Sziasztok,
Van egy ubuntu notebook ami nem bootol, mert nem tudja felmountolni a /home filerendszert. Semmi gond, lattunk mar ilyet, nezzuk:
root@sysresccd /root % blkid
/dev/loop0: TYPE="squashfs"
/dev/sda1: UUID="38944e9e-cc2e-4303-bc19-bc2ad869479c" TYPE="swap"
/dev/sda3: UUID="4c109690-9b3b-44a7-ae1b-962c6e053f6a" TYPE="ext4"
/dev/sda5: UUID="3A7482347481F2C5" TYPE="ntfs"
Ok, nezzuk mi van az sda3 diszken:
root@sysresccd /root % mkdir /mnt/sda3; mount /dev/sda3 /mnt/sda3 -o ro
root@sysresccd /root % ls -l /mnt/sda3
total 104
drwxr-xr-x 2 root root 4096 2010-02-01 11:58 bin
drwxr-xr-x 3 root root 4096 2010-02-05 15:55 boot
lrwxrwxrwx 1 root root 11 2010-01-03 12:07 cdrom -> media/cdrom
drwxr-xr-x 4 root root 4096 2010-01-03 12:17 dev
drwxr-xr-x 141 root root 12288 2010-03-04 18:08 etc
drwxr-xr-x 2 root root 4096 2010-01-03 12:07 home
lrwxrwxrwx 1 root root 33 2010-02-05 15:55 initrd.img -> boot/initrd.img-2.6.31-19-generic
lrwxrwxrwx 1 root root 33 2010-01-08 09:40 initrd.img.old -> boot/initrd.img-2.6.31-17-generic
drwxr-xr-x 18 root root 12288 2010-02-01 11:58 lib
drwx------ 2 root root 16384 2010-01-03 12:07 lost+found
drwxr-xr-x 4 root root 4096 2010-03-02 15:34 media
drwxr-xr-x 2 root root 4096 2009-10-20 00:04 mnt
drwxr-xr-x 2 root root 4096 2009-10-28 20:55 opt
drwxr-xr-x 2 root root 4096 2009-10-20 00:04 proc
drwx------ 10 root root 4096 2010-02-25 07:41 root
drwxr-xr-x 2 root root 4096 2010-02-01 11:58 sbin
drwxr-xr-x 2 root root 4096 2009-10-19 23:05 selinux
drwxr-xr-x 2 root root 4096 2009-10-28 20:55 srv
drwxr-xr-x 2 root root 4096 2009-10-19 15:18 sys
drwxrwxrwt 2 root root 4096 2010-03-03 15:53 tmp
drwxr-xr-x 11 root root 4096 2010-01-03 12:30 usr
drwxr-xr-x 15 root root 4096 2009-10-28 21:02 var
lrwxrwxrwx 1 root root 30 2010-02-05 15:55 vmlinuz -> boot/vmlinuz-2.6.31-19-generic
lrwxrwxrwx 1 root root 30 2010-01-08 09:40 vmlinuz.old -> boot/vmlinuz-2.6.31-17-generic
Na, ezzel nincs baj, nezzuk az fstab-ot:
root@sysresccd /root % cat /mnt/sda3/etc/fstab
# /etc/fstab: static file system information.
#
# Use 'blkid -o value -s UUID' to print the universally unique identifier
# for a device; this may be used with UUID= as a more robust way to name
# devices that works even if disks are added and removed. See fstab(5).
#
# <file system> <mount point> <type> <options> <dump> <pass>
proc /proc proc defaults 0 0
# / was on /dev/sda3 during installation
UUID=4c109690-9b3b-44a7-ae1b-962c6e053f6a / ext4 errors=remount-ro 0 1
# /home was on /dev/sda6 during installation
UUID=b087c270-95a7-4239-9f8f-f3b5522fdfd9 /home ext4 defaults 0 2
# swap was on /dev/sda1 during installation
UUID=38944e9e-cc2e-4303-bc19-bc2ad869479c none swap sw 0 0
/dev/scd0 /media/cdrom0 udf,iso9660 user,noauto,exec,utf8 0 0
Ok, szoval mi tortent az sda6-al?
root@sysresccd /root % fdisk -l /dev/sda
Disk /dev/sda: 250.1 GB, 250059350016 bytes
255 heads, 63 sectors/track, 30401 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x003b003a
Device Boot Start End Blocks Id System
/dev/sda1 29794 30401 4883760 82 Linux swap / Solaris
/dev/sda2 3825 29793 208595992+ f W95 Ext'd (LBA)
/dev/sda3 * 1 3824 30716248+ 83 Linux
/dev/sda5 3825 16708 103490698+ 7 HPFS/NTFS
/dev/sda6 16709 29793 105105231 83 Linux
Partition table entries are not in disk order
Ok, particio megvan, akkor a filerendszerrel lesz para:
root@sysresccd /root % fsck.ext4 -f /dev/sda6
e2fsck 1.41.9 (22-Aug-2009)
Pass 1: Checking inodes, blocks, and sizes
Pass 2: Checking directory structure
Pass 3: Checking directory connectivity
Pass 4: Checking reference counts
Pass 5: Checking group summary information
/dev/sda6: 7064/6569984 files (6.7% non-contiguous), 2209059/26276307 blocks
Nem, filerendszer rendben van, akkor meggizdult az UUID, irjuk ujra:
root@sysresccd /root % tune2fs -U b087c270-95a7-4239-9f8f-f3b5522fdfd9 /dev/sda6
tune2fs 1.41.9 (22-Aug-2009)
root@sysresccd /root % blkid /dev/sda6
root@sysresccd /root %
Ok, mivan? Ujrairtuk az uuid-t es megsem?
root@sysresccd /root % tune2fs -l /dev/sda6
tune2fs 1.41.9 (22-Aug-2009)
Filesystem volume name: <none>
Last mounted on: /home
Filesystem UUID: b087c270-95a7-4239-9f8f-f3b5522fdfd9
Filesystem magic number: 0xEF53
Filesystem revision #: 1 (dynamic)
Filesystem features: has_journal ext_attr resize_inode dir_index filetype extent flex_bg sparse_super large_file huge_file uninit_bg dir_nlink extra_isize
Filesystem flags: signed_directory_hash
Default mount options: (none)
Filesystem state: clean
Errors behavior: Continue
Filesystem OS type: Linux
Inode count: 6569984
Block count: 26276307
Reserved block count: 1313815
Free blocks: 24067248
Free inodes: 6562920
First block: 0
Block size: 4096
Fragment size: 4096
Reserved GDT blocks: 1017
Blocks per group: 32768
Fragments per group: 32768
Inodes per group: 8192
Inode blocks per group: 512
Flex block group size: 16
Filesystem created: Sun Jan 3 12:07:05 2010
Last mount time: Tue Mar 2 12:10:29 2010
Last write time: Thu Mar 4 20:00:37 2010
Mount count: 0
Maximum mount count: 31
Last checked: Thu Mar 4 20:00:37 2010
Check interval: 15552000 (6 months)
Next check after: Tue Aug 31 20:00:37 2010
Lifetime writes: 25 GB
Reserved blocks uid: 0 (user root)
Reserved blocks gid: 0 (group root)
First inode: 11
Inode size: 256
Required extra isize: 28
Desired extra isize: 28
Journal inode: 8
Default directory hash: half_md4
Directory Hash Seed: d4df3854-b850-4ad0-a101-03ef56818b07
Journal backup: inode blocks
Na ezt magyarazza el nekem valaki miert van! Miert nem latja azt a filerendszert, ha ott van? (Biztonsag kedveert ujraindit, ubuntu nem boot, blkid tovabbra sem talal.)
Erre mondana valaki, a kovetkezo kifejezest: "Es ezt igy hogy?" :)
PS: Ne ertsetek felre, nem arra vagyok kivancsi hogyan javitsam meg az ubuntut, vagy hogyan oldjam meg a problemat. En arra vagyok kivancsi _miert_ van ez igy.
A notebook meg itt lesz holnap estig, tudok rajta probalgatni ha van meg valami tipp.