[sisyphus] Re: raidstart

[Aleksey Avdeev]

Salavat Yarmukhametov пишет:
> On Thu, Jun 05, 2003 at 04:56:04PM +0300, Michael Shigorin wrote:
> 
>>On Thu, Jun 05, 2003 at 12:37:44PM +0400, Salavat Yarmukhametov wrote:
>>
>>>   3. The partition-types of the devices used in the RAID must be set to
>>>0xFD (use fdisk and set the type to ``fd'')
>>>^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
>>>	п.3 я не делал, может это? Вечером попробую - машина домашняя.
>>
>>Ну разумеется.
> 
> 
> 
> Неа :(
> [root на localhost root]# fdisk /dev/hdb
> Command (m for help): p
> Disk /dev/hdb: 20.5 GB, 20547841536 bytes
> 255 heads, 63 sectors/track, 2498 cylinders
> Units = cylinders of 16065 * 512 = 8225280 bytes
> 
>    Device Boot    Start       End    Blocks   Id  System
> /dev/hdb1   *         1      1211   9727326    c  Win95 FAT32 (LBA)
> /dev/hdb2          1212      2498  10337827+  fd  Linux raid autodetect
> [root на localhost root]# fdisk /dev/hde
> Command (m for help): p
> 
> Disk /dev/hde: 61.4 GB, 61492838400 bytes
> 16 heads, 63 sectors/track, 119150 cylinders
> Units = cylinders of 1008 * 512 = 516096 bytes
> 
>    Device Boot    Start       End    Blocks   Id  System
> /dev/hde1             1     20318  10240240+  fd  Linux raid autodetect
> /dev/hde2         20319     60953  20480040   83  Linux
> /dev/hde3         60954    119150  29331288    5  Extended
> /dev/hde5         60954    101588  20480008+  83  Linux
> /dev/hde6        101589    117030   7782736+  83  Linux
> /dev/hde7        117031    119062   1024096+  83  Linux
> /dev/hde8        119063    119150     44320+  83  Linux
> 
> 
> dmesg:
> 
> md: md driver 0.90.0 MAX_MD_DEVS=256, MD_SB_DISKS=27
> md: Autodetecting RAID arrays.
>  [events: 00000002]
>  [events: 00000002]
> md: autorun ...
> md: considering hde1 ...
> md:  adding hde1 ...
> md:  adding hdb2 ...
> md: created md0
> md: bind<hdb2,1>
> md: bind<hdb2,1>
> md: bind<hde1,2>
> md: running: <hde1><hdb2>
> md: hde1's event counter: 00000002
> md: hdb2's event counter: 00000002
> md: md0: raid array is not clean -- starting background reconstruction
> md: RAID level 1 does not need chunksize! Continuing anyway.
> kmod: failed to exec /sbin/modprobe -s -k md-personality-3, errno = 2
> md: personality 3 is not loaded!
> md :do_md_run() returned -22
> md: md0 stopped.
> md: unbind<hde1,1>
> md: export_rdev(hde1)
> md: unbind<hdb2,0>
> md: export_rdev(hdb2)
> md: ... autorun DONE.

   Если дальше покопаться в логах, непомню в каких имеено файлах 
/var/log/kernel/* (я смотрел все :-)) или внимательно посмотреть 
на сообщения при загрузке, то можно заметить что приведённая 
цитата присутствует ДО сообщения о монтировании initrd с 
требуемыми модулями (почему я и сделал вывод о некорректной 
работе автораида в модульной конфигурации :-() и, соответственно, 
  реального корня.

> 
> если после загрузки дать:
> raidstart /dev/md0
> то в /var/log/messages:
> Jun  5 18:58:29 localhost kernel:  [events: 00000002]
> Jun  5 18:58:29 localhost kernel:  [events: 00000002]
> Jun  5 18:58:29 localhost kernel: md: autorun ...
> Jun  5 18:58:29 localhost kernel: md: considering hde1 ...
> Jun  5 18:58:29 localhost kernel: md:  adding hde1 ...
> Jun  5 18:58:29 localhost kernel: md:  adding hdb2 ...
> Jun  5 18:58:29 localhost kernel: md: created md0
> Jun  5 18:58:29 localhost kernel: md: bind<hdb2,1>
> Jun  5 18:58:29 localhost kernel: md: bind<hde1,2>
> Jun  5 18:58:29 localhost kernel: md: running: <hde1><hdb2>
> Jun  5 18:58:29 localhost kernel: md: hde1's event counter: 00000002
> Jun  5 18:58:29 localhost kernel: md: hdb2's event counter: 00000002
> Jun  5 18:58:29 localhost kernel: md: RAID level 1 does not need
> chunksize! Continuing anyway.
> Jun  5 18:58:29 localhost kernel: md0: max total readahead window set to
> 508k
> Jun  5 18:58:29 localhost kernel: md0: 1 data-disks, max readahead per
> data-disk:
> 508k
> Jun  5 18:58:29 localhost kernel: raid1: device hde1 operational as mirror
> 1
> Jun  5 18:58:29 localhost kernel: raid1: device hdb2 operational as mirror
> 0
> Jun  5 18:58:29 localhost kernel: raid1: raid set md0 active with 2 out of
> 2 mirrors
> Jun  5 18:58:29 localhost kernel: md: updating md0 RAID superblock on
> device
> Jun  5 18:58:29 localhost kernel: md: hde1 [events: 00000003]<6>(write)
> hde1's sb
> offset: 10240128
> Jun  5 18:58:29 localhost kernel: md: syncing RAID array md0
> Jun  5 18:58:29 localhost kernel: md: minimum _guaranteed_ reconstruction
> speed: 100 KB/sec/disc.
> Jun  5 18:58:29 localhost kernel: md: using maximum available idle IO
> bandwith (but not more than 100000 KB/sec) for reconstruction.
> Jun  5 18:58:29 localhost kernel: md: using 508k window, over a total of
> 10240128
> blocks.
> Jun  5 18:58:29 localhost kernel: md: hdb2 [events: 00000003]<6>(write)
> hdb2's sb
> offset: 10337728
> Jun  5 18:58:29 localhost kernel:  [events: 00000000]
> Jun  5 18:58:29 localhost kernel: md: ... autorun DONE.
> Jun  5 18:58:35 localhost kernel: kjournald starting.  Commit interval 5
> seconds
> Jun  5 18:58:35 localhost kernel: EXT3 FS 2.4-0.9.19, 19 August 2002 on
> md(9,0), internal journal

   А теперь, требуемые модули доступны :-)

> 
> Почему raidstart из /etc/rc.d/rc.sysinit не хочет отрабатываться?
> Чего еще я не доделал?

   Что в /etc/raidtab?

-- 

С уважением. Алексей.