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Full Discussion: Deleted /etc/passwd
Top Forums UNIX for Dummies Questions & Answers Deleted /etc/passwd Post 25937 by cerberusofhate on Wednesday 7th of August 2002 11:53:21 PM
Old 08-08-2002
yeah, boot from a boot cdrom and go into recovery mode (assuming that you use your distro's cdrom for this). Then, mount your old drive:
mkdir /olddrive
mount /dev/hda5 /olddrive
assuming that your old drive is on /dev/hda5.
then, cd to /olddrive/etc
type:
echo "root::0:0:Superuser:/:/bin/bash" > passwd
then reboot. That will set no passwd for root. Then, you can login, create all of your accounts over again, etc. BTW, some distros might have made a backup for you called passwd.old or something similar, check it out Smilie
cerberusofhate
 

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HD(4)							     Linux Programmer's Manual							     HD(4)

NAME
hd - MFM/IDE hard disk devices DESCRIPTION
The hd* devices are block devices to access MFM/IDE hard disk drives in raw mode. The master drive on the primary IDE controller (major device number 3) is hda; the slave drive is hdb. The master drive of the second controller (major device number 22) is hdc and the slave hdd. General IDE block device names have the form hdX, or hdXP, where X is a letter denoting the physical drive, and P is a number denoting the partition on that physical drive. The first form, hdX, is used to address the whole drive. Partition numbers are assigned in the order the partitions are discovered, and only non-empty, non-extended partitions get a number. However, partition numbers 1-4 are given to the four partitions described in the MBR (the `primary' partitions), regardless of whether they are unused or extended. Thus, the first logi- cal partition will be hdX5. Both DOS-type partitioning and BSD-disklabel partitioning are supported. You can have at most 63 partitions on an IDE disk. For example, /dev/hda refers to all of the first IDE drive in the system; and /dev/hdb3 refers to the third DOS `primary' partition on the second one. They are typically created by: mknod -m 660 /dev/hda b 3 0 mknod -m 660 /dev/hda1 b 3 1 mknod -m 660 /dev/hda2 b 3 2 ... mknod -m 660 /dev/hda8 b 3 8 mknod -m 660 /dev/hdb b 3 64 mknod -m 660 /dev/hdb1 b 3 65 mknod -m 660 /dev/hdb2 b 3 66 ... mknod -m 660 /dev/hdb8 b 3 72 chown root:disk /dev/hd* FILES
/dev/hd* SEE ALSO
mknod(1), chown(1), mount(8), sd(4) Linux 1992-12-17 HD(4)
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