I was installing slackware and were at the part where I was supposed to write my root passwd, but I couldn't because I had a bus error. So I decided to continue without a root passwd. Right after that I got a message that I didn't have enough space, and that I should restart. I checked fdisk and found out that my swap disk was full. I restarted and
chose to start Linux with boot and continued got this message:

WARNING: Couldn't open /etc/fstab: no such file or directory
/sbin/e2fsck is a directory while trying to open /
/:

The superblock could not be read or does not describe a correctext2 filesystem. If the device is valid and it really contains an ext2 filesystem (and not swap or ufs or something else ), then the superblock is corrupt and you might tru running e2fsck with an alternate superblock:
e2fsk -b 8193 <device>


*******************************************************
*** An error occurred during the root filesystem check. ***
*** You will now be given a chance to fix the problem. ***
*** ***
*** If you are using ext2 filesystem, running ***
***'e2fsck -v -y <partition> might help. ***
*******************************************************

once you exit the single-user shell, the system will reboot


I then had to write my root passwd or be rebooted. Since I don't have a root passwd I'm being rebooted each time.

I'm thinking to try to reinstall slackware, but I don't know how to get to fdisk to delete what I have there. I tried to place my install cd in, but that leads me directly to LILO and I haven't found any programs which allows me to delete the partitions without using OS.

I have a mobile computer with Intel Pentium M, Kingston ValueR DDR SO-DIMM.

the install cd should lead you to the prompt to setup, not lilo. you should be able to run cfdisk from there. if it won't boot and your bios is set to boot from cd, try a slax or knoppix cd. i prefer slax b/c it doesn't force you into a gui.

Try booting the install disk. Use cfdisk to recreate all your partitions, specifying the correct filesystem type for each. Re-install.

I am guessing you pointed setup to your swap. It installed what it could (to the wrong partition), until it ran out of space. Unless you had somewhere around 4G of swap , this would cause a whole mess of errors.