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33 lines
1.3 KiB
Bash
33 lines
1.3 KiB
Bash
#!/bin/bash
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#
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# kpartx and qumu-utils are required
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apt install cron kpartx qemu-utils -y
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# get valid loop device
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loopDevice=$(echo $(losetup -f))
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loopDeviceNum=$(echo $(losetup -f) | cut -d'/' -f 3)
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websiteDir="/www/wwwroot/cloud-images.a.disk.re/Ubuntu"
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for distName in "jammy" "focal"; do
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for archVer in "amd64" "arm64"; do
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fileName="$distName-server-cloudimg-$archVer"
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wget --no-check-certificate -qO /root/$fileName.img "https://cloud-images.ubuntu.com/$distName/current/$fileName.img"
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qemu-img convert -f qcow2 -O raw /root/$fileName.img /root/$fileName.raw
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losetup $loopDevice /root/$fileName.raw
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mapperDevice=$(kpartx -av $loopDevice | grep "$loopDeviceNum" | head -n 1 | awk '{print $3}')
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mount /dev/mapper/$mapperDevice /mnt
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sed -ri 's/GRUB_CMDLINE_LINUX=""/GRUB_CMDLINE_LINUX="net.ifnames=0 biosdevname=0"/g' /mnt/etc/default/grub
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sed -ri 's/cloudimg-rootfs ro/cloudimg-rootfs ro net.ifnames=0 biosdevname=0/g' /mnt/boot/grub/grub.cfg
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umount /mnt
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kpartx -dv $loopDevice
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losetup -d $loopDevice
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rm -rf $websiteDir/$fileName.raw
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mv /root/$fileName.raw $websiteDir/$fileName.raw
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rm -rf /root/$fileName.img
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done
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done
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# write crontab task
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if [[ ! `grep -i "autorepackimages" /etc/crontab` ]]; then
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sed -i '$i 30 4 * * 0 root bash /root/autoRepackImages.sh' /etc/crontab
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/etc/init.d/cron restart
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fi
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