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Thread: CentOS boot error
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08-27-2013 #1
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- Aug 2013
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CentOS boot error
I installed older kernel ( 2.6.28 ) from sources under CentOS 6.4 (2.6.32). During boot process of kernel 2.6.28 I get an error (please take a look at the attachment).
fstab
Code:# cat /etc/fstab # # /etc/fstab # Created by anaconda on Mon Aug 26 20:16:14 2013 # # Accessible filesystems, by reference, are maintained under '/dev/disk' # See man pages fstab(5), findfs(8), mount(8) and/or blkid(8) for more info # /dev/mapper/VolGroup-lv_root / ext4 defaults 1 1 UUID=28926ada-c072-4f7d-b433-92d900482b0a /boot ext4 defaults 1 2 /dev/mapper/VolGroup-lv_swap swap swap defaults 0 0 tmpfs /dev/shm tmpfs defaults 0 0 devpts /dev/pts devpts gid=5,mode=620 0 0 sysfs /sys sysfs defaults 0 0 proc /proc proc defaults 0 0
Code:# fdisk -l Disk /dev/sda: 21.5 GB, 21474836480 bytes 255 heads, 63 sectors/track, 2610 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x000a80d0 Device Boot Start End Blocks Id System /dev/sda1 * 1 64 512000 83 Linux Partition 1 does not end on cylinder boundary. /dev/sda2 64 2611 20458496 8e Linux LVM Disk /dev/dm-0: 19.9 GB, 19872612352 bytes 255 heads, 63 sectors/track, 2416 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x00000000 Disk /dev/dm-1: 1073 MB, 1073741824 bytes 255 heads, 63 sectors/track, 130 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x00000000
thank you
regards,
Alex
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08-29-2013 #2
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- Apr 2009
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Did you also downgrade all of your system libraries and applications? All RHEL systems from 6.0 on are using the 2.6.32 kernel tree. Trying to install one like 2.6.28 will likely have some serious incompatibilities. What happens when you select the newer kernels from the grub menu?
Sometimes, real fast is almost as good as real time.
Just remember, Semper Gumbi - always be flexible!
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08-31-2013 #3
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- Aug 2013
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No, i did not downgrade and libs or apps.
If i choose 2.6.32 kernel, there are no problems with boot process.
If I boot 2.6.28 with "fastboot" option, there are no problems during the boot process. But I would like to have fs check.
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08-31-2013 #4
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You have ext4 file systems. I'm not sure that the older kernel supports it. Have you tried to downgrade the file systems to ext3? They are both based upon ext2, but have journaling (reliability) enhancements. There are differences in the details and performance (under some situations). The file system structure is the same, which is why the /sbin/e2fsck tool works on all of ext2/3/4 file systems.
Sometimes, real fast is almost as good as real time.
Just remember, Semper Gumbi - always be flexible!