Mounting swap without device name
jd1008
jd1008 at gmail.com
Sat Dec 6 00:18:23 UTC 2014
On 12/05/2014 05:02 PM, Polytropon wrote:
> On Sat, 06 Dec 2014 00:50:50 +0100, Christian Baer wrote:
>> Changing device IDs can be a pain. Adding a hard drive to my system results
>> in the system not booting anymore because the device name for / changes
>> after the second drive is detected. I have overcome this by having an fstab
>> like this:
>>
>> # Device Mountpoint FStype Options Dump Pass#
>> /dev/ufs/root / ufs rw 1 1
>> /dev/ada0s3b none swap sw 0 0
>> /dev/ufs/var /var ufs rw 2 2
>> /dev/ufs/usr /usr ufs rw 2 2
>> proc /proc procfs rw 0 0
>>
>> As is plain to see, my machine boots from an MBR drive (in this case an
>> SSD). Note the swap drive however. I have not found a way so far to label
>> the swap partition in a way that I can make the system find it at boot time.
>>
>> Is there a way to do this and if so, then how?
> With "glabel label" - you cannot use a UFS label (like for
> the partitions shown in your /etc/fstab) because swap does
> not have a file system, but you can use gpart to attach a
> label to the partition itself. It could be "/dev/label/swap"
> (note: not "/dev/ufs/swap" for mentioned reasons).
>
> More information here:
>
> http://www.wonkity.com/~wblock/docs/html/disksetup.html#_the_old_standard_mbr
>
Well, glabel(8) is used to /label swap partitions.
/
The label will appear in //dev/label when drive is detected.
/
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