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Instaling Gentoo on RAID 0
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Javaskit
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PostPosted: Thu May 28, 2015 5:01 pm    Post subject: Instaling Gentoo on RAID 0 Reply with quote

Hi all,

I have a HP ENVY 15 Notebook PC and I'm trying to install Gentoo on this one. I don't know how to preparing the disks because it use Intel Rapide Storage. There are 2 disks in RAID 0 (one is a 22 GB SSD and Windows use this one for improve the performance of the system). I would like dual boot with Windows. Sorry for my English !



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schentuu
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PostPosted: Thu May 28, 2015 5:18 pm    Post subject: Reply with quote

Are you sure this is RAID 0?
RAID 0 out of two different disks (HDD ans SSD) makes no real sense.
Or is it possible that the physical drive just contains 2 disks, an HDD and an HDD, without RAID?
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NeddySeagoon
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PostPosted: Thu May 28, 2015 5:22 pm    Post subject: Reply with quote

Javaskit,

Is this a compound drive that uses the SSD area as cache for the real HDD?
Linux can support these too.
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those that do backups
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Javaskit
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PostPosted: Thu May 28, 2015 8:13 pm    Post subject: Reply with quote

NeddySeagoon,

You're right but I don't know how to install gentoo and how to configure this setting in Linux.
In the BIOS there is an entry UEFI Device Configuration --> Intel(R) Rapid Storage Technology (this formset allows the user to manage RAID volumes on Intel(R) RAID Controller) --> Intel(R) RST 12.0.0.1783 SATA Driver --> Raid Volumes:
DISK ID 0, RAID0(Stripe), 931.5 GB, Normal (the value of the entry Status is "Non-Raid")
Volume_0000, RAID0(Cache), 22.4 GB, Normal (the value of the entry Status is "Cache" and the SSD is LMS-24L6M-HP).
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schentuu
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PostPosted: Thu May 28, 2015 9:03 pm    Post subject: Reply with quote

Javaskit wrote:
DISK ID 0, RAID0(Stripe), 931.5 GB, Normal (the value of the entry Status is "Non-Raid")

Thats exactly what i estimated. Its a combo drive, no RAID.
It can be configured as a part of an RAID, if you add a second combo drive.

At the moment it is "Non-Raid" ... A RAID-0 with only one drive is no RAID

Since i did never had my hands on such an device, i can only guess.

I think that linux consideres it as two differend devices.
For example /dev/sda and /dev/sdb

If this is the case, the installation would be sraight forward.
Just create partitions and keep in mind to configure differend devices in /etc/fstab
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Javaskit
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PostPosted: Thu May 28, 2015 10:02 pm    Post subject: Reply with quote

schentuu,

I get this output using parted -l from SystemRescueCd :
Code:

root@Host-001 /root % parted -l
Warning: Not all of the space available to /dev/sda appears to be used, you can
fix the GPT to use all of the space (an extra 4521 blocks) or continue with the
current setting?
Fix/Ignore? Ignore                                                       
Model: ATA HGST HTS541010A9 (scsi)
Disk /dev/sda: 1000GB
Sector size (logical/physical): 512B/4096B
Partition Table: gpt
Disk Flags:

Number  Start   End     Size    File system  Name                          Flags
 1      1049kB  420MB   419MB   ntfs         Basic data partition          hidden, diag
 2      420MB   693MB   273MB   fat32        EFI system partition          boot, esp
 3      693MB   827MB   134MB                Microsoft reserved partition  msftres
 4      827MB   979GB   978GB   ntfs         Basic data partition          msftdata
 5      979GB   1000GB  21.2GB  ntfs         Basic data partition          hidden, msftdata


Error: /dev/sdb: unrecognised disk label
Model: ATA LITEONIT LMS-24L (scsi)                                       
Disk /dev/sdb: 24.0GB
Sector size (logical/physical): 512B/512B
Partition Table: unknown
Disk Flags:

Model: Verbatim STORE N GO (scsi)
Disk /dev/sdc: 8023MB
Sector size (logical/physical): 512B/512B
Partition Table: msdos
Disk Flags:

Number  Start   End     Size    Type     File system  Flags
 1      32.3kB  8023MB  8023MB  primary  fat32


Error: end of file while reading /dev/md124
Retry/Ignore/Cancel? Ignore                                               
Error: The backup GPT table is corrupt, but the primary appears OK, so that will
be used.
OK/Cancel? Ok                                                             
Model: Linux Software RAID Array (md)
Disk /dev/md124: 1000GB
Sector size (logical/physical): 512B/4096B
Partition Table: gpt
Disk Flags:

Number  Start   End     Size    File system  Name                          Flags
 1      1049kB  420MB   419MB   ntfs         Basic data partition          hidden, diag
 2      420MB   693MB   273MB   fat32        EFI system partition          boot, esp
 3      693MB   827MB   134MB                Microsoft reserved partition  msftres
 4      827MB   979GB   978GB   ntfs         Basic data partition          msftdata
 5      979GB   1000GB  21.2GB  ntfs         Basic data partition          hidden, msftdata


Error: /dev/md126: unrecognised disk label
Model: Linux Software RAID Array (md)                                     
Disk /dev/md126: 24.0GB
Sector size (logical/physical): 512B/512B
Partition Table: unknown
Disk Flags:





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Javaskit
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PostPosted: Sat May 30, 2015 6:23 am    Post subject: Reply with quote

I used /dev/md124 to partition disk and I installed Gentoo. However at system boot with UEFI (I don't used GRUB2) : "The selected boot device failed".


EDIT: I deleted RAID 0 in bios and I installed Gentoo on hard disk.


Java
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