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Boris Hamanov's questions

Martin Hope
Boris Hamanov
Asked: 2021-12-09 06:34:21 +0800 CST
  • 1

我启用并启动了以下单元

[Unit]
Description=Schedule a nightly execution at 03.15 for Backup ROOT
# Allow manual start
RefuseManualStart=no
# Allow manual stop
RefuseManualStop=no

[Timer]
#Execute job if it missed a run due to machine being off
Persistent=false
# Run every night 03.15
OnCalendar=*-*-* 03:15:00
#File describing job to execute
[email protected]

[Install]
WantedBy=timers.target

它会在每晚凌晨 3.15 点正确运行，但它也会在启动时运行，因为它会造成混乱！为什么会发生这种情况以及如何阻止它？

linux fedora
Martin Hope
Boris Hamanov
Asked: 2021-12-02 23:35:50 +0800 CST
  • 1

在 Fedora 35 上，我创建了自己的服务来安排备份。我在 /usr/local/bin/ 中有脚本，在 /lib/systemd/system/ 中有服务文件和计时器

ls -an /usr/local/bin/ 打印

-rwxr--r--. 1 0 0 3360 Dec 1 18:31 backup.sh

ls -an /lib/systemd/system/schedule-backup_root*

-rw-r--r--. 1 0 0 230 Dec  1 18:14 /lib/systemd/system/schedule-backup_root.service
-rw-r--r--. 1 0 0 388 Dec  1 16:49 /lib/systemd/system/schedule-backup_root.timer

但是当我启动服务 systemctl start schedule-backup_root.service

Dec 01 18:36:13 fallen-robot systemd[1]: Started Nightly snapshot backup job for ROOT volume.
Dec 01 18:36:13 fallen-robot systemd[75159]: schedule-backup_root.service: Failed to locate executable /usr/local/bin/backup.sh: Permission denied
Dec 01 18:36:13 fallen-robot systemd[75159]: schedule-backup_root.service: Failed at step EXEC spawning /usr/local/bin/backup.sh: Permission denied
Dec 01 18:36:13 fallen-robot systemd[1]: schedule-backup_root.service: Main process exited, code=exited, status=203/EXEC
Dec 01 18:36:13 fallen-robot systemd[1]: schedule-backup_root.service: Failed with result 'exit-code'.

我的服务文件如下所示：

[Unit]
Description=Nightly snapshot backup job for ROOT volume

[Service]
Type=simple
ExecStart=/usr/local/bin/backup.sh -s / -b /run/media/borko/BackupTest/ -t "Fallen Robot ROOT Backup Report"

[Install]
WantedBy=default.target

为什么它无法访问该文件？

linux permissions
Martin Hope
Boris Hamanov
Asked: 2021-11-26 11:34:25 +0800 CST
  • 1

我正在使用以下内容来查找和删除一组子卷：

find /.snapshots/ -name backup-* -type d -exec btrfs subvolume delete {} \;

它有效，但我从 find 中得到了意外的输出：

Delete subvolume (no-commit): '/.snapshots/backup-24-11-2021'    
find: ‘/.snapshots/backup-24-11-2021’: No such file or directory    
Delete subvolume (no-commit): '/.snapshots/backup-25-11-2021'    
find: ‘/.snapshots/backup-25-11-2021’: No such file or directory

我不是unix的专业人士，所以对我来说有点令人费解，为什么会发生这种情况？

bash shell-script
Martin Hope
Boris Hamanov
Asked: 2021-11-02 03:05:44 +0800 CST
  • 0

我在最新的 fedora 35 beta 中遇到了这个问题。

虽然我可以在日志中发现 TPM 处于活动状态，但 Clevis 加密不起作用。尝试从 BIOS 启用操作，但没有成功。

请在此处查看详细信息：

dmesg | grep -i tpm

[    0.000000] efi: ACPI=0x45bfe000 ACPI 2.0=0x45bfe014 TPMFinalLog=0x45ac5000 SMBIOS=0x439e3000 SMBIOS 3.0=0x439e1000 MEMATTR=0x3f8dc018 ESRT=0x3f8ea298 MOKvar=0x3f8df000 RNG=0x439e4b18 TPMEventLog=0x39f43018 
[    0.008084] ACPI: SSDT 0x0000000045BE1000 00077B (v02 INSYDE Tpm2Tabl 00001000 INTL 20160422)
[    0.008086] ACPI: TPM2 0x0000000045BE0000 00004C (v04 INSYDE TGL-ULT  00000002 ACPI 00040000)
[    0.008128] ACPI: Reserving TPM2 table memory at [mem 0x45be0000-0x45be004b]
[    1.192488] tpm_tis NTC0702:00: 2.0 TPM (device-id 0xFC, rev-id 1)

须藤回声嗨| clevis 加密 tpm2 '{}' > my.jwe

Place your finger on the fingerprint reader
ERROR:tcti:src/tss2-tcti/tcti-device.c:442:Tss2_Tcti_Device_Init() Failed to open specified TCTI device file /dev/tpmrm0: Permission denied 
ERROR:tcti:src/tss2-tcti/tctildr-dl.c:154:tcti_from_file() Could not initialize TCTI file: device 
ERROR:tcti:src/tss2-tcti/tctildr.c:428:Tss2_TctiLdr_Initialize_Ex() Failed to instantiate TCTI 
Error executing command: TPM error: response code not recognized

编辑：打开一个错误：https ://bugzilla.redhat.com/show_bug.cgi?id=2018978

fedora tpm