On Sat, May 3, 2008 at 5:21 PM, Yahong Chen <tsyjcyh@gmail.com> wrote:
Hi,
A lap-top with two OSes: WindowsXP and Debian/Linux R4.0 Ecth. Under
Debian, I removed all the sub directories and files of /boot by
mistake, and want to rescue the system. The hard disk partitions of
the interest system on is
##BEGIN
Disk /dev/hda: 60.0 GB, 60011642880 bytes
255 heads, 63 sectors/track, 7296 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
* Device Boot * * *Start * * * * End * * *Blocks * Id *System
/dev/hda1 * * * * * * * 1 * * * *1084 * * 8707198+ * 7 *HPFS/NTFS
/dev/hda2 * * * * * *1085 * * * *2016 * * 7486290 * 83 *Linux
/dev/hda3 * * * * * *2017 * * * *2028 * * * 96390 * 83 *Linux
/dev/hda4 * * * * * *2029 * * * *7296 * *42315210 * *5 *Extended
/dev/hda5 * * * * * *2029 * * * *2150 * * *979933+ *8e *Linux LVM
/dev/hda6 * * * * * *2151 * * * *2393 * * 1951866 * 83 *Linux
/dev/hda7 * * * * * *2394 * * * *3366 * * 7815591 * 83 *Linux
/dev/hda8 * * * * * *3367 * * * *3731 * * 2931831 * 8e *Linux LVM
/dev/hda9 * * * * * *3732 * * * *5555 * *14651248+ *8e *Linux LVM
/dev/hda10 * * * * * 5556 * * * *5682 * * 1020096 * 8e *Linux LVM
/dev/hda11 * * * * * 5683 * * * *5810 * * 1028128+ *8e *Linux LVM
/dev/hda12 * * * * * 5811 * * * *5937 * * 1020096 * 8e *Linux LVM
/dev/hda13 * * * * * 5938 * * * *7296 * *10916136 * *b *W95 FAT32
##END
and /etc/fstab:
##BEGIN
# /etc/fstab: static file system information.
#
# <file system> <mount point> * <type> *<options> * * * <dump> *<pass>
proc * * * * * */proc * * * * * proc * *defaults * * * *0 * * * 0
/dev/mapper/hda6_crypt / * * * * * * * reiserfs notail * * * * *0 * * * 1
/dev/hda3 * * * /boot * * * * * reiserfs notail * * * * *0 * * * 2
/dev/mapper/hda7_crypt /usr * * * * * *reiserfs defaults * * * *0 * * * 2
/dev/mapper/home_crypt /home * *ext3 * *defaults * * * *0 * * * 0
/dev/mapper/swap_crypt *none * *swap * *sw * * *0 * * * 0
/dev/hdc * * * */media/cdrom0 * udf,iso9660 user,noauto * * 0 * * * 0
/dev/hda2 * * * * /mnt/multimedia * * * reiserfs * * * *defaults * * * *0 * * * 2
/dev/vgresource/lvresource * * */mnt/resource * ext3 * *defaults * * * *0 * * * 2
#/dev/hda1 * * */mnt/hda1 * * * ntfs * *defaults * * * *0 * * * 0
/dev/hda13 * * */mnt/hda13 * * *vfat * *iocharset=utf8,rw,auto,user,umask=0 * * 0 * * * 0
##END
and /etc/crypttab:
##BEGIN
hda6_crypt /dev/hda6 none luks
swap_crypt /dev/vgswap/lvswap /dev/random swap
hda7_crypt /dev/hda7 none luks
home_crypt /dev/vghome/lvhome none luks
##END
where the PVs of vghome are hda8, hda10, hda11 and hda12. The PV(s) of
vgresource are hda9.
I tried to make a new installation of basic Debian/Linux system on
another hard disk and attached the hard disk which the broken system
on as a mobile hard disk (use USB line). The *sub-directories and
files of /boot of the new system were copied to the corresponding
place of old one and reinstalled GRUB on the hard disk and modified
device.map and menu.1st. After doing so, boot from the hard disk, the
last screen display gives:
##BEGIN
Begin: Mounting root file system ... ...
Begin: Running /scripts/local-top ... ...
device-mapper: ioctl: 4.7.0 - ioctl (2006-06-24) initialised:
dm-devel@redhat.com
Done
Begin: Waiting for root filesystem ... ...
Done
* * * *Check root= bootarg cat /proc/cmdline
* * * *or missing modules, devices: cat /proc/modules ls /dev
ALERT! /dev/mapper/hda6_crypt does not exist. Dropping to a shell
BusyBox v1.1.3 (Debian 1:1.1.3-4) Built-in shell (ash)
Enter 'help' for a list of built-in commands
/bin/sh: can't access tty; job control turned off
(initramfs) _
##END
What should I do next? Thanks in advance!
PS:
1. Though I could access most files even those on the crypted
partitions of the broken system and now I have another new system, I
really want to rescue and use the old one.
2. After I mistakenly 'rm -r /boot' on the old system, I've tried
several rescue ways:
* * * *1). undelete: remount /dev/hda3 readonly,
* * * * * *# debugfs /dev/hda3
* * * * * * * *debugfs 1.40-WIP (14-Nov-2006)
* * * * * * * */dev/hda3: Bad magic number in super-block while opening filesystem
* * * * * * * *debugfs: *lsdel
* * * * * * * *lsdel: Filesystem not open
* * * * * * * *debugfs: *open /dev/hda3
* * * * * * * */dev/hda3: Bad magic number in super-block while opening filesystem
* * * * * * * *debugfs:
* * * *Then I gave up. And try
* * * *2). reinstall kernel using "synaptic", the machine halted at the last
minute because overheat (almost complete the kernel reinstallation.
:-( old computer, about 5 years, CPU is AMD Athlon 1800+ Mobile).
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there might be a way to fix it. but it is not going to be easy. the best way to do is
to make a new install. as long as the data is there. it should be ok for me =)
remove /boot by mistake, /,/usr and /home on partitions with LVM and crypt
