Recovery Data on Win95 Ext'd (LBA)

[meeinter]

we use RHEL cannot boot to system
we check partition have /dev/hda4 not linux ext3 partition

/dev/hda3 255 257 24097+ 83 Linux
/dev/hda4 258 1467 9719325 f Win95 Ext'd (LBA)
/dev/hda5 258 1026 6176961 83 Linux
/dev/hda6 1027 1067 329301 82 Linux swap


help me please we need data on hda4 please provide software recovery or how to fix this ploblem

thank you
john

[devils casper]

/dev/hda4 is an Extended Partition and it is not possible to save/restore data from this partition. Its just a container which hold /dev/hda5 and 6 Logical Partitions.

When did you install RHEL? What is in /dev/sda1 and /dev/sda2?

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This is example not real system but have Win95 Ext'd (LBA) on files system we must mount partition? now install new linux on another harddisk and plug to system boot on new harddisk ready but cannot mount partition on old harddisk but fdisk -l have Win95 Ext'd (LBA) on old scsii help me please
we need mount and copy data we can? this Win95 Ext'd (LBA) not bad partition?

/dev/hda3 255 257 24097+ 83 Linux
/dev/hda4 258 1467 9719325 f Win95 Ext'd (LBA)
/dev/hda5 258 1026 6176961 83 Linux
/dev/hda6 1027 1067 329301 82 Linux swap

thank you

[devils casper]

Its not a bad partition. Its is an Extended Partition. Its not possible to mount Extended Partition because its like a virtual partition. As I mentioned earlier, its a container only. If you check starting and ending cylinders of any Extended Partition, you will find that other Logical Partitions ( Starting from /dev/sda5 ) exist between those limits.

/dev/hda4 258 1467 9719325 f Win95 Ext'd (LBA)
/dev/hda5 258 1026 6176961 83 Linux
/dev/hda6 1027 1067 329301 82 Linux swap

Extended Partition : /dev/sda4 258 to 1467
Logical Partition : /dev/sda5 258 to 1026
Logical Partition : /dev/sda6 1027 to 1067
Un-partitioned/free space : 1068 to 1467

There is a free space inside /dev/sda4 and you can create new partition(s) inside it using that free space.

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Extended Partition : /dev/sda4 258 to 1467
Logical Partition : /dev/sda5 258 to 1026
Logical Partition : /dev/sda6 1027 to 1067
Un-partitioned/free space : 1068 to 1467

Dear devils casper

my /home partition cannot mount if we need access /home we must mount partition? all my data in /home


/ avaliable
/boot avaliable
/var avaliable
/home partition not avaliable (not active)

please

thank you

[devils casper]

Did you change partition structure of your hard disk? Your /home partition must be other than Extended Partition.

Boot up from LiveCD of any Linux distro and mount / partition. Post the contents of /etc/fstab file and output of fdisk -l command here.

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Thank You

monday 22 March 53

we update another information

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Old Systemfiles


[root@ddddddd root]# fdisk -l

Disk /dev/sda: 72.8 GB, 72802631680 bytes
254 heads, 63 sectors/track, 8885 cylinders
Units = cylinders of 16002 * 512 = 8193024 bytes

Device Boot Start End Blocks Id System
/dev/sda1 * 1 13 103981+ 83 Linux
/dev/sda2 8758 8885 1024128 82 Linux swap
/dev/sda3 14 6581 52550568 83 Linux
/dev/sda4 6582 8757 17410176 f Win95 Ext'd (LBA)
/dev/sda5 6582 7605 8192992+ 83 Linux
/dev/sda6 7606 8181 4608544+ 83 Linux
/dev/sda7 8182 8629 3584416+ 83 Linux
/dev/sda8 8630 8757 1024096+ 83 Linux

Partition table entries are not in disk order


New install Linux Harddisk IDE

Disk /dev/hda: 40.0 GB, 40020664320 bytes
255 heads, 63 sectors/track, 4865 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes


Device Boot Start End Blocks Id System
/dev/hda1 * 1 13 104391 83 Linux
/dev/hda2 14 4611 36933435 83 Linux
/dev/hda3 4612 4865 2040255 82 Linux swap
[root@ddddddd root]#

[gnuuser]

devils casper is correct
this is an extended partition and cannot be accessed by a user or admin, this is a virtual partition much like a swap partition and is only accessed by the os!
file recovery from an extended partition in nearly impossible unless you are very skilled at digital forensics.
It is risky at best because trying to read the partition without a hardware write blocker can corrupt or delete the data.

Always back up the data and files prior to installing any new os

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Always back up the data and files prior to installing any new os

we need how to backup data help me please

we plug to another server cannot mount /home partition all data in /home


thank you
voraphong