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Merge branch 'rustybird-over100gb'

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Andrew David Wong 2020-10-09 20:34:09 -05:00
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2
user/common-tasks/backup-emergency-restore-v2.md
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@ -68,7 +68,7 @@ encrypted and compressed.
**Note:** For multi-part files, a loop can be used:
~~~
for f in private.img.*; do
find -name 'private.img.*' | sort -V | while read f; do
openssl enc -d -pass pass:your_passphrase -aes-256-cbc -in $f -out
${f/.img/.img.dec}
done

2
user/common-tasks/backup-emergency-restore-v3.md
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@ -93,7 +93,7 @@ any GNU/Linux system with the following procedure.
5. Decrypt the `private.img` file.
[user@restore vm1]$ cat private.img.??? | openssl enc -d -pass pass:your_passphrase -aes-256-cbc -out private.img.dec
[user@restore vm1]$ find -name 'private.img.*[0-9]' | sort -V | xargs cat | openssl enc -d -pass pass:your_passphrase -aes-256-cbc -out private.img.dec
**Note:** If your backup was encrypted with a cipher algorithm other than
`aes-256-cbc`, you must substitute the correct cipher command. This

35
user/common-tasks/backup-emergency-restore-v4.md
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@ -145,39 +145,32 @@ Emergency Recovery Instructions
[user@restore ~]$ backup_id=20161020T123455-1234
6. Verify the integrity of and decrypt the `private.img` file that houses your
data.
6. Verify the integrity of your data, decrypt, decompress, and extract `private.img`:
[user@restore ~]$ for f_enc in vm1/private.img.???.enc; do \
[user@restore ~]$ find vm1 -name 'private.img.*.enc' | sort -V | while read f_enc; do \
f_dec=${f_enc%.enc}; \
echo "$backup_id!$f_dec!$backup_pass" | scrypt dec -P $f_enc $f_dec || break; \
done
**Note:** If this command fails, it is likely that the backup is corrupted
or has been tampered with.
7. Decompress and untar the decrypted `private.img` file.
[user@restore ~]$ cat vm1/private.img.??? | gzip -d | tar -xv
echo "$backup_id!$f_dec!$backup_pass" | scrypt dec -P $f_enc || break; \
done | gzip -d | tar -xv
vm1/private.img
If this pipeline fails, it is likely that the backup is corrupted or has
been tampered with.
**Note:** If your backup was compressed with a program other than `gzip`,
you must substitute the correct compression program. This information is
contained in `backup-header` (see step 4). For example, if you used `bzip2`,
then you should do this:
you must substitute the correct compression program in the command above.
This information is contained in `backup-header` (see step 4). For example,
if your backup is compressed with `bzip2`, use `bzip2 -d` instead in the
command above.
[user@restore vm1]$ mv private.img.dec private.img.dec.bz2
[user@restore vm1]$ bunzip2 private.img.dec.bz2
8. Mount `private.img` and access your data.
7. Mount `private.img` and access your data.
[user@restore vm1]$ sudo mkdir /mnt/img
[user@restore vm1]$ sudo mount -o loop vm1/private.img /mnt/img/
[user@restore vm1]$ cat /mnt/img/home/user/your_data.txt
This data has been successfully recovered!
9. Success! If you wish to recover data from more than one VM in your backup,
simply repeat steps 6--8 for each additional VM.
8. Success! If you wish to recover data from more than one VM in your backup,
simply repeat steps 6 and 7 for each additional VM.
**Note:** You may wish to store a copy of these instructions with your
Qubes backups in the event that you fail to recall the above procedure