An empty fstab file, at that!

I have an sbc that, as of right now, only mounts one partition. I would like to add a swap partition or file. Normally, I would set up said partition or file and then add it to the fstab.

However, when I go to do so, the current fstab contains the following single line:

# UNCONFIGURED FSTAB FOR BASE SYSTEM

OK, so somehow this debian system knows to mount an SD card partition as '/' without being told to do so in the fstab. So, if I add a new entry for a swap partition/file, will it still know how to mount the root partition, or am I fixing to break something?!?

Thanks!
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# UNCONFIGURED FSTAB FOR BASE SYSTEM

OK, so somehow this debian system knows to mount an SD card partition as '/' without being told to do so in the fstab. So, if I add a new entry for a swap partition/file, will it still know how to mount the root partition, or am I fixing to break something?!?

/etc/fstab in modern debian installs is just an additional mount config file. The actual mounting of / or any other mount point you might have is stored somewhere else. /etc/fstab is used for any additional mounts you might want
to add like smb, nfs mounts and in your case, a swap partition. Go ahead and add whatever mounts you want to it, it will be fine and you won't break anything.

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/etc/fstab in modern debian installs is just an additional mount config file. The actual mounting of / or any other mount point you might have is stored somewhere else. /etc/fstab is used for any additional mounts you might want to add like smb, nfs mounts and in your case, a swap partition. Go ahead and add whatever mounts you want to it, it will be fine and you won't break anything.

That is something I was not aware of. I thought everything had to be in
the fstab file in order to mount. I was able to get it to mount a non-swap partition by adding only it to the fstab file without breaking anything.

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Dumas wrote:

/etc/fstab in modern debian installs is just an additional mount config file.
The actual mounting of / or any other mount point you might have is stored >> somewhere else. /etc/fstab is used for any additional mounts you might want >> to add like smb, nfs mounts and in your case, a swap partition. Go ahead and >> add whatever mounts you want to it, it will be fine and you won't break
anything.

That is something I was not aware of. I thought everything had to be in
the fstab file in order to mount. I was able to get it to mount a non-swap partition by adding only it to the fstab file without breaking anything.

Maybe grub has a root= something in it? I can't remember without looking

I have my swap as part of my raid 10 - even if I lose a disk, I won't lose what's in memory that could cause corruption.

Just change to whatever, raw disk, swap file or whatever.


/dev/mapper/vg00-lvswap swap swap defaults 0 0
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