<Solved>space needed to reinstall a remaster

[gezza]

Hi,
I have a DVD of my system and I have changed the partitions to use a smaller drive as sda.
I have a 3GB '/' and about 6GB 'home'
On the second drive, sdb, I have /home/user/Downloads,opt,tmp,usr,usr/local,and var, with spaces of-10GB,5GB,5GB,10GB,5GB,5Gb
The usr partition has 9.9GB asvailable
Swap space is 12GB. and ram 4GB.
I have no partition size of 8.4GB.
What does the error:---'Not enough space available (8.4GB available whilst 9GB are needed'---?
Gezza

[Old-Polack]

Hi,
I have a DVD of my system and I have changed the partitions to use a smaller drive as sda.
I have a 3GB '/' and about 6GB 'home'
On the second drive, sdb, I have /home/user/Downloads,opt,tmp,usr,usr/local,and var, with spaces of-10GB,5GB,5GB,10GB,5GB,5Gb
The usr partition has 9.9GB asvailable
Swap space is 12GB. and ram 4GB.
I have no partition size of 8.4GB.
What does the error:---'Not enough space available (8.4GB available whilst 9GB are needed'---?
Gezza

Why would you do a silly thing like that? Splitting the / partition into so many smaller partitions is a terrible waste of space, and causes problems such as you now see. Much better would be to have a single / partition of 30 GB on /dev/sdb, and the drive now used as /dev/sda with a single /home partition. Whatever space is left on /dev/sdb could be a separate partition for downloads, mounted on /home/<you>/Downloads.

You didn't say what the actual drive sizes were, but from what you describe it would appear that the /dev/sda drive is only 10 GB total. If that is wrong, then please clarify as to the actual sizes of the drives involved.

[Just17]

If you want mylivecd to use specific partitions for its tmp, working directory etc then you must specify that in the command used.
Use  mylivecd --help   to see command options available.

[gezza]

Hi Guy's,
Well, I think I have found the problem!!
Experimenting is the spice of life....
I have a 60GB SSD drive as the front end. All the reading I have done says--Do not put frequently replaced files  on the SSD drive.
So I thought to have '/' and 'home' on the SSD drive and put /opt,/usr,/usr/local,tmp,var and /home/gerald/Documents and /home/gerald/Downloads on the second drive. Both drives sata-3.
The problem is --no matter how fast the drives are /usr cannot have a separate partition on the second drive, it appears the draklive install cannot find it.
It does find the /usr partition on the same primary drive. and there are no error on installation.
Can anyone please confirm this for me.
Gezza

[kjpetrie]

The first thing is to define frequently updated files. Those in /var/log are updated several times a second, although there is probably some disc-caching reducing this to every few seconds. Files in /usr and /opt get replaced once every few weeks. That's several orders of magnitude less often. /tmp is a case in between.

The point is, if you don't put system files on the SSD, there's no point having one, as these are the files that need to be read quickly to give the speed benefit when booting or opening an application. If they only get replaced on upgrading, that's not that often. Remember, SSD's can take several million rewrites, so replacing a file once a month because of frequent upgrading will still take hundreds of years to wear out the SSD.

I have my /home partition on a magnetic drive and a separate /var partition there as well, but otherwise / and swap are on the SSD. (Swap isn't used often, but when it is I want it to be fast.)

I don't know about trying to install to a separate /usr. I've never tried.