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slugggerzzz
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Joined: 07 Mar 2012
Posts: 57
Location: Manchester, UK

PostPosted: Wed Oct 10, 2012 2:13 pm    Post subject: Kernel Boot error Reply with quote

I have configured my kernel for a new server.

when i boot up i get...

Code:

EXT3-fs (sda3): error: couldn't mount because of unsupported optional features (240)
EXT2-fs (sda3): error: couldn't mount because of unsupported optional features (240)
EXT4-fs (sda3): error: mounted filesystem with ordered data mode. Opts: (null)

VFS: Mounted root (ext4 filesystem) readonly on device 8:3.


Then some stuff about kernel memory..

What could be the problem ?

I have had the problem with my rootfs mounting as RO but not this.

my fstab is:

Code:


/dev/sda1   /boot        ext2    defaults,noatime     0 2
/dev/sda2   none         swap    sw                   0 0
/dev/sda3   /            ext4    noatime              0 1

/dev/cdrom  /mnt/cdrom   auto    noauto,user          0 0
[/quote]


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DONAHUE
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PostPosted: Wed Oct 10, 2012 11:54 pm    Post subject: Reply with quote

not really a problem. just says ext2, ext3 can't mount an ext4 file system
leave alone
or
add rootfstype=ext4 to grub's kernel line
and/or
menuconfig:
Quote:
< > Second extended fs support
< > Ext3 journalling file system support
<*> The Extended 4 (ext4) filesystem
[*] Use ext4 for ext2/ext3 file systems (NEW)
[*] Ext4 extended attributes (NEW)
[ ] Ext4 POSIX Access Control Lists (NEW)
[ ] Ext4 Security Labels (NEW)
[ ] EXT4 debugging support (NEW)

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slugggerzzz
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PostPosted: Thu Oct 11, 2012 8:53 am    Post subject: Reply with quote

Sorry I should have been more clear.

This happens and then the system fails to boot.

Any suggestions on why this would happen ?
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DONAHUE
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PostPosted: Thu Oct 11, 2012 1:37 pm    Post subject: Reply with quote

add rootfstype=ext4 to grub's kernel line
and
change menuconfig to:
Quote:
< > Second extended fs support
< > Ext3 journalling file system support
<*> The Extended 4 (ext4) filesystem
[*] Use ext4 for ext2/ext3 file systems (NEW)
[*] Ext4 extended attributes (NEW)
[ ] Ext4 POSIX Access Control Lists (NEW)
[ ] Ext4 Security Labels (NEW)
[ ] EXT4 debugging support (NEW)
recompile the kernel
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Thistled
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PostPosted: Thu Oct 11, 2012 5:38 pm    Post subject: Reply with quote

Hello Sluggerzzz

Get a live DVD and chroot into your environment.
Rebuild the kernel with the options DONAHUE points out.
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