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new functionality to cope with device names or missing lines
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,24 +1,102 @@ | ||
| #!/bin/bash | ||
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| mv -f /etc/fstab{,.copy} | ||
| # The intention of the fstab action is to remove any line which isn't required to allow a successfully boot of the system. | ||
| # After the fstab got altered and the system was able to be booted, the administrator needs to reapply the previous mount lines. | ||
| # With a special attention on the right UUID value of the filesystem to be mounted and the option 'nowait'added to he list of options. | ||
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| # In case the resolv.conf isn't set correct use the default resolver | ||
| resolv-pre() { | ||
| mv /etc/resolv.conf /etc/resolv.conf.org | ||
| echo "nameserver 168.63.129.16" >/etc/resolv.conf | ||
| } | ||
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| # restore the originail resolv.conf | ||
| resolv-after() { | ||
| mv /etc/resolv.conf.org /etc/resolv.conf | ||
| } | ||
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| # Save the existing fstab file | ||
| timestamp=$(date +%s) | ||
| mv -f /etc/fstab{,.copy-${timestamp}} | ||
| fstab_org="/etc/fstab.copy-${timestamp}" | ||
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| resolv-pre | ||
| # For Debian we need to instal gawk first. It comes only with mawk | ||
| if [[ -f /usr/bin/apt ]]; then | ||
| apt-get install -qq -y gawk | ||
| fi | ||
| resolv-after | ||
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| boot_efi_mnt() { | ||
| fstab_boot=$(awk '/[[:space:]]+\/boot[[:space:]]+/ {print}' ${fstab_org}) | ||
| # Non every distro has /boot on a seperate disk/partition | ||
| # Hence let us verify this before performing any unnecessary modification | ||
| if [[ -n ${fstab_boot} ]]; then | ||
| # A mount entry for boot is defiend is it UUID based? | ||
| if [[ "$fstab_boot" =~ ^[[:space:]]*UUID.* ]]; then | ||
| echo "$fstab_boot" >> /etc/fstab | ||
| else | ||
| # It is device name based, let us convert it to UUID based | ||
| fstab_boot_dev=$(awk '{print $1}'<<< "$fstab_boot") | ||
| #fstab_boot_uuid=$(blkid -o value -s UUID $(awk '{print $1}'<<< "$fstab_boot")) | ||
| # Variable boot_part_path is set by ALAR | ||
| fstab_boot_uuid=$(blkid -o value -s UUID ${boot_part_path}) | ||
| sed "s|$fstab_boot_dev|UUID=$fstab_boot_uuid|" <<< $fstab_boot >> /etc/fstab | ||
| fi | ||
| else | ||
| # We need to add the /boot to the fstab if we have a boot partition | ||
| if [[ -n ${boot_part_path} ]]; then | ||
| boot_part_fs=$(lsblk -l -o FSTYPE ${boot_part_path} | tail -n 1) | ||
| echo "UUID=$(blkid -o value -s UUID ${boot_part_path}) /boot ${boot_part_fs} defaults 0 0" >> /etc/fstab | ||
| fi | ||
| fi | ||
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| awk '/[[:space:]]+\/[[:space:]]+/ {print}' /etc/fstab.copy >>/etc/fstab | ||
| awk '/[[:space:]]+\/boot[[:space:]]+/ {print}' /etc/fstab.copy >>/etc/fstab | ||
| # For Suse | ||
| awk '/[[:space:]]+\/boot\/efi[[:space:]]+/ {print}' /etc/fstab.copy >>/etc/fstab | ||
| # In case we have a LVM system | ||
| awk '/rootvg-homelv/ {print}' /etc/fstab.copy >>/etc/fstab | ||
| awk '/rootvg-optlv/ {print}' /etc/fstab.copy >>/etc/fstab | ||
| awk '/rootvg-tmplv/ {print}' /etc/fstab.copy >>/etc/fstab | ||
| awk '/rootvg-usrlv/ {print}' /etc/fstab.copy >>/etc/fstab | ||
| awk '/rootvg-varlv/ {print}' /etc/fstab.copy >>/etc/fstab | ||
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| fstab_efi=$(awk '/[[:space:]]+\/boot\/efi[[:space:]]+/ {print}' ${fstab_org}) | ||
| if [[ -n ${fstab_efi} ]]; then | ||
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| if [[ "$fstab_efi" =~ ^[[:space:]]*UUID.* ]]; then | ||
| echo "$fstab_efi" >> /etc/fstab | ||
| else | ||
| fstab_efi_dev=$(awk '{print $1}'<<< "$fstab_efi") | ||
| # Variable efi_part_path is set by ALAR | ||
| fstab_efi_uuid=$(blkid -o value -s UUID ${efi_part_path}) | ||
| sed "s|$fstab_efi_dev|UUID=$fstab_efi_uuid|" <<< $fstab_efi >> /etc/fstab | ||
| fi | ||
| else | ||
| # In this branch we need to add the /boot/efi to the fstab. If we have a efi partition | ||
| if [[ -n ${efi_part_path} ]]; then | ||
| efi_part_fs=$(lsblk -l -o FSTYPE ${efi_part_path} | tail -n 1) | ||
| echo "UUID=$(blkid -o value -s UUID ${efi_part_path}) /boot/efi ${efi_part_fs} defaults 0 0" >> /etc/fstab | ||
| fi | ||
| fi | ||
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| # The resource-disk we include in this function as well | ||
| awk '/\/dev\/disk\/cloud\/azure_resource-part1/ {print}' ${fstab_org} >>/etc/fstab | ||
| } | ||
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| if [[ ${isLVM} != "true" ]]; then | ||
| fstab_root=$(awk '/[[:space:]]+\/[[:space:]]+/ {print}' ${fstab_org}) | ||
| if [[ "$fstab_root" =~ ^[[:space:]]*UUID.* ]]; then | ||
| echo "$fstab_root" >> /etc/fstab | ||
| else | ||
| fstab_root_dev=$(awk '{print $1}'<<< "$fstab_root") | ||
| fstab_root_uuid=$(blkid -o value -s UUID $(awk '{print $1}'<<< "$fstab_root")) | ||
| sed "s|$fstab_root_dev|UUID=$fstab_root_uuid|" <<< $fstab_root >> /etc/fstab | ||
| fi | ||
| boot_efi_mnt | ||
| else | ||
| awk '/rootvg-rootlv/ {print}' ${fstab_org} >>/etc/fstab | ||
| boot_efi_mnt | ||
| awk '/rootvg-homelv/ {print}' ${fstab_org} >>/etc/fstab | ||
| awk '/rootvg-optlv/ {print}' ${fstab_org} >>/etc/fstab | ||
| awk '/rootvg-tmplv/ {print}' ${fstab_org} >>/etc/fstab | ||
| awk '/rootvg-usrlv/ {print}' ${fstab_org} >>/etc/fstab | ||
| awk '/rootvg-varlv/ {print}' ${fstab_org} >>/etc/fstab | ||
| fi | ||
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| echo "Content of fstab after running the script -->" | ||
| cat /etc/fstab | ||
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| exit 0 | ||
| exit 0 |