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--- quickreference:unix [2023/10/10 15:18] – [Check SSL Cert Expiration Date] rodolico
+++ quickreference:unix [2023/10/19 17:32] – [Rename Server] rodolico
@@ Line 5: / Line 5: @@
 ===== Systems Administration =====
+==== Partitioning large drives ====
+Drives greater than 2 Terabytes are not handled well by the standard //fdisk// application, so instead we use parted. Fun Fact!!! gparted is a nice little GUI interface to this. But, we're dealing with command line stuff here.
+This assumes we have a drive, sdg, that we want to set up with gpt and create one partition on. That partition will set up on optimal sector boundries, and use all of the space available.
+<code bash>
+# remove all old file system information. Not necessary, but I do it just because I can
+wipefs -a /dev/sdg
+# make this a gpt disk. Will wipe out any other partitioning scheme
+parted /dev/sdg mklabel gpt
+# make a new partition on optimal sector boundries. This is a primary partition, and starts
+# at the beginning of the disk (0%) and goes to the end of the disk (100%)
+# I put that in quotes as, from what I've read, the percent symbol does not work well
+# within the bash command line
+# note, we are not telling it what file system to use, so it defaults to Linux
+parted -a optimal /dev/sdg mkpart primary '0%' '100%'
+# display the information on the disk
+parted /dev/sdg print
+# format as ext4, no reserved space, and a disk label marked 'backup'
+mkfs.ext4 -m0 -Lbackup /dev/sdg
+</code>
 ==== Rapidly wipe multiple hard drives ====
@@ Line 150: / Line 173: @@
 <code bash>
 # change the host name, and the postfix name if that is installed
-sed -i.old 's/oldname/newname/g' /etc/hostname /etc/hosts /etc/mailname /etc/postfix/main.cf
+sed -i.old 's/oldname/newname/g' \
+   /etc/hostname \
+   /etc/hosts \
+   /etc/mailname \
+   /etc/postfix/main.cf \
+   /etc/camp/sysinfo-client/sysinfo-client.yaml \
+   /etc/msmtprc
 /etc/init.d/hostname.sh start
 # update the aliases, if they exist