Re: mounting of unknown filesystem type on RAID5 array

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would it be possible to examine the fs using 
parted or fdisk ?
--- Tim Harvey <tharvey@xxxxxxxxxxxxxxxxxx> wrote:
> Greetings,
> 
> I'm trying to mount a RAID5 array created on a
> NASAS-2040 which uses an
> embedded Linux OS which has failed.  I'm having
> trouble determining the
> filesystem type used.  I've physically connected 3
> out of the 4 drives,
> so as to start it in degraded mode and pull the data
> off.  Here are
> sections of my logs:
> 
> Jun  2 13:58:16 localhost kernel: hda:
> IBM-DJNA-351520, ATA DISK drive
> Jun  2 13:58:16 localhost kernel: hdb: Maxtor
> 5A300J0, ATA DISK drive
> Jun  2 13:58:16 localhost kernel: blk: queue
> c03fcf00, I/O limit 4095Mb
> (mask 0xffffffff)
> Jun  2 13:58:16 localhost kernel: blk: queue
> c03fd040, I/O limit 4095Mb
> (mask 0xffffffff)
> Jun  2 13:58:16 localhost kernel: hdc: Maxtor
> 5A300J0, ATA DISK drive
> Jun  2 13:58:16 localhost kernel: hdd: Maxtor
> 5A300J0, ATA DISK drive
> Jun  2 13:58:16 localhost kernel: blk: queue
> c03fd35c, I/O limit 4095Mb
> (mask 0xffffffff)
> Jun  2 13:58:16 localhost kernel: blk: queue
> c03fd49c, I/O limit 4095Mb
> (mask 0xffffffff)
> Jun  2 13:58:16 localhost kernel: ide0 at
> 0x1f0-0x1f7,0x3f6 on irq 14
> Jun  2 13:58:16 localhost kernel: ide1 at
> 0x170-0x177,0x376 on irq 15
> Jun  2 13:58:16 localhost kernel: hda: attached
> ide-disk driver.
> Jun  2 13:58:16 localhost kernel: hda: host
> protected area => 1
> Jun  2 13:58:16 localhost kernel: hda: 30033360
> sectors (15377 MB)
> w/430KiB Cache, CHS=1869/255/63
> Jun  2 13:58:16 localhost kernel: hdb: attached
> ide-disk driver.
> Jun  2 13:58:16 localhost kernel: hdb: host
> protected area => 1
> Jun  2 13:58:16 localhost kernel: hdb: 585940320
> sectors (300001 MB)
> w/2048KiB Cache, CHS=36473/255/63, UDMA(133)
> Jun  2 13:58:16 localhost kernel: hdc: attached
> ide-disk driver.
> Jun  2 13:58:16 localhost kernel: hdc: host
> protected area => 1
> Jun  2 13:58:16 localhost kernel: hdc: 585940320
> sectors (300001 MB)
> w/2048KiB Cache, CHS=36473/255/63, UDMA(133)
> Jun  2 13:58:16 localhost kernel: hdd: attached
> ide-disk driver.
> Jun  2 13:58:16 localhost kernel: hdd: host
> protected area => 1
> Jun  2 13:58:16 localhost kernel: hdd: 585940320
> sectors (300001 MB)
> w/2048KiB Cache, CHS=36473/255/63, UDMA(133)
> Jun  2 13:58:16 localhost kernel: Partition check:
> Jun  2 13:58:16 localhost kernel:  hda: hda1 hda2
> hda3
> Jun  2 13:58:16 localhost kernel:  hdb: hdb1 hdb2
> hdb3
> Jun  2 13:58:16 localhost kernel:  hdc: hdc1 hdc2
> hdc3
> Jun  2 13:58:16 localhost kernel:  hdd: hdd1 hdd2
> hdd3
> Jun  2 13:58:16 localhost kernel: ide: late
> registration of driver.
> Jun  2 13:58:16 localhost kernel: md: md driver
> 0.90.0 MAX_MD_DEVS=256,
> MD_SB_DISKS=27
> Jun  2 13:58:16 localhost kernel: md: Autodetecting
> RAID arrays.
> Jun  2 13:58:16 localhost kernel:  [events:
> 00000008]
> Jun  2 13:58:17 localhost last message repeated 2
> times
> Jun  2 13:58:17 localhost kernel: md: autorun ...
> Jun  2 13:58:17 localhost kernel: md: considering
> hdd1 ...
> Jun  2 13:58:17 localhost kernel: md:  adding hdd1
> ...
> Jun  2 13:58:17 localhost kernel: md:  adding hdc1
> ...
> Jun  2 13:58:17 localhost kernel: md:  adding hdb1
> ...
> Jun  2 13:58:17 localhost kernel: md: created md0
> Jun  2 13:58:17 localhost kernel: md: bind<hdb1,1>
> Jun  2 13:58:17 localhost kernel: md: bind<hdc1,2>
> Jun  2 13:58:17 localhost kernel: md: bind<hdd1,3>
> Jun  2 13:58:17 localhost kernel: md: running:
> <hdd1><hdc1><hdb1>
> Jun  2 13:58:17 localhost kernel: md: hdd1's event
> counter: 00000008
> Jun  2 13:58:17 localhost kernel: md: hdc1's event
> counter: 00000008
> Jun  2 13:58:17 localhost kernel: md: hdb1's event
> counter: 00000008
> Jun  2 13:58:17 localhost kernel: kmod: failed to
> exec /sbin/modprobe -s
> -k md-personality-4, errno = 2
> Jun  2 13:58:17 localhost kernel: md: personality 4
> is not loaded!
> Jun  2 13:58:17 localhost kernel: md :do_md_run()
> returned -22
> Jun  2 13:58:17 localhost kernel: md: md0 stopped.
> Jun  2 13:58:17 localhost kernel: md: unbind<hdd1,2>
> Jun  2 13:58:17 localhost kernel: md:
> export_rdev(hdd1)
> Jun  2 13:58:17 localhost kernel: md: unbind<hdc1,1>
> Jun  2 13:58:17 localhost kernel: md:
> export_rdev(hdc1)
> Jun  2 13:58:17 localhost kernel: md: unbind<hdb1,0>
> Jun  2 13:58:17 localhost kernel: md:
> export_rdev(hdb1)
> Jun  2 13:58:17 localhost kernel: md: ... autorun
> DONE.
> ...
> Jun  2 14:01:59 localhost kernel:  [events:
> 00000008]
> Jun  2 14:01:59 localhost kernel: md: bind<hdc1,1>
> Jun  2 14:01:59 localhost kernel:  [events:
> 00000008]
> Jun  2 14:01:59 localhost kernel: md: bind<hdd1,2>
> Jun  2 14:01:59 localhost kernel:  [events:
> 00000008]
> Jun  2 14:01:59 localhost kernel: md: bind<hdb1,3>
> Jun  2 14:01:59 localhost kernel: md: hdb1's event
> counter: 00000008
> Jun  2 14:01:59 localhost kernel: md: hdd1's event
> counter: 00000008
> Jun  2 14:01:59 localhost kernel: md: hdc1's event
> counter: 00000008
> Jun  2 14:01:59 localhost kernel: raid5: measuring
> checksumming speed
> Jun  2 14:01:59 localhost kernel:    8regs     : 
> 2060.800 MB/sec
> Jun  2 14:01:59 localhost kernel:    32regs    : 
> 1369.200 MB/sec
> Jun  2 14:01:59 localhost kernel:    pIII_sse  : 
> 3178.800 MB/sec
> Jun  2 14:01:59 localhost kernel:    pII_mmx   : 
> 3168.800 MB/sec
> Jun  2 14:01:59 localhost kernel:    p5_mmx    : 
> 4057.600 MB/sec
> Jun  2 14:01:59 localhost kernel: raid5: using
> function: pIII_sse
> (3178.800 MB/sec)
> Jun  2 14:01:59 localhost kernel: md: raid5
> personality registered as nr
> 4
> Jun  2 14:01:59 localhost kernel: md0: max total
> readahead window set to
> 744k
> Jun  2 14:01:59 localhost kernel: md0: 3 data-disks,
> max readahead per
> data-disk: 248k
> Jun  2 14:01:59 localhost kernel: raid5: device hdb1
> operational as raid
> disk 1
> Jun  2 14:01:59 localhost kernel: raid5: device hdd1
> operational as raid
> disk 3
> Jun  2 14:01:59 localhost kernel: raid5: device hdc1
> operational as raid
> disk 2
> Jun  2 14:01:59 localhost kernel: raid5: md0, not
> all disks are
> operational -- trying to recover array
> Jun  2 14:01:59 localhost kernel: raid5: allocated
> 4334kB for md0
> Jun  2 14:01:59 localhost kernel: raid5: raid level
> 5 set md0 active
> with 3 out of 4 devices, algorithm 2
> Jun  2 14:01:59 localhost kernel: RAID5 conf
> printout:
> Jun  2 14:01:59 localhost kernel:  --- rd:4 wd:3
> fd:1
> Jun  2 14:01:59 localhost kernel:  disk 0, s:0, o:0,
> n:0 rd:0 us:1
> dev:[dev 00:00]
> Jun  2 14:01:59 localhost kernel:  disk 1, s:0, o:1,
> n:1 rd:1 us:1
> dev:hdb1
> Jun  2 14:01:59 localhost kernel:  disk 2, s:0, o:1,
> n:2 rd:2 us:1
> dev:hdc1
> Jun  2 14:01:59 localhost kernel:  disk 3, s:0, o:1,
> n:3 rd:3 us:1
> dev:hdd1
> Jun  2 14:01:59 localhost kernel: RAID5 conf
> printout:
> Jun  2 14:01:59 localhost kernel:  --- rd:4 wd:3
> fd:1
> 
=== message truncated ===



	
		
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