[SOLVED]: unable to mount sdb2

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francois
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[SOLVED]: unable to mount sdb2

Post#1 by francois » 07 Feb 2016, 01:20

EXT4-fs (sdb2): ext4_check_descriptors: Checksum for group 64 failed (51701!=52326)
[12234.652707] EXT4-fs (sdb2): group descriptors corrupted!

Code: Select all

root@porteus:~# dmesg | tail
[   13.869497] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
[ 5033.704255] usb 4-1: USB disconnect, device number 2
[12119.974070] usb 4-1: new full-speed USB device number 3 using uhci_hcd
[12120.167243] logitech-djreceiver 0003:046D:C52B.0008: hiddev0,hidraw0: USB HID v1.11 Device [Logitech USB Receiver] on usb-0000:00:1a.1-1/input2
[12120.221465] input: Logitech Unifying Device. Wireless PID:1024 as /devices/pci0000:00/0000:00:1a.1/usb4/4-1/4-1:1.2/0003:046D:C52B.0008/0003:046D:C52B.0009/input/input11
[12120.222273] logitech-djdevice 0003:046D:C52B.0009: input,hidraw1: USB HID v1.11 Mouse [Logitech Unifying Device. Wireless PID:1024] on usb-0000:00:1a.1-1:1
[12120.223724] input: Logitech Unifying Device. Wireless PID:2011 as /devices/pci0000:00/0000:00:1a.1/usb4/4-1/4-1:1.2/0003:046D:C52B.0008/0003:046D:C52B.000A/input/input12
[12120.223899] logitech-djdevice 0003:046D:C52B.000A: input,hidraw2: USB HID v1.11 Keyboard [Logitech Unifying Device. Wireless PID:2011] on usb-0000:00:1a.1-1:2
[12234.652702] EXT4-fs (sdb2): ext4_check_descriptors: Checksum for group 64 failed (51701!=52326)
[12234.652707] EXT4-fs (sdb2): group descriptors corrupted!
root@porteus:~#


How do I correct that?

Thanks.
Voltaire: Le mieux est l'ennemi du bien.

Bogomips
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Re: unable to mount sdb2

Post#2 by Bogomips » 07 Feb 2016, 01:57

Tried fsck already, francois?
Linux porteus 4.4.0-porteus #3 SMP PREEMPT Sat Jan 23 07:01:55 UTC 2016 i686 AMD Sempron(tm) 140 Processor AuthenticAMD GNU/Linux
NVIDIA Corporation C61 [GeForce 6150SE nForce 430] (rev a2) MemTotal: 901760 kB MemFree: 66752 kB

aus9

Re: unable to mount sdb2

Post#3 by aus9 » 07 Feb 2016, 02:49

thanks Bogomips

I am more anal

any partition to be checked from a normal bootup should be umounted and then as root run....assuming ext2/3/4

Code: Select all

e2fsck -f /dev/sdb2
If sdb2 is your normal boot up partition then I suggest you boot a live cd or a bootable linux usb stick and umount sdb2

2) if you want a regular system check you can mod your /etc/fstab to include a checkup.

https://wiki.archlinux.org/index.php/fsck#fstab_options

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Re: unable to mount sdb2

Post#4 by Bogomips » 07 Feb 2016, 12:27

aus9 wrote:
2) if you want a regular system check you can mod your /etc/fstab to include a checkup.
Bit less hassle? fsck on Kernel Command Line -> performing linux filesystem check on all available devices: at boot time.
Linux porteus 4.4.0-porteus #3 SMP PREEMPT Sat Jan 23 07:01:55 UTC 2016 i686 AMD Sempron(tm) 140 Processor AuthenticAMD GNU/Linux
NVIDIA Corporation C61 [GeForce 6150SE nForce 430] (rev a2) MemTotal: 901760 kB MemFree: 66752 kB

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Re: unable to mount sdb2

Post#5 by francois » 07 Feb 2016, 14:05

I used fsck as a cheatcode a few times since then to check the file system with no differences on the fact that sdb2 could be mounted. I will try aus9 proposition.

Thanks.
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francois
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Re: unable to mount sdb2

Post#6 by francois » 07 Feb 2016, 18:18

Code: Select all

e2fsck -f /dev/sdb2
did it.

Thanks.
Voltaire: Le mieux est l'ennemi du bien.

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