2 8:2 0 1K 0 part
> └─sda5 8:5 0 7.9G 0 part [SWAP]
> sdb 8:16 0 1.8T 0 disk
> ├─sdb1 8:17 0 1.8T 0 part
> ├─sdb2 8:18 0 1K 0 part
> └─sdb5 8:21 0 7.9G 0 part
> sdc 8:32 0 465.8G 0 disk
> └─sdc1 8:33 0 465.8G 0 part
> sr0 11:0 1 1024M 0 rom
>
> sdc is a new SSD and I formatted it with only one partition. sdb still
> has a previous OS that I intend removing.
>
> Here are the the results of blkid:
>
> /dev/sda1: UUID="71f1ed49-9178-4bbc-b872-510f7982e245" TYPE="ext4"
> PARTUUID="1435f170-01"
> /dev/sda5: UUID="4b041dec-d00f-4acf-a731-f6a34d885105" TYPE="swap"
> PARTUUID="1435f170-05"
> /dev/sdc1: UUID="1f363165-2c59-4236-850d-36d1e807099e" TYPE="ext4"
> PARTUUID="eb2be395-01"
> /dev/sdb1: UUID="900b5f0b-4f3d-4a64-8c91-29aee4c6fd07" TYPE="ext4"
> PARTUUID="0bc7db76-01"
> /dev/sdb5: UUID="7c386aca-a547-475f-8616-f7664f93c595" TYPE="swap"
> PARTUUID="0bc7db76-05"
>
> Here is the curerent fstab (missing exteraneous comment statements):
>
> # <file system> <mount point> <type> <options> <dump> <pass>
> # / was on /dev/sda1 during installation
> UUID=71f1ed49-9178-4bbc-b872-510f7982e245 / ext4 errors=remount-ro 0 1
> # swap was on /dev/sda5 during installation
> UUID=4b041dec-d00f-4acf-a731-f6a34d885105 none swap sw 0 0
> /dev/sr0 /media/cdrom0 udf,iso9660 user,noauto 0 0
>
> Finally, here is what I am proposing adding to the fstab:
>
> UUID=900b5f0b-4f3d-4a64-8c91-29aee4c6fd07 /sdb1 ext4 rw,users,defaults 0 0
> UUID=1f363165-2c59-4236-850d-36d1e807099e /sdc1 ext4 rw,users,defaults 0 0
>
> Note: I have added /sdb1 and /sdc1.
>
> The only questions at this point are:
> 1. Will these changes crash the system,and

Before rebooting the system try 'mount -a' and fix any error before
rebooting.
If 'mount -a' does not conplain, you should be fine; if an error were to
happened, you can always recover.
Also, keep an unmodified copy of your fstab file before modifying it.


> 2. Will I be able to read adn write to the added drives?
>

Looks like it, trying your changes will be the only way to tell.

P.S. If you are that afraid of messing around, having a test environment
is clearly needed.

--
John Doe


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