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nickk
n00b
Joined: 04 Jun 2009
Posts: 36
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 Posted: Thu Jun 04, 2009 1:17 pm Post subject: MD autodetect breaks when upgrading kernel to 2.6.28-r5 |
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I am running currently amd64 system with 2.6.22-gentoo-r8 kernel, it boots from MD raid1 device (md0) and works fine.
I am trying to upgrade kernel to 2.6.28-gentoo-r5 and it cant autodetect md devices on startup (md says 0 drives detected) resulting kernel panic with VFS saying vfs cannot open root device "900" or invalid block (9,0). But all the md modules are compiled in kernel.
What to do ?
Here are my disks:
Device Boot Start End Blocks Id System
/dev/sda1 1 499 4008186 82 Linux swap / Solaris
/dev/sda2 500 1496 8008402+ fd Linux raid autodetect
/dev/sda3 1497 91201 720555412+ 5 Extended
/dev/sda5 1497 2742 10008463+ fd Linux raid autodetect
/dev/sda6 2743 3988 10008463+ fd Linux raid autodetect
/dev/sda7 3989 91201 700538391 fd Linux raid autodetect
Device Boot Start End Blocks Id System
/dev/sdb1 1 499 4008186 82 Linux swap / Solaris
/dev/sdb2 500 1496 8008402+ fd Linux raid autodetect
/dev/sdb3 1497 91201 720555412+ 5 Extended
/dev/sdb5 1497 2742 10008463+ fd Linux raid autodetect
/dev/sdb6 2743 3988 10008463+ fd Linux raid autodetect
/dev/sdb7 3989 91201 700538391 fd Linux raid autodetect
md0 consists of /dev/sda2 and /dev/sdb2.
excerpt from .config:
CONFIG_MD=y
CONFIG_BLK_DEV_MD=y
CONFIG_MD_AUTODETECT=y
CONFIG_MD_LINEAR=y
CONFIG_MD_RAID0=y
CONFIG_MD_RAID1=y
CONFIG_MD_RAID10=y
CONFIG_MD_RAID456=y
CONFIG_MD_RAID5_RESHAPE=y
CONFIG_MD_MULTIPATH=y
CONFIG_MD_FAULTY=y
CONFIG_BLK_DEV_DM=y
CONFIG_DM_DEBUG=y
CONFIG_DM_CRYPT=y
CONFIG_DM_SNAPSHOT=y
CONFIG_DM_MIRROR=y
CONFIG_DM_ZERO=y
CONFIG_DM_MULTIPATH=y
CONFIG_DM_DELAY=y |
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NeddySeagoon
Administrator
Joined: 05 Jul 2003
Posts: 54797
Location: 56N 3W
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| Posted: Thu Jun 04, 2009 7:45 pm Post subject: |
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nickk,
Grub does not care about raid devices at all - it simply ignores them, hence you can boot from raid1 but not a striped raid set.
Grub is loading your kernel here, so thats not the problem.
Your raid setup looks fine too.
I suspect that you have set | Code: | | [*] ATA SFF support |
in jumping from 2.6.22, which turns off most of the SATA drivers, hence your raid is not detected because the underlying disks are not detected.
Grub is a special case, as it loads the kernel, it has to make its own arrangements for reading the drives.
--- edit ---
changed "boot from raid0" to "boot from raid1"
_________________
Regards,
NeddySeagoon
Computer users fall into two groups:-
those that do backups
those that have never had a hard drive fail.
Last edited by NeddySeagoon on Fri Jun 05, 2009 1:19 pm; edited 1 time in total |
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nickk
n00b
Joined: 04 Jun 2009
Posts: 36
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| Posted: Fri Jun 05, 2009 9:45 am Post subject: |
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My SATA disks are on SAS1068E controller which works under fusion mpt drivers (mptbase) which are compiled in kernel too.
Here .config excerpts about that:
CONFIG_FUSION=y
CONFIG_FUSION_SPI=y
CONFIG_FUSION_SAS=y
CONFIG_FUSION_MAX_SGE=128
Here all my other SATA config settings:
CONFIG_SATA_PMP=y
CONFIG_SATA_AHCI=y
Should i switch on smth else ? |
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NeddySeagoon
Administrator
Joined: 05 Jul 2003
Posts: 54797
Location: 56N 3W
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| Posted: Fri Jun 05, 2009 1:23 pm Post subject: |
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nickk,
The fusion drivers are the low level hardware support for SCSI. You also need | Code: | │ │ < > RAID Transport Class │ │
│ │ -*- SCSI device support │ │
│ │ < > SCSI target support │ │
│ │ [*] legacy /proc/scsi/ support │ │
│ │ *** SCSI support type (disk, tape, CD-ROM) *** │ │
│ │ <*> SCSI disk support |
but thats not new, you have always needed these options for that hardware.
_________________
Regards,
NeddySeagoon
Computer users fall into two groups:-
those that do backups
those that have never had a hard drive fail. |
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nickk
n00b
Joined: 04 Jun 2009
Posts: 36
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| Posted: Fri Jun 05, 2009 9:56 pm Post subject: |
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Sure, this is on too.
And here what i found in .config by greping SCSI:
CONFIG_SCSI=y
CONFIG_SCSI_DMA=y
CONFIG_SCSI_TGT=y
CONFIG_SCSI_PROC_FS=y
CONFIG_SCSI_MULTI_LUN=y
CONFIG_SCSI_CONSTANTS=y
CONFIG_SCSI_WAIT_SCAN=m
CONFIG_SCSI_SPI_ATTRS=y
CONFIG_SCSI_SAS_ATTRS=y
CONFIG_SCSI_SAS_LIBSAS=m
CONFIG_SCSI_SAS_HOST_SMP=y
CONFIG_SCSI_SAS_LIBSAS_DEBUG=y
CONFIG_SCSI_LOWLEVEL=y |
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