[SOLVED] Question about adding an ssd to system

[horusfalcon]

This looks like it's been solved a while, but I have a question about the solution:

This can be done from a live boot, yes?  It looks as though some sort of Linux console has to be available to implement it...

If I'm right in suspecting this, it could prove a useful tool for system recovery.

Later On,
D

[Just17]

This looks like it's been solved a while, but I have a question about the solution:

This can be done from a live boot, yes? 

Yes, provided it has Grub available on it.

It looks as though some sort of Linux console has to be available to implement it...

If I'm right in suspecting this, it could prove a useful tool for system recovery.

Later On,
D

Not necessarily Linux.
All is needed is an instance of Grub available.

It could be on a floppy, CD or other media.
Provided the media booted and made Grub available it can be run and installed.

Although I don't remember making use of them, there are Grub4DOS and WinGrub too, as well as the Grub we use on Linux.

[horusfalcon]

This looks like it's been solved a while, but I have a question about the solution:

This can be done from a live boot, yes? 

Yes, provided it has Grub available on it.

It looks as though some sort of Linux console has to be available to implement it...

If I'm right in suspecting this, it could prove a useful tool for system recovery.

Later On,
D

Not necessarily Linux.
All is needed is an instance of Grub available.

It could be on a floppy, CD or other media.
Provided the media booted and made Grub available it can be run and installed.

Although I don't remember making use of them, there are Grub4DOS and WinGrub too, as well as the Grub we use on Linux.

Even better!  Yeah, I'll have to play with this some more... looks like a very useful tool for these purposes.  Thanks!

Later On,
D

[atolboo]

I have added a Samsung 840 series SSD 120GB and put the system / partition on it.
My /home partition is on a HDD.
Here is an overview of the changes I made:
1. Modified the following bold options in the file /etc/fstab
        UUID=d220dffe-f66d-42a2-bd3f-303db9c8bb36 / ext4 defaults,noatime,nodiratime,discard 1 1
2. Added the following line to the end of the file /etc/rc.local
        echo deadline >/sys/block/sda/queue/scheduler

[Texstar]

I have added a Samsung 840 series SSD 120GB and put the system / partition on it.
My /home partition is on a HDD.
Here is an overview of the changes I made:
1. Modified the following bold options in the file /etc/fstab
        UUID=d220dffe-f66d-42a2-bd3f-303db9c8bb36 / ext4 defaults,noatime,nodiratime,discard 1 1
2. Added the following line to the end of the file /etc/rc.local
        echo deadline >/sys/block/sda/queue/scheduler

Here's mine.

 /etc/rc.local

echo noop > /sys/block/sda/queue/scheduler
echo 0 > /sys/block/sda/queue/add_random
echo 0 > /sys/block/sda/queue/rq_affinity
echo 1 > /proc/sys/vm/swappiness

/etc/fstab
UUID=6d0239e7-ff31-4406-86bc-d755bf76682e / ext4 defaults,noatime,discard   0  1

[JohnW_57]

Lol, so many configurations are possible.

Mine is in fstab

Code: [Select]

# Entry for /dev/sda1 :
UUID=e9a58f1d-2a0d-466b-9b6a-becea0d1c91f / ext4 noatime,nodiratime,discard,errors=remount-ro 0 1
Also other options are possible for less writing to the ssd drive:

Code: [Select]

tmpfs   /tmp       tmpfs   defaults,noatime,mode=1777   0  0
tmpfs   /var/spool tmpfs   defaults,noatime,mode=1777   0  0
tmpfs   /var/tmp   tmpfs   defaults,noatime,mode=1777   0  0
tmpfs   /var/log   tmpfs   defaults,noatime,mode=0755   0  0

JohnW