HS-DHGL の復旧

Debian HS-DHGL
ビデオ録画サーバ兼内向きサーバの HS-DHGL が反応しなくなった。
sda2 パーティションの異常のようである。 HDD を USB で LS-QL に接続して、xfs_repair を実行してみる

LS-QL への接続

USB で接続する 
Oct 15 10:41:46 qube kernel: usb 2-1: new high speed USB device using ehci_marvell and address 2
Oct 15 10:41:46 qube kernel: usb 2-1: configuration #1 chosen from 1 choice
Oct 15 10:41:46 qube kernel: scsi2 : SCSI emulation for USB Mass Storage devices
Oct 15 10:41:51 qube kernel: scsi 2:0:0:0: Direct-Access     ViPowER  VP-89118(SD1)    2.10 PQ: 0 ANSI: 4
Oct 15 10:41:51 qube kernel: sd 2:0:0:0: [sdc] 1953525168 512-byte hardware sectors (1000205 MB)
Oct 15 10:41:51 qube kernel: sd 2:0:0:0: [sdc] Write Protect is off
Oct 15 10:41:51 qube kernel: sd 2:0:0:0: [sdc] 1953525168 512-byte hardware sectors (1000205 MB)
Oct 15 10:41:51 qube kernel: sd 2:0:0:0: [sdc] Write Protect is off
Oct 15 10:41:51 qube kernel: sdc: sdc1 sdc2 sdc3 sdc4
Oct 15 10:41:51 qube kernel: sd 2:0:0:0: [sdc] Attached SCSI disk
Oct 15 10:41:51 qube kernel: sd 2:0:0:0: Attached scsi generic sg2 type 0
sdc として認識

xfs_repair の実行

root@qube:~# xfs_repair /dev/sdc2
Phase 1 - find and verify superblock...
Phase 2 - using internal log
        - zero log...
ERROR: The filesystem has valuable metadata changes in a log which needs to
be replayed.  Mount the filesystem to replay the log, and unmount it before
re-running xfs_repair.  If you are unable to mount the filesystem, then use
the -L option to destroy the log and attempt a repair.
Note that destroying the log may cause corruption -- please attempt a mount
of the filesystem before doing this.
root@qube:~#
「もう一回 xfs_repair を実行する前に このファイルシステムをマウントして アンマウントしろ」と書いてある（ように読める）
指示通りにやってみる。 
root@qube:~# mkdir /tmp/sdc2
root@qube:~# mount /dev/sdc2 /tmp/sdc2/
root@qube:~# umount /tmp/sdc2/
root@qube:~# !xfs_
xfs_repair /dev/sdc2
Phase 1 - find and verify superblock...
Phase 2 - using internal log
        - zero log...
        - scan filesystem freespace and inode maps...
expected level -1 got 0 in btcnt block 0/2
bad btree nrecs (1, min=170, max=340) in btcnt block 0/2
block (1,40594-40594) multiply claimed by cnt space tree, state - 2
agf_freeblks 209168, counted 209167 in ag 1
inode chunk claims used block, inobt block - agno 1, bno 4, inopb 16
sb_fdblocks 875930, counted 625423
        - found root inode chunk
Phase 3 - for each AG...
        - scan and clear agi unlinked lists...
found inodes not in the inode allocation tree
        - process known inodes and perform inode discovery...
        - agno = 0
bad attribute format 0 in inode 128, resetting value
imap claims a free inode 130 is in use, correcting imap and clearing inode
cleared realtime summary inode 130
        - agno = 1
        - agno = 2
        - agno = 3
imap claims a free inode 12975886 is in use, correcting imap and clearing inode
cleared inode 12975886
        - process newly discovered inodes...
Phase 4 - check for duplicate blocks...
        - setting up duplicate extent list...
        - check for inodes claiming duplicate blocks...
        - agno = 0
entry "mnt" at block 0 offset 64 in directory inode 128 references non-existent inode 4194368
        clearing inode number in entry at offset 64...
	:
	:
resetting inode 12842479 nlinks from 10 to 6
resetting inode 12842485 nlinks from 4 to 2
resetting inode 12842486 nlinks from 4 to 3
resetting inode 12842487 nlinks from 5 to 3
resetting inode 12842488 nlinks from 3 to 2
resetting inode 12842489 nlinks from 3 to 2
resetting inode 12842492 nlinks from 3 to 2
resetting inode 12842496 nlinks from 3 to 2
resetting inode 12842497 nlinks from 5 to 3
resetting inode 12842502 nlinks from 7 to 4
resetting inode 12842503 nlinks from 3 to 2
resetting inode 12844346 nlinks from 2 to 1
resetting inode 12851283 nlinks from 4 to 2
resetting inode 12851286 nlinks from 2 to 1
resetting inode 12851287 nlinks from 3 to 2
resetting inode 12851316 nlinks from 7 to 4
resetting inode 12853972 nlinks from 21 to 12
resetting inode 12853982 nlinks from 10 to 6
resetting inode 12853986 nlinks from 9 to 6
resetting inode 12854007 nlinks from 6 to 4
resetting inode 12854008 nlinks from 3 to 2
resetting inode 12868674 nlinks from 7 to 4
resetting inode 12868677 nlinks from 3 to 2
done
root@qube:~#
なんか、大量のメッセージが。。。
もう一回実行 
root@qube:~# xfs_repair /dev/sdc2
Phase 1 - find and verify superblock...
Phase 2 - using internal log
        - zero log...
        - scan filesystem freespace and inode maps...
        - found root inode chunk
Phase 3 - for each AG...
        - scan and clear agi unlinked lists...
        - process known inodes and perform inode discovery...
        - agno = 0
        - agno = 1
        - agno = 2
        - agno = 3
        - process newly discovered inodes...
Phase 4 - check for duplicate blocks...
        - setting up duplicate extent list...
        - check for inodes claiming duplicate blocks...
        - agno = 0
        - agno = 1
        - agno = 2
        - agno = 3
Phase 5 - rebuild AG headers and trees...
        - reset superblock...
Phase 6 - check inode connectivity...
        - resetting contents of realtime bitmap and summary inodes
        - traversing filesystem ...
        - traversal finished ...
        - moving disconnected inodes to lost+found ...
Phase 7 - verify and correct link counts...
done
root@qube:~#
すっきりしたみたい。

マウントして確認

/dev/sdc2 をマウントして、中身を確認する。 
root@qube:~# mount /dev/sdc2 /tmp/sdc2/
root@qube:~# ls /tmp/sdc2/
bin  boot  lost+found  opt  root  srv  sys  usr  var
root@qube:~#
一見正常に見えるが、、、/dev とか /etc とか、、、どこ行った？？

リストア

バックアップからリストアする 
root@qube:~# cd /tmp/sdc2/
root@qube:/tmp/sdc2# ls /mnt/Backup/linkstation/sil/*Sat*
/mnt/Backup/linkstation/sil/sil-bin.Sat.tar.gz
/mnt/Backup/linkstation/sil/sil-boot.Sat.tar.gz
/mnt/Backup/linkstation/sil/sil-buffalo.Sat.tar.gz
/mnt/Backup/linkstation/sil/sil-dev.Sat.tar.gz
/mnt/Backup/linkstation/sil/sil-etc.Sat.tar.gz
/mnt/Backup/linkstation/sil/sil-home.Sat.tar.gz
/mnt/Backup/linkstation/sil/sil-initrd.Sat.tar.gz
/mnt/Backup/linkstation/sil/sil-lib.Sat.tar.gz
/mnt/Backup/linkstation/sil/sil-media.Sat.tar.gz
/mnt/Backup/linkstation/sil/sil-opt.Sat.tar.gz
/mnt/Backup/linkstation/sil/sil-root.Sat.tar.gz
/mnt/Backup/linkstation/sil/sil-sbin.Sat.tar.gz
/mnt/Backup/linkstation/sil/sil-selinux.Sat.tar.gz
/mnt/Backup/linkstation/sil/sil-srv.Sat.tar.gz
/mnt/Backup/linkstation/sil/sil-sys.Sat.tar.gz
/mnt/Backup/linkstation/sil/sil-usr.Sat.tar.gz
/mnt/Backup/linkstation/sil/sil-var.Sat.tar.gz
/mnt/Backup/linkstation/sil/sil-yasunari.Sat.tar.gz
root@qube:/tmp/sdc2#
/bin とかは xfs_repair 後も HDD に残っていたが、 信用出来ないので、全部上書きリストアする。 
root@qube:/tmp/sdc2# tar zxvf /mnt/Backup/linkstation/sil/sil-bin.Sat.tar.gz
bin/
bin/gzexe
	:
	:
root@qube:/tmp/sdc2# tar zxvf /mnt/Backup/linkstation/sil/sil-dev.Sat.tar.gz
	:
	:
root@qube:/tmp/sdc2# ^dev^etc
tar zxvf /mnt/Backup/linkstation/sil/sil-etc.Sat.tar.gz
etc/
etc/default/
	:
	:
root@qube:/tmp/sdc2# ^etc^home
tar zxvf /mnt/Backup/linkstation/sil/sil-home.Sat.tar.gz
	:
	:
root@qube:/tmp/sdc2# tar zxvf /mnt/Backup/linkstation/sil/sil-lib.Sat.tar.gz
	:
	:
root@qube:/tmp/sdc2# ^lib^media
tar zxvf /mnt/Backup/linkstation/sil/sil-media.Sat.tar.gz
media/
root@qube:/tmp/sdc2# ^media^opt
tar zxvf /mnt/Backup/linkstation/sil/sil-opt.Sat.tar.gz
opt/
root@qube:/tmp/sdc2# ^opt^root
tar zxvf /mnt/Backup/linkstation/sil/sil-root.Sat.tar.gz
root/
	:
	:
root@qube:/tmp/sdc2# ^root^sbin
tar zxvf /mnt/Backup/linkstation/sil/sil-sbin.Sat.tar.gz
sbin/
	:
	:
root@qube:/tmp/sdc2# ^sbin^selinux
tar zxvf /mnt/Backup/linkstation/sil/sil-selinux.Sat.tar.gz
selinux/
root@qube:/tmp/sdc2# ^selinux^srv
tar zxvf /mnt/Backup/linkstation/sil/sil-srv.Sat.tar.gz
srv/
root@qube:/tmp/sdc2# tar zxvf /mnt/Backup/linkstation/sil/sil-usr.Sat.tar.gz
	:
	:
root@qube:/tmp/sdc2# ^usr^var
tar zxvf /mnt/Backup/linkstation/sil/sil-var.Sat.tar.gz
	:
	:
root@qube:/tmp/sdc2#
マウントポイントも作る 
root@qube:/tmp/sdc2# mkdir initrd
root@qube:/tmp/sdc2# mkdir mnt
root@qube:/tmp/sdc2# mkdir proc
root@qube:/tmp/sdc2# mkdir srv
root@qube:/tmp/sdc2# mkdir sys
root@qube:/tmp/sdc2# mkdir tmp
root@qube:/tmp/sdc2# chmod 1777 tmp
root@qube:/tmp/sdc2#
こんなところか、、、

lost+found

そういえば、紛失物預り所があった。 
root@qube:/tmp/sdc2# ls lost+found/
12583044  12626872  12703681  8429797  8460062  8472190  8591837  8778093
12583046  12626877  12703687  8429799  8460066  8472195  8591838  8778094
12583049  12626911  12703710  8429803  8460091  8472207  8602726  8778095
12583062  12627872  12703713  8429806  8460094  8472209  8602736  8778096
12583066  12627873  12703725  8429808  8461454  8472229  8602738  8778097
12583071  12627907  12704736  8429813  8461462  8472265  8602741  8778129
12583077  12636584  12704737  8429817  8461493  8472271  8602743  8778137
12583080  12636603  12704756  8429824  8461494  8472275  8607430  8778154
12583081  12636626  12706934  8429829  8461495  8472279  8607436  8778237
12583101  12638399  12708729  8429831  8461496  8472281  8607437  8778238
12583103  12638407  12774338  8429841  8461497  8476082  8607438  8778239
12584465  12638417  12774342  8430886  8461500  8477761  8607439  8778240
12584468  12646541  12774346  8430887  8462499  8477800  8607440  8791520
12584469  12646574  12774351  8430929  8462511  8477802  8607441  8791521
12584472  12656660  12774356  8430933  8462514  8484038  8607442  8791522
12584495  12656687  12835557  8430936  8462524  8484040  8607443  8791523
12584508  12656695  12839220  8430942  8462527  8484054  8607444  8791524
12588032  12676449  12839222  8437730  8462537  8484088  8607445  8791555
12588039  12676451  12839224  8437733  8462547  8484089  8607446  8791556
12588042  12676467  12839226  8437744  8463174  8484091  8607447  8791557
12588045  12676479  12840236  8437751  8463179  8491892  8607448  8791558
12588051  12676482  12840261  8437754  8463181  8491895  8607449  8791559
12588055  12676485  12840268  8437757  8463207  8491899  8607450  8791650
12588058  12676488  12840287  8437762  8463209  8491901  8607451  8791714
12588073  12676489  12842474  8437766  8463225  8491908  8607452  8791716
12588084  12676509  12842478  8437771  8463227  8491914  8607453  8791717
12588091  12677366  12842479  8437779  8470391  8491932  8607454  8791718
12588095  12677367  12842485  8437785  8470393  8493129  8607455  8791732
12589735  12677368  12842486  8437787  8470406  8493132  8610128  8791733
12589743  12677369  12842487  8439780  8470408  8493136  8610130  8791734
12589747  12677370  12842488  8439782  8470431  8493139  8610131  8791735
12589751  12677371  12842489  8439792  8471906  8493142  8610134  8791736
12589757  12677377  12842490  8439796  8471928  8493147  8610140  8791766
12589761  12677381  12842492  8439800  8471934  8493151  8610142  8791767
12589768  12677383  12842494  8439805  8471956  8493161  8617188  8791769
12589791  12677384  12842496  8439810  8471966  8493164  8617190  8791770
12591941  12677385  12842497  8439815  8471971  8493170  8617217  8800247
12591950  12677386  12842498  8439821  8471984  8493172  8617219  8800261
12591955  12677387  12851316  8439826  8471991  8493176  8617221  8800265
12591959  12677388  12851318  8439828  8471992  8493183  8617223  8800266
12591964  12677389  12851319  8439831  8471993  8495528  8620064  8800267
12591968  12677397  12851320  8439832  8471994  8495530  8620123  8800269
12591972  12677398  12853973  8442566  8471995  8495533  8634456  8800270
12591981  12677399  12853974  8442570  8471996  8495538  8634460  8800271
12591987  12677400  12853993  8442578  8471997  8495541  8634462  8800273
12591991  12677401  12853994  8442582  8472004  8495553  8664198  8800274
12591998  12677402  12853995  8442585  8472005  8495555  8664209  8800275
12595334  12677403  12853996  8442593  8472006  8495564  8716514  8800277
12595341  12697060  12853998  8442597  8472007  8495566  8731943  8800279
12595348  12697061  12854000  8442599  8472008  8498605  8731968  8800280
12595353  12697062  12854002  8442605  8472009  8498619  8731969  8800281
12597613  12697063  12854004  8442606  8472010  8498622  8731970  8804904
12606169  12697064  12854006  8442611  8472017  8499495  8731971  8804912
12606223  12697065  12854011  8442614  8472018  8499509  8731972  8804918
12606232  12697066  12868675  8442621  8472019  8499544  8731973  8804921
12606233  12697069  12868678  8446560  8472020  8500766  8731974  8804939
12606240  12697076  12868724  8446564  8472021  8500841  8731975  8804940
12606244  12697078  12975887  8446567  8472022  8500845  8731976  8804941
12606251  12697079  12975888  8446572  8472023  8507305  8731977  8804942
12606254  12697080  13313441  8446580  8472030  8507306  8731978  8804943
12606257  12697081  13313442  8449818  8472031  8507314  8731979  8804944
12606265  12697084  13313446  8449823  8472160  8510659  8731980  8804945
12606269  12697091  13313448  8449831  8472161  8510661  8731981  8804946
12611553  12697093  13313456  8449833  8472162  8510683  8731982  8804947
12611557  12697094  13313458  8449837  8472163  8510702  8731983  8804948
12611561  12697096  13313461  8449845  8472164  8512902  8756550  8804949
12611582  12697097  13313463  8449850  8472171  8520251  8756552  8804950
12615245  12697098  13313482  8449853  8472172  8520252  8756553  8804958
12615295  12697100  13313502  8455328  8472173  8520253  8756560  8883392
12618425  12697101  13313503  8455333  8472174  8533309  8756574  8883393
12624031  12697102  8429698   8455341  8472175  8533311  8756585  8883413
12624035  12697106  8429699   8455346  8472176  8542831  8756587  8883414
12624040  12697108  8429718   8455351  8472177  8542844  8756589  8883528
12624048  12697110  8429743   8455355  8472184  8542858  8764844  8883529
12624050  12697112  8429744   8455362  8472185  8542860  8764895
12626859  12702832  8429747   8455367  8472186  8542862  8777979
12626861  12702836  8429749   8457619  8472187  8542865  8777985
12626864  12702840  8429793   8457649  8472188  8542867  8777991
12626870  12702845  8429796   8457650  8472189  8542869  8778092
root@qube:/tmp/sdc2#
大量の紛失物。
リストアしたし、消しておく 
root@qube:/tmp/sdc2# df
Filesystem           1K-blocks      Used Available Use% Mounted on
/dev/md1               4993920    357048   4636872   8% /
tmpfs                    62888         0     62888   0% /lib/init/rw
tmpfs                    62888         0     62888   0% /dev/shm
/dev/root.old            31729     16849     14880  54% /initrd
/dev/md0                995928    179508    816420  19% /boot
/dev/sda6            236216764  12453368 223763396   6% /mnt/disk1
/dev/sdb6            968628556 847560036 121068520  88% /mnt/disk2
/dev/sdc2              3997976    684144   3313832  18% /tmp/sdc2
root@qube:/tmp/sdc2# rm -fr lost+found/*
root@qube:/tmp/sdc2# df
Filesystem           1K-blocks      Used Available Use% Mounted on
/dev/md1               4993920    357048   4636872   8% /
tmpfs                    62888         0     62888   0% /lib/init/rw
tmpfs                    62888         0     62888   0% /dev/shm
/dev/root.old            31729     16849     14880  54% /initrd
/dev/md0                995928    179508    816420  19% /boot
/dev/sda6            236216764  12453368 223763396   6% /mnt/disk1
/dev/sdb6            968628556 847560036 121068520  88% /mnt/disk2
/dev/sdc2              3997976    494248   3503728  13% /tmp/sdc2
root@qube:/tmp/sdc2#
5% 程が紛失物だった模様

さて、こんなところか。。。

HDD を HS-DHGL に戻す

root@qube:/tmp/sdc2# cd /
root@qube:/# umount /tmp/sdc2/
root@qube:/#

起動

Orion1   CPU =  Low

=== BUFFALO LS-GL U-Boot. ===
 ** LOADER **
 ** BUFFALO BOARD: BUFFALO_BOARD_LS_GL LE (CFG_ENV_ADDR=fffff000)


U-Boot 1.1.1 (Apr 18 2007 - 18:35:44) Marvell version: 1.12.1 - TINY

DRAM CS[0] base 0x00000000   size 128MB
DRAM Total size 128MB
[256kB@fffc0000] [0kB@f8000000] ## Unknown FLASH at f8000000: Size = 0x00000000 = 0 MB
Flash: 256 kB
Addresses 20M - 0M are saved for the U-Boot usage.
Mem malloc Initialization (20M - 16M): Done

Soc: 88F5182 A2
CPU: ARM926 (Rev 0) running @ 400Mhz
Orion 1 streaming disabled
SysClock = 200Mhz , TClock = 166Mhz


USB 0: host mode
USB 1: host mode
PCI 0: PCI Express Root Complex Interface
PCI 1: Conventional PCI, speed = 33000000
Net:   egiga0 [PRIME]
Using 88E1118 phy

Marvell Serial ATA Adapter
Integrated Sata device found
  Device 0: OK
Model: SAMSUNG HD103UJ                          Firm: 1AA01114 Ser#: S1B9J9AQC00304
            Type: Hard Disk
            Supports 48-bit addressing
            Capacity: 953869.7 MB = 931.5 GB (1953525168 x 512)

Using device ide0, partition 1

Loading from block device ide device 0, partition 1: Name: hda1
  Type: U-Boot  File:/initrd.buffalo

4697439 bytes read
Using device ide1, partition 1
** Bad partition 1 **
Booting from Device 0
hit any key to switch tftp boot.
Hit any key to stop autoboot:  0
Hit any key to stop autoboot:  0

Reset IDE:
Marvell Serial ATA Adapter
Integrated Sata device found
  Device 0: OK
Model: SAMSUNG HD103UJ                          Firm: 1AA01114 Ser#: S1B9J9AQC00304
            Type: Hard Disk
            Supports 48-bit addressing
            Capacity: 953869.7 MB = 931.5 GB (1953525168 x 512)

Using device ide0, partition 1

Loading from block device ide device 0, partition 1: Name: hda1
  Type: U-Boot  File:/uImage.buffalo

1834908 bytes read
Using device ide1, partition 1
** Bad partition 1 **
<<stop_sound>>
## Booting image at 00100000 ...
   Image Name:   Linux-2.6.16.16-arm1
   Created:      2007-08-31   4:07:21 UTC
   Image Type:   ARM Linux Kernel Image (uncompressed)
   Data Size:    1834844 Bytes =  1.7 MB
   Load Address: 00008000
   Entry Point:  00008000
   Verifying Checksum ... OK
OK
## Loading Ramdisk Image at 00800000 ...
   Image Name:   initrd
   Created:      2009-07-02  12:44:53 UTC
   Image Type:   ARM Linux RAMDisk Image (gzip compressed)
   Data Size:    4697375 Bytes =  4.5 MB
   Load Address: 00000000
   Entry Point:  00000000
   Verifying Checksum ... OK

Starting kernel ...

arg:console=ttyS0,115200 root=/dev/sda2 rw initrd=0x00800040,15M panic=5 BOOTVER=1.10
CONFIG_BUFFALO_PLATFORM CONFIG_BUFFALO_LINKSTATION_LSGL ---
Uncompressing Linux....................................................................................................................... done, booting the kernel.
Linux version 2.6.16.16-arm1 (root@dh2-bs) (gcc version 3.4.4 (release) (CodeSourcery ARM 2005q3-2)) #6 Fri Aug 31 13:07:15 JST 2007
CPU: ARM926EJ-Sid(wb) [41069260] revision 0 (ARMv5TEJ)
Machine: MV-88fxx81
Using UBoot passing parameters structure
Sys Clk = 200000000, Tclk = 166664740
	:
	:
EOF Detect.
Daemoning....
killall: mt-daapd: no process killed
Start services: EPGd iRCommander
EPGd : version 1.1.0
0.2.0
Starting clientUtil_server:starting on eth0
Starting services: rarpd tftpd rarpcfgd fwupdated.

Debian GNU/Linux 5.0 sil ttyS0

sil login: Start services: mediaserver
                                      HwCtrlPid = [1528]
無事立ち上がってきた。

やれやれ


HS-DHGL
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