Differences

This shows you the differences between two versions of the page.

--- linux:dev1_3manage [2026/04/05 02:36] – azman
+++ linux:dev1_3manage [2026/04/05 02:44] (current) – azman
@@ Line 6: / Line 6: @@
 //**Note:** To automatically update system essentials,//<code>$ apt install unattended-upgrades ; dpkg-reconfigure --priority=low unattended-upgrades</code>
+===== Upgrading =====
+To do an upgrade:
+  * Modify ''/etc/apt/sources.list'' and replace the release codenames <code># sed -i 's/old_release/new_release/g' /etc/apt/sources.list</code>
+    * skip ''-i'' option for a dry-run
+  * Update package list <code># apt update</code>
+  * Upgrade distribution <code># apt dist-upgrade</code>
+  * To make sure EVERYTHING is upgraded (avoids old packages held back)
+    * <code># apt full-upgrade</code>
+  * Do house cleaning <code>
+# apt autoremove
+# apt clean</code>
+That should do it!
 ===== List Installed Packages =====
@@ Line 30: / Line 46: @@
 e.g. To change timezone <code># dpkg-reconfigure tzdata</code>
-===== Upgrading APT-based systems =====
-To do an upgrade:
-  * Modify ''/etc/apt/sources.list'' and replace the release codenames <code># sed -i 's/old_release/new_release/g' /etc/apt/sources.list</code>
-    * skip ''-i'' option for a dry-run
-  * Update package list <code># apt update</code>
-  * Upgrade distribution <code># apt dist-upgrade</code>
-  * To make sure EVERYTHING is upgraded (avoids old packages held back)
-    * <code># apt full-upgrade</code>
-  * Do house cleaning <code>
-# apt autoremove
-# apt clean</code>
-That should do it!
 ===== Search package for specific binary =====
@@ Line 57: / Line 57: @@
   * Use dry-run (simulation) option ''-s'' <code># apt install -s <pg1> ... <pkgN> 2>/dev/null|grep manually</code>
   * Removed the package(s) displayed from your install list and re-run without ''-s''
+===== GRUB Stuffs =====
+To prevent GRUB from looking for other OS every time it is updated:
+  * edit ''/etc/default/grub'' and insert <code>GRUB_DISABLE_OS_PROBER=true</code>
+  * run update-grub
+To add a custom entry:
+  * add a menuentry in ''/etc/grub.d/40_custom''
+  * uses the same menuentry format as in ''/boot/grub/grub.cfg''
+    * e.g. to boot my Slackware partition I can insert <code grub>
+menuentry 'Slackware' --class slackware --class gnu-linux --class gnu --class os $menuentry_id_option 'my1part-<uuid>' {
+	insmod part_gpt
+	insmod ext2
+	set root='hd0,gpt4'
+	if [ x$feature_platform_search_hint = xy ]; then
+	  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt4 --hint-efi=hd0,gpt4 --hint-baremetal=ahci0,gpt4  <uuid>
+	else
+	  search --no-floppy --fs-uuid --set=root 4d95a526-2518-4fd6-a904-f7bd2729145d
+	fi
+	linux /boot/vmlinuz-huge-4.4.240 root=/dev/sda4
+}
+</code>
+    * use ''initrd'' (after ''linux'' line) to specify an initrd/initramfs
+    * of course, <uuid> should be a valid filesystem uuid
+  * run update-grub
+===== KVM Stuffs =====
+If KVM group is missing, simply create one...
+<code># [ -z "$(cat /etc/group|grep kvm)" ] && addgroup --gid 125 kvm</code>