Moving /opt to new disk

Recently I was playing with a Kali VM and I installed so much stuff to it that I used up the disk! Literally, I was at 100% used! Yikes!

I started to try to delete unnecessary files, trash, cached apt packages, etc, but quickly came to the conclusion that I wanted everything that I had on the Kali VM, and my disk was still 96% full. So I needed a way to offload files that I still wanted.

I looked through my VM, which had a single 20GB hard drive, and saw that /usr had 10GB by itself, and /opt had 4GB. So I decided to create a new virtual hard drive, move over my /opt files, and change /opt's location in /etc/fstab to point to the new directory. This solved my problem, as my drive that USED to say 96% full, now says 73% full, just by moving /opt.

Here's how I moved it:

I added a new virtual hard drive in VirtualBox that was 12GB.

I booted up the VM, went into fdisk, and noted (by doing 'ls /dev/sd*') that my new drive was called sdb. I used fdisk to create a new primary partition and write the changes.

I then made a file system on that newly created partition with:

#mkfs -t ext3 /dev/sdb1

Then I went into single user mode to ensure that I could copy over all the /opt files

#init 1

After I booted into single user mode, I did this:

#mkdir /mnt/Disk2opt

#mount /dev/sdb1 /mnt/Disk2opt

#cp -avx /opt/* /mnt/Disk2opt/

#mv /opt /opt_old

#ln -s /mnt/Disk2opt /opt

I then added this line to the /etc/fstab

'/dev/sdb1 /opt ext3 defaults 1 2'

That was it! After I rebooted and saw that everything was working fine, I deleted the /opt_old directory, and freed up all that space. That made my 96% used drive go down to 73% used! Awesome!

Comments

2025 Tap And Map

Tap And Map is back with new and improved installation instructions! Here is an old video showing what TapAndMap is, for those who may not know: https://www.youtube.com/watch?v=gRfQzBjrhEE you'll notice that it's been a while since I've touched Tap And Map. Because it's been so long since I built this, the old installation instructions would NEVER work to build it today (Feb 2025). Plus, there was a Google Maps API bug that has troubled me all this time, as Google Maps would decide not to reload the page and I'd have to clear my history (lame). Because my old code was built as an all-in-one method, so packets were sniffed, looked up, displayed, and logged, all in one large monolithic module, there was no easy means to troubleshoot. So I've now decided to Sniff packets, lookup their IP information, and store the data in one script, and read that file, parse and publish html files in a separate module. That allowed me to b...

HP c6180 Printer and Vista

Hp c6180 driver issues with Vista Home Premium My wife has a Vista Home Premium laptop, and the HP C6180 Photosmart printer keeps disappearing from her available printers. The only way I've found to fix the problem is to reinstall all the HP software. When I do this, I have to download the (large..507M software from HP, or reinstall the printer (ONLY the printer, not the scanner) with the installation disk, as the drivers are not discovered with a "Windows Update" setting. My guess is that is because HP doesn't like people to install only the printer driver, which would be easy, but they want folks to install all their crapware as well, so they are withholding the drivers from the on-line Microsoft printer database. So keep your installation CD! I've also found that unless I install everything on the CD or in the Full Version download (HP Customer Participation Program, HP Imaging Device functions, HP OCR SW, HP All-In-one SW, HP Photosm...

atftpd vs tftpd-hpa

Recently I was trying to tftp files from a Windows computer to a Kali box. One version of Windows worked, but another didn't. After much troubleshooting, here were my symptoms: I could tftp a file from-to any Kali box from-to another Kali box I could NOT tftp files to a specific Windows 7 box from any Kali box I could NOT tftp files to a Chrooted-Ubuntu-Chromebook box from a Kali box After MUCH troubleshooting, going through every setting in atftpd, it seemed like it literally was a client OS problem. Different clients simply would not download files---unacceptable. Thus, I switched to tftpd-hpa. To install: apt-get install tftpd-hpa files go to/come from /srv/tftp, but it needs to be a tftp user. Thus, I needed to: chroot -R /srv/tftp Also, if you want to be able to put files ON the tftp server (from a client), you need to modify /etc/default/tftpd-hpa: change "TFTP_OPTIONS="--secure" to "TFTP_OPTIONS="--secure --create" ...

WUWA

Search This Blog