I have seen many people trying to install Ubuntu on laptops like the Lenovo U410 and fail. Sometimes,we have to give up the SSD cache. Have the developers solved it now? Can we install Ubuntu on an Ultrabook like U410 without loosing the SSD cache?
Links to the issue :
- http://forums.lenovo.com/t5/IdeaPad-Y-U-V-Z-and-P-series/Lenovo-U410-Cannot-access-to-BIOS/td-p/877703/page/2
- http://forums.lenovo.com/t5/Linux-Discussion/Installing-Ubuntu-12-04-on-Ultrabook-U410/td-p/871873
- http://ubuntuforums.org/showthread.php?t=2023374
Here's one problem :
I recently bought a U410 ultrabook. With the factory settings, the ubuntu installer does not detect any disks on the system. The problem is known and has something to do with the SSD, Intel Smart response technology and the disks' RAID configuration (See Unable to install 12.04 on a Lenovo U410 Ultrabook and http://ubuntuforums.org/showthread.php?t=1825132) Is there a way around this problem without having to remove the existing Windows installation? Also in case not, does my warranty get void if I remove the pre-loaded windows installation? An Ubuntu system is essential for me so I need to get it installed somehow. Would appreciate some pointers.
The only solution is to disable SSD cache and install windows to SSD (I don't think 24GB will be enough) :
- Disabe RAID (select ACHI in BIOS)
- Install windows to SSD.
- Move user data and pagefile to HDD. Disable file indexing on SSD. Install most not system programs to HDD to economy free space. It will be even faster than cache, but you need to install big programs and games on D:. Not every man can do it. Thats why they use cache as default.
- Boot Ubuntu from CD, type in terminal "sudo apt-get remove dmraid"
- Install Ubuntu as usual
- If GRUB doesnt appear (it is because of UEFI) use Boot-Repair utility as described here https://help.ubuntu.com/community/Boot-Repair
If GRUB appears, but Ubuntu doesn't boot, then you need to break dmraid utility:
7.1 Boot Ubuntu from CD
7.2 type in terminal "sudo apt-get remove dmraid"
7.3 Open "Computer" on the desktop and open the disk where you have installed Ubuntu. On the top of the window will be some letters like 7bgetgu4uf87wch7wir6. Type in terminal "sudo rm /media/{your partition}/sbin/dmraid" where you replace {your partition} with this letters
7.4 "sudo touch /media/{your partition}/sbin/dmraid" and "sudo chmod +x /media/{your partition}/sbin/dmraid" Once you have booted ubuntu, remove dmraid in normal way (using apt-get) And the easy way is to install ubuntu with wubi. I tried it on ACHI, but there was no problems with dmraid and grub
Here's another problem :
So i bought a lenovo u410 the other day to use with linux along side my windows pc, problem is when i get to the installation screen the hard drives dont show up (500gb hdd or 32gb ssd) i also took off acceleration and put the hard drives in non raid mode but that still didnt work, i also tried wubi to see if it would run for kicks but that wont work either, can anyone help me out?