Ext4 died

[sdennie]

I hate to say it but... I told you so!

[binary10]

Some die - some don't. Keep an open mind...

I did an experiment on my laptops encrypted lvm'd ext4's USB system drive.. ok it was my old test system copy. I pulled the usb plug on it while logged in. wasn't really doing much.. conky was running monitoring cpu etc.. I tried a few directory lookups... I plugged it back in again.... took it out again and started to do a bit more writes etc.. thats when it went a bit odd. But I booted it back up..

I've stuck with ext4, my rsync backups handle will handle any major issues.

To quote some of the foo's - Its times like these you learn to live again.

[VMC]

I use a /data partition and not a /home partition so yes I keep my personal data separate from my OS.

Yes I have a swap partition.

I know I can re-install from back up, I am wondering if anyone has a fix.

If no solution is offered in the next day or so I shall re-install.

I am also going to revert to ext3 for the time being, at least for backups.

Are you doing those fsck from another livecd, like Parted Magic?

Also, I've had at one power failure, and at least 3 times that I just powerded off my computer without regards to Ext4 or anything. On next boot, Linux kernel complained about it then auto-ran fsck. One of those power cycles was because of SATA data cable corruption. But I have NEVER had it not boot up. I have to add, that I have a swap partition and one Ubuntu "/" partition. that's all.

[blueridgedog]

The final command you posted shows you tried to reformat the offending partition. Have you thought of deleting it and remaking it? Perhaps I have miss read the last command.

[bodhi.zazen]

The final command you posted shows you tried to reformat the offending partition. Have you thought of deleting it and remaking it? Perhaps I have miss read the last command.

That is what I would have thought, I needed to consult the man pages.

mke2fs -n /dev/sda1

-n causes mke2fs to not actually create a filesystem, but display
what it would do if it were to create a filesystem. This can be
used to determine the location of the backup superblocks for a
particular filesystem ...

[Steelmourne]

Using ext4 after system reinstall. No problems yet. Seems snappier than ext3 too.

[bodhi.zazen]

OK, just an update ....

I ran tinivole's command : Same results as "e2fsck -b 32768 /dev/sda1" (without the "B" flag).

Still no joy

As I was running the live CD anyways, I went for "Data recovery" -> Tried to install testdisk (photorec) -> apt-get hung -> machine (and keyboard) unresponsive -> had to hard reboot

I decided just for grins to boot the hard drive ->

lo an behold, despite errors on the live CD it boots

The system seems to be running normally again, not entirely sure what fixed it.

Thanks to the people who offered assistance. Hope this thread helps somebody else recover.

[fillintheblanks]

once you go EXT4, you never go back

[VMC]

...
I decided just for grins to boot the hard drive ->

lo an behold, despite errors on the live CD it boots

The system seems to be running normally again, not entirely sure what fixed it.

Thanks to the people who offered assistance. Hope this thread helps somebody else recover.

That is the troubling part. To fix something and not know what it was that fixed it. Apparently though, one of the commands entered did the trick.

[bodhi.zazen]

I hate to say it but... I told you so!

Pffttt