# LinHES R6 Hints and Tips

This page will be the equivalent of TJC's Hints and Tips pages for previous Knoppmyth versions of LinHES. Please expand this guide with any information, tips or warning you feel would be useful. If you find anything missing please add it in.

## Upgrade Preparation

When upgrading to R6 with multiple drives, fix your /etc/fstab before you start to use either labels or uuid. As in the past, during an upgrade the installer inspects the root partition for this file and uses it to setup mount points. Unfortunately because R6 uses the modern SCSI emulation layer drivers for all hard disks, what used to be /dev/hdb1 is now /dev/sdb1, or possibly /dev/sda1, or /dev/sdc1, or ... Well you get the picture...

Using an unambiguous label or UUID is the best way to solve the problem. For example this is what the fstab entries for my HD and LVM volumes look like using labels:

/etc/fstab:

LABEL=Root / ext3 defaults,errors=remount-ro 0 1

LABEL=myth /myth auto defaults,auto 0 2

LABEL=swap1 none swap defaults 0 0

and this is what they'd look like using UUID.

/etc/fstab:

UUID=24f28fc6-717e-4bcd-a5f7-32b959024e26 / ext3 defaults,errors=remount-ro 0 1

UUID=03ec5dd3-45c0-4f95-a363-61ff321a09ff /myth auto defaults,auto 0 2

UUID=4209c845-f495-4c43-8a03-5363dd433153 none swap defaults 0 0

Note that the only change is to replace the device names with the appropriate LABEL/UUID identifiers.

Hint: running blkid will list the UUIDs for all of your partitions and volumes. E.g.:

root@black2:~# blkid /dev/hda1: LABEL="Root" UUID="24f28fc6-717e-4bcd-a5f7-32b959024e26" SEC_TYPE="ext2" TYPE="ext3"

/dev/hda2: LABEL="swap1" UUID="4209c845-f495-4c43-8a03-5363dd433153" TYPE="swap"

/dev/mapper/vg-myth: LABEL="myth" UUID="03ec5dd3-45c0-4f95-a363-61ff321a09ff" SEC_TYPE="ext2" TYPE="ext3"

## R6 Installation Walk-through (Detailed)

This section is for first time installs or upgrades from R5. To upgrade to a later version of R6 see the appropriate section below.

Boot the LinHES CD or USB media.

- Screen 1: Select the "Install or Upgrade" option. If upgrading, you will go directly to screen 10 and everything will be processed automatically based on your backups.

Warning: If upgrading from an R5.x box, make sure that you run the mythbackup script before you attempt an install of R6.

- Screen 2: Select a target file-system

- Screen 3: Select the type of install (Full/auto or Upgrade). Also assign partition sizes for the OS, swap, and data partitions. The defaults should be fine. Users can also select which file-system format is used. Currently the default is for ext3, but other options such as ext4/RFS/XFS/JFS are also available.

- Screen 4: Assign a host-name

Note: Make sure you are satisfied with the host-name you select since you cannot easily change it after the installation due to a number of other configuration files/mysql tables that will depend on it.

- Screen 5: Setup the network options. Users may select from wired or wireless configurations with all the standard options such as dynamic IP/static IP, devices, mtu size, etc.

Note: For more of MTU sizes a.k.a jumbo frames, see the Jumbo Frames article.

- Screen 6: Setup host options. Choices here include system configuration (standalone/frontend/master backend/slave backend). Initial resolution (i.e. SDTV or HDTV) and remote configure are also on this screen. The setup GUI contains many options for remote controls that are preconfigured for you. Users also set the option to use or not use mythwelcome on this screen.

Note: Make sure you understand the architecture of mythtv networks. A selection of standalone should only be made if this is and will be the only mythtv box on your network. For more on this, see [insertlink this] page on the official mythtv wiki.

- Screen 7: Setup timezone/zipcode

- Screen 8: Setup NFS options if media is stored on a remote NFS share. Also configure automatic updates

- Screen 9: Setup user accounts and passwords

Warning: Make sure to create a non-mythtv account, assign a root password and assign a mythtv password on this screen before you continue.

- Screen 10: Sanity check/"Are you sure you wish to continue?" screen.

This concludes the installation. The scripts will take over and in about 5 min you will reboot into your LinHES installation.

## Troubleshooting

No Sound after upgrading. Note: If you do not have sound after upgrading, try running alsaconf as root to reconfigure your alsa drivers. Then alsamixer, and finallly "alsactl store" to save the settings.

L99 99 99 99 99 99 99 If you have more than one drive the new bootloader might have the drives in the wrong order. This will result in a screen full of 99's upon booting. For example if you have a IDE/PATA drive and a SATA one, and boot from the SATA drive. As root try the following commands.

- grub

- grub> root (hd1,0)

- grub> setup (hd1)

- grub> quit

## R6.02.00 Upgrade Walk-through

If you're upgrading from a previous version of R6 it should be a pretty easy process.

- Step 1: Make a backup from the System Menu???

- Step 2: Exit the frontend and open an xterm by pressing Alt-X.

- Step 3: `sudo pacman -S linhes-scripts`

- Step 4: `sudo upgrade_to_0.22.sh`

Category:

- Audio/Video