**WARNING** Do not run the dd command in comment #200 **WARNING** The command should read "dd if=<iso name> of=/mountpoint/for/ext4/partition/filename bs=512MB count=1"
Pointing of= to anything in /dev is wrong, and you should always be very careful when using dd. Though unlikely, trying to follow the instructions in comment #200 as currently written could lead you to accidentally overwrite the beginning of your ext4 partition with the contents of the iso, making all of the files on that partition difficult to recover, and overwriting many of them permanently. -- in-place corruption of large files *without fsck or reboot* reported with linux 2.6.31-14.46 on ext4 https://bugs.launchpad.net/bugs/453579 You received this bug notification because you are a member of Mythbuntu Bug Team, which is a direct subscriber. Status in The Linux Kernel: New Status in Ubuntu Release Notes: Fix Released Status in “linux” package in Ubuntu: Triaged Status in “linux” source package in Karmic: Triaged Bug description: There are worrying reports of filesystem corruption on ext4 in karmic. Scott says: 12:36 < Keybuk> this whole ext4 thing is worrying me 12:36 < Keybuk> I just downloaded an iso image, md5sum didn't match 12:36 < Keybuk> downloaded it into an ext3 partition, matched just fine 12:59 < Keybuk> and I know mvo has seen bugs with corrupted .debs in /var/cache/apt/archives 12:59 < Keybuk> which seems to imply its any file large enough to use lots of extents I'm opening this bug report so that this bug gets tracked & triaged for karmic. If we're unable to isolate the issue, we should consider rolling back to ext3 as the default filesystem in the installer. ProblemType: Bug Architecture: amd64 ArecordDevices: **** List of CAPTURE Hardware Devices **** card 0: Intel [HDA Intel], device 0: AD198x Analog [AD198x Analog] Subdevices: 1/1 Subdevice #0: subdevice #0 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: vorlon 3350 F.... pulseaudio Card0.Amixer.info: Card hw:0 'Intel'/'HDA Intel at 0xee240000 irq 17' Mixer name : 'Analog Devices AD1981' Components : 'HDA:11d41981,17aa2025,00100200' Controls : 20 Simple ctrls : 11 Date: Fri Oct 16 16:01:26 2009 DistroRelease: Ubuntu 9.10 HibernationDevice: RESUME=UUID=f108133c-6b9d-4d28-9058-0b3a0c5549b4 MachineType: LENOVO 6371CTO Package: linux-image-2.6.31-14-generic 2.6.31-14.46 PccardctlIdent: Socket 0: no product info available PccardctlStatus: Socket 0: no card ProcCmdLine: root=/dev/mapper/hostname-root ro ProcEnviron: PATH=(custom, user) LANG=en_US.UTF-8 SHELL=/bin/bash ProcVersionSignature: Ubuntu 2.6.31-13.44-generic RelatedPackageVersions: linux-firmware 1.22 SourcePackage: linux Uname: Linux 2.6.31-13-generic x86_64 WpaSupplicantLog: dmi.bios.date: 12/27/2006 dmi.bios.vendor: LENOVO dmi.bios.version: 7IET23WW (1.04 ) dmi.board.name: 6371CTO dmi.board.vendor: LENOVO dmi.board.version: Not Available dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvr7IET23WW(1.04):bd12/27/2006:svnLENOVO:pn6371CTO:pvrThinkPadT60:rvnLENOVO:rn6371CTO:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 6371CTO dmi.product.version: ThinkPad T60 dmi.sys.vendor: LENOVO ls _______________________________________________ Mailing list: https://launchpad.net/~mythbuntu-bugs Post to : mythbuntu-bugs@lists.launchpad.net Unsubscribe : https://launchpad.net/~mythbuntu-bugs More help : https://help.launchpad.net/ListHelp
