How do I run fsck?

Hello, I get about 30 error messages during the booting of Ubuntu:

I/O error, dev sda, sector xxxxxxx Buffer I/O error on device sda SCSIO: Error on channel0, id 6

I guess it's bad block in the tree. Here's my /etc/fstab:

/etc/fstab: static file system information.

#

<file system> <mount point> <type> <options> <dump> <pass>

proc /proc proc defaults 0 0 /dev/sda2 / ext3 defaults,errors=remount-ro 0 1 /dev/sda3 none swap sw 0 0 /dev/hda /media/cdrom0 udf,iso9660 ro,user,noauto 0 0

How do I run fsck? Not on a mounted partition! A running partition can't be unmounted! Then how? Is there a kernel argument in BootX?

Thanks for helping

Francois

Here's my dmesg:

ror, dev sda, sector 8899655 Buffer I/O error on device sda, logical block 8899655 scsi0: ERROR on channel 0, id 6, lun 0, CDB: Read (10) 00 00 87 cc 48 00 00 38 00 Info fld=0x87cc48, Current sda: sense key Medium Error ASC=13 ASCQ=c0 end_request: I/O error, dev sda, sector 8899656 Buffer I/O error on device sda, logical block 8899656 scsi0: ERROR on channel 0, id 6, lun 0, CDB: Read (10) 00 00 87 cc 49 00 00 37 00 Info fld=0x87cc49, Current sda: sense key Medium Error ASC=13 ASCQ=c0 end_request: I/O error, dev sda, sector 8899657 Buffer I/O error on device sda, logical block 8899657 scsi0: ERROR on channel 0, id 6, lun 0, CDB: Read (10) 00 00 87 cc 4a 00 00 36 00 Info fld=0x87cc4a, Current sda: sense key Medium Error ASC=13 ASCQ=c0 end_request: I/O error, dev sda, sector 8899658 Buffer I/O error on device sda, logical block 8899658 scsi0: ERROR on channel 0, id 6, lun 0, CDB: Read (10) 00 00 87 cc 4b 00 00 35 00 Info fld=0x87cc4b, Current sda: sense key Medium Error Additional sense: Unrecovered read error end_request: I/O error, dev sda, sector 8899659 Buffer I/O error on device sda, logical block 8899659 scsi0: ERROR on channel 0, id 6, lun 0, CDB: Read (10) 00 00 87 cc 4c 00 00 34 00 Info fld=0x87cc4c, Current sda: sense key Medium Error ASC=13 ASCQ=c0 end_request: I/O error, dev sda, sector 8899660 Buffer I/O error on device sda, logical block 8899660 scsi0: ERROR on channel 0, id 6, lun 0, CDB: Read (10) 00 00 87 cc 4d 00 00 33 00 Info fld=0x87cc4d, Current sda: sense key Medium Error ASC=13 ASCQ=c0 end_request: I/O error, dev sda, sector 8899661 Buffer I/O error on device sda, logical block 8899661 scsi0: ERROR on channel 0, id 6, lun 0, CDB: Read (10) 00 00 87 cc 4e 00 00 32 00 Info fld=0x87cc4e, Current sda: sense key Medium Error ASC=13 ASCQ=c0 end_request: I/O error, dev sda, sector 8899662 Buffer I/O error on device sda, logical block 8899662 scsi0: ERROR on channel 0, id 6, lun 0, CDB: Read (10) 00 00 87 cc 4f 00 00 31 00 Info fld=0x87cc4f, Current sda: sense key Medium Error ASC=13 ASCQ=c0 end_request: I/O error, dev sda, sector 8899663 Buffer I/O error on device sda, logical block 8899663 scsi0: ERROR on channel 0, id 6, lun 0, CDB: Read (10) 00 00 87 cc 50 00 00 30 00 Info fld=0x87cc50, Current sda: sense key Medium Error ASC=13 ASCQ=c0 end_request: I/O error, dev sda, sector 8899664 Buffer I/O error on device sda, logical block 8899664 scsi0: ERROR on channel 0, id 6, lun 0, CDB: Read (10) 00 00 87 cc 51 00 00 2f 00 Info fld=0x87cc51, Current sda: sense key Medium Error ASC=13 ASCQ=c0 end_request: I/O error, dev sda, sector 8899665 Buffer I/O error on device sda, logical block 8899665 scsi0: ERROR on channel 0, id 6, lun 0, CDB: Read (10) 00 00 87 cc 52 00 00 2e 00 Info fld=0x87cc52, Current sda: sense key Medium Error ASC=13 ASCQ=c0 end_request: I/O error, dev sda, sector 8899666 Buffer I/O error on device sda, logical block 8899666 scsi0: ERROR on channel 0, id 6, lun 0, CDB: Read (10) 00 00 87 cc 53 00 00 2d 00 Info fld=0x87cc53, Current sda: sense key Medium Error ASC=13 ASCQ=c0 end_request: I/O error, dev sda, sector 8899667 Buffer I/O error on device sda, logical block 8899667 scsi0: ERROR on channel 0, id 6, lun 0, CDB: Read (10) 00 00 87 cc 54 00 00 2c 00 Info fld=0x87cc54, Current sda: sense key Medium Error ASC=13 ASCQ=c0 end_request: I/O error, dev sda, sector 8899668 Buffer I/O error on device sda, logical block 8899668 scsi0: ERROR on channel 0, id 6, lun 0, CDB: Read (10) 00 00 87 cc 55 00 00 2b 00 Info fld=0x87cc55, Current sda: sense key Medium Error ASC=13 ASCQ=c0 end_request: I/O error, dev sda, sector 8899669 Buffer I/O error on device sda, logical block 8899669 scsi0: ERROR on channel 0, id 6, lun 0, CDB: Read (10) 00 00 87 cc 56 00 00 2a 00 Info fld=0x87cc56, Current sda: sense key Medium Error ASC=13 ASCQ=c0 end_request: I/O error, dev sda, sector 8899670 Buffer I/O error on device sda, logical block 8899670 scsi0: ERROR on channel 0, id 6, lun 0, CDB: Read (10) 00 00 87 cc 57 00 00 29 00 Info fld=0x87cc57, Current sda: sense key Medium Error ASC=13 ASCQ=c0 end_request: I/O error, dev sda, sector 8899671 Buffer I/O error on device sda, logical block 8899671 scsi0: ERROR on channel 0, id 6, lun 0, CDB: Read (10) 00 00 87 cc 58 00 00 28 00 Info fld=0x87cc58, Current sda: sense key Medium Error ASC=13 ASCQ=c0 end_request: I/O error, dev sda, sector 8899672 Buffer I/O error on device sda, logical block 8899672 scsi0: ERROR on channel 0, id 6, lun 0, CDB: Read (10) 00 00 87 cc 59 00 00 27 00 Info fld=0x87cc59, Current sda: sense key Medium Error ASC=13 ASCQ=c0 end_request: I/O error, dev sda, sector 8899673 Buffer I/O error on device sda, logical block 8899673 scsi0: ERROR on channel 0, id 6, lun 0, CDB: Read (10) 00 00 87 cc 5a 00 00 26 00 Info fld=0x87cc5a, Current sda: sense key Medium Error ASC=13 ASCQ=c0 end_request: I/O error, dev sda, sector 8899674 Buffer I/O error on device sda, logical block 8899674 scsi0: ERROR on channel 0, id 6, lun 0, CDB: Read (10) 00 00 87 cc 5b 00 00 25 00 Info fld=0x87cc5b, Current sda: sense key Medium Error ASC=13 ASCQ=c0 end_request: I/O error, dev sda, sector 8899675 Buffer I/O error on device sda, logical block 8899675 scsi0: ERROR on channel 0, id 6, lun 0, CDB: Read (10) 00 00 87 cc 5c 00 00 24 00 Info fld=0x87cc5c, Current sda: sense key Medium Error ASC=13 ASCQ=c0 end_request: I/O error, dev sda, sector 8899676 Buffer I/O error on device sda, logical block 8899676 scsi0: ERROR on channel 0, id 6, lun 0, CDB: Read (10) 00 00 87 cc 5d 00 00 23 00 Info fld=0x87cc5d, Current sda: sense key Medium Error ASC=13 ASCQ=c0 end_request: I/O error, dev sda, sector 8899677 Buffer I/O error on device sda, logical block 8899677 scsi0: ERROR on channel 0, id 6, lun 0, CDB: Read (10) 00 00 87 cc 5e 00 00 22 00 Info fld=0x87cc5e, Current sda: sense key Medium Error ASC=13 ASCQ=c0 end_request: I/O error, dev sda, sector 8899678 Buffer I/O error on device sda, logical block 8899678 scsi0: ERROR on channel 0, id 6, lun 0, CDB: Read (10) 00 00 87 cc 5f 00 00 21 00 Info fld=0x87cc5f, Current sda: sense key Medium Error ASC=13 ASCQ=c0 end_request: I/O error, dev sda, sector 8899679 Buffer I/O error on device sda, logical block 8899679 scsi0: ERROR on channel 0, id 6, lun 0, CDB: Read (10) 00 00 87 cc 60 00 00 20 00 Info fld=0x87cc60, Current sda: sense key Medium Error Additional sense: Unrecovered read error end_request: I/O error, dev sda, sector 8899680 Buffer I/O error on device sda, logical block 8899680 scsi0: ERROR on channel 0, id 6, lun 0, CDB: Read (10) 00 00 87 cc 61 00 00 1f 00 Info fld=0x87cc61, Current sda: sense key Medium Error ASC=13 ASCQ=c0 end_request: I/O error, dev sda, sector 8899681 Buffer I/O error on device sda, logical block 8899681 scsi0: ERROR on channel 0, id 6, lun 0, CDB: Read (10) 00 00 87 cc 62 00 00 1e 00 Info fld=0x87cc62, Current sda: sense key Medium Error ASC=13 ASCQ=c0 end_request: I/O error, dev sda, sector 8899682 Buffer I/O error on device sda, logical block 8899682 scsi0: ERROR on channel 0, id 6, lun 0, CDB: Read (10) 00 00 87 cc 63 00 00 1d 00 Info fld=0x87cc63, Current sda: sense key Medium Error ASC=13 ASCQ=c0 end_request: I/O error, dev sda, sector 8899683 Buffer I/O error on device sda, logical block 8899683 scsi0: ERROR on channel 0, id 6, lun 0, CDB: Read (10) 00 00 87 cc 64 00 00 1c 00 Info fld=0x87cc64, Current sda: sense key Medium Error ASC=13 ASCQ=c0 end_request: I/O error, dev sda, sector 8899684 Buffer I/O error on device sda, logical block 8899684 scsi0: ERROR on channel 0, id 6, lun 0, CDB: Read (10) 00 00 87 cc 65 00 00 1b 00 Info fld=0x87cc65, Current sda: sense key Medium Error ASC=13 ASCQ=c0 end_request: I/O error, dev sda, sector 8899685 Buffer I/O error on device sda, logical block 8899685 scsi0: ERROR on channel 0, id 6, lun 0, CDB: Read (10) 00 00 87 cc 66 00 00 1a 00 Info fld=0x87cc66, Current sda: sense key Medium Error ASC=13 ASCQ=c0 end_request: I/O error, dev sda, sector 8899686 Buffer I/O error on device sda, logical block 8899686 scsi0: ERROR on channel 0, id 6, lun 0, CDB: Read (10) 00 00 87 cc 67 00 00 19 00 Info fld=0x87cc67, Current sda: sense key Medium Error Additional sense: Unrecovered read error end_request: I/O error, dev sda, sector 8899687 Buffer I/O error on device sda, logical block 8899687 scsi0: ERROR on channel 0, id 6, lun 0, CDB: Read (10) 00 00 87 cc 68 00 00 18 00 Info fld=0x87cc68, Current sda: sense key Medium Error ASC=13 ASCQ=c0 end_request: I/O error, dev sda, sector 8899688 Buffer I/O error on device sda, logical block 8899688 scsi0: ERROR on channel 0, id 6, lun 0, CDB: Read (10) 00 00 87 cc 69 00 00 17 00 Info fld=0x87cc69, Current sda: sense key Medium Error ASC=13 ASCQ=c0 end_request: I/O error, dev sda, sector 8899689 Buffer I/O error on device sda, logical block 8899689 scsi0: ERROR on channel 0, id 6, lun 0, CDB: Read (10) 00 00 87 cc 6a 00 00 16 00 Info fld=0x87cc6a, Current sda: sense key Medium Error ASC=13 ASCQ=c0 end_request: I/O error, dev sda, sector 8899690 Buffer I/O error on device sda, logical block 8899690 scsi0: ERROR on channel 0, id 6, lun 0, CDB: Read (10) 00 00 87 cc 6b 00 00 15 00 Info fld=0x87cc6b, Current sda: sense key Medium Error ASC=13 ASCQ=c0 end_request: I/O error, dev sda, sector 8899691 Buffer I/O error on device sda, logical block 8899691 scsi0: ERROR on channel 0, id 6, lun 0, CDB: Read (10) 00 00 87 cc 6c 00 00 14 00 Info fld=0x87cc6c, Current sda: sense key Medium Error ASC=13 ASCQ=c0 end_request: I/O error, dev sda, sector 8899692 Buffer I/O error on device sda, logical block 8899692 scsi0: ERROR on channel 0, id 6, lun 0, CDB: Read (10) 00 00 87 cc 6d 00 00 13 00 Info fld=0x87cc6d, Current sda: sense key Medium Error ASC=13 ASCQ=c0 end_request: I/O error, dev sda, sector 8899693 Buffer I/O error on device sda, logical block 8899693 scsi0: ERROR on channel 0, id 6, lun 0, CDB: Read (10) 00 00 87 cc 6e 00 00 12 00 Info fld=0x87cc6e, Current sda: sense key Medium Error ASC=13 ASCQ=c0 end_request: I/O error, dev sda, sector 8899694 Buffer I/O error on device sda, logical block 8899694 scsi0: ERROR on channel 0, id 6, lun 0, CDB: Read (10) 00 00 87 cc 6f 00 00 11 00 Info fld=0x87cc6f, Current sda: sense key Medium Error ASC=13 ASCQ=c0 end_request: I/O error, dev sda, sector 8899695 Buffer I/O error on device sda, logical block 8899695 scsi0: ERROR on channel 0, id 6, lun 0, CDB: Read (10) 00 00 87 cc 70 00 00 10 00 Info fld=0x87cc70, Current sda: sense key Medium Error ASC=13 ASCQ=c0 end_request: I/O error, dev sda, sector 8899696 Buffer I/O error on device sda, logical block 8899696 scsi0: ERROR on channel 0, id 6, lun 0, CDB: Read (10) 00 00 87 cc 71 00 00 0f 00 Info fld=0x87cc71, Current sda: sense key Medium Error ASC=13 ASCQ=c0 end_request: I/O error, dev sda, sector 8899697 Buffer I/O error on device sda, logical block 8899697 scsi0: ERROR on channel 0, id 6, lun 0, CDB: Read (10) 00 00 87 cc 72 00 00 0e 00 Info fld=0x87cc72, Current sda: sense key Medium Error ASC=13 ASCQ=c0 end_request: I/O error, dev sda, sector 8899698 Buffer I/O error on device sda, logical block 8899698 scsi0: ERROR on channel 0, id 6, lun 0, CDB: Read (10) 00 00 87 cc 73 00 00 0d 00 Info fld=0x87cc73, Current sda: sense key Medium Error ASC=13 ASCQ=c0 end_request: I/O error, dev sda, sector 8899699 Buffer I/O error on device sda, logical block 8899699 scsi0: ERROR on channel 0, id 6, lun 0, CDB: Read (10) 00 00 87 cc 74 00 00 0c 00 Info fld=0x87cc74, Current sda: sense key Medium Error ASC=13 ASCQ=c0 end_request: I/O error, dev sda, sector 8899700 Buffer I/O error on device sda, logical block 8899700 scsi0: ERROR on channel 0, id 6, lun 0, CDB: Read (10) 00 00 87 cc 75 00 00 0b 00 Info fld=0x87cc75, Current sda: sense key Medium Error ASC=11 ASCQ=c0 end_request: I/O error, dev sda, sector 8899701 Buffer I/O error on device sda, logical block 8899701 scsi0: ERROR on channel 0, id 6, lun 0, CDB: Read (10) 00 00 87 cc 76 00 00 0a 00 Info fld=0x87cc76, Current sda: sense key Medium Error ASC=13 ASCQ=c0 end_request: I/O error, dev sda, sector 8899702 Buffer I/O error on device sda, logical block 8899702 scsi0: ERROR on channel 0, id 6, lun 0, CDB: Read (10) 00 00 87 cc 77 00 00 09 00 Info fld=0x87cc77, Current sda: sense key Medium Error ASC=13 ASCQ=c0 end_request: I/O error, dev sda, sector 8899703 Buffer I/O error on device sda, logical block 8899703 scsi0: ERROR on channel 0, id 6, lun 0, CDB: Read (10) 00 00 87 cc 78 00 00 08 00 Info fld=0x87cc78, Current sda: sense key Medium Error ASC=13 ASCQ=c0 end_request: I/O error, dev sda, sector 8899704 Buffer I/O error on device sda, logical block 8899704 scsi0: ERROR on channel 0, id 6, lun 0, CDB: Read (10) 00 00 87 cc 79 00 00 07 00 Info fld=0x87cc79, Current sda: sense key Medium Error ASC=13 ASCQ=c0 end_request: I/O error, dev sda, sector 8899705 Buffer I/O error on device sda, logical block 8899705 scsi0: ERROR on channel 0, id 6, lun 0, CDB: Read (10) 00 00 87 cc 7a 00 00 06 00 Info fld=0x87cc7a, Current sda: sense key Medium Error ASC=13 ASCQ=c0 end_request: I/O error, dev sda, sector 8899706 Buffer I/O error on device sda, logical block 8899706 scsi0: ERROR on channel 0, id 6, lun 0, CDB: Read (10) 00 00 87 cc 7b 00 00 05 00 Info fld=0x87cc7b, Current sda: sense key Medium Error ASC=13 ASCQ=c0 end_request: I/O error, dev sda, sector 8899707 Buffer I/O error on device sda, logical block 8899707 scsi0: ERROR on channel 0, id 6, lun 0, CDB: Read (10) 00 00 87 cc 7c 00 00 04 00 Info fld=0x87cc7c, Current sda: sense key Medium Error ASC=11 ASCQ=c0 end_request: I/O error, dev sda, sector 8899708 Buffer I/O error on device sda, logical block 8899708 scsi0: ERROR on channel 0, id 6, lun 0, CDB: Read (10) 00 00 87 cc 7d 00 00 03 00 Info fld=0x87cc7d, Current sda: sense key Medium Error ASC=13 ASCQ=c0 end_request: I/O error, dev sda, sector 8899709 Buffer I/O error on device sda, logical block 8899709 scsi0: ERROR on channel 0, id 6, lun 0, CDB: Read (10) 00 00 87 cc 7e 00 00 02 00 Info fld=0x87cc7e, Current sda: sense key Medium Error ASC=13 ASCQ=c0 end_request: I/O error, dev sda, sector 8899710 Buffer I/O error on device sda, logical block 8899710 scsi0: ERROR on channel 0, id 6, lun 0, CDB: Read (10) 00 00 87 cc 7f 00 00 01 00 Info fld=0x87cc7f, Current sda: sense key Medium Error ASC=13 ASCQ=c0 end_request: I/O error, dev sda, sector 8899711 Buffer I/O error on device sda, logical block 8899711 Current sda: sense key No Sense cdrom: open failed. ts: Compaq touchscreen protocol output ieee1394: Initialized config rom entry `ip1394' ohci1394: $Rev: 1223 $ Ben Collins <bcollins@debian.org> PCI: Enabling device 0000:00:0f.0 (0014 -> 0016) ohci1394: fw-host0: OHCI-1394 1.0 (PCI): IRQ=[25] MMIO=[81801000-818017ff] Max Packet=[2048] ieee1394: Host added: ID:BUS[0-00:1023] GUID[0000303c000911ef] usbcore: registered new driver usbfs usbcore: registered new driver hub ohci_hcd: 2004 Feb 02 USB 1.1 'Open' Host Controller (OHCI) Driver (PCI) ohci_hcd: block sizes: ed 64 td 64 USB Universal Host Controller Interface driver v2.2 phy registers: 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 NET: Registered protocol family 17 NET: Registered protocol family 10 Disabled Privacy Extensions on device c0236384(lo) IPv6 over IPv4 tunneling driver divert: not allocating divert_blk for non-ethernet device sit0

What i do is to use Knoppix /other Live CD and scan the unmounted disk!

Simple MEPIS makes it more simpler.

Although I am sure there might be another way to but I am not aware :D

I can't use a live CD because my computer is an oldworld one and won't boot out of a non Apple CD (OpenFirmware problem). Thanks anyway

This is a huge and common misconception. Yes, you can get old world macs to boot live CDs. I have the info somewhere on another computer. But if you're in a jam I know that there is dev at rocklinux irc that makes live CDs for the 608? processor that can tell you how. Just as on a pc, I believe you have to make a file onto a floppy to tell the mac to boot from the CD. There is another way too by including said file onto the live CD but devs just don't include this into live CDs. Anyway, maybe this has changed.

Just try this it solved all my problem.

Under etc director open fstab.

On whichever device u r getting these errors, just change those values at end(from 0 1 or 1 1) to 0 0.

This works , really. Just post a thanks, if it works for you guys.

use bonager, it worked for me get it at http://www.ubuntuforums.org/showthread.php?t=295262

chandakmayank said: Just try this it solved all my problem.

Under etc director open fstab.

On whichever device u r getting these errors, just change those values at end(from 0 1 or 1 1) to 0 0.

This works , really. Just post a thanks, if it works for you guys.

From my understanding of Fstab, what you just described doesn't really fix the problem. It just tells the operating system to ignore that drive whenever it runs fsck during bootup.

woops dupe post.

You can boot into single user mode to run fsck. In powerpc Linux, type this at the yaboot prompt:

Linux single

then fsck away...

to schedule a fsck on next boot, login as root and type:

touchfile fsckforce reload

(login as root using sudo passwd root, then su)

Do you mean

sudo touch /forcefsck

and then rebooting?